diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index c003094..b60728c 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -77,6 +77,7 @@
     psa_crypto_slot_management.c
     psa_crypto_storage.c
     psa_its_file.c
+    psa_util.c
     ripemd160.c
     rsa.c
     rsa_alt_helpers.c
@@ -272,6 +273,10 @@
         target_link_libraries(${mbedcrypto_static_target} PUBLIC everest)
     endif()
 
+    if(TARGET p256m)
+        target_link_libraries(${mbedcrypto_static_target} PUBLIC p256m)
+    endif()
+
     add_library(${mbedx509_static_target} STATIC ${src_x509})
     set_target_properties(${mbedx509_static_target} PROPERTIES OUTPUT_NAME mbedx509)
     target_link_libraries(${mbedx509_static_target} PUBLIC ${libs} ${mbedcrypto_static_target})
@@ -284,19 +289,23 @@
 if(USE_SHARED_MBEDTLS_LIBRARY)
     set(CMAKE_LIBRARY_PATH ${CMAKE_CURRENT_BINARY_DIR})
     add_library(${mbedcrypto_target} SHARED ${src_crypto})
-    set_target_properties(${mbedcrypto_target} PROPERTIES VERSION 3.3.0 SOVERSION 13)
+    set_target_properties(${mbedcrypto_target} PROPERTIES VERSION 3.4.0 SOVERSION 14)
     target_link_libraries(${mbedcrypto_target} PUBLIC ${libs})
 
     if(TARGET everest)
         target_link_libraries(${mbedcrypto_target} PUBLIC everest)
     endif()
 
+    if(TARGET p256m)
+        target_link_libraries(${mbedcrypto_target} PUBLIC p256m)
+    endif()
+
     add_library(${mbedx509_target} SHARED ${src_x509})
-    set_target_properties(${mbedx509_target} PROPERTIES VERSION 3.3.0 SOVERSION 4)
+    set_target_properties(${mbedx509_target} PROPERTIES VERSION 3.4.0 SOVERSION 5)
     target_link_libraries(${mbedx509_target} PUBLIC ${libs} ${mbedcrypto_target})
 
     add_library(${mbedtls_target} SHARED ${src_tls})
-    set_target_properties(${mbedtls_target} PROPERTIES VERSION 3.3.0 SOVERSION 19)
+    set_target_properties(${mbedtls_target} PROPERTIES VERSION 3.4.0 SOVERSION 19)
     target_link_libraries(${mbedtls_target} PUBLIC ${libs} ${mbedx509_target})
 endif(USE_SHARED_MBEDTLS_LIBRARY)
 
diff --git a/library/Makefile b/library/Makefile
index 298073a..4e02bcd 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -48,8 +48,8 @@
 endif
 
 SOEXT_TLS?=so.19
-SOEXT_X509?=so.4
-SOEXT_CRYPTO?=so.13
+SOEXT_X509?=so.5
+SOEXT_CRYPTO?=so.14
 
 # Set AR_DASH= (empty string) to use an ar implementation that does not accept
 # the - prefix for command line options (e.g. llvm-ar)
@@ -142,6 +142,7 @@
 	     psa_crypto_slot_management.o \
 	     psa_crypto_storage.o \
 	     psa_its_file.o \
+	     psa_util.o \
 	     ripemd160.o \
 	     rsa.o \
 	     rsa_alt_helpers.o \
diff --git a/library/aes.c b/library/aes.c
index 64392fc..69da582 100644
--- a/library/aes.c
+++ b/library/aes.c
@@ -47,8 +47,7 @@
 
 #if !defined(MBEDTLS_AES_ALT)
 
-#if defined(MBEDTLS_PADLOCK_C) &&                      \
-    (defined(MBEDTLS_HAVE_X86) || defined(MBEDTLS_PADLOCK_ALIGN16))
+#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
 static int aes_padlock_ace = -1;
 #endif
 
@@ -505,6 +504,53 @@
 }
 #endif /* MBEDTLS_CIPHER_MODE_XTS */
 
+/* Some implementations need the round keys to be aligned.
+ * Return an offset to be added to buf, such that (buf + offset) is
+ * correctly aligned.
+ * Note that the offset is in units of elements of buf, i.e. 32-bit words,
+ * i.e. an offset of 1 means 4 bytes and so on.
+ */
+#if (defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)) ||        \
+    (defined(MBEDTLS_AESNI_C) && MBEDTLS_AESNI_HAVE_CODE == 2)
+#define MAY_NEED_TO_ALIGN
+#endif
+static unsigned mbedtls_aes_rk_offset(uint32_t *buf)
+{
+#if defined(MAY_NEED_TO_ALIGN)
+    int align_16_bytes = 0;
+
+#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
+    if (aes_padlock_ace == -1) {
+        aes_padlock_ace = mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE);
+    }
+    if (aes_padlock_ace) {
+        align_16_bytes = 1;
+    }
+#endif
+
+#if defined(MBEDTLS_AESNI_C) && MBEDTLS_AESNI_HAVE_CODE == 2
+    if (mbedtls_aesni_has_support(MBEDTLS_AESNI_AES)) {
+        align_16_bytes = 1;
+    }
+#endif
+
+    if (align_16_bytes) {
+        /* These implementations needs 16-byte alignment
+         * for the round key array. */
+        unsigned delta = ((uintptr_t) buf & 0x0000000fU) / 4;
+        if (delta == 0) {
+            return 0;
+        } else {
+            return 4 - delta; // 16 bytes = 4 uint32_t
+        }
+    }
+#else /* MAY_NEED_TO_ALIGN */
+    (void) buf;
+#endif /* MAY_NEED_TO_ALIGN */
+
+    return 0;
+}
+
 /*
  * AES key schedule (encryption)
  */
@@ -529,19 +575,10 @@
     }
 #endif
 
-    ctx->rk_offset = 0;
-#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
-    if (aes_padlock_ace == -1) {
-        aes_padlock_ace = mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE);
-    }
-
-    if (aes_padlock_ace) {
-        ctx->rk_offset = MBEDTLS_PADLOCK_ALIGN16(ctx->buf) - ctx->buf;
-    }
-#endif
+    ctx->rk_offset = mbedtls_aes_rk_offset(ctx->buf);
     RK = ctx->buf + ctx->rk_offset;
 
-#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
     if (mbedtls_aesni_has_support(MBEDTLS_AESNI_AES)) {
         return mbedtls_aesni_setkey_enc((unsigned char *) RK, key, keybits);
     }
@@ -634,16 +671,7 @@
 
     mbedtls_aes_init(&cty);
 
-    ctx->rk_offset = 0;
-#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_PADLOCK_ALIGN16)
-    if (aes_padlock_ace == -1) {
-        aes_padlock_ace = mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE);
-    }
-
-    if (aes_padlock_ace) {
-        ctx->rk_offset = MBEDTLS_PADLOCK_ALIGN16(ctx->buf) - ctx->buf;
-    }
-#endif
+    ctx->rk_offset = mbedtls_aes_rk_offset(ctx->buf);
     RK = ctx->buf + ctx->rk_offset;
 
     /* Also checks keybits */
@@ -653,7 +681,7 @@
 
     ctx->nr = cty.nr;
 
-#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
     if (mbedtls_aesni_has_support(MBEDTLS_AESNI_AES)) {
         mbedtls_aesni_inverse_key((unsigned char *) RK,
                                   (const unsigned char *) (cty.buf + cty.rk_offset), ctx->nr);
@@ -945,6 +973,26 @@
 }
 #endif /* !MBEDTLS_AES_DECRYPT_ALT */
 
+#if defined(MAY_NEED_TO_ALIGN)
+/* VIA Padlock and our intrinsics-based implementation of AESNI require
+ * the round keys to be aligned on a 16-byte boundary. We take care of this
+ * before creating them, but the AES context may have moved (this can happen
+ * if the library is called from a language with managed memory), and in later
+ * calls it might have a different alignment with respect to 16-byte memory.
+ * So we may need to realign.
+ */
+static void aes_maybe_realign(mbedtls_aes_context *ctx)
+{
+    unsigned new_offset = mbedtls_aes_rk_offset(ctx->buf);
+    if (new_offset != ctx->rk_offset) {
+        memmove(ctx->buf + new_offset,     // new address
+                ctx->buf + ctx->rk_offset, // current address
+                (ctx->nr + 1) * 16);       // number of round keys * bytes per rk
+        ctx->rk_offset = new_offset;
+    }
+}
+#endif
+
 /*
  * AES-ECB block encryption/decryption
  */
@@ -957,7 +1005,11 @@
         return MBEDTLS_ERR_AES_BAD_INPUT_DATA;
     }
 
-#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
+#if defined(MAY_NEED_TO_ALIGN)
+    aes_maybe_realign(ctx);
+#endif
+
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
     if (mbedtls_aesni_has_support(MBEDTLS_AESNI_AES)) {
         return mbedtls_aesni_crypt_ecb(ctx, mode, input, output);
     }
@@ -971,13 +1023,7 @@
 
 #if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
     if (aes_padlock_ace > 0) {
-        if (mbedtls_padlock_xcryptecb(ctx, mode, input, output) == 0) {
-            return 0;
-        }
-
-        // If padlock data misaligned, we just fall back to
-        // unaccelerated mode
-        //
+        return mbedtls_padlock_xcryptecb(ctx, mode, input, output);
     }
 #endif
 
@@ -1729,6 +1775,29 @@
     memset(key, 0, 32);
     mbedtls_aes_init(&ctx);
 
+    if (verbose != 0) {
+#if defined(MBEDTLS_AES_ALT)
+        mbedtls_printf("  AES note: alternative implementation.\n");
+#else /* MBEDTLS_AES_ALT */
+#if defined(MBEDTLS_PADLOCK_C) && defined(MBEDTLS_HAVE_X86)
+        if (mbedtls_padlock_has_support(MBEDTLS_PADLOCK_ACE)) {
+            mbedtls_printf("  AES note: using VIA Padlock.\n");
+        } else
+#endif
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
+        if (mbedtls_aesni_has_support(MBEDTLS_AESNI_AES)) {
+            mbedtls_printf("  AES note: using AESNI.\n");
+        } else
+#endif
+#if defined(MBEDTLS_AESCE_C) && defined(MBEDTLS_HAVE_ARM64)
+        if (mbedtls_aesce_has_support()) {
+            mbedtls_printf("  AES note: using AESCE.\n");
+        } else
+#endif
+        mbedtls_printf("  AES note: built-in implementation.\n");
+#endif /* MBEDTLS_AES_ALT */
+    }
+
     /*
      * ECB mode
      */
diff --git a/library/aesce.c b/library/aesce.c
index ee0c8e1..ff8c2e0 100644
--- a/library/aesce.c
+++ b/library/aesce.c
@@ -1,5 +1,5 @@
 /*
- *  Arm64 crypto extension support functions
+ *  Armv8-A Cryptographic Extension support functions for Aarch64
  *
  *  Copyright The Mbed TLS Contributors
  *  SPDX-License-Identifier: Apache-2.0
@@ -17,6 +17,28 @@
  *  limitations under the License.
  */
 
+#if defined(__aarch64__) && !defined(__ARM_FEATURE_CRYPTO) && \
+    defined(__clang__) && __clang_major__ >= 4
+/* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged.
+ *
+ * The intrinsic declaration are guarded by predefined ACLE macros in clang:
+ * these are normally only enabled by the -march option on the command line.
+ * By defining the macros ourselves we gain access to those declarations without
+ * requiring -march on the command line.
+ *
+ * `arm_neon.h` could be included by any header file, so we put these defines
+ * at the top of this file, before any includes.
+ */
+#define __ARM_FEATURE_CRYPTO 1
+/* See: https://arm-software.github.io/acle/main/acle.html#cryptographic-extensions
+ *
+ * `__ARM_FEATURE_CRYPTO` is deprecated, but we need to continue to specify it
+ * for older compilers.
+ */
+#define __ARM_FEATURE_AES    1
+#define MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG
+#endif
+
 #include <string.h>
 #include "common.h"
 
@@ -26,22 +48,36 @@
 
 #if defined(MBEDTLS_HAVE_ARM64)
 
+/* Compiler version checks. */
 #if defined(__clang__)
 #   if __clang_major__ < 4
-#       error "A more recent Clang is required for MBEDTLS_AESCE_C"
+#       error "Minimum version of Clang for MBEDTLS_AESCE_C is 4.0."
 #   endif
 #elif defined(__GNUC__)
 #   if __GNUC__ < 6
-#       error "A more recent GCC is required for MBEDTLS_AESCE_C"
+#       error "Minimum version of GCC for MBEDTLS_AESCE_C is 6.0."
 #   endif
-#else
-#    error "Only GCC and Clang supported for MBEDTLS_AESCE_C"
+#elif defined(_MSC_VER)
+/* TODO: We haven't verified MSVC from 1920 to 1928. If someone verified that,
+ *       please update this and document of `MBEDTLS_AESCE_C` in
+ *       `mbedtls_config.h`. */
+#   if _MSC_VER < 1929
+#       error "Minimum version of MSVC for MBEDTLS_AESCE_C is 2019 version 16.11.2."
+#   endif
 #endif
 
-#if !defined(__ARM_FEATURE_CRYPTO)
-#   error "`crypto` feature moddifier MUST be enabled for MBEDTLS_AESCE_C."
-#   error "Typical option for GCC and Clang is `-march=armv8-a+crypto`."
-#endif /* !__ARM_FEATURE_CRYPTO */
+#if !defined(__ARM_FEATURE_AES) || defined(MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG)
+#   if defined(__clang__)
+#       pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function)
+#       define MBEDTLS_POP_TARGET_PRAGMA
+#   elif defined(__GNUC__)
+#       pragma GCC push_options
+#       pragma GCC target ("arch=armv8-a+crypto")
+#       define MBEDTLS_POP_TARGET_PRAGMA
+#   elif defined(_MSC_VER)
+#       error "Required feature(__ARM_FEATURE_AES) is not enabled."
+#   endif
+#endif /* !__ARM_FEATURE_AES || MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG */
 
 #include <arm_neon.h>
 
@@ -188,14 +224,14 @@
                                     0x20, 0x40, 0x80, 0x1b, 0x36 };
     /* See https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf
      *   - Section 5, Nr = Nk + 6
-     *   - Section 5.2, the key expansion size is Nb*(Nr+1)
+     *   - Section 5.2, the length of round keys is Nb*(Nr+1)
      */
     const uint32_t key_len_in_words = key_bit_length / 32;  /* Nk */
     const size_t round_key_len_in_words = 4;                /* Nb */
-    const size_t round_keys_needed = key_len_in_words + 6;  /* Nr */
-    const size_t key_expansion_size_in_words =
-        round_key_len_in_words * (round_keys_needed + 1);   /* Nb*(Nr+1) */
-    const uint32_t *rko_end = (uint32_t *) rk + key_expansion_size_in_words;
+    const size_t rounds_needed = key_len_in_words + 6;      /* Nr */
+    const size_t round_keys_len_in_words =
+        round_key_len_in_words * (rounds_needed + 1);       /* Nb*(Nr+1) */
+    const uint32_t *rko_end = (uint32_t *) rk + round_keys_len_in_words;
 
     memcpy(rk, key, key_len_in_words * 4);
 
@@ -252,6 +288,153 @@
     return 0;
 }
 
+#if defined(MBEDTLS_GCM_C)
+
+#if !defined(__clang__) && defined(__GNUC__) && __GNUC__ == 5
+/* Some intrinsics are not available for GCC 5.X. */
+#define vreinterpretq_p64_u8(a) ((poly64x2_t) a)
+#define vreinterpretq_u8_p128(a) ((uint8x16_t) a)
+static inline poly64_t vget_low_p64(poly64x2_t __a)
+{
+    uint64x2_t tmp = (uint64x2_t) (__a);
+    uint64x1_t lo = vcreate_u64(vgetq_lane_u64(tmp, 0));
+    return (poly64_t) (lo);
+}
+#endif /* !__clang__ && __GNUC__ && __GNUC__ == 5*/
+
+/* vmull_p64/vmull_high_p64 wrappers.
+ *
+ * Older compilers miss some intrinsic functions for `poly*_t`. We use
+ * uint8x16_t and uint8x16x3_t as input/output parameters.
+ */
+#if defined(__GNUC__) && !defined(__clang__)
+/* GCC reports incompatible type error without cast. GCC think poly64_t and
+ * poly64x1_t are different, that is different with MSVC and Clang. */
+#define MBEDTLS_VMULL_P64(a, b) vmull_p64((poly64_t) a, (poly64_t) b)
+#else
+/* MSVC reports `error C2440: 'type cast'` with cast. Clang does not report
+ * error with/without cast. And I think poly64_t and poly64x1_t are same, no
+ * cast for clang also. */
+#define MBEDTLS_VMULL_P64(a, b) vmull_p64(a, b)
+#endif
+static inline uint8x16_t pmull_low(uint8x16_t a, uint8x16_t b)
+{
+
+    return vreinterpretq_u8_p128(
+        MBEDTLS_VMULL_P64(
+            vget_low_p64(vreinterpretq_p64_u8(a)),
+            vget_low_p64(vreinterpretq_p64_u8(b))
+            ));
+}
+
+static inline uint8x16_t pmull_high(uint8x16_t a, uint8x16_t b)
+{
+    return vreinterpretq_u8_p128(
+        vmull_high_p64(vreinterpretq_p64_u8(a),
+                       vreinterpretq_p64_u8(b)));
+}
+
+/* GHASH does 128b polynomial multiplication on block in GF(2^128) defined by
+ * `x^128 + x^7 + x^2 + x + 1`.
+ *
+ * Arm64 only has 64b->128b polynomial multipliers, we need to do 4 64b
+ * multiplies to generate a 128b.
+ *
+ * `poly_mult_128` executes polynomial multiplication and outputs 256b that
+ * represented by 3 128b due to code size optimization.
+ *
+ * Output layout:
+ * |            |             |             |
+ * |------------|-------------|-------------|
+ * | ret.val[0] | h3:h2:00:00 | high   128b |
+ * | ret.val[1] |   :m2:m1:00 | middle 128b |
+ * | ret.val[2] |   :  :l1:l0 | low    128b |
+ */
+static inline uint8x16x3_t poly_mult_128(uint8x16_t a, uint8x16_t b)
+{
+    uint8x16x3_t ret;
+    uint8x16_t h, m, l; /* retval high/middle/low */
+    uint8x16_t c, d, e;
+
+    h = pmull_high(a, b);                       /* h3:h2:00:00 = a1*b1 */
+    l = pmull_low(a, b);                        /*   :  :l1:l0 = a0*b0 */
+    c = vextq_u8(b, b, 8);                      /*      :c1:c0 = b0:b1 */
+    d = pmull_high(a, c);                       /*   :d2:d1:00 = a1*b0 */
+    e = pmull_low(a, c);                        /*   :e2:e1:00 = a0*b1 */
+    m = veorq_u8(d, e);                         /*   :m2:m1:00 = d + e */
+
+    ret.val[0] = h;
+    ret.val[1] = m;
+    ret.val[2] = l;
+    return ret;
+}
+
+/*
+ * Modulo reduction.
+ *
+ * See: https://www.researchgate.net/publication/285612706_Implementing_GCM_on_ARMv8
+ *
+ * Section 4.3
+ *
+ * Modular reduction is slightly more complex. Write the GCM modulus as f(z) =
+ * z^128 +r(z), where r(z) = z^7+z^2+z+ 1. The well known approach is to
+ * consider that z^128 ≡r(z) (mod z^128 +r(z)), allowing us to write the 256-bit
+ * operand to be reduced as a(z) = h(z)z^128 +l(z)≡h(z)r(z) + l(z). That is, we
+ * simply multiply the higher part of the operand by r(z) and add it to l(z). If
+ * the result is still larger than 128 bits, we reduce again.
+ */
+static inline uint8x16_t poly_mult_reduce(uint8x16x3_t input)
+{
+    uint8x16_t const ZERO = vdupq_n_u8(0);
+
+    uint64x2_t r = vreinterpretq_u64_u8(vdupq_n_u8(0x87));
+#if defined(__GNUC__)
+    /* use 'asm' as an optimisation barrier to prevent loading MODULO from
+     * memory. It is for GNUC compatible compilers.
+     */
+    asm ("" : "+w" (r));
+#endif
+    uint8x16_t const MODULO = vreinterpretq_u8_u64(vshrq_n_u64(r, 64 - 8));
+    uint8x16_t h, m, l; /* input high/middle/low 128b */
+    uint8x16_t c, d, e, f, g, n, o;
+    h = input.val[0];            /* h3:h2:00:00                          */
+    m = input.val[1];            /*   :m2:m1:00                          */
+    l = input.val[2];            /*   :  :l1:l0                          */
+    c = pmull_high(h, MODULO);   /*   :c2:c1:00 = reduction of h3        */
+    d = pmull_low(h, MODULO);    /*   :  :d1:d0 = reduction of h2        */
+    e = veorq_u8(c, m);          /*   :e2:e1:00 = m2:m1:00 + c2:c1:00    */
+    f = pmull_high(e, MODULO);   /*   :  :f1:f0 = reduction of e2        */
+    g = vextq_u8(ZERO, e, 8);    /*   :  :g1:00 = e1:00                  */
+    n = veorq_u8(d, l);          /*   :  :n1:n0 = d1:d0 + l1:l0          */
+    o = veorq_u8(n, f);          /*       o1:o0 = f1:f0 + n1:n0          */
+    return veorq_u8(o, g);       /*             = o1:o0 + g1:00          */
+}
+
+/*
+ * GCM multiplication: c = a times b in GF(2^128)
+ */
+void mbedtls_aesce_gcm_mult(unsigned char c[16],
+                            const unsigned char a[16],
+                            const unsigned char b[16])
+{
+    uint8x16_t va, vb, vc;
+    va = vrbitq_u8(vld1q_u8(&a[0]));
+    vb = vrbitq_u8(vld1q_u8(&b[0]));
+    vc = vrbitq_u8(poly_mult_reduce(poly_mult_128(va, vb)));
+    vst1q_u8(&c[0], vc);
+}
+
+#endif /* MBEDTLS_GCM_C */
+
+#if defined(MBEDTLS_POP_TARGET_PRAGMA)
+#if defined(__clang__)
+#pragma clang attribute pop
+#elif defined(__GNUC__)
+#pragma GCC pop_options
+#endif
+#undef MBEDTLS_POP_TARGET_PRAGMA
+#endif
+
 #endif /* MBEDTLS_HAVE_ARM64 */
 
 #endif /* MBEDTLS_AESCE_C */
diff --git a/library/aesce.h b/library/aesce.h
index da42446..7048d77 100644
--- a/library/aesce.h
+++ b/library/aesce.h
@@ -1,8 +1,8 @@
 /**
  * \file aesce.h
  *
- * \brief AES-CE for hardware AES acceleration on ARMv8 processors with crypto
- *        extension.
+ * \brief Support hardware AES acceleration on Armv8-A processors with
+ *        the Armv8-A Cryptographic Extension in AArch64 execution state.
  *
  * \warning These functions are only for internal use by other library
  *          functions; you must not call them directly.
@@ -30,11 +30,11 @@
 
 #include "mbedtls/aes.h"
 
-
-#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && \
-    defined(__aarch64__) && !defined(MBEDTLS_HAVE_ARM64)
+#if !defined(MBEDTLS_HAVE_ARM64)
+#if defined(__aarch64__) || defined(_M_ARM64) || defined(_M_ARM64EC)
 #define MBEDTLS_HAVE_ARM64
 #endif
+#endif
 
 #if defined(MBEDTLS_HAVE_ARM64)
 
@@ -65,6 +65,24 @@
                             unsigned char output[16]);
 
 /**
+ * \brief          Internal GCM multiplication: c = a * b in GF(2^128)
+ *
+ * \note           This function is only for internal use by other library
+ *                 functions; you must not call it directly.
+ *
+ * \param c        Result
+ * \param a        First operand
+ * \param b        Second operand
+ *
+ * \note           Both operands and result are bit strings interpreted as
+ *                 elements of GF(2^128) as per the GCM spec.
+ */
+void mbedtls_aesce_gcm_mult(unsigned char c[16],
+                            const unsigned char a[16],
+                            const unsigned char b[16]);
+
+
+/**
  * \brief           Internal round key inversion. This function computes
  *                  decryption round keys from the encryption round keys.
  *
diff --git a/library/aesni.c b/library/aesni.c
index f6b304d..a23c5b5 100644
--- a/library/aesni.c
+++ b/library/aesni.c
@@ -18,26 +18,26 @@
  */
 
 /*
- * [AES-WP] http://software.intel.com/en-us/articles/intel-advanced-encryption-standard-aes-instructions-set
- * [CLMUL-WP] http://software.intel.com/en-us/articles/intel-carry-less-multiplication-instruction-and-its-usage-for-computing-the-gcm-mode/
+ * [AES-WP] https://www.intel.com/content/www/us/en/developer/articles/tool/intel-advanced-encryption-standard-aes-instructions-set.html
+ * [CLMUL-WP] https://www.intel.com/content/www/us/en/develop/download/intel-carry-less-multiplication-instruction-and-its-usage-for-computing-the-gcm-mode.html
  */
 
 #include "common.h"
 
 #if defined(MBEDTLS_AESNI_C)
 
-#if defined(__has_feature)
-#if __has_feature(memory_sanitizer)
-#warning \
-    "MBEDTLS_AESNI_C is known to cause spurious error reports with some memory sanitizers as they do not understand the assembly code."
-#endif
-#endif
-
 #include "aesni.h"
 
 #include <string.h>
 
-#if defined(MBEDTLS_HAVE_X86_64)
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
+
+#if MBEDTLS_AESNI_HAVE_CODE == 2
+#if !defined(_WIN32)
+#include <cpuid.h>
+#endif
+#include <immintrin.h>
+#endif
 
 /*
  * AES-NI support detection routine
@@ -48,17 +48,355 @@
     static unsigned int c = 0;
 
     if (!done) {
+#if MBEDTLS_AESNI_HAVE_CODE == 2
+        static unsigned info[4] = { 0, 0, 0, 0 };
+#if defined(_MSC_VER)
+        __cpuid(info, 1);
+#else
+        __cpuid(1, info[0], info[1], info[2], info[3]);
+#endif
+        c = info[2];
+#else /* AESNI using asm */
         asm ("movl  $1, %%eax   \n\t"
              "cpuid             \n\t"
              : "=c" (c)
              :
              : "eax", "ebx", "edx");
+#endif /* MBEDTLS_AESNI_HAVE_CODE */
         done = 1;
     }
 
     return (c & what) != 0;
 }
 
+#if MBEDTLS_AESNI_HAVE_CODE == 2
+
+/*
+ * AES-NI AES-ECB block en(de)cryption
+ */
+int mbedtls_aesni_crypt_ecb(mbedtls_aes_context *ctx,
+                            int mode,
+                            const unsigned char input[16],
+                            unsigned char output[16])
+{
+    const __m128i *rk = (const __m128i *) (ctx->buf + ctx->rk_offset);
+    unsigned nr = ctx->nr; // Number of remaining rounds
+
+    // Load round key 0
+    __m128i state;
+    memcpy(&state, input, 16);
+    state = _mm_xor_si128(state, rk[0]);  // state ^= *rk;
+    ++rk;
+    --nr;
+
+    if (mode == 0) {
+        while (nr != 0) {
+            state = _mm_aesdec_si128(state, *rk);
+            ++rk;
+            --nr;
+        }
+        state = _mm_aesdeclast_si128(state, *rk);
+    } else {
+        while (nr != 0) {
+            state = _mm_aesenc_si128(state, *rk);
+            ++rk;
+            --nr;
+        }
+        state = _mm_aesenclast_si128(state, *rk);
+    }
+
+    memcpy(output, &state, 16);
+    return 0;
+}
+
+/*
+ * GCM multiplication: c = a times b in GF(2^128)
+ * Based on [CLMUL-WP] algorithms 1 (with equation 27) and 5.
+ */
+
+static void gcm_clmul(const __m128i aa, const __m128i bb,
+                      __m128i *cc, __m128i *dd)
+{
+    /*
+     * Caryless multiplication dd:cc = aa * bb
+     * using [CLMUL-WP] algorithm 1 (p. 12).
+     */
+    *cc = _mm_clmulepi64_si128(aa, bb, 0x00); // a0*b0 = c1:c0
+    *dd = _mm_clmulepi64_si128(aa, bb, 0x11); // a1*b1 = d1:d0
+    __m128i ee = _mm_clmulepi64_si128(aa, bb, 0x10); // a0*b1 = e1:e0
+    __m128i ff = _mm_clmulepi64_si128(aa, bb, 0x01); // a1*b0 = f1:f0
+    ff = _mm_xor_si128(ff, ee);                      // e1+f1:e0+f0
+    ee = ff;                                         // e1+f1:e0+f0
+    ff = _mm_srli_si128(ff, 8);                      // 0:e1+f1
+    ee = _mm_slli_si128(ee, 8);                      // e0+f0:0
+    *dd = _mm_xor_si128(*dd, ff);                    // d1:d0+e1+f1
+    *cc = _mm_xor_si128(*cc, ee);                    // c1+e0+f0:c0
+}
+
+static void gcm_shift(__m128i *cc, __m128i *dd)
+{
+    /* [CMUCL-WP] Algorithm 5 Step 1: shift cc:dd one bit to the left,
+     * taking advantage of [CLMUL-WP] eq 27 (p. 18). */
+    //                                        // *cc = r1:r0
+    //                                        // *dd = r3:r2
+    __m128i cc_lo = _mm_slli_epi64(*cc, 1);   // r1<<1:r0<<1
+    __m128i dd_lo = _mm_slli_epi64(*dd, 1);   // r3<<1:r2<<1
+    __m128i cc_hi = _mm_srli_epi64(*cc, 63);  // r1>>63:r0>>63
+    __m128i dd_hi = _mm_srli_epi64(*dd, 63);  // r3>>63:r2>>63
+    __m128i xmm5 = _mm_srli_si128(cc_hi, 8);  // 0:r1>>63
+    cc_hi = _mm_slli_si128(cc_hi, 8);         // r0>>63:0
+    dd_hi = _mm_slli_si128(dd_hi, 8);         // 0:r1>>63
+
+    *cc = _mm_or_si128(cc_lo, cc_hi);         // r1<<1|r0>>63:r0<<1
+    *dd = _mm_or_si128(_mm_or_si128(dd_lo, dd_hi), xmm5); // r3<<1|r2>>62:r2<<1|r1>>63
+}
+
+static __m128i gcm_reduce(__m128i xx)
+{
+    //                                            // xx = x1:x0
+    /* [CLMUL-WP] Algorithm 5 Step 2 */
+    __m128i aa = _mm_slli_epi64(xx, 63);          // x1<<63:x0<<63 = stuff:a
+    __m128i bb = _mm_slli_epi64(xx, 62);          // x1<<62:x0<<62 = stuff:b
+    __m128i cc = _mm_slli_epi64(xx, 57);          // x1<<57:x0<<57 = stuff:c
+    __m128i dd = _mm_slli_si128(_mm_xor_si128(_mm_xor_si128(aa, bb), cc), 8); // a+b+c:0
+    return _mm_xor_si128(dd, xx);                 // x1+a+b+c:x0 = d:x0
+}
+
+static __m128i gcm_mix(__m128i dx)
+{
+    /* [CLMUL-WP] Algorithm 5 Steps 3 and 4 */
+    __m128i ee = _mm_srli_epi64(dx, 1);           // e1:x0>>1 = e1:e0'
+    __m128i ff = _mm_srli_epi64(dx, 2);           // f1:x0>>2 = f1:f0'
+    __m128i gg = _mm_srli_epi64(dx, 7);           // g1:x0>>7 = g1:g0'
+
+    // e0'+f0'+g0' is almost e0+f0+g0, except for some missing
+    // bits carried from d. Now get those bits back in.
+    __m128i eh = _mm_slli_epi64(dx, 63);          // d<<63:stuff
+    __m128i fh = _mm_slli_epi64(dx, 62);          // d<<62:stuff
+    __m128i gh = _mm_slli_epi64(dx, 57);          // d<<57:stuff
+    __m128i hh = _mm_srli_si128(_mm_xor_si128(_mm_xor_si128(eh, fh), gh), 8); // 0:missing bits of d
+
+    return _mm_xor_si128(_mm_xor_si128(_mm_xor_si128(_mm_xor_si128(ee, ff), gg), hh), dx);
+}
+
+void mbedtls_aesni_gcm_mult(unsigned char c[16],
+                            const unsigned char a[16],
+                            const unsigned char b[16])
+{
+    __m128i aa, bb, cc, dd;
+
+    /* The inputs are in big-endian order, so byte-reverse them */
+    for (size_t i = 0; i < 16; i++) {
+        ((uint8_t *) &aa)[i] = a[15 - i];
+        ((uint8_t *) &bb)[i] = b[15 - i];
+    }
+
+    gcm_clmul(aa, bb, &cc, &dd);
+    gcm_shift(&cc, &dd);
+    /*
+     * Now reduce modulo the GCM polynomial x^128 + x^7 + x^2 + x + 1
+     * using [CLMUL-WP] algorithm 5 (p. 18).
+     * Currently dd:cc holds x3:x2:x1:x0 (already shifted).
+     */
+    __m128i dx = gcm_reduce(cc);
+    __m128i xh = gcm_mix(dx);
+    cc = _mm_xor_si128(xh, dd); // x3+h1:x2+h0
+
+    /* Now byte-reverse the outputs */
+    for (size_t i = 0; i < 16; i++) {
+        c[i] = ((uint8_t *) &cc)[15 - i];
+    }
+
+    return;
+}
+
+/*
+ * Compute decryption round keys from encryption round keys
+ */
+void mbedtls_aesni_inverse_key(unsigned char *invkey,
+                               const unsigned char *fwdkey, int nr)
+{
+    __m128i *ik = (__m128i *) invkey;
+    const __m128i *fk = (const __m128i *) fwdkey + nr;
+
+    *ik = *fk;
+    for (--fk, ++ik; fk > (const __m128i *) fwdkey; --fk, ++ik) {
+        *ik = _mm_aesimc_si128(*fk);
+    }
+    *ik = *fk;
+}
+
+/*
+ * Key expansion, 128-bit case
+ */
+static __m128i aesni_set_rk_128(__m128i state, __m128i xword)
+{
+    /*
+     * Finish generating the next round key.
+     *
+     * On entry state is r3:r2:r1:r0 and xword is X:stuff:stuff:stuff
+     * with X = rot( sub( r3 ) ) ^ RCON (obtained with AESKEYGENASSIST).
+     *
+     * On exit, xword is r7:r6:r5:r4
+     * with r4 = X + r0, r5 = r4 + r1, r6 = r5 + r2, r7 = r6 + r3
+     * and this is returned, to be written to the round key buffer.
+     */
+    xword = _mm_shuffle_epi32(xword, 0xff);   // X:X:X:X
+    xword = _mm_xor_si128(xword, state);      // X+r3:X+r2:X+r1:r4
+    state = _mm_slli_si128(state, 4);         // r2:r1:r0:0
+    xword = _mm_xor_si128(xword, state);      // X+r3+r2:X+r2+r1:r5:r4
+    state = _mm_slli_si128(state, 4);         // r1:r0:0:0
+    xword = _mm_xor_si128(xword, state);      // X+r3+r2+r1:r6:r5:r4
+    state = _mm_slli_si128(state, 4);         // r0:0:0:0
+    state = _mm_xor_si128(xword, state);      // r7:r6:r5:r4
+    return state;
+}
+
+static void aesni_setkey_enc_128(unsigned char *rk_bytes,
+                                 const unsigned char *key)
+{
+    __m128i *rk = (__m128i *) rk_bytes;
+
+    memcpy(&rk[0], key, 16);
+    rk[1] = aesni_set_rk_128(rk[0], _mm_aeskeygenassist_si128(rk[0], 0x01));
+    rk[2] = aesni_set_rk_128(rk[1], _mm_aeskeygenassist_si128(rk[1], 0x02));
+    rk[3] = aesni_set_rk_128(rk[2], _mm_aeskeygenassist_si128(rk[2], 0x04));
+    rk[4] = aesni_set_rk_128(rk[3], _mm_aeskeygenassist_si128(rk[3], 0x08));
+    rk[5] = aesni_set_rk_128(rk[4], _mm_aeskeygenassist_si128(rk[4], 0x10));
+    rk[6] = aesni_set_rk_128(rk[5], _mm_aeskeygenassist_si128(rk[5], 0x20));
+    rk[7] = aesni_set_rk_128(rk[6], _mm_aeskeygenassist_si128(rk[6], 0x40));
+    rk[8] = aesni_set_rk_128(rk[7], _mm_aeskeygenassist_si128(rk[7], 0x80));
+    rk[9] = aesni_set_rk_128(rk[8], _mm_aeskeygenassist_si128(rk[8], 0x1B));
+    rk[10] = aesni_set_rk_128(rk[9], _mm_aeskeygenassist_si128(rk[9], 0x36));
+}
+
+/*
+ * Key expansion, 192-bit case
+ */
+static void aesni_set_rk_192(__m128i *state0, __m128i *state1, __m128i xword,
+                             unsigned char *rk)
+{
+    /*
+     * Finish generating the next 6 quarter-keys.
+     *
+     * On entry state0 is r3:r2:r1:r0, state1 is stuff:stuff:r5:r4
+     * and xword is stuff:stuff:X:stuff with X = rot( sub( r3 ) ) ^ RCON
+     * (obtained with AESKEYGENASSIST).
+     *
+     * On exit, state0 is r9:r8:r7:r6 and state1 is stuff:stuff:r11:r10
+     * and those are written to the round key buffer.
+     */
+    xword = _mm_shuffle_epi32(xword, 0x55);   // X:X:X:X
+    xword = _mm_xor_si128(xword, *state0);    // X+r3:X+r2:X+r1:X+r0
+    *state0 = _mm_slli_si128(*state0, 4);     // r2:r1:r0:0
+    xword = _mm_xor_si128(xword, *state0);    // X+r3+r2:X+r2+r1:X+r1+r0:X+r0
+    *state0 = _mm_slli_si128(*state0, 4);     // r1:r0:0:0
+    xword = _mm_xor_si128(xword, *state0);    // X+r3+r2+r1:X+r2+r1+r0:X+r1+r0:X+r0
+    *state0 = _mm_slli_si128(*state0, 4);     // r0:0:0:0
+    xword = _mm_xor_si128(xword, *state0);    // X+r3+r2+r1+r0:X+r2+r1+r0:X+r1+r0:X+r0
+    *state0 = xword;                          // = r9:r8:r7:r6
+
+    xword = _mm_shuffle_epi32(xword, 0xff);   // r9:r9:r9:r9
+    xword = _mm_xor_si128(xword, *state1);    // stuff:stuff:r9+r5:r9+r4
+    *state1 = _mm_slli_si128(*state1, 4);     // stuff:stuff:r4:0
+    xword = _mm_xor_si128(xword, *state1);    // stuff:stuff:r9+r5+r4:r9+r4
+    *state1 = xword;                          // = stuff:stuff:r11:r10
+
+    /* Store state0 and the low half of state1 into rk, which is conceptually
+     * an array of 24-byte elements. Since 24 is not a multiple of 16,
+     * rk is not necessarily aligned so just `*rk = *state0` doesn't work. */
+    memcpy(rk, state0, 16);
+    memcpy(rk + 16, state1, 8);
+}
+
+static void aesni_setkey_enc_192(unsigned char *rk,
+                                 const unsigned char *key)
+{
+    /* First round: use original key */
+    memcpy(rk, key, 24);
+    /* aes.c guarantees that rk is aligned on a 16-byte boundary. */
+    __m128i state0 = ((__m128i *) rk)[0];
+    __m128i state1 = _mm_loadl_epi64(((__m128i *) rk) + 1);
+
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x01), rk + 24 * 1);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x02), rk + 24 * 2);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x04), rk + 24 * 3);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x08), rk + 24 * 4);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x10), rk + 24 * 5);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x20), rk + 24 * 6);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x40), rk + 24 * 7);
+    aesni_set_rk_192(&state0, &state1, _mm_aeskeygenassist_si128(state1, 0x80), rk + 24 * 8);
+}
+
+/*
+ * Key expansion, 256-bit case
+ */
+static void aesni_set_rk_256(__m128i state0, __m128i state1, __m128i xword,
+                             __m128i *rk0, __m128i *rk1)
+{
+    /*
+     * Finish generating the next two round keys.
+     *
+     * On entry state0 is r3:r2:r1:r0, state1 is r7:r6:r5:r4 and
+     * xword is X:stuff:stuff:stuff with X = rot( sub( r7 )) ^ RCON
+     * (obtained with AESKEYGENASSIST).
+     *
+     * On exit, *rk0 is r11:r10:r9:r8 and *rk1 is r15:r14:r13:r12
+     */
+    xword = _mm_shuffle_epi32(xword, 0xff);
+    xword = _mm_xor_si128(xword, state0);
+    state0 = _mm_slli_si128(state0, 4);
+    xword = _mm_xor_si128(xword, state0);
+    state0 = _mm_slli_si128(state0, 4);
+    xword = _mm_xor_si128(xword, state0);
+    state0 = _mm_slli_si128(state0, 4);
+    state0 = _mm_xor_si128(state0, xword);
+    *rk0 = state0;
+
+    /* Set xword to stuff:Y:stuff:stuff with Y = subword( r11 )
+     * and proceed to generate next round key from there */
+    xword = _mm_aeskeygenassist_si128(state0, 0x00);
+    xword = _mm_shuffle_epi32(xword, 0xaa);
+    xword = _mm_xor_si128(xword, state1);
+    state1 = _mm_slli_si128(state1, 4);
+    xword = _mm_xor_si128(xword, state1);
+    state1 = _mm_slli_si128(state1, 4);
+    xword = _mm_xor_si128(xword, state1);
+    state1 = _mm_slli_si128(state1, 4);
+    state1 = _mm_xor_si128(state1, xword);
+    *rk1 = state1;
+}
+
+static void aesni_setkey_enc_256(unsigned char *rk_bytes,
+                                 const unsigned char *key)
+{
+    __m128i *rk = (__m128i *) rk_bytes;
+
+    memcpy(&rk[0], key, 16);
+    memcpy(&rk[1], key + 16, 16);
+
+    /*
+     * Main "loop" - Generating one more key than necessary,
+     * see definition of mbedtls_aes_context.buf
+     */
+    aesni_set_rk_256(rk[0], rk[1], _mm_aeskeygenassist_si128(rk[1], 0x01), &rk[2], &rk[3]);
+    aesni_set_rk_256(rk[2], rk[3], _mm_aeskeygenassist_si128(rk[3], 0x02), &rk[4], &rk[5]);
+    aesni_set_rk_256(rk[4], rk[5], _mm_aeskeygenassist_si128(rk[5], 0x04), &rk[6], &rk[7]);
+    aesni_set_rk_256(rk[6], rk[7], _mm_aeskeygenassist_si128(rk[7], 0x08), &rk[8], &rk[9]);
+    aesni_set_rk_256(rk[8], rk[9], _mm_aeskeygenassist_si128(rk[9], 0x10), &rk[10], &rk[11]);
+    aesni_set_rk_256(rk[10], rk[11], _mm_aeskeygenassist_si128(rk[11], 0x20), &rk[12], &rk[13]);
+    aesni_set_rk_256(rk[12], rk[13], _mm_aeskeygenassist_si128(rk[13], 0x40), &rk[14], &rk[15]);
+}
+
+#else /* MBEDTLS_AESNI_HAVE_CODE == 1 */
+
+#if defined(__has_feature)
+#if __has_feature(memory_sanitizer)
+#warning \
+    "MBEDTLS_AESNI_C is known to cause spurious error reports with some memory sanitizers as they do not understand the assembly code."
+#endif
+#endif
+
 /*
  * Binutils needs to be at least 2.19 to support AES-NI instructions.
  * Unfortunately, a lot of users have a lower version now (2014-04).
@@ -69,13 +407,13 @@
  * Operand macros are in gas order (src, dst) as opposed to Intel order
  * (dst, src) in order to blend better into the surrounding assembly code.
  */
-#define AESDEC      ".byte 0x66,0x0F,0x38,0xDE,"
-#define AESDECLAST  ".byte 0x66,0x0F,0x38,0xDF,"
-#define AESENC      ".byte 0x66,0x0F,0x38,0xDC,"
-#define AESENCLAST  ".byte 0x66,0x0F,0x38,0xDD,"
-#define AESIMC      ".byte 0x66,0x0F,0x38,0xDB,"
-#define AESKEYGENA  ".byte 0x66,0x0F,0x3A,0xDF,"
-#define PCLMULQDQ   ".byte 0x66,0x0F,0x3A,0x44,"
+#define AESDEC(regs)      ".byte 0x66,0x0F,0x38,0xDE," regs "\n\t"
+#define AESDECLAST(regs)  ".byte 0x66,0x0F,0x38,0xDF," regs "\n\t"
+#define AESENC(regs)      ".byte 0x66,0x0F,0x38,0xDC," regs "\n\t"
+#define AESENCLAST(regs)  ".byte 0x66,0x0F,0x38,0xDD," regs "\n\t"
+#define AESIMC(regs)      ".byte 0x66,0x0F,0x38,0xDB," regs "\n\t"
+#define AESKEYGENA(regs, imm)  ".byte 0x66,0x0F,0x3A,0xDF," regs "," imm "\n\t"
+#define PCLMULQDQ(regs, imm)   ".byte 0x66,0x0F,0x3A,0x44," regs "," imm "\n\t"
 
 #define xmm0_xmm0   "0xC0"
 #define xmm0_xmm1   "0xC8"
@@ -103,25 +441,25 @@
 
          "1:                        \n\t" // encryption loop
          "movdqu    (%1), %%xmm1    \n\t" // load round key
-         AESENC     xmm1_xmm0      "\n\t" // do round
-                                   "add       $16, %1         \n\t" // point to next round key
-                                   "subl      $1, %0          \n\t" // loop
-                                   "jnz       1b              \n\t"
-                                   "movdqu    (%1), %%xmm1    \n\t" // load round key
-         AESENCLAST xmm1_xmm0      "\n\t" // last round
-                                   "jmp       3f              \n\t"
+         AESENC(xmm1_xmm0)                // do round
+         "add       $16, %1         \n\t" // point to next round key
+         "subl      $1, %0          \n\t" // loop
+         "jnz       1b              \n\t"
+         "movdqu    (%1), %%xmm1    \n\t" // load round key
+         AESENCLAST(xmm1_xmm0)            // last round
+         "jmp       3f              \n\t"
 
-                                   "2:                        \n\t" // decryption loop
-                                   "movdqu    (%1), %%xmm1    \n\t"
-         AESDEC     xmm1_xmm0      "\n\t" // do round
-                                   "add       $16, %1         \n\t"
-                                   "subl      $1, %0          \n\t"
-                                   "jnz       2b              \n\t"
-                                   "movdqu    (%1), %%xmm1    \n\t" // load round key
-         AESDECLAST xmm1_xmm0      "\n\t" // last round
+         "2:                        \n\t" // decryption loop
+         "movdqu    (%1), %%xmm1    \n\t"
+         AESDEC(xmm1_xmm0)                // do round
+         "add       $16, %1         \n\t"
+         "subl      $1, %0          \n\t"
+         "jnz       2b              \n\t"
+         "movdqu    (%1), %%xmm1    \n\t" // load round key
+         AESDECLAST(xmm1_xmm0)            // last round
 
-                                   "3:                        \n\t"
-                                   "movdqu    %%xmm0, (%4)    \n\t" // export output
+         "3:                        \n\t"
+         "movdqu    %%xmm0, (%4)    \n\t" // export output
          :
          : "r" (ctx->nr), "r" (ctx->buf + ctx->rk_offset), "r" (mode), "r" (input), "r" (output)
          : "memory", "cc", "xmm0", "xmm1");
@@ -152,84 +490,84 @@
 
          /*
           * Caryless multiplication xmm2:xmm1 = xmm0 * xmm1
-          * using [CLMUL-WP] algorithm 1 (p. 13).
+          * using [CLMUL-WP] algorithm 1 (p. 12).
           */
          "movdqa %%xmm1, %%xmm2             \n\t" // copy of b1:b0
          "movdqa %%xmm1, %%xmm3             \n\t" // same
          "movdqa %%xmm1, %%xmm4             \n\t" // same
-         PCLMULQDQ xmm0_xmm1 ",0x00         \n\t" // a0*b0 = c1:c0
-         PCLMULQDQ xmm0_xmm2 ",0x11         \n\t" // a1*b1 = d1:d0
-         PCLMULQDQ xmm0_xmm3 ",0x10         \n\t" // a0*b1 = e1:e0
-         PCLMULQDQ xmm0_xmm4 ",0x01         \n\t" // a1*b0 = f1:f0
-                             "pxor %%xmm3, %%xmm4               \n\t" // e1+f1:e0+f0
-                             "movdqa %%xmm4, %%xmm3             \n\t" // same
-                             "psrldq $8, %%xmm4                 \n\t" // 0:e1+f1
-                             "pslldq $8, %%xmm3                 \n\t" // e0+f0:0
-                             "pxor %%xmm4, %%xmm2               \n\t" // d1:d0+e1+f1
-                             "pxor %%xmm3, %%xmm1               \n\t" // c1+e0+f1:c0
+         PCLMULQDQ(xmm0_xmm1, "0x00")             // a0*b0 = c1:c0
+         PCLMULQDQ(xmm0_xmm2, "0x11")             // a1*b1 = d1:d0
+         PCLMULQDQ(xmm0_xmm3, "0x10")             // a0*b1 = e1:e0
+         PCLMULQDQ(xmm0_xmm4, "0x01")             // a1*b0 = f1:f0
+         "pxor %%xmm3, %%xmm4               \n\t" // e1+f1:e0+f0
+         "movdqa %%xmm4, %%xmm3             \n\t" // same
+         "psrldq $8, %%xmm4                 \n\t" // 0:e1+f1
+         "pslldq $8, %%xmm3                 \n\t" // e0+f0:0
+         "pxor %%xmm4, %%xmm2               \n\t" // d1:d0+e1+f1
+         "pxor %%xmm3, %%xmm1               \n\t" // c1+e0+f1:c0
 
          /*
           * Now shift the result one bit to the left,
-          * taking advantage of [CLMUL-WP] eq 27 (p. 20)
+          * taking advantage of [CLMUL-WP] eq 27 (p. 18)
           */
-                             "movdqa %%xmm1, %%xmm3             \n\t" // r1:r0
-                             "movdqa %%xmm2, %%xmm4             \n\t" // r3:r2
-                             "psllq $1, %%xmm1                  \n\t" // r1<<1:r0<<1
-                             "psllq $1, %%xmm2                  \n\t" // r3<<1:r2<<1
-                             "psrlq $63, %%xmm3                 \n\t" // r1>>63:r0>>63
-                             "psrlq $63, %%xmm4                 \n\t" // r3>>63:r2>>63
-                             "movdqa %%xmm3, %%xmm5             \n\t" // r1>>63:r0>>63
-                             "pslldq $8, %%xmm3                 \n\t" // r0>>63:0
-                             "pslldq $8, %%xmm4                 \n\t" // r2>>63:0
-                             "psrldq $8, %%xmm5                 \n\t" // 0:r1>>63
-                             "por %%xmm3, %%xmm1                \n\t" // r1<<1|r0>>63:r0<<1
-                             "por %%xmm4, %%xmm2                \n\t" // r3<<1|r2>>62:r2<<1
-                             "por %%xmm5, %%xmm2                \n\t" // r3<<1|r2>>62:r2<<1|r1>>63
+         "movdqa %%xmm1, %%xmm3             \n\t" // r1:r0
+         "movdqa %%xmm2, %%xmm4             \n\t" // r3:r2
+         "psllq $1, %%xmm1                  \n\t" // r1<<1:r0<<1
+         "psllq $1, %%xmm2                  \n\t" // r3<<1:r2<<1
+         "psrlq $63, %%xmm3                 \n\t" // r1>>63:r0>>63
+         "psrlq $63, %%xmm4                 \n\t" // r3>>63:r2>>63
+         "movdqa %%xmm3, %%xmm5             \n\t" // r1>>63:r0>>63
+         "pslldq $8, %%xmm3                 \n\t" // r0>>63:0
+         "pslldq $8, %%xmm4                 \n\t" // r2>>63:0
+         "psrldq $8, %%xmm5                 \n\t" // 0:r1>>63
+         "por %%xmm3, %%xmm1                \n\t" // r1<<1|r0>>63:r0<<1
+         "por %%xmm4, %%xmm2                \n\t" // r3<<1|r2>>62:r2<<1
+         "por %%xmm5, %%xmm2                \n\t" // r3<<1|r2>>62:r2<<1|r1>>63
 
          /*
           * Now reduce modulo the GCM polynomial x^128 + x^7 + x^2 + x + 1
-          * using [CLMUL-WP] algorithm 5 (p. 20).
+          * using [CLMUL-WP] algorithm 5 (p. 18).
           * Currently xmm2:xmm1 holds x3:x2:x1:x0 (already shifted).
           */
          /* Step 2 (1) */
-                             "movdqa %%xmm1, %%xmm3             \n\t" // x1:x0
-                             "movdqa %%xmm1, %%xmm4             \n\t" // same
-                             "movdqa %%xmm1, %%xmm5             \n\t" // same
-                             "psllq $63, %%xmm3                 \n\t" // x1<<63:x0<<63 = stuff:a
-                             "psllq $62, %%xmm4                 \n\t" // x1<<62:x0<<62 = stuff:b
-                             "psllq $57, %%xmm5                 \n\t" // x1<<57:x0<<57 = stuff:c
+         "movdqa %%xmm1, %%xmm3             \n\t" // x1:x0
+         "movdqa %%xmm1, %%xmm4             \n\t" // same
+         "movdqa %%xmm1, %%xmm5             \n\t" // same
+         "psllq $63, %%xmm3                 \n\t" // x1<<63:x0<<63 = stuff:a
+         "psllq $62, %%xmm4                 \n\t" // x1<<62:x0<<62 = stuff:b
+         "psllq $57, %%xmm5                 \n\t" // x1<<57:x0<<57 = stuff:c
 
          /* Step 2 (2) */
-                             "pxor %%xmm4, %%xmm3               \n\t" // stuff:a+b
-                             "pxor %%xmm5, %%xmm3               \n\t" // stuff:a+b+c
-                             "pslldq $8, %%xmm3                 \n\t" // a+b+c:0
-                             "pxor %%xmm3, %%xmm1               \n\t" // x1+a+b+c:x0 = d:x0
+         "pxor %%xmm4, %%xmm3               \n\t" // stuff:a+b
+         "pxor %%xmm5, %%xmm3               \n\t" // stuff:a+b+c
+         "pslldq $8, %%xmm3                 \n\t" // a+b+c:0
+         "pxor %%xmm3, %%xmm1               \n\t" // x1+a+b+c:x0 = d:x0
 
          /* Steps 3 and 4 */
-                             "movdqa %%xmm1,%%xmm0              \n\t" // d:x0
-                             "movdqa %%xmm1,%%xmm4              \n\t" // same
-                             "movdqa %%xmm1,%%xmm5              \n\t" // same
-                             "psrlq $1, %%xmm0                  \n\t" // e1:x0>>1 = e1:e0'
-                             "psrlq $2, %%xmm4                  \n\t" // f1:x0>>2 = f1:f0'
-                             "psrlq $7, %%xmm5                  \n\t" // g1:x0>>7 = g1:g0'
-                             "pxor %%xmm4, %%xmm0               \n\t" // e1+f1:e0'+f0'
-                             "pxor %%xmm5, %%xmm0               \n\t" // e1+f1+g1:e0'+f0'+g0'
+         "movdqa %%xmm1,%%xmm0              \n\t" // d:x0
+         "movdqa %%xmm1,%%xmm4              \n\t" // same
+         "movdqa %%xmm1,%%xmm5              \n\t" // same
+         "psrlq $1, %%xmm0                  \n\t" // e1:x0>>1 = e1:e0'
+         "psrlq $2, %%xmm4                  \n\t" // f1:x0>>2 = f1:f0'
+         "psrlq $7, %%xmm5                  \n\t" // g1:x0>>7 = g1:g0'
+         "pxor %%xmm4, %%xmm0               \n\t" // e1+f1:e0'+f0'
+         "pxor %%xmm5, %%xmm0               \n\t" // e1+f1+g1:e0'+f0'+g0'
          // e0'+f0'+g0' is almost e0+f0+g0, ex\tcept for some missing
          // bits carried from d. Now get those\t bits back in.
-                             "movdqa %%xmm1,%%xmm3              \n\t" // d:x0
-                             "movdqa %%xmm1,%%xmm4              \n\t" // same
-                             "movdqa %%xmm1,%%xmm5              \n\t" // same
-                             "psllq $63, %%xmm3                 \n\t" // d<<63:stuff
-                             "psllq $62, %%xmm4                 \n\t" // d<<62:stuff
-                             "psllq $57, %%xmm5                 \n\t" // d<<57:stuff
-                             "pxor %%xmm4, %%xmm3               \n\t" // d<<63+d<<62:stuff
-                             "pxor %%xmm5, %%xmm3               \n\t" // missing bits of d:stuff
-                             "psrldq $8, %%xmm3                 \n\t" // 0:missing bits of d
-                             "pxor %%xmm3, %%xmm0               \n\t" // e1+f1+g1:e0+f0+g0
-                             "pxor %%xmm1, %%xmm0               \n\t" // h1:h0
-                             "pxor %%xmm2, %%xmm0               \n\t" // x3+h1:x2+h0
+         "movdqa %%xmm1,%%xmm3              \n\t" // d:x0
+         "movdqa %%xmm1,%%xmm4              \n\t" // same
+         "movdqa %%xmm1,%%xmm5              \n\t" // same
+         "psllq $63, %%xmm3                 \n\t" // d<<63:stuff
+         "psllq $62, %%xmm4                 \n\t" // d<<62:stuff
+         "psllq $57, %%xmm5                 \n\t" // d<<57:stuff
+         "pxor %%xmm4, %%xmm3               \n\t" // d<<63+d<<62:stuff
+         "pxor %%xmm5, %%xmm3               \n\t" // missing bits of d:stuff
+         "psrldq $8, %%xmm3                 \n\t" // 0:missing bits of d
+         "pxor %%xmm3, %%xmm0               \n\t" // e1+f1+g1:e0+f0+g0
+         "pxor %%xmm1, %%xmm0               \n\t" // h1:h0
+         "pxor %%xmm2, %%xmm0               \n\t" // x3+h1:x2+h0
 
-                             "movdqu %%xmm0, (%2)               \n\t" // done
+         "movdqu %%xmm0, (%2)               \n\t" // done
          :
          : "r" (aa), "r" (bb), "r" (cc)
          : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
@@ -255,8 +593,8 @@
 
     for (fk -= 16, ik += 16; fk > fwdkey; fk -= 16, ik += 16) {
         asm ("movdqu (%0), %%xmm0       \n\t"
-             AESIMC  xmm0_xmm0         "\n\t"
-                                       "movdqu %%xmm0, (%1)       \n\t"
+             AESIMC(xmm0_xmm0)
+             "movdqu %%xmm0, (%1)       \n\t"
              :
              : "r" (fk), "r" (ik)
              : "memory", "xmm0");
@@ -300,16 +638,16 @@
 
          /* Main "loop" */
          "2:                                \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x01        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x02        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x04        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x08        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x10        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x20        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x40        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x80        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x1B        \n\tcall 1b \n\t"
-         AESKEYGENA xmm0_xmm1 ",0x36        \n\tcall 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x01")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x02")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x04")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x08")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x10")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x20")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x40")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x80")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x1B")      "call 1b \n\t"
+         AESKEYGENA(xmm0_xmm1, "0x36")      "call 1b \n\t"
          :
          : "r" (rk), "r" (key)
          : "memory", "cc", "0");
@@ -358,14 +696,14 @@
          "ret                           \n\t"
 
          "2:                            \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x01    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x02    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x04    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x08    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x10    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x20    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x40    \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x80    \n\tcall 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x01")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x02")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x04")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x08")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x10")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x20")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x40")  "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x80")  "call 1b \n\t"
 
          :
          : "r" (rk), "r" (key)
@@ -408,36 +746,38 @@
 
          /* Set xmm2 to stuff:Y:stuff:stuff with Y = subword( r11 )
           * and proceed to generate next round key from there */
-         AESKEYGENA xmm0_xmm2 ",0x00        \n\t"
-                              "pshufd $0xaa, %%xmm2, %%xmm2      \n\t"
-                              "pxor %%xmm1, %%xmm2               \n\t"
-                              "pslldq $4, %%xmm1                 \n\t"
-                              "pxor %%xmm1, %%xmm2               \n\t"
-                              "pslldq $4, %%xmm1                 \n\t"
-                              "pxor %%xmm1, %%xmm2               \n\t"
-                              "pslldq $4, %%xmm1                 \n\t"
-                              "pxor %%xmm2, %%xmm1               \n\t"
-                              "add $16, %0                       \n\t"
-                              "movdqu %%xmm1, (%0)               \n\t"
-                              "ret                               \n\t"
+         AESKEYGENA(xmm0_xmm2, "0x00")
+         "pshufd $0xaa, %%xmm2, %%xmm2      \n\t"
+         "pxor %%xmm1, %%xmm2               \n\t"
+         "pslldq $4, %%xmm1                 \n\t"
+         "pxor %%xmm1, %%xmm2               \n\t"
+         "pslldq $4, %%xmm1                 \n\t"
+         "pxor %%xmm1, %%xmm2               \n\t"
+         "pslldq $4, %%xmm1                 \n\t"
+         "pxor %%xmm2, %%xmm1               \n\t"
+         "add $16, %0                       \n\t"
+         "movdqu %%xmm1, (%0)               \n\t"
+         "ret                               \n\t"
 
          /*
           * Main "loop" - Generating one more key than necessary,
           * see definition of mbedtls_aes_context.buf
           */
-                              "2:                                \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x01        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x02        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x04        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x08        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x10        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x20        \n\tcall 1b \n\t"
-         AESKEYGENA xmm1_xmm2 ",0x40        \n\tcall 1b \n\t"
+         "2:                                \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x01")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x02")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x04")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x08")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x10")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x20")      "call 1b \n\t"
+         AESKEYGENA(xmm1_xmm2, "0x40")      "call 1b \n\t"
          :
          : "r" (rk), "r" (key)
          : "memory", "cc", "0");
 }
 
+#endif  /* MBEDTLS_AESNI_HAVE_CODE */
+
 /*
  * Key expansion, wrapper
  */
@@ -455,6 +795,6 @@
     return 0;
 }
 
-#endif /* MBEDTLS_HAVE_X86_64 */
+#endif /* MBEDTLS_AESNI_HAVE_CODE */
 
 #endif /* MBEDTLS_AESNI_C */
diff --git a/library/aesni.h b/library/aesni.h
index a842fb7..51b770f 100644
--- a/library/aesni.h
+++ b/library/aesni.h
@@ -32,13 +32,46 @@
 #define MBEDTLS_AESNI_AES      0x02000000u
 #define MBEDTLS_AESNI_CLMUL    0x00000002u
 
-#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) &&  \
+/* Can we do AESNI with inline assembly?
+ * (Only implemented with gas syntax, only for 64-bit.)
+ */
+#if defined(MBEDTLS_HAVE_ASM) && defined(__GNUC__) && \
     (defined(__amd64__) || defined(__x86_64__))   &&  \
     !defined(MBEDTLS_HAVE_X86_64)
 #define MBEDTLS_HAVE_X86_64
 #endif
 
+#if defined(MBEDTLS_AESNI_C)
+
+/* Can we do AESNI with intrinsics?
+ * (Only implemented with certain compilers, only for certain targets.)
+ */
+#undef MBEDTLS_AESNI_HAVE_INTRINSICS
+#if defined(_MSC_VER)
+/* Visual Studio supports AESNI intrinsics since VS 2008 SP1. We only support
+ * VS 2013 and up for other reasons anyway, so no need to check the version. */
+#define MBEDTLS_AESNI_HAVE_INTRINSICS
+#endif
+/* GCC-like compilers: currently, we only support intrinsics if the requisite
+ * target flag is enabled when building the library (e.g. `gcc -mpclmul -msse2`
+ * or `clang -maes -mpclmul`). */
+#if defined(__GNUC__) && defined(__AES__) && defined(__PCLMUL__)
+#define MBEDTLS_AESNI_HAVE_INTRINSICS
+#endif
+
+/* Choose the implementation of AESNI, if one is available. */
+#undef MBEDTLS_AESNI_HAVE_CODE
+/* To minimize disruption when releasing the intrinsics-based implementation,
+ * favor the assembly-based implementation if it's available. We intend to
+ * revise this in a later release of Mbed TLS 3.x. In the long run, we will
+ * likely remove the assembly implementation. */
 #if defined(MBEDTLS_HAVE_X86_64)
+#define MBEDTLS_AESNI_HAVE_CODE 1 // via assembly
+#elif defined(MBEDTLS_AESNI_HAVE_INTRINSICS)
+#define MBEDTLS_AESNI_HAVE_CODE 2 // via intrinsics
+#endif
+
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
 
 #ifdef __cplusplus
 extern "C" {
@@ -127,6 +160,7 @@
 }
 #endif
 
-#endif /* MBEDTLS_HAVE_X86_64 */
+#endif /* MBEDTLS_AESNI_HAVE_CODE */
+#endif  /* MBEDTLS_AESNI_C */
 
 #endif /* MBEDTLS_AESNI_H */
diff --git a/library/alignment.h b/library/alignment.h
index f7330c9..4182348 100644
--- a/library/alignment.h
+++ b/library/alignment.h
@@ -27,8 +27,6 @@
 #include <string.h>
 #include <stdlib.h>
 
-#include "mbedtls/build_info.h"
-
 /*
  * Define MBEDTLS_EFFICIENT_UNALIGNED_ACCESS for architectures where unaligned memory
  * accesses are known to be efficient.
@@ -217,14 +215,14 @@
 static inline uint64_t mbedtls_bswap64(uint64_t x)
 {
     return
-        (x & 0x00000000000000ff) << 56 |
-        (x & 0x000000000000ff00) << 40 |
-        (x & 0x0000000000ff0000) << 24 |
-        (x & 0x00000000ff000000) <<  8 |
-        (x & 0x000000ff00000000) >>  8 |
-        (x & 0x0000ff0000000000) >> 24 |
-        (x & 0x00ff000000000000) >> 40 |
-        (x & 0xff00000000000000) >> 56;
+        (x & 0x00000000000000ffULL) << 56 |
+        (x & 0x000000000000ff00ULL) << 40 |
+        (x & 0x0000000000ff0000ULL) << 24 |
+        (x & 0x00000000ff000000ULL) <<  8 |
+        (x & 0x000000ff00000000ULL) >>  8 |
+        (x & 0x0000ff0000000000ULL) >> 24 |
+        (x & 0x00ff000000000000ULL) >> 40 |
+        (x & 0xff00000000000000ULL) >> 56;
 }
 #define MBEDTLS_BSWAP64 mbedtls_bswap64
 #endif /* !defined(MBEDTLS_BSWAP64) */
diff --git a/library/asn1write.c b/library/asn1write.c
index b9d586a..c65d937 100644
--- a/library/asn1write.c
+++ b/library/asn1write.c
@@ -195,13 +195,22 @@
                                             const char *oid, size_t oid_len,
                                             size_t par_len)
 {
+    return mbedtls_asn1_write_algorithm_identifier_ext(p, start, oid, oid_len, par_len, 1);
+}
+
+int mbedtls_asn1_write_algorithm_identifier_ext(unsigned char **p, const unsigned char *start,
+                                                const char *oid, size_t oid_len,
+                                                size_t par_len, int has_par)
+{
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len = 0;
 
-    if (par_len == 0) {
-        MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_null(p, start));
-    } else {
-        len += par_len;
+    if (has_par) {
+        if (par_len == 0) {
+            MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_null(p, start));
+        } else {
+            len += par_len;
+        }
     }
 
     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_oid(p, start, oid, oid_len));
diff --git a/library/bignum.c b/library/bignum.c
index d3a1b00..2421c1a 100644
--- a/library/bignum.c
+++ b/library/bignum.c
@@ -1136,7 +1136,8 @@
     MPI_VALIDATE_RET(A != NULL);
     MPI_VALIDATE_RET(B != NULL);
 
-    mbedtls_mpi_init(&TA); mbedtls_mpi_init(&TB);
+    mbedtls_mpi_init(&TA);
+    mbedtls_mpi_init(&TB);
 
     if (X == A) {
         MBEDTLS_MPI_CHK(mbedtls_mpi_copy(&TA, A)); A = &TA;
@@ -1166,13 +1167,7 @@
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, i + j));
     MBEDTLS_MPI_CHK(mbedtls_mpi_lset(X, 0));
 
-    for (size_t k = 0; k < j; k++) {
-        /* We know that there cannot be any carry-out since we're
-         * iterating from bottom to top. */
-        (void) mbedtls_mpi_core_mla(X->p + k, i + 1,
-                                    A->p, i,
-                                    B->p[k]);
-    }
+    mbedtls_mpi_core_mul(X->p, A->p, i, B->p, j);
 
     /* If the result is 0, we don't shortcut the operation, which reduces
      * but does not eliminate side channels leaking the zero-ness. We do
diff --git a/library/bignum_core.c b/library/bignum_core.c
index e50f043..b0ffa37 100644
--- a/library/bignum_core.c
+++ b/library/bignum_core.c
@@ -35,6 +35,23 @@
 
 size_t mbedtls_mpi_core_clz(mbedtls_mpi_uint a)
 {
+#if defined(__has_builtin)
+#if __has_builtin(__builtin_clz)
+    if (sizeof(mbedtls_mpi_uint) == sizeof(unsigned int)) {
+        return (size_t) __builtin_clz(a);
+    }
+#endif
+#if __has_builtin(__builtin_clzl)
+    if (sizeof(mbedtls_mpi_uint) == sizeof(unsigned long)) {
+        return (size_t) __builtin_clzl(a);
+    }
+#endif
+#if __has_builtin(__builtin_clzll)
+    if (sizeof(mbedtls_mpi_uint) == sizeof(unsigned long long)) {
+        return (size_t) __builtin_clzll(a);
+    }
+#endif
+#endif
     size_t j;
     mbedtls_mpi_uint mask = (mbedtls_mpi_uint) 1 << (biL - 1);
 
@@ -51,21 +68,17 @@
 
 size_t mbedtls_mpi_core_bitlen(const mbedtls_mpi_uint *A, size_t A_limbs)
 {
-    size_t i, j;
+    int i;
+    size_t j;
 
-    if (A_limbs == 0) {
-        return 0;
-    }
-
-    for (i = A_limbs - 1; i > 0; i--) {
+    for (i = ((int) A_limbs) - 1; i >= 0; i--) {
         if (A[i] != 0) {
-            break;
+            j = biL - mbedtls_mpi_core_clz(A[i]);
+            return (i * biL) + j;
         }
     }
 
-    j = biL - mbedtls_mpi_core_clz(A[i]);
-
-    return (i * biL) + j;
+    return 0;
 }
 
 /* Convert a big-endian byte array aligned to the size of mbedtls_mpi_uint
@@ -448,6 +461,17 @@
     return c;
 }
 
+void mbedtls_mpi_core_mul(mbedtls_mpi_uint *X,
+                          const mbedtls_mpi_uint *A, size_t A_limbs,
+                          const mbedtls_mpi_uint *B, size_t B_limbs)
+{
+    memset(X, 0, (A_limbs + B_limbs) * ciL);
+
+    for (size_t i = 0; i < B_limbs; i++) {
+        (void) mbedtls_mpi_core_mla(X + i, A_limbs + 1, A, A_limbs, B[i]);
+    }
+}
+
 /*
  * Fast Montgomery initialization (thanks to Tom St Denis).
  */
@@ -629,8 +653,6 @@
     return ret;
 }
 
-/* BEGIN MERGE SLOT 1 */
-
 static size_t exp_mod_get_window_size(size_t Ebits)
 {
     size_t wsize = (Ebits > 671) ? 6 : (Ebits > 239) ? 5 :
@@ -780,14 +802,6 @@
     } while (!(E_bit_index == 0 && E_limb_index == 0));
 }
 
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
-
 mbedtls_mpi_uint mbedtls_mpi_core_sub_int(mbedtls_mpi_uint *X,
                                           const mbedtls_mpi_uint *A,
                                           mbedtls_mpi_uint c,  /* doubles as carry */
@@ -838,34 +852,4 @@
     mbedtls_mpi_core_montmul(X, A, &Rinv, 1, N, AN_limbs, mm, T);
 }
 
-/* END MERGE SLOT 3 */
-
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
-
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
-
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
-
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
-
 #endif /* MBEDTLS_BIGNUM_C */
diff --git a/library/bignum_core.h b/library/bignum_core.h
index 4fb8f65..158d2b3 100644
--- a/library/bignum_core.h
+++ b/library/bignum_core.h
@@ -102,9 +102,12 @@
 
 /** Count leading zero bits in a given integer.
  *
+ * \warning     The result is undefined if \p a == 0
+ *
  * \param a     Integer to count leading zero bits.
  *
- * \return      The number of leading zero bits in \p a.
+ * \return      The number of leading zero bits in \p a, if \p a != 0.
+ *              If \p a == 0, the result is undefined.
  */
 size_t mbedtls_mpi_core_clz(mbedtls_mpi_uint a);
 
@@ -399,6 +402,26 @@
                                       mbedtls_mpi_uint b);
 
 /**
+ * \brief Perform a known-size multiplication
+ *
+ * \p X may not be aliased to any of the inputs for this function.
+ * \p A may be aliased to \p B.
+ *
+ * \param[out] X     The pointer to the (little-endian) array to receive
+ *                   the product of \p A_limbs and \p B_limbs.
+ *                   This must be of length \p A_limbs + \p B_limbs.
+ * \param[in] A      The pointer to the (little-endian) array
+ *                   representing the first factor.
+ * \param A_limbs    The number of limbs in \p A.
+ * \param[in] B      The pointer to the (little-endian) array
+ *                   representing the second factor.
+ * \param B_limbs    The number of limbs in \p B.
+ */
+void mbedtls_mpi_core_mul(mbedtls_mpi_uint *X,
+                          const mbedtls_mpi_uint *A, size_t A_limbs,
+                          const mbedtls_mpi_uint *B, size_t B_limbs);
+
+/**
  * \brief Calculate initialisation value for fast Montgomery modular
  *        multiplication
  *
@@ -549,8 +572,6 @@
                             int (*f_rng)(void *, unsigned char *, size_t),
                             void *p_rng);
 
-/* BEGIN MERGE SLOT 1 */
-
 /**
  * \brief          Returns the number of limbs of working memory required for
  *                 a call to `mbedtls_mpi_core_exp_mod()`.
@@ -604,14 +625,6 @@
                               const mbedtls_mpi_uint *RR,
                               mbedtls_mpi_uint *T);
 
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
-
 /**
  * \brief Subtract unsigned integer from known-size large unsigned integers.
  *        Return the borrow.
@@ -663,7 +676,7 @@
  *
  * \p X may be aliased to \p A, but may not otherwise overlap it.
  *
- * \p X may not alias \p N (it is in canonical form, so must be stricly less
+ * \p X may not alias \p N (it is in canonical form, so must be strictly less
  * than \p N). Nor may it alias or overlap \p rr (this is unlikely to be
  * required in practice.)
  *
@@ -702,7 +715,7 @@
  *
  * \p X may be aliased to \p A, but may not otherwise overlap it.
  *
- * \p X may not alias \p N (it is in canonical form, so must be stricly less
+ * \p X may not alias \p N (it is in canonical form, so must be strictly less
  * than \p N).
  *
  * This function is a thin wrapper around `mbedtls_mpi_core_montmul()` that is
@@ -734,34 +747,4 @@
                                     mbedtls_mpi_uint mm,
                                     mbedtls_mpi_uint *T);
 
-/* END MERGE SLOT 3 */
-
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
-
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
-
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
-
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
-
 #endif /* MBEDTLS_BIGNUM_CORE_H */
diff --git a/library/bignum_mod.c b/library/bignum_mod.c
index e986865..acf45e9 100644
--- a/library/bignum_mod.c
+++ b/library/bignum_mod.c
@@ -171,12 +171,6 @@
     return ret;
 }
 
-/* BEGIN MERGE SLOT 1 */
-
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
 int mbedtls_mpi_mod_mul(mbedtls_mpi_mod_residue *X,
                         const mbedtls_mpi_mod_residue *A,
                         const mbedtls_mpi_mod_residue *B,
@@ -202,9 +196,6 @@
     return 0;
 }
 
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
 int mbedtls_mpi_mod_sub(mbedtls_mpi_mod_residue *X,
                         const mbedtls_mpi_mod_residue *A,
                         const mbedtls_mpi_mod_residue *B,
@@ -309,13 +300,7 @@
 
     return ret;
 }
-/* END MERGE SLOT 3 */
 
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
 int mbedtls_mpi_mod_add(mbedtls_mpi_mod_residue *X,
                         const mbedtls_mpi_mod_residue *A,
                         const mbedtls_mpi_mod_residue *B,
@@ -329,9 +314,6 @@
 
     return 0;
 }
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
 
 int mbedtls_mpi_mod_random(mbedtls_mpi_mod_residue *X,
                            mbedtls_mpi_uint min,
@@ -345,9 +327,6 @@
     return mbedtls_mpi_mod_raw_random(X->p, min, N, f_rng, p_rng);
 }
 
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
 int mbedtls_mpi_mod_read(mbedtls_mpi_mod_residue *r,
                          const mbedtls_mpi_mod_modulus *N,
                          const unsigned char *buf,
@@ -383,52 +362,47 @@
                           size_t buflen,
                           mbedtls_mpi_mod_ext_rep ext_rep)
 {
-    int ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
-
     /* Do our best to check if r and m have been set up */
     if (r->limbs == 0 || N->limbs == 0) {
-        goto cleanup;
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
     }
     if (r->limbs != N->limbs) {
-        goto cleanup;
+        return MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
     }
 
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    mbedtls_mpi_uint *working_memory = r->p;
+    size_t working_memory_len = sizeof(mbedtls_mpi_uint) * r->limbs;
+
     if (N->int_rep == MBEDTLS_MPI_MOD_REP_MONTGOMERY) {
-        ret = mbedtls_mpi_mod_raw_from_mont_rep(r->p, N);
+
+        working_memory = mbedtls_calloc(r->limbs, sizeof(mbedtls_mpi_uint));
+
+        if (working_memory == NULL) {
+            ret = MBEDTLS_ERR_MPI_ALLOC_FAILED;
+            goto cleanup;
+        }
+
+        memcpy(working_memory, r->p, working_memory_len);
+
+        ret = mbedtls_mpi_mod_raw_from_mont_rep(working_memory, N);
         if (ret != 0) {
             goto cleanup;
         }
     }
 
-    ret = mbedtls_mpi_mod_raw_write(r->p, N, buf, buflen, ext_rep);
-
-    if (N->int_rep == MBEDTLS_MPI_MOD_REP_MONTGOMERY) {
-        /* If this fails, the value of r is corrupted and we want to return
-         * this error (as opposed to the error code from the write above) to
-         * let the caller know. If it succeeds, we want to return the error
-         * code from write above. */
-        int conv_ret = mbedtls_mpi_mod_raw_to_mont_rep(r->p, N);
-        if (ret == 0) {
-            ret = conv_ret;
-        }
-    }
+    ret = mbedtls_mpi_mod_raw_write(working_memory, N, buf, buflen, ext_rep);
 
 cleanup:
 
+    if (N->int_rep == MBEDTLS_MPI_MOD_REP_MONTGOMERY &&
+        working_memory != NULL) {
+
+        mbedtls_platform_zeroize(working_memory, working_memory_len);
+        mbedtls_free(working_memory);
+    }
+
     return ret;
 }
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
 
 #endif /* MBEDTLS_BIGNUM_C */
diff --git a/library/bignum_mod.h b/library/bignum_mod.h
index d4c1d5d..db177ed 100644
--- a/library/bignum_mod.h
+++ b/library/bignum_mod.h
@@ -220,12 +220,6 @@
  */
 void mbedtls_mpi_mod_modulus_free(mbedtls_mpi_mod_modulus *N);
 
-/* BEGIN MERGE SLOT 1 */
-
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
 /** \brief  Multiply two residues, returning the residue modulo the specified
  *          modulus.
  *
@@ -260,9 +254,6 @@
                         const mbedtls_mpi_mod_residue *B,
                         const mbedtls_mpi_mod_modulus *N);
 
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
 /**
  * \brief Perform a fixed-size modular subtraction.
  *
@@ -321,13 +312,6 @@
 int mbedtls_mpi_mod_inv(mbedtls_mpi_mod_residue *X,
                         const mbedtls_mpi_mod_residue *A,
                         const mbedtls_mpi_mod_modulus *N);
-/* END MERGE SLOT 3 */
-
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
 /**
  * \brief Perform a fixed-size modular addition.
  *
@@ -358,9 +342,6 @@
                         const mbedtls_mpi_mod_residue *A,
                         const mbedtls_mpi_mod_residue *B,
                         const mbedtls_mpi_mod_modulus *N);
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
 
 /** Generate a random number uniformly in a range.
  *
@@ -395,9 +376,6 @@
                            int (*f_rng)(void *, unsigned char *, size_t),
                            void *p_rng);
 
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
 /** Read a residue from a byte buffer.
  *
  * The residue will be automatically converted to the internal representation
@@ -464,18 +442,5 @@
                           unsigned char *buf,
                           size_t buflen,
                           mbedtls_mpi_mod_ext_rep ext_rep);
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
 
 #endif /* MBEDTLS_BIGNUM_MOD_H */
diff --git a/library/bignum_mod_raw.c b/library/bignum_mod_raw.c
index bf0cb25..7919211 100644
--- a/library/bignum_mod_raw.c
+++ b/library/bignum_mod_raw.c
@@ -104,12 +104,6 @@
     }
 }
 
-/* BEGIN MERGE SLOT 1 */
-
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
 void mbedtls_mpi_mod_raw_sub(mbedtls_mpi_uint *X,
                              const mbedtls_mpi_uint *A,
                              const mbedtls_mpi_uint *B,
@@ -143,10 +137,6 @@
                              N->rep.mont.mm, T);
 }
 
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
-
 size_t mbedtls_mpi_mod_raw_inv_prime_working_limbs(size_t AN_limbs)
 {
     /* mbedtls_mpi_mod_raw_inv_prime() needs a temporary for the exponent,
@@ -178,13 +168,6 @@
                              RR, T + AN_limbs);
 }
 
-/* END MERGE SLOT 3 */
-
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
 void mbedtls_mpi_mod_raw_add(mbedtls_mpi_uint *X,
                              const mbedtls_mpi_uint *A,
                              const mbedtls_mpi_uint *B,
@@ -195,9 +178,6 @@
     borrow = mbedtls_mpi_core_sub(X, X, N->p, N->limbs);
     (void) mbedtls_mpi_core_add_if(X, N->p, N->limbs, (unsigned) (carry ^ borrow));
 }
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
 
 int mbedtls_mpi_mod_raw_canonical_to_modulus_rep(
     mbedtls_mpi_uint *X,
@@ -240,9 +220,6 @@
     return mbedtls_mpi_mod_raw_canonical_to_modulus_rep(X, N);
 }
 
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
 int mbedtls_mpi_mod_raw_to_mont_rep(mbedtls_mpi_uint *X,
                                     const mbedtls_mpi_mod_modulus *N)
 {
@@ -289,18 +266,5 @@
     mbedtls_mpi_uint borrow = mbedtls_mpi_core_sub(X, X, N->p, N->limbs);
     (void) mbedtls_mpi_core_add_if(X, N->p, N->limbs, (unsigned) borrow);
 }
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
 
 #endif /* MBEDTLS_BIGNUM_C */
diff --git a/library/bignum_mod_raw.h b/library/bignum_mod_raw.h
index a32500f..c5ff937 100644
--- a/library/bignum_mod_raw.h
+++ b/library/bignum_mod_raw.h
@@ -187,12 +187,6 @@
                               size_t output_length,
                               mbedtls_mpi_mod_ext_rep ext_rep);
 
-/* BEGIN MERGE SLOT 1 */
-
-/* END MERGE SLOT 1 */
-
-/* BEGIN MERGE SLOT 2 */
-
 /** \brief  Subtract two MPIs, returning the residue modulo the specified
  *          modulus.
  *
@@ -250,10 +244,6 @@
                              const mbedtls_mpi_mod_modulus *N,
                              mbedtls_mpi_uint *T);
 
-/* END MERGE SLOT 2 */
-
-/* BEGIN MERGE SLOT 3 */
-
 /**
  * \brief          Returns the number of limbs of working memory required for
  *                 a call to `mbedtls_mpi_mod_raw_inv_prime()`.
@@ -303,13 +293,6 @@
                                    const mbedtls_mpi_uint *RR,
                                    mbedtls_mpi_uint *T);
 
-/* END MERGE SLOT 3 */
-
-/* BEGIN MERGE SLOT 4 */
-
-/* END MERGE SLOT 4 */
-
-/* BEGIN MERGE SLOT 5 */
 /**
  * \brief Perform a known-size modular addition.
  *
@@ -332,9 +315,6 @@
                              const mbedtls_mpi_uint *A,
                              const mbedtls_mpi_uint *B,
                              const mbedtls_mpi_mod_modulus *N);
-/* END MERGE SLOT 5 */
-
-/* BEGIN MERGE SLOT 6 */
 
 /** Convert an MPI from canonical representation (little-endian limb array)
  * to the representation associated with the modulus.
@@ -404,9 +384,6 @@
                                int (*f_rng)(void *, unsigned char *, size_t),
                                void *p_rng);
 
-/* END MERGE SLOT 6 */
-
-/* BEGIN MERGE SLOT 7 */
 /** Convert an MPI into Montgomery form.
  *
  * \param X      The address of the MPI.
@@ -447,18 +424,5 @@
 void mbedtls_mpi_mod_raw_neg(mbedtls_mpi_uint *X,
                              const mbedtls_mpi_uint *A,
                              const mbedtls_mpi_mod_modulus *N);
-/* END MERGE SLOT 7 */
-
-/* BEGIN MERGE SLOT 8 */
-
-/* END MERGE SLOT 8 */
-
-/* BEGIN MERGE SLOT 9 */
-
-/* END MERGE SLOT 9 */
-
-/* BEGIN MERGE SLOT 10 */
-
-/* END MERGE SLOT 10 */
 
 #endif /* MBEDTLS_BIGNUM_MOD_RAW_H */
diff --git a/library/common.h b/library/common.h
index 46af79f..eb159a7 100644
--- a/library/common.h
+++ b/library/common.h
@@ -26,6 +26,7 @@
 #include "mbedtls/build_info.h"
 #include "alignment.h"
 
+#include <assert.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stddef.h>
@@ -149,4 +150,18 @@
 #endif
 /* *INDENT-ON* */
 
+/* Always provide a static assert macro, so it can be used unconditionally.
+ * It will expand to nothing on some systems.
+ * Can be used outside functions (but don't add a trailing ';' in that case:
+ * the semicolon is included here to avoid triggering -Wextra-semi when
+ * MBEDTLS_STATIC_ASSERT() expands to nothing).
+ * Can't use the C11-style `defined(static_assert)` on FreeBSD, since it
+ * defines static_assert even with -std=c99, but then complains about it.
+ */
+#if defined(static_assert) && !defined(__FreeBSD__)
+#define MBEDTLS_STATIC_ASSERT(expr, msg)    static_assert(expr, msg);
+#else
+#define MBEDTLS_STATIC_ASSERT(expr, msg)
+#endif
+
 #endif /* MBEDTLS_LIBRARY_COMMON_H */
diff --git a/library/constant_time.c b/library/constant_time.c
index b3bf874..c823b78 100644
--- a/library/constant_time.c
+++ b/library/constant_time.c
@@ -46,6 +46,11 @@
 #endif
 
 #include <string.h>
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,    \
+                                                           psa_to_ssl_errors,              \
+                                                           psa_generic_status_to_mbedtls)
+#endif
 
 /*
  * Define MBEDTLS_EFFICIENT_UNALIGNED_VOLATILE_ACCESS where assembly is present to
@@ -311,40 +316,6 @@
 
 #if defined(MBEDTLS_BIGNUM_C)
 
-/** Select between two sign values without branches.
- *
- * This is functionally equivalent to `condition ? if1 : if0` but uses only bit
- * operations in order to avoid branches.
- *
- * \note if1 and if0 must be either 1 or -1, otherwise the result
- *       is undefined.
- *
- * \param condition     Condition to test; must be either 0 or 1.
- * \param if1           The first sign; must be either +1 or -1.
- * \param if0           The second sign; must be either +1 or -1.
- *
- * \return  \c if1 if \p condition is nonzero, otherwise \c if0.
- * */
-static int mbedtls_ct_cond_select_sign(unsigned char condition,
-                                       int if1,
-                                       int if0)
-{
-    /* In order to avoid questions about what we can reasonably assume about
-     * the representations of signed integers, move everything to unsigned
-     * by taking advantage of the fact that if1 and if0 are either +1 or -1. */
-    unsigned uif1 = if1 + 1;
-    unsigned uif0 = if0 + 1;
-
-    /* condition was 0 or 1, mask is 0 or 2 as are uif1 and uif0 */
-    const unsigned mask = condition << 1;
-
-    /* select uif1 or uif0 */
-    unsigned ur = (uif0 & ~mask) | (uif1 & mask);
-
-    /* ur is now 0 or 2, convert back to -1 or +1 */
-    return (int) ur - 1;
-}
-
 void mbedtls_ct_mpi_uint_cond_assign(size_t n,
                                      mbedtls_mpi_uint *dest,
                                      const mbedtls_mpi_uint *src,
@@ -620,7 +591,7 @@
 
     psa_hash_abort(&operation);
     psa_hash_abort(&aux_operation);
-    return psa_ssl_status_to_mbedtls(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 #undef MAX_HASH_BLOCK_LENGTH
@@ -749,7 +720,7 @@
 
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(X, Y->n));
 
-    X->s = mbedtls_ct_cond_select_sign(assign, Y->s, X->s);
+    X->s = (int) mbedtls_ct_uint_if(assign, Y->s, X->s);
 
     mbedtls_mpi_core_cond_assign(X->p, Y->p, Y->n, assign);
 
@@ -784,8 +755,8 @@
     MBEDTLS_MPI_CHK(mbedtls_mpi_grow(Y, X->n));
 
     s = X->s;
-    X->s = mbedtls_ct_cond_select_sign(swap, Y->s, X->s);
-    Y->s = mbedtls_ct_cond_select_sign(swap, s, Y->s);
+    X->s = (int) mbedtls_ct_uint_if(swap, Y->s, X->s);
+    Y->s = (int) mbedtls_ct_uint_if(swap, s, Y->s);
 
     mbedtls_mpi_core_cond_swap(X->p, Y->p, X->n, swap);
 
diff --git a/library/debug.c b/library/debug.c
index 12559af..3969616 100644
--- a/library/debug.c
+++ b/library/debug.c
@@ -172,7 +172,7 @@
     }
 }
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 void mbedtls_debug_print_ecp(const mbedtls_ssl_context *ssl, int level,
                              const char *file, int line,
                              const char *text, const mbedtls_ecp_point *X)
@@ -192,7 +192,7 @@
     mbedtls_snprintf(str, sizeof(str), "%s(Y)", text);
     mbedtls_debug_print_mpi(ssl, level, file, line, str, &X->Y);
 }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_BIGNUM_C)
 void mbedtls_debug_print_mpi(const mbedtls_ssl_context *ssl, int level,
@@ -273,7 +273,7 @@
         if (items[i].type == MBEDTLS_PK_DEBUG_MPI) {
             mbedtls_debug_print_mpi(ssl, level, file, line, name, items[i].value);
         } else
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
         if (items[i].type == MBEDTLS_PK_DEBUG_ECP) {
             mbedtls_debug_print_ecp(ssl, level, file, line, name, items[i].value);
         } else
diff --git a/library/ecdh.c b/library/ecdh.c
index b529af5..58ef881 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -20,7 +20,7 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  * RFC 4492
  */
 
diff --git a/library/ecdsa.c b/library/ecdsa.c
index eb3c303..1faec16 100644
--- a/library/ecdsa.c
+++ b/library/ecdsa.c
@@ -20,7 +20,7 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  */
 
 #include "common.h"
@@ -234,6 +234,19 @@
 }
 #endif /* ECDSA_DETERMINISTIC || !ECDSA_SIGN_ALT || !ECDSA_VERIFY_ALT */
 
+int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid)
+{
+    switch (gid) {
+#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
+        case MBEDTLS_ECP_DP_CURVE25519: return 0;
+#endif
+#ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
+        case MBEDTLS_ECP_DP_CURVE448: return 0;
+#endif
+        default: return 1;
+    }
+}
+
 #if !defined(MBEDTLS_ECDSA_SIGN_ALT)
 /*
  * Compute ECDSA signature of a hashed message (SEC1 4.1.3)
@@ -373,19 +386,6 @@
     return ret;
 }
 
-int mbedtls_ecdsa_can_do(mbedtls_ecp_group_id gid)
-{
-    switch (gid) {
-#ifdef MBEDTLS_ECP_DP_CURVE25519_ENABLED
-        case MBEDTLS_ECP_DP_CURVE25519: return 0;
-#endif
-#ifdef MBEDTLS_ECP_DP_CURVE448_ENABLED
-        case MBEDTLS_ECP_DP_CURVE448: return 0;
-#endif
-        default: return 1;
-    }
-}
-
 /*
  * Compute ECDSA signature of a hashed message
  */
diff --git a/library/ecjpake.c b/library/ecjpake.c
index 1a683d5..7d452bc 100644
--- a/library/ecjpake.c
+++ b/library/ecjpake.c
@@ -30,13 +30,6 @@
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
 
-/* We use MD first if it's available (for compatibility reasons)
- * and "fall back" to PSA otherwise (which needs psa_crypto_init()). */
-#if !defined(MBEDTLS_MD_C)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif /* !MBEDTLS_MD_C */
-
 #include "hash_info.h"
 
 #include <string.h>
@@ -61,19 +54,8 @@
                                         const unsigned char *input, size_t ilen,
                                         unsigned char *output)
 {
-#if defined(MBEDTLS_MD_C)
     return mbedtls_md(mbedtls_md_info_from_type(md_type),
                       input, ilen, output);
-#else
-    psa_algorithm_t alg = mbedtls_psa_translate_md(md_type);
-    psa_status_t status;
-    size_t out_size = PSA_HASH_LENGTH(alg);
-    size_t out_len;
-
-    status = psa_hash_compute(alg, input, ilen, output, out_size, &out_len);
-
-    return mbedtls_md_error_from_psa(status);
-#endif /* !MBEDTLS_MD_C */
 }
 
 /*
@@ -137,15 +119,9 @@
 
     ctx->role = role;
 
-#if defined(MBEDTLS_MD_C)
     if ((mbedtls_md_info_from_type(hash)) == NULL) {
         return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
     }
-#else
-    if (mbedtls_psa_translate_md(hash) == MBEDTLS_MD_NONE) {
-        return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
-    }
-#endif
 
     ctx->md_type = hash;
 
@@ -865,7 +841,7 @@
 #include "mbedtls/platform.h"
 
 #if !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
-    !defined(MBEDTLS_SHA256_C)
+    !defined(MBEDTLS_MD_CAN_SHA256)
 int mbedtls_ecjpake_self_test(int verbose)
 {
     (void) verbose;
@@ -1247,7 +1223,7 @@
 
 #undef TEST_ASSERT
 
-#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED && MBEDTLS_SHA256_C */
+#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED && MBEDTLS_MD_CAN_SHA256 */
 
 #endif /* MBEDTLS_SELF_TEST */
 
diff --git a/library/ecp.c b/library/ecp.c
index 08fbe86..086acb3 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -20,13 +20,15 @@
 /*
  * References:
  *
- * SEC1 http://www.secg.org/index.php?action=secg,docs_secg
+ * SEC1 https://www.secg.org/sec1-v2.pdf
  * GECC = Guide to Elliptic Curve Cryptography - Hankerson, Menezes, Vanstone
  * FIPS 186-3 http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf
  * RFC 4492 for the related TLS structures and constants
+ * - https://www.rfc-editor.org/rfc/rfc4492
  * RFC 7748 for the Curve448 and Curve25519 curve definitions
+ * - https://www.rfc-editor.org/rfc/rfc7748
  *
- * [Curve25519] http://cr.yp.to/ecdh/curve25519-20060209.pdf
+ * [Curve25519] https://cr.yp.to/ecdh/curve25519-20060209.pdf
  *
  * [2] CORON, Jean-S'ebastien. Resistance against differential power analysis
  *     for elliptic curve cryptosystems. In : Cryptographic Hardware and
@@ -70,7 +72,7 @@
 #if defined(MBEDTLS_ECP_INTERNAL_ALT)
 #endif
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 
 #include "mbedtls/ecp.h"
 #include "mbedtls/threading.h"
@@ -93,7 +95,10 @@
  * Counts of point addition and doubling, and field multiplications.
  * Used to test resistance of point multiplication to simple timing attacks.
  */
-static unsigned long add_count, dbl_count, mul_count;
+#if defined(MBEDTLS_ECP_C)
+static unsigned long add_count, dbl_count;
+#endif /* MBEDTLS_ECP_C */
+static unsigned long mul_count;
 #endif
 
 #if defined(MBEDTLS_ECP_RESTARTABLE)
@@ -320,6 +325,7 @@
 
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
+#if defined(MBEDTLS_ECP_C)
 static void mpi_init_many(mbedtls_mpi *arr, size_t size)
 {
     while (size--) {
@@ -333,6 +339,7 @@
         mbedtls_mpi_free(arr++);
     }
 }
+#endif /* MBEDTLS_ECP_C */
 
 /*
  * List of supported curves:
@@ -1306,7 +1313,10 @@
     mbedtls_mpi_free(&exp);
     return ret;
 }
+#endif /* MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
 
+#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED)
 /*
  * For curves in short Weierstrass form, we do all the internal operations in
  * Jacobian coordinates.
@@ -2723,6 +2733,7 @@
 {
     return mbedtls_ecp_mul_restartable(grp, R, m, P, f_rng, p_rng, NULL);
 }
+#endif /* MBEDTLS_ECP_C */
 
 #if defined(MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED)
 /*
@@ -2763,6 +2774,7 @@
 }
 #endif /* MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
 
+#if defined(MBEDTLS_ECP_C)
 #if defined(MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED)
 /*
  * R = m * P with shortcuts for m == 0, m == 1 and m == -1
@@ -2914,6 +2926,7 @@
     return mbedtls_ecp_muladd_restartable(grp, R, m, P, n, Q, NULL);
 }
 #endif /* MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED */
+#endif /* MBEDTLS_ECP_C */
 
 #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
 #if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
@@ -3159,6 +3172,7 @@
     return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
 }
 
+#if defined(MBEDTLS_ECP_C)
 /*
  * Generate a keypair with configurable base point
  */
@@ -3200,6 +3214,7 @@
 
     return mbedtls_ecp_gen_keypair(&key->grp, &key->d, &key->Q, f_rng, p_rng);
 }
+#endif /* MBEDTLS_ECP_C */
 
 #define ECP_CURVE25519_KEY_SIZE 32
 #define ECP_CURVE448_KEY_SIZE   56
@@ -3316,7 +3331,7 @@
     return ret;
 }
 
-
+#if defined(MBEDTLS_ECP_C)
 /*
  * Check a public-private key pair
  */
@@ -3357,6 +3372,7 @@
 
     return ret;
 }
+#endif /* MBEDTLS_ECP_C */
 
 /*
  * Export generic key-pair parameters.
@@ -3383,6 +3399,7 @@
 
 #if defined(MBEDTLS_SELF_TEST)
 
+#if defined(MBEDTLS_ECP_C)
 /*
  * PRNG for test - !!!INSECURE NEVER USE IN PRODUCTION!!!
  *
@@ -3490,12 +3507,14 @@
     }
     return ret;
 }
+#endif /* MBEDTLS_ECP_C */
 
 /*
  * Checkup routine
  */
 int mbedtls_ecp_self_test(int verbose)
 {
+#if defined(MBEDTLS_ECP_C)
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ecp_group grp;
     mbedtls_ecp_point R, P;
@@ -3609,10 +3628,14 @@
     }
 
     return ret;
+#else /* MBEDTLS_ECP_C */
+    (void) verbose;
+    return 0;
+#endif /* MBEDTLS_ECP_C */
 }
 
 #endif /* MBEDTLS_SELF_TEST */
 
 #endif /* !MBEDTLS_ECP_ALT */
 
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index b352e76..f0a3e6e 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -19,7 +19,7 @@
 
 #include "common.h"
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 
 #include "mbedtls/ecp.h"
 #include "mbedtls/platform_util.h"
@@ -4575,12 +4575,18 @@
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
 static int ecp_mod_p224(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224_raw(mbedtls_mpi_uint *X, size_t X_limbs);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
 static int ecp_mod_p256(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
 static int ecp_mod_p384(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p384_raw(mbedtls_mpi_uint *X, size_t X_limbs);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
 static int ecp_mod_p521(mbedtls_mpi *);
@@ -4599,15 +4605,23 @@
 #endif
 #if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
 static int ecp_mod_p448(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p448(mbedtls_mpi *);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
 static int ecp_mod_p192k1(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p192k1(mbedtls_mpi *);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
 static int ecp_mod_p224k1(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224k1(mbedtls_mpi *);
 #endif
 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
 static int ecp_mod_p256k1(mbedtls_mpi *);
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256k1(mbedtls_mpi *);
 #endif
 
 #if defined(ECP_LOAD_GROUP)
@@ -4891,7 +4905,7 @@
 #define A(i)        Np + (i) * WIDTH
 #define ADD(i)      add64(p, A(i), &c)
 #define NEXT        p += WIDTH; carry64(p, &c)
-#define LAST        p += WIDTH; *p = c; while (++p < end) *p = 0
+#define LAST        p += WIDTH; do *p = 0; while (++p < end)
 #define RESET       last_carry[0] = c; c = 0; p = Np
 #define ADD_LAST    add64(p, last_carry, &c)
 
@@ -4930,11 +4944,21 @@
 
     /* Use the reduction for the carry as well:
      * 2^192 * last_carry = 2^64 * last_carry + last_carry mod P192
+     * It can generate a carry. */
+    ADD_LAST; NEXT;                 // A0 += last_carry
+    ADD_LAST; NEXT;                 // A1 += last_carry
+                                    // A2 += carry
+
+    RESET;
+
+    /* Use the reduction for the carry as well:
+     * 2^192 * last_carry = 2^64 * last_carry + last_carry mod P192
      */
     ADD_LAST; NEXT;                 // A0 += last_carry
     ADD_LAST; NEXT;                 // A1 += last_carry
+                                    // A2 += carry
 
-    LAST;                           // A2 += carry
+    LAST;
 
     return 0;
 }
@@ -4951,6 +4975,7 @@
 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) ||   \
     defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) ||   \
     defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
+
 /*
  * The reader is advised to first understand ecp_mod_p192() since the same
  * general structure is used here, but with additional complications:
@@ -4971,162 +4996,209 @@
 
 #if defined(MBEDTLS_HAVE_INT32)  /* 32 bit */
 
-#define MAX32       N->n
-#define A(j)      N->p[j]
-#define STORE32     N->p[i] = cur;
+#define MAX32       X_limbs
+#define A(j)        X[j]
+#define STORE32     X[i] = (mbedtls_mpi_uint) cur;
+#define STORE0      X[i] = 0;
 
-#else                               /* 64-bit */
+#else /* 64 bit */
 
-#define MAX32       N->n * 2
-#define A(j) (j) % 2 ? (uint32_t) (N->p[(j)/2] >> 32) : \
-    (uint32_t) (N->p[(j)/2])
-#define STORE32                                   \
-    if (i % 2) {                                 \
-        N->p[i/2] &= 0x00000000FFFFFFFF;          \
-        N->p[i/2] |= ((mbedtls_mpi_uint) cur) << 32;        \
-    } else {                                      \
-        N->p[i/2] &= 0xFFFFFFFF00000000;          \
-        N->p[i/2] |= (mbedtls_mpi_uint) cur;                \
+#define MAX32   X_limbs * 2
+#define A(j)                                                \
+    (j) % 2 ?                                               \
+    (uint32_t) (X[(j) / 2] >> 32) :                         \
+    (uint32_t) (X[(j) / 2])
+#define STORE32                                             \
+    if (i % 2) {                                            \
+        X[i/2] &= 0x00000000FFFFFFFF;                       \
+        X[i/2] |= (uint64_t) (cur) << 32;                   \
+    } else {                                                \
+        X[i/2] &= 0xFFFFFFFF00000000;                       \
+        X[i/2] |= (uint32_t) cur;                           \
     }
 
-#endif /* sizeof( mbedtls_mpi_uint ) */
+#define STORE0                                              \
+    if (i % 2) {                                            \
+        X[i/2] &= 0x00000000FFFFFFFF;                       \
+    } else {                                                \
+        X[i/2] &= 0xFFFFFFFF00000000;                       \
+    }
 
-/*
- * Helpers for addition and subtraction of chunks, with signed carry.
- */
-static inline void add32(uint32_t *dst, uint32_t src, signed char *carry)
+#endif
+
+static inline int8_t extract_carry(int64_t cur)
 {
-    *dst += src;
-    *carry += (*dst < src);
+    return (int8_t) (cur >> 32);
 }
 
-static inline void sub32(uint32_t *dst, uint32_t src, signed char *carry)
-{
-    *carry -= (*dst < src);
-    *dst -= src;
-}
+#define ADD(j)    cur += A(j)
+#define SUB(j)    cur -= A(j)
 
-#define ADD(j)    add32(&cur, A(j), &c);
-#define SUB(j)    sub32(&cur, A(j), &c);
+#define ADD_CARRY(cc) cur += (cc)
+#define SUB_CARRY(cc) cur -= (cc)
+
+#define ADD_LAST ADD_CARRY(last_c)
+#define SUB_LAST SUB_CARRY(last_c)
 
 /*
  * Helpers for the main 'loop'
  */
-#define INIT(b)                                                       \
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;                    \
-    signed char c = 0, cc;                                              \
-    uint32_t cur;                                                       \
-    size_t i = 0, bits = (b);                                           \
-    /* N is the size of the product of two b-bit numbers, plus one */   \
-    /* limb for fix_negative */                                         \
-    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, (b) * 2 / biL + 1));      \
+#define INIT(b)                                         \
+    int8_t c = 0, last_c;                               \
+    int64_t cur;                                        \
+    size_t i = 0;                                       \
     LOAD32;
 
-#define NEXT                    \
-    STORE32; i++; LOAD32;       \
-    cc = c; c = 0;              \
-    if (cc < 0)                \
-    sub32(&cur, -cc, &c); \
-    else                        \
-    add32(&cur, cc, &c);  \
+#define NEXT                                            \
+    c = extract_carry(cur);                             \
+    STORE32; i++; LOAD32;                               \
+    ADD_CARRY(c);
 
-#define LAST                                    \
-    STORE32; i++;                               \
-    cur = c > 0 ? c : 0; STORE32;               \
-    cur = 0; while (++i < MAX32) { STORE32; }  \
-    if (c < 0) mbedtls_ecp_fix_negative(N, c, bits);
+#define RESET                                           \
+    c = extract_carry(cur);                             \
+    last_c = c;                                         \
+    STORE32; i = 0; LOAD32;                             \
+    c = 0;                                              \
 
-/*
- * If the result is negative, we get it in the form
- * c * 2^bits + N, with c negative and N positive shorter than 'bits'
- */
-MBEDTLS_STATIC_TESTABLE
-void mbedtls_ecp_fix_negative(mbedtls_mpi *N, signed char c, size_t bits)
-{
-    size_t i;
-
-    /* Set N := 2^bits - 1 - N. We know that 0 <= N < 2^bits, so
-     * set the absolute value to 0xfff...fff - N. There is no carry
-     * since we're subtracting from all-bits-one.  */
-    for (i = 0; i <= bits / 8 / sizeof(mbedtls_mpi_uint); i++) {
-        N->p[i] = ~(mbedtls_mpi_uint) 0 - N->p[i];
-    }
-    /* Add 1, taking care of the carry. */
-    i = 0;
-    do {
-        ++N->p[i];
-    } while (N->p[i++] == 0 && i <= bits / 8 / sizeof(mbedtls_mpi_uint));
-    /* Invert the sign.
-     * Now N = N0 - 2^bits where N0 is the initial value of N. */
-    N->s = -1;
-
-    /* Add |c| * 2^bits to the absolute value. Since c and N are
-     * negative, this adds c * 2^bits. */
-    mbedtls_mpi_uint msw = (mbedtls_mpi_uint) -c;
-#if defined(MBEDTLS_HAVE_INT64)
-    if (bits == 224) {
-        msw <<= 32;
-    }
-#endif
-    N->p[bits / 8 / sizeof(mbedtls_mpi_uint)] += msw;
-}
+#define LAST                                            \
+    c = extract_carry(cur);                             \
+    STORE32; i++;                                       \
+    if (c != 0)                                         \
+    return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;              \
+    while (i < MAX32) { STORE0; i++; }
 
 #if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
+
 /*
  * Fast quasi-reduction modulo p224 (FIPS 186-3 D.2.2)
  */
 static int ecp_mod_p224(mbedtls_mpi *N)
 {
-    INIT(224);
-
-    SUB(7); SUB(11);               NEXT;      // A0 += -A7 - A11
-    SUB(8); SUB(12);               NEXT;      // A1 += -A8 - A12
-    SUB(9); SUB(13);               NEXT;      // A2 += -A9 - A13
-    SUB(10); ADD(7); ADD(11);    NEXT;        // A3 += -A10 + A7 + A11
-    SUB(11); ADD(8); ADD(12);    NEXT;        // A4 += -A11 + A8 + A12
-    SUB(12); ADD(9); ADD(13);    NEXT;        // A5 += -A12 + A9 + A13
-    SUB(13); ADD(10);               LAST;     // A6 += -A13 + A10
-
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t expected_width =  2 * 224 / biL;
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
+    ret = mbedtls_ecp_mod_p224_raw(N->p, expected_width);
 cleanup:
     return ret;
 }
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224_raw(mbedtls_mpi_uint *X, size_t X_limbs)
+{
+    if (X_limbs != 2 * 224 / biL) {
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    }
+
+    INIT(224);
+
+    SUB(7);  SUB(11);           NEXT;   // A0 += -A7  - A11
+    SUB(8);  SUB(12);           NEXT;   // A1 += -A8  - A12
+    SUB(9);  SUB(13);           NEXT;   // A2 += -A9  - A13
+    SUB(10); ADD(7);  ADD(11);  NEXT;   // A3 += -A10 + A7 + A11
+    SUB(11); ADD(8);  ADD(12);  NEXT;   // A4 += -A11 + A8 + A12
+    SUB(12); ADD(9);  ADD(13);  NEXT;   // A5 += -A12 + A9 + A13
+    SUB(13); ADD(10);                   // A6 += -A13 + A10
+
+    RESET;
+
+    /* Use 2^224 = P + 2^96 - 1 to modulo reduce the final carry */
+    SUB_LAST; NEXT;                     // A0 -= last_c
+    ;         NEXT;                     // A1
+    ;         NEXT;                     // A2
+    ADD_LAST; NEXT;                     // A3 += last_c
+    ;         NEXT;                     // A4
+    ;         NEXT;                     // A5
+                                        // A6
+
+    /* The carry reduction cannot generate a carry
+     * (see commit 73e8553 for details)*/
+
+    LAST;
+
+    return 0;
+}
+
 #endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
+
 /*
  * Fast quasi-reduction modulo p256 (FIPS 186-3 D.2.3)
  */
 static int ecp_mod_p256(mbedtls_mpi *N)
 {
-    INIT(256);
-
-    ADD(8); ADD(9);
-    SUB(11); SUB(12); SUB(13); SUB(14);             NEXT;         // A0
-
-    ADD(9); ADD(10);
-    SUB(12); SUB(13); SUB(14); SUB(15);             NEXT;         // A1
-
-    ADD(10); ADD(11);
-    SUB(13); SUB(14); SUB(15);                        NEXT;       // A2
-
-    ADD(11); ADD(11); ADD(12); ADD(12); ADD(13);
-    SUB(15); SUB(8); SUB(9);                        NEXT;         // A3
-
-    ADD(12); ADD(12); ADD(13); ADD(13); ADD(14);
-    SUB(9); SUB(10);                                   NEXT;      // A4
-
-    ADD(13); ADD(13); ADD(14); ADD(14); ADD(15);
-    SUB(10); SUB(11);                                   NEXT;     // A5
-
-    ADD(14); ADD(14); ADD(15); ADD(15); ADD(14); ADD(13);
-    SUB(8); SUB(9);                                   NEXT;       // A6
-
-    ADD(15); ADD(15); ADD(15); ADD(8);
-    SUB(10); SUB(11); SUB(12); SUB(13);             LAST;         // A7
-
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t expected_width = 2 * 256 / biL;
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
+    ret = mbedtls_ecp_mod_p256_raw(N->p, expected_width);
 cleanup:
     return ret;
 }
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs)
+{
+    if (X_limbs != 2 * 256 / biL) {
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    }
+
+    INIT(256);
+
+    ADD(8);  ADD(9);
+    SUB(11); SUB(12); SUB(13); SUB(14);                   NEXT; // A0
+
+    ADD(9);  ADD(10);
+    SUB(12); SUB(13); SUB(14); SUB(15);                   NEXT; // A1
+
+    ADD(10); ADD(11);
+    SUB(13); SUB(14); SUB(15);                            NEXT; // A2
+
+    ADD(11); ADD(11); ADD(12); ADD(12); ADD(13);
+    SUB(15); SUB(8);  SUB(9);                             NEXT; // A3
+
+    ADD(12); ADD(12); ADD(13); ADD(13); ADD(14);
+    SUB(9);  SUB(10);                                     NEXT; // A4
+
+    ADD(13); ADD(13); ADD(14); ADD(14); ADD(15);
+    SUB(10); SUB(11);                                     NEXT; // A5
+
+    ADD(14); ADD(14); ADD(15); ADD(15); ADD(14); ADD(13);
+    SUB(8);  SUB(9);                                      NEXT; // A6
+
+    ADD(15); ADD(15); ADD(15); ADD(8);
+    SUB(10); SUB(11); SUB(12); SUB(13);                         // A7
+
+    RESET;
+
+    /* Use 2^224 * (2^32 - 1) + 2^192 + 2^96 - 1
+     * to modulo reduce the final carry. */
+    ADD_LAST; NEXT;                                             // A0
+    ;         NEXT;                                             // A1
+    ;         NEXT;                                             // A2
+    SUB_LAST; NEXT;                                             // A3
+    ;         NEXT;                                             // A4
+    ;         NEXT;                                             // A5
+    SUB_LAST; NEXT;                                             // A6
+    ADD_LAST;                                                   // A7
+
+    RESET;
+
+    /* Use 2^224 * (2^32 - 1) + 2^192 + 2^96 - 1
+     * to modulo reduce the carry generated by the previous reduction. */
+    ADD_LAST; NEXT;                                             // A0
+    ;         NEXT;                                             // A1
+    ;         NEXT;                                             // A2
+    SUB_LAST; NEXT;                                             // A3
+    ;         NEXT;                                             // A4
+    ;         NEXT;                                             // A5
+    SUB_LAST; NEXT;                                             // A6
+    ADD_LAST;                                                   // A7
+
+    LAST;
+
+    return 0;
+}
+
 #endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
@@ -5135,55 +5207,110 @@
  */
 static int ecp_mod_p384(mbedtls_mpi *N)
 {
-    INIT(384);
-
-    ADD(12); ADD(21); ADD(20);
-    SUB(23);                                              NEXT;   // A0
-
-    ADD(13); ADD(22); ADD(23);
-    SUB(12); SUB(20);                                   NEXT;     // A2
-
-    ADD(14); ADD(23);
-    SUB(13); SUB(21);                                   NEXT;     // A2
-
-    ADD(15); ADD(12); ADD(20); ADD(21);
-    SUB(14); SUB(22); SUB(23);                        NEXT;       // A3
-
-    ADD(21); ADD(21); ADD(16); ADD(13); ADD(12); ADD(20); ADD(22);
-    SUB(15); SUB(23); SUB(23);                        NEXT;       // A4
-
-    ADD(22); ADD(22); ADD(17); ADD(14); ADD(13); ADD(21); ADD(23);
-    SUB(16);                                              NEXT;   // A5
-
-    ADD(23); ADD(23); ADD(18); ADD(15); ADD(14); ADD(22);
-    SUB(17);                                              NEXT;   // A6
-
-    ADD(19); ADD(16); ADD(15); ADD(23);
-    SUB(18);                                              NEXT;   // A7
-
-    ADD(20); ADD(17); ADD(16);
-    SUB(19);                                              NEXT;   // A8
-
-    ADD(21); ADD(18); ADD(17);
-    SUB(20);                                              NEXT;   // A9
-
-    ADD(22); ADD(19); ADD(18);
-    SUB(21);                                              NEXT;   // A10
-
-    ADD(23); ADD(20); ADD(19);
-    SUB(22);                                              LAST;   // A11
-
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t expected_width = 2 * ((384 + biL - 1) / biL);
+    MBEDTLS_MPI_CHK(mbedtls_mpi_grow(N, expected_width));
+    ret = mbedtls_ecp_mod_p384_raw(N->p, expected_width);
 cleanup:
     return ret;
 }
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p384_raw(mbedtls_mpi_uint *X, size_t X_limbs)
+{
+    if (X_limbs != 2*((384 + biL - 1)/biL)) {
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    }
+
+    INIT(384);
+
+    ADD(12); ADD(21); ADD(20);
+    SUB(23);                                                NEXT; // A0
+
+    ADD(13); ADD(22); ADD(23);
+    SUB(12); SUB(20);                                       NEXT; // A1
+
+    ADD(14); ADD(23);
+    SUB(13); SUB(21);                                       NEXT; // A2
+
+    ADD(15); ADD(12); ADD(20); ADD(21);
+    SUB(14); SUB(22); SUB(23);                              NEXT; // A3
+
+    ADD(21); ADD(21); ADD(16); ADD(13); ADD(12); ADD(20); ADD(22);
+    SUB(15); SUB(23); SUB(23);                              NEXT; // A4
+
+    ADD(22); ADD(22); ADD(17); ADD(14); ADD(13); ADD(21); ADD(23);
+    SUB(16);                                                NEXT; // A5
+
+    ADD(23); ADD(23); ADD(18); ADD(15); ADD(14); ADD(22);
+    SUB(17);                                                NEXT; // A6
+
+    ADD(19); ADD(16); ADD(15); ADD(23);
+    SUB(18);                                                NEXT; // A7
+
+    ADD(20); ADD(17); ADD(16);
+    SUB(19);                                                NEXT; // A8
+
+    ADD(21); ADD(18); ADD(17);
+    SUB(20);                                                NEXT; // A9
+
+    ADD(22); ADD(19); ADD(18);
+    SUB(21);                                                NEXT; // A10
+
+    ADD(23); ADD(20); ADD(19);
+    SUB(22);                                                      // A11
+
+    RESET;
+
+    /* Use 2^384 = P + 2^128 + 2^96 - 2^32 + 1 to modulo reduce the final carry */
+    ADD_LAST; NEXT;                                               // A0
+    SUB_LAST; NEXT;                                               // A1
+    ;         NEXT;                                               // A2
+    ADD_LAST; NEXT;                                               // A3
+    ADD_LAST; NEXT;                                               // A4
+    ;         NEXT;                                               // A5
+    ;         NEXT;                                               // A6
+    ;         NEXT;                                               // A7
+    ;         NEXT;                                               // A8
+    ;         NEXT;                                               // A9
+    ;         NEXT;                                               // A10
+                                                                  // A11
+
+    RESET;
+
+    ADD_LAST; NEXT;                                               // A0
+    SUB_LAST; NEXT;                                               // A1
+    ;         NEXT;                                               // A2
+    ADD_LAST; NEXT;                                               // A3
+    ADD_LAST; NEXT;                                               // A4
+    ;         NEXT;                                               // A5
+    ;         NEXT;                                               // A6
+    ;         NEXT;                                               // A7
+    ;         NEXT;                                               // A8
+    ;         NEXT;                                               // A9
+    ;         NEXT;                                               // A10
+                                                                  // A11
+
+    LAST;
+
+    return 0;
+}
 #endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
 
-#undef A
 #undef LOAD32
-#undef STORE32
 #undef MAX32
+#undef A
+#undef STORE32
+#undef STORE0
+#undef ADD
+#undef SUB
+#undef ADD_CARRY
+#undef SUB_CARRY
+#undef ADD_LAST
+#undef SUB_LAST
 #undef INIT
 #undef NEXT
+#undef RESET
 #undef LAST
 
 #endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED ||
@@ -5256,7 +5383,7 @@
     addend += (X[P521_WIDTH - 1] >> 9);
     X[P521_WIDTH - 1] &= P521_MASK;
 
-    /* Resuse the top part of X (already zeroed) as a helper array for
+    /* Reuse the top part of X (already zeroed) as a helper array for
      * carrying out the addition. */
     mbedtls_mpi_uint *addend_arr = X + P521_WIDTH;
     addend_arr[0] = addend;
@@ -5324,6 +5451,11 @@
 #define P224_WIDTH_MAX   DIV_ROUND_UP(28, sizeof(mbedtls_mpi_uint))
 #define P224_UNUSED_BITS ((P224_WIDTH_MAX * sizeof(mbedtls_mpi_uint) * 8) - 224)
 
+static int ecp_mod_p448(mbedtls_mpi *N)
+{
+    return mbedtls_ecp_mod_p448(N);
+}
+
 /*
  * Fast quasi-reduction modulo p448 = 2^448 - 2^224 - 1
  * Write N as A0 + 2^448 A1 and A1 as B0 + 2^224 B1, and return
@@ -5335,7 +5467,8 @@
  * but for 64-bit targets it should use half the number of operations if we do
  * the reduction with 224-bit limbs, since mpi_add_mpi will then use 64-bit adds.
  */
-static int ecp_mod_p448(mbedtls_mpi *N)
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p448(mbedtls_mpi *N)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t i;
@@ -5405,7 +5538,6 @@
                                   size_t adjust, size_t shift, mbedtls_mpi_uint mask)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t i;
     mbedtls_mpi M, R;
     mbedtls_mpi_uint Mp[P_KOBLITZ_MAX + P_KOBLITZ_R + 1];
 
@@ -5422,55 +5554,31 @@
     M.s = 1;
     M.p = Mp;
 
-    /* M = A1 */
-    M.n = N->n - (p_limbs - adjust);
-    if (M.n > p_limbs + adjust) {
-        M.n = p_limbs + adjust;
-    }
-    memset(Mp, 0, sizeof(Mp));
-    memcpy(Mp, N->p + p_limbs - adjust, M.n * sizeof(mbedtls_mpi_uint));
-    if (shift != 0) {
-        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&M, shift));
-    }
-    M.n += R.n; /* Make room for multiplication by R */
+    for (size_t pass = 0; pass < 2; pass++) {
+        /* M = A1 */
+        M.n = N->n - (p_limbs - adjust);
+        if (M.n > p_limbs + adjust) {
+            M.n = p_limbs + adjust;
+        }
+        memset(Mp, 0, sizeof(Mp));
+        memcpy(Mp, N->p + p_limbs - adjust, M.n * sizeof(mbedtls_mpi_uint));
+        if (shift != 0) {
+            MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&M, shift));
+        }
+        M.n += R.n; /* Make room for multiplication by R */
 
-    /* N = A0 */
-    if (mask != 0) {
-        N->p[p_limbs - 1] &= mask;
-    }
-    for (i = p_limbs; i < N->n; i++) {
-        N->p[i] = 0;
-    }
+        /* N = A0 */
+        if (mask != 0) {
+            N->p[p_limbs - 1] &= mask;
+        }
+        for (size_t i = p_limbs; i < N->n; i++) {
+            N->p[i] = 0;
+        }
 
-    /* N = A0 + R * A1 */
-    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&M, &M, &R));
-    MBEDTLS_MPI_CHK(mbedtls_mpi_add_abs(N, N, &M));
-
-    /* Second pass */
-
-    /* M = A1 */
-    M.n = N->n - (p_limbs - adjust);
-    if (M.n > p_limbs + adjust) {
-        M.n = p_limbs + adjust;
+        /* N = A0 + R * A1 */
+        MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&M, &M, &R));
+        MBEDTLS_MPI_CHK(mbedtls_mpi_add_abs(N, N, &M));
     }
-    memset(Mp, 0, sizeof(Mp));
-    memcpy(Mp, N->p + p_limbs - adjust, M.n * sizeof(mbedtls_mpi_uint));
-    if (shift != 0) {
-        MBEDTLS_MPI_CHK(mbedtls_mpi_shift_r(&M, shift));
-    }
-    M.n += R.n; /* Make room for multiplication by R */
-
-    /* N = A0 */
-    if (mask != 0) {
-        N->p[p_limbs - 1] &= mask;
-    }
-    for (i = p_limbs; i < N->n; i++) {
-        N->p[i] = 0;
-    }
-
-    /* N = A0 + R * A1 */
-    MBEDTLS_MPI_CHK(mbedtls_mpi_mul_mpi(&M, &M, &R));
-    MBEDTLS_MPI_CHK(mbedtls_mpi_add_abs(N, N, &M));
 
 cleanup:
     return ret;
@@ -5486,6 +5594,12 @@
  */
 static int ecp_mod_p192k1(mbedtls_mpi *N)
 {
+    return mbedtls_ecp_mod_p192k1(N);
+}
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p192k1(mbedtls_mpi *N)
+{
     static mbedtls_mpi_uint Rp[] = {
         MBEDTLS_BYTES_TO_T_UINT_8(0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00,
                                   0x00)
@@ -5497,11 +5611,18 @@
 #endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
+
+static int ecp_mod_p224k1(mbedtls_mpi *N)
+{
+    return mbedtls_ecp_mod_p224k1(N);
+}
+
 /*
  * Fast quasi-reduction modulo p224k1 = 2^224 - R,
  * with R = 2^32 + 2^12 + 2^11 + 2^9 + 2^7 + 2^4 + 2 + 1 = 0x0100001A93
  */
-static int ecp_mod_p224k1(mbedtls_mpi *N)
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224k1(mbedtls_mpi *N)
 {
     static mbedtls_mpi_uint Rp[] = {
         MBEDTLS_BYTES_TO_T_UINT_8(0x93, 0x1A, 0x00, 0x00, 0x01, 0x00, 0x00,
@@ -5519,11 +5640,18 @@
 #endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
 
 #if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
+
+static int ecp_mod_p256k1(mbedtls_mpi *N)
+{
+    return mbedtls_ecp_mod_p256k1(N);
+}
+
 /*
  * Fast quasi-reduction modulo p256k1 = 2^256 - R,
  * with R = 2^32 + 2^9 + 2^8 + 2^7 + 2^6 + 2^4 + 1 = 0x01000003D1
  */
-static int ecp_mod_p256k1(mbedtls_mpi *N)
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256k1(mbedtls_mpi *N)
 {
     static mbedtls_mpi_uint Rp[] = {
         MBEDTLS_BYTES_TO_T_UINT_8(0xD1, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00,
@@ -5718,4 +5846,4 @@
 }
 #endif /* MBEDTLS_TEST_HOOKS */
 #endif /* !MBEDTLS_ECP_ALT */
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
diff --git a/library/ecp_invasive.h b/library/ecp_invasive.h
index aba7cca..68187ac 100644
--- a/library/ecp_invasive.h
+++ b/library/ecp_invasive.h
@@ -31,22 +31,7 @@
 #include "bignum_mod.h"
 #include "mbedtls/ecp.h"
 
-#if defined(MBEDTLS_TEST_HOOKS) && defined(MBEDTLS_ECP_C)
-
-#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) ||   \
-    defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) ||   \
-    defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
-/* Preconditions:
- *   - bits is a multiple of 64 or is 224
- *   - c is -1 or -2
- *   - 0 <= N < 2^bits
- *   - N has room for bits plus one limb
- *
- * Behavior:
- * Set N to c * 2^bits + old_value_of_N.
- */
-void mbedtls_ecp_fix_negative(mbedtls_mpi *N, signed char c, size_t bits);
-#endif
+#if defined(MBEDTLS_TEST_HOOKS) && defined(MBEDTLS_ECP_LIGHT)
 
 #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
 /** Generate a private key on a Montgomery curve (Curve25519 or Curve448).
@@ -62,7 +47,7 @@
  *                  This is the bit-size of the key minus 1:
  *                  254 for Curve25519 or 447 for Curve448.
  * \param d         The randomly generated key. This is a number of size
- *                  exactly \p n_bits + 1 bits, with the least significant bits
+ *                  exactly \p high_bit + 1 bits, with the least significant bits
  *                  masked as specified in [Curve25519] and in [RFC7748] §5.
  * \param f_rng     The RNG function.
  * \param p_rng     The RNG context to be passed to \p f_rng.
@@ -70,7 +55,7 @@
  * \return          \c 0 on success.
  * \return          \c MBEDTLS_ERR_ECP_xxx or MBEDTLS_ERR_MPI_xxx on failure.
  */
-int mbedtls_ecp_gen_privkey_mx(size_t n_bits,
+int mbedtls_ecp_gen_privkey_mx(size_t high_bit,
                                mbedtls_mpi *d,
                                int (*f_rng)(void *, unsigned char *, size_t),
                                void *p_rng);
@@ -96,6 +81,50 @@
 
 #endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
 
+#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
+
+/** Fast quasi-reduction modulo p224 (FIPS 186-3 D.2.2)
+ *
+ * \param[in,out]   X       The address of the MPI to be converted.
+ *                          Must have exact limb size that stores a 448-bit MPI
+ *                          (double the bitlength of the modulus).
+ *                          Upon return holds the reduced value which is
+ *                          in range `0 <= X < 2 * N` (where N is the modulus).
+ *                          The bitlength of the reduced value is the same as
+ *                          that of the modulus (224 bits).
+ * \param[in]       X_limbs The length of \p X in limbs.
+ *
+ * \return          \c 0 on success.
+ * \return          #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p X_limbs is not the
+ *                  limb size that sores a 448-bit MPI.
+ */
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224_raw(mbedtls_mpi_uint *X, size_t X_limbs);
+
+#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
+
+#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
+
+/** Fast quasi-reduction modulo p256 (FIPS 186-3 D.2.3)
+ *
+ * \param[in,out]   X       The address of the MPI to be converted.
+ *                          Must have exact limb size that stores a 512-bit MPI
+ *                          (double the bitlength of the modulus).
+ *                          Upon return holds the reduced value which is
+ *                          in range `0 <= X < 2 * N` (where N is the modulus).
+ *                          The bitlength of the reduced value is the same as
+ *                          that of the modulus (256 bits).
+ * \param[in]       X_limbs The length of \p X in limbs.
+ *
+ * \return          \c 0 on success.
+ * \return          #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p X_limbs is not the
+ *                  limb size that sores a 512-bit MPI.
+ */
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs);
+
+#endif
+
 #if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
 
 /** Fast quasi-reduction modulo p521 = 2^521 - 1 (FIPS 186-3 D.2.5)
@@ -118,6 +147,59 @@
 
 #endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
 
+#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
+
+/** Fast quasi-reduction modulo p384 (FIPS 186-3 D.2.4)
+ *
+ * \param[in,out]   X       The address of the MPI to be converted.
+ *                          Must have exact limb size that stores a 768-bit MPI
+ *                          (double the bitlength of the modulus).
+ *                          Upon return holds the reduced value which is
+ *                          in range `0 <= X < 2 * N` (where N is the modulus).
+ *                          The bitlength of the reduced value is the same as
+ *                          that of the modulus (384 bits).
+ * \param[in]       X_limbs The length of \p N in limbs.
+ *
+ * \return          \c 0 on success.
+ * \return          #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p N_n does not have
+ *                  twice as many limbs as the modulus.
+ */
+MBEDTLS_STATIC_TESTABLE
+int  mbedtls_ecp_mod_p384_raw(mbedtls_mpi_uint *X, size_t X_limbs);
+
+#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
+
+#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
+
+/*
+ * Fast quasi-reduction modulo p192k1 = 2^192 - R,
+ * with R = 2^32 + 2^12 + 2^8 + 2^7 + 2^6 + 2^3 + 1 = 0x0100001119
+ */
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p192k1(mbedtls_mpi *N);
+
+#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
+#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p224k1(mbedtls_mpi *N);
+
+#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
+
+#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p256k1(mbedtls_mpi *N);
+
+#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
+
+#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+
+MBEDTLS_STATIC_TESTABLE
+int mbedtls_ecp_mod_p448(mbedtls_mpi *N);
+
+#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
+
 /** Initialise a modulus with hard-coded const curve data.
  *
  * \note            The caller is responsible for the \p N modulus' memory.
diff --git a/library/entropy.c b/library/entropy.c
index e55410c..0007917 100644
--- a/library/entropy.c
+++ b/library/entropy.c
@@ -34,9 +34,6 @@
 
 #include "mbedtls/platform.h"
 
-#include "mbedtls/platform.h"
-
-
 #define ENTROPY_MAX_LOOP    256     /**< Maximum amount to loop before error */
 
 void mbedtls_entropy_init(mbedtls_entropy_context *ctx)
@@ -49,11 +46,7 @@
 #endif
 
     ctx->accumulator_started = 0;
-#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
-    mbedtls_sha512_init(&ctx->accumulator);
-#else
-    mbedtls_sha256_init(&ctx->accumulator);
-#endif
+    mbedtls_md_init(&ctx->accumulator);
 
     /* Reminder: Update ENTROPY_HAVE_STRONG in the test files
      *           when adding more strong entropy sources here. */
@@ -89,11 +82,7 @@
 #if defined(MBEDTLS_THREADING_C)
     mbedtls_mutex_free(&ctx->mutex);
 #endif
-#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
-    mbedtls_sha512_free(&ctx->accumulator);
-#else
-    mbedtls_sha256_free(&ctx->accumulator);
-#endif
+    mbedtls_md_free(&ctx->accumulator);
 #if defined(MBEDTLS_ENTROPY_NV_SEED)
     ctx->initial_entropy_run = 0;
 #endif
@@ -150,15 +139,10 @@
     int ret = 0;
 
     if (use_len > MBEDTLS_ENTROPY_BLOCK_SIZE) {
-#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
-        if ((ret = mbedtls_sha512(data, len, tmp, 0)) != 0) {
+        if ((ret = mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_ENTROPY_MD),
+                              data, len, tmp)) != 0) {
             goto cleanup;
         }
-#else
-        if ((ret = mbedtls_sha256(data, len, tmp, 0)) != 0) {
-            goto cleanup;
-        }
-#endif
         p = tmp;
         use_len = MBEDTLS_ENTROPY_BLOCK_SIZE;
     }
@@ -171,29 +155,22 @@
      * it is sufficient to start the accumulator here only because all calls to
      * gather entropy eventually execute this code.
      */
-#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
-    if (ctx->accumulator_started == 0 &&
-        (ret = mbedtls_sha512_starts(&ctx->accumulator, 0)) != 0) {
-        goto cleanup;
-    } else {
+    if (ctx->accumulator_started == 0) {
+        ret = mbedtls_md_setup(&ctx->accumulator,
+                               mbedtls_md_info_from_type(MBEDTLS_ENTROPY_MD), 0);
+        if (ret != 0) {
+            goto cleanup;
+        }
+        ret = mbedtls_md_starts(&ctx->accumulator);
+        if (ret != 0) {
+            goto cleanup;
+        }
         ctx->accumulator_started = 1;
     }
-    if ((ret = mbedtls_sha512_update(&ctx->accumulator, header, 2)) != 0) {
+    if ((ret = mbedtls_md_update(&ctx->accumulator, header, 2)) != 0) {
         goto cleanup;
     }
-    ret = mbedtls_sha512_update(&ctx->accumulator, p, use_len);
-#else
-    if (ctx->accumulator_started == 0 &&
-        (ret = mbedtls_sha256_starts(&ctx->accumulator, 0)) != 0) {
-        goto cleanup;
-    } else {
-        ctx->accumulator_started = 1;
-    }
-    if ((ret = mbedtls_sha256_update(&ctx->accumulator, header, 2)) != 0) {
-        goto cleanup;
-    }
-    ret = mbedtls_sha256_update(&ctx->accumulator, p, use_len);
-#endif
+    ret = mbedtls_md_update(&ctx->accumulator, p, use_len);
 
 cleanup:
     mbedtls_platform_zeroize(tmp, sizeof(tmp));
@@ -354,62 +331,41 @@
 
     memset(buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE);
 
-#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
     /*
      * Note that at this stage it is assumed that the accumulator was started
      * in a previous call to entropy_update(). If this is not guaranteed, the
      * code below will fail.
      */
-    if ((ret = mbedtls_sha512_finish(&ctx->accumulator, buf)) != 0) {
+    if ((ret = mbedtls_md_finish(&ctx->accumulator, buf)) != 0) {
         goto exit;
     }
 
     /*
      * Reset accumulator and counters and recycle existing entropy
      */
-    mbedtls_sha512_free(&ctx->accumulator);
-    mbedtls_sha512_init(&ctx->accumulator);
-    if ((ret = mbedtls_sha512_starts(&ctx->accumulator, 0)) != 0) {
+    mbedtls_md_free(&ctx->accumulator);
+    mbedtls_md_init(&ctx->accumulator);
+    ret = mbedtls_md_setup(&ctx->accumulator,
+                           mbedtls_md_info_from_type(MBEDTLS_ENTROPY_MD), 0);
+    if (ret != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_sha512_update(&ctx->accumulator, buf,
-                                     MBEDTLS_ENTROPY_BLOCK_SIZE)) != 0) {
+    ret = mbedtls_md_starts(&ctx->accumulator);
+    if (ret != 0) {
+        goto exit;
+    }
+    if ((ret = mbedtls_md_update(&ctx->accumulator, buf,
+                                 MBEDTLS_ENTROPY_BLOCK_SIZE)) != 0) {
         goto exit;
     }
 
     /*
-     * Perform second SHA-512 on entropy
+     * Perform second hashing on entropy
      */
-    if ((ret = mbedtls_sha512(buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
-                              buf, 0)) != 0) {
+    if ((ret = mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_ENTROPY_MD),
+                          buf, MBEDTLS_ENTROPY_BLOCK_SIZE, buf)) != 0) {
         goto exit;
     }
-#else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
-    if ((ret = mbedtls_sha256_finish(&ctx->accumulator, buf)) != 0) {
-        goto exit;
-    }
-
-    /*
-     * Reset accumulator and counters and recycle existing entropy
-     */
-    mbedtls_sha256_free(&ctx->accumulator);
-    mbedtls_sha256_init(&ctx->accumulator);
-    if ((ret = mbedtls_sha256_starts(&ctx->accumulator, 0)) != 0) {
-        goto exit;
-    }
-    if ((ret = mbedtls_sha256_update(&ctx->accumulator, buf,
-                                     MBEDTLS_ENTROPY_BLOCK_SIZE)) != 0) {
-        goto exit;
-    }
-
-    /*
-     * Perform second SHA-256 on entropy
-     */
-    if ((ret = mbedtls_sha256(buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
-                              buf, 0)) != 0) {
-        goto exit;
-    }
-#endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
 
     for (i = 0; i < ctx->source_count; i++) {
         ctx->source[i].size = 0;
diff --git a/library/gcm.c b/library/gcm.c
index 6d4495f..71fcc35 100644
--- a/library/gcm.c
+++ b/library/gcm.c
@@ -42,6 +42,10 @@
 #include "aesni.h"
 #endif
 
+#if defined(MBEDTLS_AESCE_C)
+#include "aesce.h"
+#endif
+
 #if !defined(MBEDTLS_GCM_ALT)
 
 /*
@@ -86,13 +90,19 @@
     ctx->HL[8] = vl;
     ctx->HH[8] = vh;
 
-#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
     /* With CLMUL support, we need only h, not the rest of the table */
     if (mbedtls_aesni_has_support(MBEDTLS_AESNI_CLMUL)) {
         return 0;
     }
 #endif
 
+#if defined(MBEDTLS_AESCE_C) && defined(MBEDTLS_HAVE_ARM64)
+    if (mbedtls_aesce_has_support()) {
+        return 0;
+    }
+#endif
+
     /* 0 corresponds to 0 in GF(2^128) */
     ctx->HH[0] = 0;
     ctx->HL[0] = 0;
@@ -183,10 +193,11 @@
     unsigned char lo, hi, rem;
     uint64_t zh, zl;
 
-#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
     if (mbedtls_aesni_has_support(MBEDTLS_AESNI_CLMUL)) {
         unsigned char h[16];
 
+        /* mbedtls_aesni_gcm_mult needs big-endian input */
         MBEDTLS_PUT_UINT32_BE(ctx->HH[8] >> 32, h,  0);
         MBEDTLS_PUT_UINT32_BE(ctx->HH[8],       h,  4);
         MBEDTLS_PUT_UINT32_BE(ctx->HL[8] >> 32, h,  8);
@@ -195,7 +206,22 @@
         mbedtls_aesni_gcm_mult(output, x, h);
         return;
     }
-#endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */
+#endif /* MBEDTLS_AESNI_HAVE_CODE */
+
+#if defined(MBEDTLS_AESCE_C) && defined(MBEDTLS_HAVE_ARM64)
+    if (mbedtls_aesce_has_support()) {
+        unsigned char h[16];
+
+        /* mbedtls_aesce_gcm_mult needs big-endian input */
+        MBEDTLS_PUT_UINT32_BE(ctx->HH[8] >> 32, h,  0);
+        MBEDTLS_PUT_UINT32_BE(ctx->HH[8],       h,  4);
+        MBEDTLS_PUT_UINT32_BE(ctx->HL[8] >> 32, h,  8);
+        MBEDTLS_PUT_UINT32_BE(ctx->HL[8],       h, 12);
+
+        mbedtls_aesce_gcm_mult(output, x, h);
+        return;
+    }
+#endif
 
     lo = x[15] & 0xf;
 
@@ -845,6 +871,19 @@
     mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
     size_t olen;
 
+    if (verbose != 0) {
+#if defined(MBEDTLS_GCM_ALT)
+        mbedtls_printf("  GCM note: alternative implementation.\n");
+#else /* MBEDTLS_GCM_ALT */
+#if defined(MBEDTLS_AESNI_HAVE_CODE)
+        if (mbedtls_aesni_has_support(MBEDTLS_AESNI_CLMUL)) {
+            mbedtls_printf("  GCM note: using AESNI.\n");
+        } else
+#endif
+        mbedtls_printf("  GCM note: built-in implementation.\n");
+#endif /* MBEDTLS_GCM_ALT */
+    }
+
     for (j = 0; j < 3; j++) {
         int key_len = 128 + 64 * j;
 
diff --git a/library/hash_info.c b/library/hash_info.c
index f8b41a5..37e44c6 100644
--- a/library/hash_info.c
+++ b/library/hash_info.c
@@ -21,7 +21,6 @@
  */
 
 #include "hash_info.h"
-#include "mbedtls/legacy_or_psa.h"
 #include "mbedtls/error.h"
 
 typedef struct {
@@ -32,25 +31,25 @@
 } hash_entry;
 
 static const hash_entry hash_table[] = {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
     { PSA_ALG_MD5, MBEDTLS_MD_MD5, 16, 64 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_RIPEMD160_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
     { PSA_ALG_RIPEMD160, MBEDTLS_MD_RIPEMD160, 20, 64 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { PSA_ALG_SHA_1, MBEDTLS_MD_SHA1, 20, 64 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
     { PSA_ALG_SHA_224, MBEDTLS_MD_SHA224, 28, 64 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { PSA_ALG_SHA_256, MBEDTLS_MD_SHA256, 32, 64 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { PSA_ALG_SHA_384, MBEDTLS_MD_SHA384, 48, 128 },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
     { PSA_ALG_SHA_512, MBEDTLS_MD_SHA512, 64, 128 },
 #endif
     { PSA_ALG_NONE, MBEDTLS_MD_NONE, 0, 0 },
@@ -104,6 +103,7 @@
     return entry->md_type;
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 int mbedtls_md_error_from_psa(psa_status_t status)
 {
     switch (status) {
@@ -119,3 +119,4 @@
             return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
     }
 }
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
diff --git a/library/hash_info.h b/library/hash_info.h
index 47da934..f984c82 100644
--- a/library/hash_info.h
+++ b/library/hash_info.h
@@ -34,6 +34,7 @@
 
 #include "mbedtls/md.h"
 #include "psa/crypto.h"
+#include "mbedtls/platform_util.h"
 
 /** \def MBEDTLS_HASH_MAX_SIZE
  *
@@ -88,12 +89,13 @@
  */
 mbedtls_md_type_t mbedtls_hash_info_md_from_psa(psa_algorithm_t psa_alg);
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 /** Convert PSA status to MD error code.
  *
  * \param status    PSA status.
  *
  * \return          The corresponding MD error code,
  */
-int mbedtls_md_error_from_psa(psa_status_t status);
-
+int MBEDTLS_DEPRECATED mbedtls_md_error_from_psa(psa_status_t status);
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
 #endif /* MBEDTLS_HASH_INFO_H */
diff --git a/library/hmac_drbg.c b/library/hmac_drbg.c
index b157302..af205aa 100644
--- a/library/hmac_drbg.c
+++ b/library/hmac_drbg.c
@@ -510,7 +510,7 @@
 
 #if defined(MBEDTLS_SELF_TEST)
 
-#if !defined(MBEDTLS_SHA1_C)
+#if !defined(MBEDTLS_MD_CAN_SHA1)
 /* Dummy checkup routine */
 int mbedtls_hmac_drbg_self_test(int verbose)
 {
@@ -639,7 +639,7 @@
 
     return 0;
 }
-#endif /* MBEDTLS_SHA1_C */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_SELF_TEST */
 
 #endif /* MBEDTLS_HMAC_DRBG_C */
diff --git a/library/lmots.c b/library/lmots.c
index c6b45ed..4061edd 100644
--- a/library/lmots.c
+++ b/library/lmots.c
@@ -41,9 +41,14 @@
 #include "mbedtls/lms.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
+#include "mbedtls/psa_util.h"
 
 #include "psa/crypto.h"
 
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_lms_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+
 #define PUBLIC_KEY_TYPE_OFFSET     (0)
 #define PUBLIC_KEY_I_KEY_ID_OFFSET (PUBLIC_KEY_TYPE_OFFSET + \
                                     MBEDTLS_LMOTS_TYPE_LEN)
@@ -198,7 +203,7 @@
 exit:
     psa_hash_abort(&op);
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 /* Hash each element of the string of digits (+ checksum), producing a hash
@@ -321,7 +326,7 @@
     psa_hash_abort(&op);
     mbedtls_platform_zeroize(tmp_hash, sizeof(tmp_hash));
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 /* Combine the hashes of the digit array into a public key. This is used in
@@ -386,9 +391,10 @@
         psa_hash_abort(&op);
     }
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 int mbedtls_lms_error_from_psa(psa_status_t status)
 {
     switch (status) {
@@ -406,6 +412,7 @@
             return MBEDTLS_ERR_ERROR_GENERIC_ERROR;
     }
 }
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 void mbedtls_lmots_public_init(mbedtls_lmots_public_t *ctx)
 {
@@ -682,7 +689,7 @@
 exit:
     psa_hash_abort(&op);
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 int mbedtls_lmots_calculate_public_key(mbedtls_lmots_public_t *ctx,
diff --git a/library/lmots.h b/library/lmots.h
index deeeace..98d1941 100644
--- a/library/lmots.h
+++ b/library/lmots.h
@@ -79,6 +79,7 @@
 unsigned int mbedtls_lms_network_bytes_to_unsigned_int(size_t len,
                                                        const unsigned char *bytes);
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 /**
  * \brief                    This function converts a \ref psa_status_t to a
  *                           low-level LMS error code.
@@ -87,8 +88,8 @@
  *
  * \return                   The corresponding LMS error code.
  */
-int mbedtls_lms_error_from_psa(psa_status_t status);
-
+int MBEDTLS_DEPRECATED mbedtls_lms_error_from_psa(psa_status_t status);
+#endif
 
 /**
  * \brief                    This function initializes a public LMOTS context
diff --git a/library/lms.c b/library/lms.c
index 76bcc19..acc3523 100644
--- a/library/lms.c
+++ b/library/lms.c
@@ -39,13 +39,17 @@
 #include "lmots.h"
 
 #include "psa/crypto.h"
-
+#include "mbedtls/psa_util.h"
 #include "mbedtls/lms.h"
 #include "mbedtls/error.h"
 #include "mbedtls/platform_util.h"
 
 #include "mbedtls/platform.h"
 
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_lms_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+
 #define SIG_Q_LEAF_ID_OFFSET     (0)
 #define SIG_OTS_SIG_OFFSET       (SIG_Q_LEAF_ID_OFFSET + \
                                   MBEDTLS_LMOTS_Q_LEAF_ID_LEN)
@@ -140,7 +144,7 @@
 exit:
     psa_hash_abort(&op);
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 /* Calculate the value of an internal node of the Merkle tree (which is a hash
@@ -220,7 +224,7 @@
 exit:
     psa_hash_abort(&op);
 
-    return mbedtls_lms_error_from_psa(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 void mbedtls_lms_public_init(mbedtls_lms_public_t *ctx)
diff --git a/library/md.c b/library/md.c
index 90c6bff..a95763e 100644
--- a/library/md.c
+++ b/library/md.c
@@ -23,7 +23,23 @@
 
 #include "common.h"
 
-#if defined(MBEDTLS_MD_C)
+/*
+ * Availability of functions in this module is controlled by two
+ * feature macros:
+ * - MBEDTLS_MD_C enables the whole module;
+ * - MBEDTLS_MD_LIGHT enables only functions for hashing and accessing
+ * most hash metadata (everything except string names); is it
+ * automatically set whenever MBEDTLS_MD_C is defined.
+ *
+ * In this file, functions from MD_LIGHT are at the top, MD_C at the end.
+ *
+ * In the future we may want to change the contract of some functions
+ * (behaviour with NULL arguments) depending on whether MD_C is defined or
+ * only MD_LIGHT. Also, the exact scope of MD_LIGHT might vary.
+ *
+ * For these reasons, we're keeping MD_LIGHT internal for now.
+ */
+#if defined(MBEDTLS_MD_LIGHT)
 
 #include "mbedtls/md.h"
 #include "md_wrap.h"
@@ -39,6 +55,11 @@
 #include "mbedtls/sha3.h"
 #endif
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+#include <psa/crypto.h>
+#include "psa_crypto_core.h"
+#endif
+
 #include "mbedtls/platform.h"
 
 #include <string.h>
@@ -47,7 +68,7 @@
 #include <stdio.h>
 #endif
 
-#if defined(MBEDTLS_MD5_C)
+#if defined(MBEDTLS_MD_CAN_MD5)
 const mbedtls_md_info_t mbedtls_md5_info = {
     "MD5",
     MBEDTLS_MD_MD5,
@@ -56,7 +77,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_RIPEMD160_C)
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
 const mbedtls_md_info_t mbedtls_ripemd160_info = {
     "RIPEMD160",
     MBEDTLS_MD_RIPEMD160,
@@ -65,7 +86,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_SHA1_C)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 const mbedtls_md_info_t mbedtls_sha1_info = {
     "SHA1",
     MBEDTLS_MD_SHA1,
@@ -74,7 +95,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_SHA224_C)
+#if defined(MBEDTLS_MD_CAN_SHA224)
 const mbedtls_md_info_t mbedtls_sha224_info = {
     "SHA224",
     MBEDTLS_MD_SHA224,
@@ -83,7 +104,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_SHA256_C)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 const mbedtls_md_info_t mbedtls_sha256_info = {
     "SHA256",
     MBEDTLS_MD_SHA256,
@@ -92,7 +113,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_SHA384_C)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 const mbedtls_md_info_t mbedtls_sha384_info = {
     "SHA384",
     MBEDTLS_MD_SHA384,
@@ -101,7 +122,7 @@
 };
 #endif
 
-#if defined(MBEDTLS_SHA512_C)
+#if defined(MBEDTLS_MD_CAN_SHA512)
 const mbedtls_md_info_t mbedtls_sha512_info = {
     "SHA512",
     MBEDTLS_MD_SHA512,
@@ -137,141 +158,34 @@
 };
 #endif
 
-
-/*
- * Reminder: update profiles in x509_crt.c when adding a new hash!
- */
-static const int supported_digests[] = {
-
-#if defined(MBEDTLS_SHA3_C)
-    MBEDTLS_MD_SHA3_512,
-    MBEDTLS_MD_SHA3_384,
-    MBEDTLS_MD_SHA3_256,
-    MBEDTLS_MD_SHA3_224,
-#endif
-
-#if defined(MBEDTLS_SHA512_C)
-    MBEDTLS_MD_SHA512,
-#endif
-
-#if defined(MBEDTLS_SHA384_C)
-    MBEDTLS_MD_SHA384,
-#endif
-
-#if defined(MBEDTLS_SHA256_C)
-    MBEDTLS_MD_SHA256,
-#endif
-#if defined(MBEDTLS_SHA224_C)
-    MBEDTLS_MD_SHA224,
-#endif
-
-#if defined(MBEDTLS_SHA1_C)
-    MBEDTLS_MD_SHA1,
-#endif
-
-#if defined(MBEDTLS_RIPEMD160_C)
-    MBEDTLS_MD_RIPEMD160,
-#endif
-
-#if defined(MBEDTLS_MD5_C)
-    MBEDTLS_MD_MD5,
-#endif
-
-    MBEDTLS_MD_NONE
-};
-
-const int *mbedtls_md_list(void)
-{
-    return supported_digests;
-}
-
-const mbedtls_md_info_t *mbedtls_md_info_from_string(const char *md_name)
-{
-    if (NULL == md_name) {
-        return NULL;
-    }
-
-    /* Get the appropriate digest information */
-#if defined(MBEDTLS_MD5_C)
-    if (!strcmp("MD5", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_MD5);
-    }
-#endif
-#if defined(MBEDTLS_RIPEMD160_C)
-    if (!strcmp("RIPEMD160", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_RIPEMD160);
-    }
-#endif
-#if defined(MBEDTLS_SHA1_C)
-    if (!strcmp("SHA1", md_name) || !strcmp("SHA", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA1);
-    }
-#endif
-#if defined(MBEDTLS_SHA224_C)
-    if (!strcmp("SHA224", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA224);
-    }
-#endif
-#if defined(MBEDTLS_SHA256_C)
-    if (!strcmp("SHA256", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA256);
-    }
-#endif
-#if defined(MBEDTLS_SHA384_C)
-    if (!strcmp("SHA384", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA384);
-    }
-#endif
-#if defined(MBEDTLS_SHA512_C)
-    if (!strcmp("SHA512", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA512);
-    }
-#endif
-#if defined(MBEDTLS_SHA3_C)
-    if (!strcmp("SHA3-224", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_224);
-    }
-    if (!strcmp("SHA3-256", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_256);
-    }
-    if (!strcmp("SHA3-384", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_384);
-    }
-    if (!strcmp("SHA3-512", md_name)) {
-        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_512);
-    }
-#endif
-    return NULL;
-}
-
 const mbedtls_md_info_t *mbedtls_md_info_from_type(mbedtls_md_type_t md_type)
 {
     switch (md_type) {
-#if defined(MBEDTLS_MD5_C)
+#if defined(MBEDTLS_MD_CAN_MD5)
         case MBEDTLS_MD_MD5:
             return &mbedtls_md5_info;
 #endif
-#if defined(MBEDTLS_RIPEMD160_C)
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
         case MBEDTLS_MD_RIPEMD160:
             return &mbedtls_ripemd160_info;
 #endif
-#if defined(MBEDTLS_SHA1_C)
+#if defined(MBEDTLS_MD_CAN_SHA1)
         case MBEDTLS_MD_SHA1:
             return &mbedtls_sha1_info;
 #endif
-#if defined(MBEDTLS_SHA224_C)
+#if defined(MBEDTLS_MD_CAN_SHA224)
         case MBEDTLS_MD_SHA224:
             return &mbedtls_sha224_info;
 #endif
-#if defined(MBEDTLS_SHA256_C)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_MD_SHA256:
             return &mbedtls_sha256_info;
 #endif
-#if defined(MBEDTLS_SHA384_C)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_MD_SHA384:
             return &mbedtls_sha384_info;
 #endif
-#if defined(MBEDTLS_SHA512_C)
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_MD_SHA512:
             return &mbedtls_sha512_info;
 #endif
@@ -290,18 +204,71 @@
     }
 }
 
-const mbedtls_md_info_t *mbedtls_md_info_from_ctx(
-    const mbedtls_md_context_t *ctx)
+#if defined(MBEDTLS_MD_SOME_PSA)
+static psa_algorithm_t psa_alg_of_md(const mbedtls_md_info_t *info)
 {
-    if (ctx == NULL) {
-        return NULL;
+    switch (info->type) {
+#if defined(MBEDTLS_MD_MD5_VIA_PSA)
+        case MBEDTLS_MD_MD5:
+            return PSA_ALG_MD5;
+#endif
+#if defined(MBEDTLS_MD_RIPEMD160_VIA_PSA)
+        case MBEDTLS_MD_RIPEMD160:
+            return PSA_ALG_RIPEMD160;
+#endif
+#if defined(MBEDTLS_MD_SHA1_VIA_PSA)
+        case MBEDTLS_MD_SHA1:
+            return PSA_ALG_SHA_1;
+#endif
+#if defined(MBEDTLS_MD_SHA224_VIA_PSA)
+        case MBEDTLS_MD_SHA224:
+            return PSA_ALG_SHA_224;
+#endif
+#if defined(MBEDTLS_MD_SHA256_VIA_PSA)
+        case MBEDTLS_MD_SHA256:
+            return PSA_ALG_SHA_256;
+#endif
+#if defined(MBEDTLS_MD_SHA384_VIA_PSA)
+        case MBEDTLS_MD_SHA384:
+            return PSA_ALG_SHA_384;
+#endif
+#if defined(MBEDTLS_MD_SHA512_VIA_PSA)
+        case MBEDTLS_MD_SHA512:
+            return PSA_ALG_SHA_512;
+#endif
+        default:
+            return PSA_ALG_NONE;
+    }
+}
+
+static int md_can_use_psa(const mbedtls_md_info_t *info)
+{
+    psa_algorithm_t alg = psa_alg_of_md(info);
+    if (alg == PSA_ALG_NONE) {
+        return 0;
     }
 
-    return ctx->MBEDTLS_PRIVATE(md_info);
+    return psa_can_do_hash(alg);
 }
 
+static int mbedtls_md_error_from_psa(psa_status_t status)
+{
+    switch (status) {
+        case PSA_SUCCESS:
+            return 0;
+        case PSA_ERROR_NOT_SUPPORTED:
+            return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
+        case PSA_ERROR_INSUFFICIENT_MEMORY:
+            return MBEDTLS_ERR_MD_ALLOC_FAILED;
+        default:
+            return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
+    }
+}
+#endif /* MBEDTLS_MD_SOME_PSA */
+
 void mbedtls_md_init(mbedtls_md_context_t *ctx)
 {
+    /* Note: this sets engine (if present) to MBEDTLS_MD_ENGINE_LEGACY */
     memset(ctx, 0, sizeof(mbedtls_md_context_t));
 }
 
@@ -312,6 +279,11 @@
     }
 
     if (ctx->md_ctx != NULL) {
+#if defined(MBEDTLS_MD_SOME_PSA)
+        if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+            psa_hash_abort(ctx->md_ctx);
+        } else
+#endif
         switch (ctx->md_info->type) {
 #if defined(MBEDTLS_MD5_C)
             case MBEDTLS_MD_MD5:
@@ -363,11 +335,13 @@
         mbedtls_free(ctx->md_ctx);
     }
 
+#if defined(MBEDTLS_MD_C)
     if (ctx->hmac_ctx != NULL) {
         mbedtls_platform_zeroize(ctx->hmac_ctx,
                                  2 * ctx->md_info->block_size);
         mbedtls_free(ctx->hmac_ctx);
     }
+#endif
 
     mbedtls_platform_zeroize(ctx, sizeof(mbedtls_md_context_t));
 }
@@ -381,6 +355,21 @@
         return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (src->engine != dst->engine) {
+        /* This can happen with src set to legacy because PSA wasn't ready
+         * yet, and dst to PSA because it became ready in the meantime.
+         * We currently don't support that case (we'd need to re-allocate
+         * md_ctx to the size of the appropriate MD context). */
+        return MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE;
+    }
+
+    if (src->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_status_t status = psa_hash_clone(src->md_ctx, dst->md_ctx);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
     switch (src->md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -449,8 +438,23 @@
 
     ctx->md_info = md_info;
     ctx->md_ctx = NULL;
+#if defined(MBEDTLS_MD_C)
     ctx->hmac_ctx = NULL;
+#else
+    if (hmac != 0) {
+        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
+    }
+#endif
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (md_can_use_psa(ctx->md_info)) {
+        ctx->md_ctx = mbedtls_calloc(1, sizeof(psa_hash_operation_t));
+        if (ctx->md_ctx == NULL) {
+            return MBEDTLS_ERR_MD_ALLOC_FAILED;
+        }
+        ctx->engine = MBEDTLS_MD_ENGINE_PSA;
+    } else
+#endif
     switch (md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -499,6 +503,7 @@
             return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_C)
     if (hmac != 0) {
         ctx->hmac_ctx = mbedtls_calloc(2, md_info->block_size);
         if (ctx->hmac_ctx == NULL) {
@@ -506,6 +511,7 @@
             return MBEDTLS_ERR_MD_ALLOC_FAILED;
         }
     }
+#endif
 
     return 0;
 }
@@ -517,6 +523,15 @@
         return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_algorithm_t alg = psa_alg_of_md(ctx->md_info);
+        psa_hash_abort(ctx->md_ctx);
+        psa_status_t status = psa_hash_setup(ctx->md_ctx, alg);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
     switch (ctx->md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -567,6 +582,13 @@
         return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        psa_status_t status = psa_hash_update(ctx->md_ctx, input, ilen);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
     switch (ctx->md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -614,6 +636,15 @@
         return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (ctx->engine == MBEDTLS_MD_ENGINE_PSA) {
+        size_t size = ctx->md_info->size;
+        psa_status_t status = psa_hash_finish(ctx->md_ctx,
+                                              output, size, &size);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
     switch (ctx->md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -662,6 +693,16 @@
         return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
     }
 
+#if defined(MBEDTLS_MD_SOME_PSA)
+    if (md_can_use_psa(md_info)) {
+        size_t size = md_info->size;
+        psa_status_t status = psa_hash_compute(psa_alg_of_md(md_info),
+                                               input, ilen,
+                                               output, size, &size);
+        return mbedtls_md_error_from_psa(status);
+    }
+#endif
+
     switch (md_info->type) {
 #if defined(MBEDTLS_MD5_C)
         case MBEDTLS_MD_MD5:
@@ -706,6 +747,145 @@
     }
 }
 
+unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info)
+{
+    if (md_info == NULL) {
+        return 0;
+    }
+
+    return md_info->size;
+}
+
+mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info)
+{
+    if (md_info == NULL) {
+        return MBEDTLS_MD_NONE;
+    }
+
+    return md_info->type;
+}
+
+/************************************************************************
+ * Functions above this separator are part of MBEDTLS_MD_LIGHT,         *
+ * functions below are only available when MBEDTLS_MD_C is set.         *
+ ************************************************************************/
+#if defined(MBEDTLS_MD_C)
+
+/*
+ * Reminder: update profiles in x509_crt.c when adding a new hash!
+ */
+static const int supported_digests[] = {
+
+#if defined(MBEDTLS_MD_CAN_SHA512)
+    MBEDTLS_MD_SHA512,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA384)
+    MBEDTLS_MD_SHA384,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA256)
+    MBEDTLS_MD_SHA256,
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA224)
+    MBEDTLS_MD_SHA224,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_SHA1)
+    MBEDTLS_MD_SHA1,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+    MBEDTLS_MD_RIPEMD160,
+#endif
+
+#if defined(MBEDTLS_MD_CAN_MD5)
+    MBEDTLS_MD_MD5,
+#endif
+#if defined(MBEDTLS_SHA3_C)
+    MBEDTLS_MD_SHA3_224,
+    MBEDTLS_MD_SHA3_256,
+    MBEDTLS_MD_SHA3_384,
+    MBEDTLS_MD_SHA3_512,
+#endif
+
+    MBEDTLS_MD_NONE
+};
+
+const int *mbedtls_md_list(void)
+{
+    return supported_digests;
+}
+
+const mbedtls_md_info_t *mbedtls_md_info_from_string(const char *md_name)
+{
+    if (NULL == md_name) {
+        return NULL;
+    }
+
+    /* Get the appropriate digest information */
+#if defined(MBEDTLS_MD_CAN_MD5)
+    if (!strcmp("MD5", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_MD5);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
+    if (!strcmp("RIPEMD160", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_RIPEMD160);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA1)
+    if (!strcmp("SHA1", md_name) || !strcmp("SHA", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA1);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA224)
+    if (!strcmp("SHA224", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA224);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA256)
+    if (!strcmp("SHA256", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA256);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA384)
+    if (!strcmp("SHA384", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA384);
+    }
+#endif
+#if defined(MBEDTLS_MD_CAN_SHA512)
+    if (!strcmp("SHA512", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA512);
+    }
+#endif
+#if defined(MBEDTLS_SHA3_C)
+    if (!strcmp("SHA3-224", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_224);
+    }
+    else if (!strcmp("SHA3-256", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_256);
+    }
+    else if (!strcmp("SHA3-384", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_384);
+    }
+    else if (!strcmp("SHA3-512", md_name)) {
+        return mbedtls_md_info_from_type(MBEDTLS_MD_SHA3_512);
+    }
+#endif
+    return NULL;
+}
+
+const mbedtls_md_info_t *mbedtls_md_info_from_ctx(
+    const mbedtls_md_context_t *ctx)
+{
+    if (ctx == NULL) {
+        return NULL;
+    }
+
+    return ctx->MBEDTLS_PRIVATE(md_info);
+}
+
 #if defined(MBEDTLS_FS_IO)
 int mbedtls_md_file(const mbedtls_md_info_t *md_info, const char *path, unsigned char *output)
 {
@@ -894,73 +1074,6 @@
     return ret;
 }
 
-int mbedtls_md_process(mbedtls_md_context_t *ctx, const unsigned char *data)
-{
-    if (ctx == NULL || ctx->md_info == NULL) {
-        return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
-    }
-
-    switch (ctx->md_info->type) {
-#if defined(MBEDTLS_MD5_C)
-        case MBEDTLS_MD_MD5:
-            return mbedtls_internal_md5_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_RIPEMD160_C)
-        case MBEDTLS_MD_RIPEMD160:
-            return mbedtls_internal_ripemd160_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA1_C)
-        case MBEDTLS_MD_SHA1:
-            return mbedtls_internal_sha1_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA224_C)
-        case MBEDTLS_MD_SHA224:
-            return mbedtls_internal_sha256_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA256_C)
-        case MBEDTLS_MD_SHA256:
-            return mbedtls_internal_sha256_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA384_C)
-        case MBEDTLS_MD_SHA384:
-            return mbedtls_internal_sha512_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA512_C)
-        case MBEDTLS_MD_SHA512:
-            return mbedtls_internal_sha512_process(ctx->md_ctx, data);
-#endif
-#if defined(MBEDTLS_SHA3_C)
-        /* mbedtls_md_process() is used for test suite. Since, sha3.c does not
-           implement mbedtls_sha3_process(), we silently return 0 */
-        case MBEDTLS_MD_SHA3_224:
-        case MBEDTLS_MD_SHA3_256:
-        case MBEDTLS_MD_SHA3_384:
-        case MBEDTLS_MD_SHA3_512:
-            return 0;
-#endif
-        default:
-            return MBEDTLS_ERR_MD_BAD_INPUT_DATA;
-    }
-}
-
-unsigned char mbedtls_md_get_size(const mbedtls_md_info_t *md_info)
-{
-    if (md_info == NULL) {
-        return 0;
-    }
-
-    return md_info->size;
-}
-
-mbedtls_md_type_t mbedtls_md_get_type(const mbedtls_md_info_t *md_info)
-{
-    if (md_info == NULL) {
-        return MBEDTLS_MD_NONE;
-    }
-
-    return md_info->type;
-}
-
 const char *mbedtls_md_get_name(const mbedtls_md_info_t *md_info)
 {
     if (md_info == NULL) {
@@ -971,3 +1084,5 @@
 }
 
 #endif /* MBEDTLS_MD_C */
+
+#endif /* MBEDTLS_MD_LIGHT */
diff --git a/library/oid.c b/library/oid.c
index 86214b2..8e57fe4 100644
--- a/library/oid.c
+++ b/library/oid.c
@@ -28,8 +28,6 @@
 #include "mbedtls/error.h"
 #include "mbedtls/pk.h"
 
-#include "mbedtls/legacy_or_psa.h"
-
 #include <stdio.h>
 #include <string.h>
 
@@ -381,84 +379,84 @@
 static const oid_sig_alg_t oid_sig_alg[] =
 {
 #if defined(MBEDTLS_RSA_C)
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_MD5,        "md5WithRSAEncryption",     "RSA with MD5"),
         MBEDTLS_MD_MD5,      MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_MD5 */
+#if defined(MBEDTLS_MD_CAN_SHA1)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_SHA1,       "sha-1WithRSAEncryption",   "RSA with SHA1"),
         MBEDTLS_MD_SHA1,     MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA224)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_SHA224,     "sha224WithRSAEncryption",
                        "RSA with SHA-224"),
         MBEDTLS_MD_SHA224,   MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA224 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_SHA256,     "sha256WithRSAEncryption",
                        "RSA with SHA-256"),
         MBEDTLS_MD_SHA256,   MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_SHA384,     "sha384WithRSAEncryption",
                        "RSA with SHA-384"),
         MBEDTLS_MD_SHA384,   MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA512)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_PKCS1_SHA512,     "sha512WithRSAEncryption",
                        "RSA with SHA-512"),
         MBEDTLS_MD_SHA512,   MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA512 */
+#if defined(MBEDTLS_MD_CAN_SHA1)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_RSA_SHA_OBS,      "sha-1WithRSAEncryption",   "RSA with SHA1"),
         MBEDTLS_MD_SHA1,     MBEDTLS_PK_RSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_RSA_C */
 #if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_ECDSA_SHA1,       "ecdsa-with-SHA1",      "ECDSA with SHA1"),
         MBEDTLS_MD_SHA1,     MBEDTLS_PK_ECDSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA224)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_ECDSA_SHA224,     "ecdsa-with-SHA224",    "ECDSA with SHA224"),
         MBEDTLS_MD_SHA224,   MBEDTLS_PK_ECDSA,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_ECDSA_SHA256,     "ecdsa-with-SHA256",    "ECDSA with SHA256"),
         MBEDTLS_MD_SHA256,   MBEDTLS_PK_ECDSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_ECDSA_SHA384,     "ecdsa-with-SHA384",    "ECDSA with SHA384"),
         MBEDTLS_MD_SHA384,   MBEDTLS_PK_ECDSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA512)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_ECDSA_SHA512,     "ecdsa-with-SHA512",    "ECDSA with SHA512"),
         MBEDTLS_MD_SHA512,   MBEDTLS_PK_ECDSA,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA512 */
 #endif /* MBEDTLS_PK_CAN_ECDSA_SOME */
 #if defined(MBEDTLS_RSA_C)
     {
@@ -533,9 +531,9 @@
                         mbedtls_pk_type_t,
                         pk_alg)
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /*
- * For namedCurve (RFC 5480)
+ * For elliptic curves that use namedCurve inside ECParams (RFC 5480)
  */
 typedef struct {
     mbedtls_oid_descriptor_t    descriptor;
@@ -623,7 +621,48 @@
                         oid_ecp_grp,
                         mbedtls_ecp_group_id,
                         grp_id)
-#endif /* MBEDTLS_ECP_C */
+
+/*
+ * For Elliptic Curve algorithms that are directly
+ * encoded in the AlgorithmIdentifier (RFC 8410)
+ */
+typedef struct {
+    mbedtls_oid_descriptor_t    descriptor;
+    mbedtls_ecp_group_id        grp_id;
+} oid_ecp_grp_algid_t;
+
+static const oid_ecp_grp_algid_t oid_ecp_grp_algid[] =
+{
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+    {
+        OID_DESCRIPTOR(MBEDTLS_OID_X25519,               "X25519",       "X25519"),
+        MBEDTLS_ECP_DP_CURVE25519,
+    },
+#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
+#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+    {
+        OID_DESCRIPTOR(MBEDTLS_OID_X448,                 "X448",         "X448"),
+        MBEDTLS_ECP_DP_CURVE448,
+    },
+#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
+    {
+        NULL_OID_DESCRIPTOR,
+        MBEDTLS_ECP_DP_NONE,
+    },
+};
+
+FN_OID_TYPED_FROM_ASN1(oid_ecp_grp_algid_t, grp_id_algid, oid_ecp_grp_algid)
+FN_OID_GET_ATTR1(mbedtls_oid_get_ec_grp_algid,
+                 oid_ecp_grp_algid_t,
+                 grp_id_algid,
+                 mbedtls_ecp_group_id,
+                 grp_id)
+FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_ec_grp_algid,
+                        oid_ecp_grp_algid_t,
+                        oid_ecp_grp_algid,
+                        mbedtls_ecp_group_id,
+                        grp_id)
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_CIPHER_C)
 /*
@@ -668,43 +707,43 @@
 
 static const oid_md_alg_t oid_md_alg[] =
 {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_MD5,       "id-md5",       "MD5"),
         MBEDTLS_MD_MD5,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_SHA1,      "id-sha1",      "SHA-1"),
         MBEDTLS_MD_SHA1,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_SHA224,    "id-sha224",    "SHA-224"),
         MBEDTLS_MD_SHA224,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_SHA256,    "id-sha256",    "SHA-256"),
         MBEDTLS_MD_SHA256,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_SHA384,    "id-sha384",    "SHA-384"),
         MBEDTLS_MD_SHA384,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_SHA512,    "id-sha512",    "SHA-512"),
         MBEDTLS_MD_SHA512,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_RIPEMD160_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_DIGEST_ALG_RIPEMD160, "id-ripemd160", "RIPEMD-160"),
         MBEDTLS_MD_RIPEMD160,
@@ -734,36 +773,36 @@
 
 static const oid_md_hmac_t oid_md_hmac[] =
 {
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_HMAC_SHA1,      "hmacSHA1",      "HMAC-SHA-1"),
         MBEDTLS_MD_SHA1,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA224)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_HMAC_SHA224,    "hmacSHA224",    "HMAC-SHA-224"),
         MBEDTLS_MD_SHA224,
     },
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_HMAC_SHA256,    "hmacSHA256",    "HMAC-SHA-256"),
         MBEDTLS_MD_SHA256,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_HMAC_SHA384,    "hmacSHA384",    "HMAC-SHA-384"),
         MBEDTLS_MD_SHA384,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA512)
     {
         OID_DESCRIPTOR(MBEDTLS_OID_HMAC_SHA512,    "hmacSHA512",    "HMAC-SHA-512"),
         MBEDTLS_MD_SHA512,
     },
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_LOWLEVEL_OR_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA512 */
     {
         NULL_OID_DESCRIPTOR,
         MBEDTLS_MD_NONE,
@@ -813,65 +852,26 @@
                  cipher_alg)
 #endif /* MBEDTLS_PKCS12_C */
 
-#define OID_SAFE_SNPRINTF                               \
-    do {                                                \
-        if (ret < 0 || (size_t) ret >= n)              \
-        return MBEDTLS_ERR_OID_BUF_TOO_SMALL;    \
-                                                      \
-        n -= (size_t) ret;                              \
-        p += (size_t) ret;                              \
-    } while (0)
-
 /* Return the x.y.z.... style numeric string for the given OID */
 int mbedtls_oid_get_numeric_string(char *buf, size_t size,
                                    const mbedtls_asn1_buf *oid)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    size_t i, n;
-    unsigned int value;
-    char *p;
+    char *p = buf;
+    size_t n = size;
+    unsigned int value = 0;
 
-    p = buf;
-    n = size;
-
-    /* First subidentifier contains first two OID components */
-    i = 0;
-    value = 0;
-    if ((oid->p[0]) == 0x80) {
-        /* Overlong encoding is not allowed */
-        return MBEDTLS_ERR_ASN1_INVALID_DATA;
+    if (size > INT_MAX) {
+        /* Avoid overflow computing return value */
+        return MBEDTLS_ERR_ASN1_INVALID_LENGTH;
     }
 
-    while (i < oid->len && ((oid->p[i] & 0x80) != 0)) {
-        /* Prevent overflow in value. */
-        if (value > (UINT_MAX >> 7)) {
-            return MBEDTLS_ERR_ASN1_INVALID_DATA;
-        }
-
-        value |= oid->p[i] & 0x7F;
-        value <<= 7;
-        i++;
-    }
-    if (i >= oid->len) {
+    if (oid->len <= 0) {
+        /* OID must not be empty */
         return MBEDTLS_ERR_ASN1_OUT_OF_DATA;
     }
-    /* Last byte of first subidentifier */
-    value |= oid->p[i] & 0x7F;
-    i++;
 
-    unsigned int component1 = value / 40;
-    if (component1 > 2) {
-        /* The first component can only be 0, 1 or 2.
-         * If oid->p[0] / 40 is greater than 2, the leftover belongs to
-         * the second component. */
-        component1 = 2;
-    }
-    unsigned int component2 = value - (40 * component1);
-    ret = mbedtls_snprintf(p, n, "%u.%u", component1, component2);
-    OID_SAFE_SNPRINTF;
-
-    value = 0;
-    for (; i < oid->len; i++) {
+    for (size_t i = 0; i < oid->len; i++) {
         /* Prevent overflow in value. */
         if (value > (UINT_MAX >> 7)) {
             return MBEDTLS_ERR_ASN1_INVALID_DATA;
@@ -886,12 +886,38 @@
 
         if (!(oid->p[i] & 0x80)) {
             /* Last byte */
-            ret = mbedtls_snprintf(p, n, ".%u", value);
-            OID_SAFE_SNPRINTF;
+            if (n == size) {
+                int component1;
+                unsigned int component2;
+                /* First subidentifier contains first two OID components */
+                if (value >= 80) {
+                    component1 = '2';
+                    component2 = value - 80;
+                } else if (value >= 40) {
+                    component1 = '1';
+                    component2 = value - 40;
+                } else {
+                    component1 = '0';
+                    component2 = value;
+                }
+                ret = mbedtls_snprintf(p, n, "%c.%u", component1, component2);
+            } else {
+                ret = mbedtls_snprintf(p, n, ".%u", value);
+            }
+            if (ret < 2 || (size_t) ret >= n) {
+                return MBEDTLS_ERR_OID_BUF_TOO_SMALL;
+            }
+            n -= (size_t) ret;
+            p += ret;
             value = 0;
         }
     }
 
+    if (value != 0) {
+        /* Unterminated subidentifier */
+        return MBEDTLS_ERR_ASN1_OUT_OF_DATA;
+    }
+
     return (int) (size - n);
 }
 
diff --git a/library/pem.c b/library/pem.c
index 8044ed6..aed4788 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -25,7 +25,7 @@
 #include "mbedtls/base64.h"
 #include "mbedtls/des.h"
 #include "mbedtls/aes.h"
-#include "mbedtls/md5.h"
+#include "mbedtls/md.h"
 #include "mbedtls/cipher.h"
 #include "mbedtls/platform_util.h"
 #include "mbedtls/error.h"
@@ -39,13 +39,11 @@
 #include "psa/crypto.h"
 #endif
 
-#include "mbedtls/legacy_or_psa.h"
-
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA) &&  \
+#if defined(MBEDTLS_MD_CAN_MD5) &&  \
     defined(MBEDTLS_CIPHER_MODE_CBC) &&                             \
     (defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C))
 #define PEM_RFC1421
-#endif /* MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA &&
+#endif /* MBEDTLS_MD_CAN_MD5 &&
           MBEDTLS_CIPHER_MODE_CBC &&
           ( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
 
@@ -87,31 +85,37 @@
     return 0;
 }
 
-#if defined(MBEDTLS_MD5_C)
 static int pem_pbkdf1(unsigned char *key, size_t keylen,
                       unsigned char *iv,
                       const unsigned char *pwd, size_t pwdlen)
 {
-    mbedtls_md5_context md5_ctx;
+    mbedtls_md_context_t md5_ctx;
+    const mbedtls_md_info_t *md5_info;
     unsigned char md5sum[16];
     size_t use_len;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
-    mbedtls_md5_init(&md5_ctx);
+    mbedtls_md_init(&md5_ctx);
+
+    /* Prepare the context. (setup() errors gracefully on NULL info.) */
+    md5_info = mbedtls_md_info_from_type(MBEDTLS_MD_MD5);
+    if ((ret = mbedtls_md_setup(&md5_ctx, md5_info, 0)) != 0) {
+        goto exit;
+    }
 
     /*
      * key[ 0..15] = MD5(pwd || IV)
      */
-    if ((ret = mbedtls_md5_starts(&md5_ctx)) != 0) {
+    if ((ret = mbedtls_md_starts(&md5_ctx)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_update(&md5_ctx, pwd, pwdlen)) != 0) {
+    if ((ret = mbedtls_md_update(&md5_ctx, pwd, pwdlen)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_update(&md5_ctx, iv,  8)) != 0) {
+    if ((ret = mbedtls_md_update(&md5_ctx, iv,  8)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_finish(&md5_ctx, md5sum)) != 0) {
+    if ((ret = mbedtls_md_finish(&md5_ctx, md5sum)) != 0) {
         goto exit;
     }
 
@@ -125,19 +129,19 @@
     /*
      * key[16..23] = MD5(key[ 0..15] || pwd || IV])
      */
-    if ((ret = mbedtls_md5_starts(&md5_ctx)) != 0) {
+    if ((ret = mbedtls_md_starts(&md5_ctx)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_update(&md5_ctx, md5sum, 16)) != 0) {
+    if ((ret = mbedtls_md_update(&md5_ctx, md5sum, 16)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_update(&md5_ctx, pwd, pwdlen)) != 0) {
+    if ((ret = mbedtls_md_update(&md5_ctx, pwd, pwdlen)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_update(&md5_ctx, iv, 8)) != 0) {
+    if ((ret = mbedtls_md_update(&md5_ctx, iv, 8)) != 0) {
         goto exit;
     }
-    if ((ret = mbedtls_md5_finish(&md5_ctx, md5sum)) != 0) {
+    if ((ret = mbedtls_md_finish(&md5_ctx, md5sum)) != 0) {
         goto exit;
     }
 
@@ -149,96 +153,11 @@
     memcpy(key + 16, md5sum, use_len);
 
 exit:
-    mbedtls_md5_free(&md5_ctx);
+    mbedtls_md_free(&md5_ctx);
     mbedtls_platform_zeroize(md5sum, 16);
 
     return ret;
 }
-#else
-static int pem_pbkdf1(unsigned char *key, size_t keylen,
-                      unsigned char *iv,
-                      const unsigned char *pwd, size_t pwdlen)
-{
-    unsigned char md5sum[16];
-    psa_hash_operation_t operation = PSA_HASH_OPERATION_INIT;
-    size_t output_length = 0;
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-
-    if ((status = psa_hash_setup(&operation, PSA_ALG_MD5)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_update(&operation, pwd, pwdlen)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_update(&operation, iv, 8)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_finish(&operation, md5sum,
-                                  PSA_HASH_LENGTH(PSA_ALG_MD5),
-                                  &output_length)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_abort(&operation)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    /*
-     * key[ 0..15] = MD5(pwd || IV)
-     */
-    if (keylen <= 16) {
-        memcpy(key, md5sum, keylen);
-        goto exit;
-    }
-
-    memcpy(key, md5sum, 16);
-
-    /*
-     * key[16..23] = MD5(key[ 0..15] || pwd || IV])
-     */
-    if ((status = psa_hash_setup(&operation, PSA_ALG_MD5)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_update(&operation, md5sum, 16)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_update(&operation, pwd, pwdlen)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_update(&operation, iv, 8)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_finish(&operation, md5sum,
-                                  PSA_HASH_LENGTH(PSA_ALG_MD5),
-                                  &output_length)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if ((status = psa_hash_abort(&operation)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    size_t use_len = 16;
-    if (keylen < 32) {
-        use_len = keylen - 16;
-    }
-
-    memcpy(key + 16, md5sum, use_len);
-
-exit:
-    mbedtls_platform_zeroize(md5sum, 16);
-
-    return mbedtls_md_error_from_psa(status);
-}
-#endif /* MBEDTLS_MD5_C */
 
 #if defined(MBEDTLS_DES_C)
 /*
@@ -572,7 +491,7 @@
     size_t len = 0, use_len, add_len = 0;
 
     mbedtls_base64_encode(NULL, 0, &use_len, der_data, der_len);
-    add_len = strlen(header) + strlen(footer) + (use_len / 64) + 1;
+    add_len = strlen(header) + strlen(footer) + (((use_len > 2) ? (use_len - 2) : 0) / 64) + 1;
 
     if (use_len + add_len > buf_len) {
         *olen = use_len + add_len;
diff --git a/library/pk.c b/library/pk.c
index 05afdbc..ae1966b 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -32,7 +32,7 @@
 #if defined(MBEDTLS_RSA_C)
 #include "mbedtls/rsa.h"
 #endif
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 #include "mbedtls/ecp.h"
 #endif
 #if defined(MBEDTLS_ECDSA_C)
@@ -41,6 +41,13 @@
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)
 #include "mbedtls/psa_util.h"
+#define PSA_PK_TO_MBEDTLS_ERR(status) psa_pk_status_to_mbedtls(status)
+#define PSA_PK_RSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,     \
+                                                                  psa_to_pk_rsa_errors,            \
+                                                                  psa_pk_status_to_mbedtls)
+#define PSA_PK_ECDSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                                    psa_to_pk_ecdsa_errors,        \
+                                                                    psa_pk_status_to_mbedtls)
 #endif
 
 #include <limits.h>
@@ -107,17 +114,17 @@
 #if defined(MBEDTLS_RSA_C)
         case MBEDTLS_PK_RSA:
             return &mbedtls_rsa_info;
-#endif
-#if defined(MBEDTLS_ECP_C)
+#endif /* MBEDTLS_RSA_C */
+#if defined(MBEDTLS_ECP_LIGHT)
         case MBEDTLS_PK_ECKEY:
             return &mbedtls_eckey_info;
         case MBEDTLS_PK_ECKEY_DH:
             return &mbedtls_eckeydh_info;
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
 #if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
         case MBEDTLS_PK_ECDSA:
             return &mbedtls_ecdsa_info;
-#endif
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME */
         /* MBEDTLS_PK_RSA_ALT omitted on purpose */
         default:
             return NULL;
@@ -436,7 +443,7 @@
             return ret;
         }
 
-        ret = ctx->pk_info->verify_rs_func(ctx->pk_ctx,
+        ret = ctx->pk_info->verify_rs_func(ctx,
                                            md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx);
 
         if (ret != MBEDTLS_ERR_ECP_IN_PROGRESS) {
@@ -453,7 +460,7 @@
         return MBEDTLS_ERR_PK_TYPE_MISMATCH;
     }
 
-    return ctx->pk_info->verify_func(ctx->pk_ctx, md_alg, hash, hash_len,
+    return ctx->pk_info->verify_func(ctx, md_alg, hash, hash_len,
                                      sig, sig_len);
 }
 
@@ -540,7 +547,7 @@
                                 &key_id);
         if (status != PSA_SUCCESS) {
             psa_destroy_key(key_id);
-            return mbedtls_pk_error_from_psa(status);
+            return PSA_PK_TO_MBEDTLS_ERR(status);
         }
 
         /* This function requires returning MBEDTLS_ERR_PK_SIG_LEN_MISMATCH
@@ -562,7 +569,7 @@
             status = destruction_status;
         }
 
-        return mbedtls_pk_error_from_psa_rsa(status);
+        return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
     } else
 #endif
     {
@@ -619,7 +626,7 @@
             return ret;
         }
 
-        ret = ctx->pk_info->sign_rs_func(ctx->pk_ctx, md_alg,
+        ret = ctx->pk_info->sign_rs_func(ctx, md_alg,
                                          hash, hash_len,
                                          sig, sig_size, sig_len,
                                          f_rng, p_rng, rs_ctx->rs_ctx);
@@ -638,7 +645,7 @@
         return MBEDTLS_ERR_PK_TYPE_MISMATCH;
     }
 
-    return ctx->pk_info->sign_func(ctx->pk_ctx, md_alg,
+    return ctx->pk_info->sign_func(ctx, md_alg,
                                    hash, hash_len,
                                    sig, sig_size, sig_len,
                                    f_rng, p_rng);
@@ -700,7 +707,7 @@
         status = psa_sign_hash(*key, PSA_ALG_RSA_PSS(psa_md_alg),
                                hash, hash_len,
                                sig, sig_size, sig_len);
-        return mbedtls_pk_error_from_psa_rsa(status);
+        return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
     }
 
     return mbedtls_pk_psa_rsa_sign_ext(PSA_ALG_RSA_PSS(psa_md_alg),
@@ -729,7 +736,7 @@
         return MBEDTLS_ERR_PK_TYPE_MISMATCH;
     }
 
-    return ctx->pk_info->decrypt_func(ctx->pk_ctx, input, ilen,
+    return ctx->pk_info->decrypt_func(ctx, input, ilen,
                                       output, olen, osize, f_rng, p_rng);
 }
 
@@ -749,7 +756,7 @@
         return MBEDTLS_ERR_PK_TYPE_MISMATCH;
     }
 
-    return ctx->pk_info->encrypt_func(ctx->pk_ctx, input, ilen,
+    return ctx->pk_info->encrypt_func(ctx, input, ilen,
                                       output, olen, osize, f_rng, p_rng);
 }
 
@@ -784,7 +791,9 @@
         }
     }
 
-    return prv->pk_info->check_pair_func(pub->pk_ctx, prv->pk_ctx, f_rng, p_rng);
+    return prv->pk_info->check_pair_func((mbedtls_pk_context *) pub,
+                                         (mbedtls_pk_context *) prv,
+                                         f_rng, p_rng);
 }
 
 /*
@@ -798,7 +807,7 @@
         return 0;
     }
 
-    return ctx->pk_info->get_bitlen(ctx->pk_ctx);
+    return ctx->pk_info->get_bitlen((mbedtls_pk_context *) ctx);
 }
 
 /*
@@ -814,7 +823,7 @@
         return MBEDTLS_ERR_PK_TYPE_MISMATCH;
     }
 
-    ctx->pk_info->debug_func(ctx->pk_ctx, items);
+    ctx->pk_info->debug_func((mbedtls_pk_context *) ctx, items);
     return 0;
 }
 
@@ -855,16 +864,16 @@
                               psa_key_usage_t usage,
                               psa_algorithm_t alg2)
 {
-#if !defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_RSA_C)
+#if !defined(MBEDTLS_ECP_LIGHT) && !defined(MBEDTLS_RSA_C)
     ((void) pk);
     ((void) key);
     ((void) alg);
     ((void) usage);
     ((void) alg2);
-#else
-#if defined(MBEDTLS_ECP_C)
+#else /* !MBEDTLS_ECP_LIGHT && !MBEDTLS_RSA_C */
+#if defined(MBEDTLS_ECP_LIGHT)
     if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECKEY) {
-        const mbedtls_ecp_keypair *ec;
+        mbedtls_ecp_keypair *ec;
         unsigned char d[MBEDTLS_ECP_MAX_BYTES];
         size_t d_len;
         psa_ecc_family_t curve_id;
@@ -877,7 +886,7 @@
         /* export the private key material in the format PSA wants */
         ec = mbedtls_pk_ec(*pk);
         d_len = PSA_BITS_TO_BYTES(ec->grp.nbits);
-        if ((ret = mbedtls_mpi_write_binary(&ec->d, d, d_len)) != 0) {
+        if ((ret = mbedtls_ecp_write_key(ec, d, d_len)) != 0) {
             return ret;
         }
 
@@ -895,8 +904,9 @@
 
         /* import private key into PSA */
         status = psa_import_key(&attributes, d, d_len, key);
+        mbedtls_platform_zeroize(d, sizeof(d));
         if (status != PSA_SUCCESS) {
-            return mbedtls_pk_error_from_psa(status);
+            return PSA_PK_TO_MBEDTLS_ERR(status);
         }
 
         /* make PK context wrap the key slot */
@@ -905,7 +915,7 @@
 
         return mbedtls_pk_setup_opaque(pk, *key);
     } else
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 #if defined(MBEDTLS_RSA_C)
     if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_RSA) {
         unsigned char buf[MBEDTLS_PK_RSA_PRV_DER_MAX_BYTES];
@@ -936,7 +946,7 @@
         mbedtls_platform_zeroize(buf, sizeof(buf));
 
         if (status != PSA_SUCCESS) {
-            return mbedtls_pk_error_from_psa(status);
+            return PSA_PK_TO_MBEDTLS_ERR(status);
         }
 
         /* make PK context wrap the key slot */
@@ -946,7 +956,7 @@
         return mbedtls_pk_setup_opaque(pk, *key);
     } else
 #endif /* MBEDTLS_RSA_C */
-#endif /* !MBEDTLS_ECP_C && !MBEDTLS_RSA_C */
+#endif /* !MBEDTLS_ECP_LIGHT && !MBEDTLS_RSA_C */
     return MBEDTLS_ERR_PK_TYPE_MISMATCH;
 }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index 45cf807..6c9f97b 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -40,9 +40,19 @@
 #include "pkwrite.h"
 #endif
 
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+#include "mbedtls/psa_util.h"
+#define PSA_PK_TO_MBEDTLS_ERR(status) psa_pk_status_to_mbedtls(status)
+#define PSA_PK_RSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,     \
+                                                                  psa_to_pk_rsa_errors,            \
+                                                                  psa_pk_status_to_mbedtls)
+#define PSA_PK_ECDSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                                    psa_to_pk_ecdsa_errors,        \
+                                                                    psa_pk_status_to_mbedtls)
+#endif
+
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
 #include "hash_info.h"
 
 #if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
@@ -57,6 +67,7 @@
 #include <stdint.h>
 #include <string.h>
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 #if defined(MBEDTLS_PSA_CRYPTO_C)
 int mbedtls_pk_error_from_psa(psa_status_t status)
 {
@@ -108,16 +119,31 @@
             return MBEDTLS_ERR_RSA_VERIFY_FAILED;
         case PSA_ERROR_INVALID_PADDING:
             return MBEDTLS_ERR_RSA_INVALID_PADDING;
+        case PSA_SUCCESS:
+            return 0;
+        case PSA_ERROR_NOT_SUPPORTED:
+            return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+        case PSA_ERROR_INSUFFICIENT_MEMORY:
+            return MBEDTLS_ERR_PK_ALLOC_FAILED;
+        case PSA_ERROR_BAD_STATE:
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        case PSA_ERROR_COMMUNICATION_FAILURE:
+        case PSA_ERROR_HARDWARE_FAILURE:
+            return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
+        case PSA_ERROR_DATA_CORRUPT:
+        case PSA_ERROR_DATA_INVALID:
+        case PSA_ERROR_STORAGE_FAILURE:
+            return MBEDTLS_ERR_PK_FILE_IO_ERROR;
+        case PSA_ERROR_CORRUPTION_DETECTED:
+            return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         default:
-            return mbedtls_pk_error_from_psa(status);
+            return MBEDTLS_ERR_ERROR_GENERIC_ERROR;
     }
 }
 #endif /* PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY || PSA_WANT_KEY_TYPE_RSA_KEY_PAIR */
-
 #endif /* MBEDTLS_PSA_CRYPTO_C */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-
 #if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
 int mbedtls_pk_error_from_psa_ecdsa(psa_status_t status)
 {
@@ -133,13 +159,30 @@
             return MBEDTLS_ERR_ECP_RANDOM_FAILED;
         case PSA_ERROR_INVALID_SIGNATURE:
             return MBEDTLS_ERR_ECP_VERIFY_FAILED;
+        case PSA_SUCCESS:
+            return 0;
+        case PSA_ERROR_NOT_SUPPORTED:
+            return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+        case PSA_ERROR_INSUFFICIENT_MEMORY:
+            return MBEDTLS_ERR_PK_ALLOC_FAILED;
+        case PSA_ERROR_BAD_STATE:
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        case PSA_ERROR_COMMUNICATION_FAILURE:
+        case PSA_ERROR_HARDWARE_FAILURE:
+            return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
+        case PSA_ERROR_DATA_CORRUPT:
+        case PSA_ERROR_DATA_INVALID:
+        case PSA_ERROR_STORAGE_FAILURE:
+            return MBEDTLS_ERR_PK_FILE_IO_ERROR;
+        case PSA_ERROR_CORRUPTION_DETECTED:
+            return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         default:
-            return mbedtls_pk_error_from_psa(status);
+            return MBEDTLS_ERR_ERROR_GENERIC_ERROR;
     }
 }
 #endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
-
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 #if defined(MBEDTLS_RSA_C)
 static int rsa_can_do(mbedtls_pk_type_t type)
@@ -148,18 +191,18 @@
            type == MBEDTLS_PK_RSASSA_PSS;
 }
 
-static size_t rsa_get_bitlen(const void *ctx)
+static size_t rsa_get_bitlen(mbedtls_pk_context *pk)
 {
-    const mbedtls_rsa_context *rsa = (const mbedtls_rsa_context *) ctx;
+    const mbedtls_rsa_context *rsa = (const mbedtls_rsa_context *) pk->pk_ctx;
     return 8 * mbedtls_rsa_get_len(rsa);
 }
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int rsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int rsa_verify_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                            const unsigned char *hash, size_t hash_len,
                            const unsigned char *sig, size_t sig_len)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
@@ -182,7 +225,7 @@
     /* mbedtls_pk_write_pubkey_der() expects a full PK context;
      * re-construct one to make it happy */
     key.pk_info = &mbedtls_rsa_info;
-    key.pk_ctx = ctx;
+    key.pk_ctx = rsa;
     key_len = mbedtls_pk_write_pubkey_der(&key, buf, sizeof(buf));
     if (key_len <= 0) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
@@ -196,14 +239,14 @@
                             buf + sizeof(buf) - key_len, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
     status = psa_verify_hash(key_id, psa_alg_md, hash, hash_len,
                              sig, sig_len);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_rsa(status);
+        ret = PSA_PK_RSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
     ret = 0;
@@ -211,18 +254,18 @@
 cleanup:
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     return ret;
 }
 #else
-static int rsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int rsa_verify_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                            const unsigned char *hash, size_t hash_len,
                            const unsigned char *sig, size_t sig_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
     size_t rsa_len = mbedtls_rsa_get_len(rsa);
 
     if (md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len) {
@@ -289,13 +332,13 @@
                             buf + sizeof(buf) - key_len, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
     status = psa_sign_hash(key_id, alg, hash, hash_len,
                            sig, sig_size, sig_len);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_rsa(status);
+        ret = PSA_PK_RSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -304,14 +347,14 @@
 cleanup:
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
     return ret;
 }
 #endif /* MBEDTLS_PSA_CRYPTO_C */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int rsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int rsa_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                          const unsigned char *hash, size_t hash_len,
                          unsigned char *sig, size_t sig_size, size_t *sig_len,
                          int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
@@ -327,16 +370,16 @@
 
     return mbedtls_pk_psa_rsa_sign_ext(PSA_ALG_RSA_PKCS1V15_SIGN(
                                            psa_md_alg),
-                                       ctx, hash, hash_len,
+                                       pk->pk_ctx, hash, hash_len,
                                        sig, sig_size, sig_len);
 }
 #else
-static int rsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int rsa_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                          const unsigned char *hash, size_t hash_len,
                          unsigned char *sig, size_t sig_size, size_t *sig_len,
                          int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
 
     if (md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
@@ -354,12 +397,12 @@
 #endif
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int rsa_decrypt_wrap(void *ctx,
+static int rsa_decrypt_wrap(mbedtls_pk_context *pk,
                             const unsigned char *input, size_t ilen,
                             unsigned char *output, size_t *olen, size_t osize,
                             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
@@ -384,7 +427,7 @@
     /* mbedtls_pk_write_key_der() expects a full PK context;
      * re-construct one to make it happy */
     key.pk_info = &mbedtls_rsa_info;
-    key.pk_ctx = ctx;
+    key.pk_ctx = rsa;
     key_len = mbedtls_pk_write_key_der(&key, buf, sizeof(buf));
     if (key_len <= 0) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
@@ -398,7 +441,7 @@
                             buf + sizeof(buf) - key_len, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -407,7 +450,7 @@
                                     NULL, 0,
                                     output, osize, olen);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_rsa(status);
+        ret = PSA_PK_RSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -417,18 +460,18 @@
     mbedtls_platform_zeroize(buf, sizeof(buf));
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     return ret;
 }
 #else
-static int rsa_decrypt_wrap(void *ctx,
+static int rsa_decrypt_wrap(mbedtls_pk_context *pk,
                             const unsigned char *input, size_t ilen,
                             unsigned char *output, size_t *olen, size_t osize,
                             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
 
     if (ilen != mbedtls_rsa_get_len(rsa)) {
         return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
@@ -440,12 +483,12 @@
 #endif
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-static int rsa_encrypt_wrap(void *ctx,
+static int rsa_encrypt_wrap(mbedtls_pk_context *pk,
                             const unsigned char *input, size_t ilen,
                             unsigned char *output, size_t *olen, size_t osize,
                             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
@@ -470,7 +513,7 @@
     /* mbedtls_pk_write_pubkey_der() expects a full PK context;
      * re-construct one to make it happy */
     key.pk_info = &mbedtls_rsa_info;
-    key.pk_ctx = ctx;
+    key.pk_ctx = rsa;
     key_len = mbedtls_pk_write_pubkey_der(&key, buf, sizeof(buf));
     if (key_len <= 0) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
@@ -484,7 +527,7 @@
                             buf + sizeof(buf) - key_len, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -493,7 +536,7 @@
                                     NULL, 0,
                                     output, osize, olen);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_rsa(status);
+        ret = PSA_PK_RSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -502,18 +545,18 @@
 cleanup:
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     return ret;
 }
 #else
-static int rsa_encrypt_wrap(void *ctx,
+static int rsa_encrypt_wrap(mbedtls_pk_context *pk,
                             const unsigned char *input, size_t ilen,
                             unsigned char *output, size_t *olen, size_t osize,
                             int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) ctx;
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
     *olen = mbedtls_rsa_get_len(rsa);
 
     if (*olen > osize) {
@@ -525,14 +568,14 @@
 }
 #endif
 
-static int rsa_check_pair_wrap(const void *pub, const void *prv,
+static int rsa_check_pair_wrap(mbedtls_pk_context *pub, mbedtls_pk_context *prv,
                                int (*f_rng)(void *, unsigned char *, size_t),
                                void *p_rng)
 {
     (void) f_rng;
     (void) p_rng;
-    return mbedtls_rsa_check_pub_priv((const mbedtls_rsa_context *) pub,
-                                      (const mbedtls_rsa_context *) prv);
+    return mbedtls_rsa_check_pub_priv((const mbedtls_rsa_context *) pub->pk_ctx,
+                                      (const mbedtls_rsa_context *) prv->pk_ctx);
 }
 
 static void *rsa_alloc_wrap(void)
@@ -552,22 +595,24 @@
     mbedtls_free(ctx);
 }
 
-static void rsa_debug(const void *ctx, mbedtls_pk_debug_item *items)
+static void rsa_debug(mbedtls_pk_context *pk, mbedtls_pk_debug_item *items)
 {
 #if defined(MBEDTLS_RSA_ALT)
     /* Not supported */
-    (void) ctx;
+    (void) pk;
     (void) items;
 #else
+    mbedtls_rsa_context *rsa = (mbedtls_rsa_context *) pk->pk_ctx;
+
     items->type = MBEDTLS_PK_DEBUG_MPI;
     items->name = "rsa.N";
-    items->value = &(((mbedtls_rsa_context *) ctx)->N);
+    items->value = &(rsa->N);
 
     items++;
 
     items->type = MBEDTLS_PK_DEBUG_MPI;
     items->name = "rsa.E";
-    items->value = &(((mbedtls_rsa_context *) ctx)->E);
+    items->value = &(rsa->E);
 #endif
 }
 
@@ -595,7 +640,7 @@
 };
 #endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /*
  * Generic EC key
  */
@@ -606,9 +651,10 @@
            type == MBEDTLS_PK_ECDSA;
 }
 
-static size_t eckey_get_bitlen(const void *ctx)
+static size_t eckey_get_bitlen(mbedtls_pk_context *pk)
 {
-    return ((mbedtls_ecp_keypair *) ctx)->grp.pbits;
+    mbedtls_ecp_keypair *ecp = (mbedtls_ecp_keypair *) pk->pk_ctx;
+    return ecp->grp.pbits;
 }
 
 #if defined(MBEDTLS_PK_CAN_ECDSA_VERIFY)
@@ -673,11 +719,12 @@
     return 0;
 }
 
-static int ecdsa_verify_wrap(void *ctx_arg, mbedtls_md_type_t md_alg,
+static int ecdsa_verify_wrap(mbedtls_pk_context *pk,
+                             mbedtls_md_type_t md_alg,
                              const unsigned char *hash, size_t hash_len,
                              const unsigned char *sig, size_t sig_len)
 {
-    mbedtls_ecp_keypair *ctx = ctx_arg;
+    mbedtls_ecp_keypair *ctx = pk->pk_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
@@ -716,7 +763,7 @@
                             buf, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -737,7 +784,7 @@
                              hash, hash_len,
                              buf, 2 * signature_part_size);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_ecdsa(status);
+        ret = PSA_PK_ECDSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -750,20 +797,20 @@
 cleanup:
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     return ret;
 }
 #else /* MBEDTLS_USE_PSA_CRYPTO */
-static int ecdsa_verify_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_verify_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                              const unsigned char *hash, size_t hash_len,
                              const unsigned char *sig, size_t sig_len)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     ((void) md_alg);
 
-    ret = mbedtls_ecdsa_read_signature((mbedtls_ecdsa_context *) ctx,
+    ret = mbedtls_ecdsa_read_signature((mbedtls_ecdsa_context *) pk->pk_ctx,
                                        hash, hash_len, sig, sig_len);
 
     if (ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) {
@@ -861,12 +908,12 @@
     return 0;
 }
 
-static int ecdsa_sign_wrap(void *ctx_arg, mbedtls_md_type_t md_alg,
+static int ecdsa_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                            const unsigned char *hash, size_t hash_len,
                            unsigned char *sig, size_t sig_size, size_t *sig_len,
                            int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_ecp_keypair *ctx = ctx_arg;
+    mbedtls_ecp_keypair *ctx = pk->pk_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
@@ -908,14 +955,14 @@
                             buf, key_len,
                             &key_id);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
     status = psa_sign_hash(key_id, psa_sig_md, hash, hash_len,
                            sig, sig_size, sig_len);
     if (status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa_ecdsa(status);
+        ret = PSA_PK_ECDSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 
@@ -925,18 +972,18 @@
     mbedtls_platform_zeroize(buf, sizeof(buf));
     status = psa_destroy_key(key_id);
     if (ret == 0 && status != PSA_SUCCESS) {
-        ret = mbedtls_pk_error_from_psa(status);
+        ret = PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     return ret;
 }
 #else /* MBEDTLS_USE_PSA_CRYPTO */
-static int ecdsa_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                            const unsigned char *hash, size_t hash_len,
                            unsigned char *sig, size_t sig_size, size_t *sig_len,
                            int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    return mbedtls_ecdsa_write_signature((mbedtls_ecdsa_context *) ctx,
+    return mbedtls_ecdsa_write_signature((mbedtls_ecdsa_context *) pk->pk_ctx,
                                          md_alg, hash, hash_len,
                                          sig, sig_size, sig_len,
                                          f_rng, p_rng);
@@ -946,12 +993,12 @@
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
 /* Forward declarations */
-static int ecdsa_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_verify_rs_wrap(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
                                 const unsigned char *hash, size_t hash_len,
                                 const unsigned char *sig, size_t sig_len,
                                 void *rs_ctx);
 
-static int ecdsa_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_sign_rs_wrap(mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
                               const unsigned char *hash, size_t hash_len,
                               unsigned char *sig, size_t sig_size, size_t *sig_len,
                               int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
@@ -998,7 +1045,7 @@
     mbedtls_free(ctx);
 }
 
-static int eckey_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int eckey_verify_rs_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                                 const unsigned char *hash, size_t hash_len,
                                 const unsigned char *sig, size_t sig_len,
                                 void *rs_ctx)
@@ -1013,10 +1060,10 @@
 
     /* set up our own sub-context if needed (that is, on first run) */
     if (rs->ecdsa_ctx.grp.pbits == 0) {
-        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, ctx));
+        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, pk->pk_ctx));
     }
 
-    MBEDTLS_MPI_CHK(ecdsa_verify_rs_wrap(&rs->ecdsa_ctx,
+    MBEDTLS_MPI_CHK(ecdsa_verify_rs_wrap(pk,
                                          md_alg, hash, hash_len,
                                          sig, sig_len, &rs->ecdsa_rs));
 
@@ -1024,7 +1071,7 @@
     return ret;
 }
 
-static int eckey_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int eckey_sign_rs_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                               const unsigned char *hash, size_t hash_len,
                               unsigned char *sig, size_t sig_size, size_t *sig_len,
                               int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
@@ -1040,10 +1087,10 @@
 
     /* set up our own sub-context if needed (that is, on first run) */
     if (rs->ecdsa_ctx.grp.pbits == 0) {
-        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, ctx));
+        MBEDTLS_MPI_CHK(mbedtls_ecdsa_from_keypair(&rs->ecdsa_ctx, pk->pk_ctx));
     }
 
-    MBEDTLS_MPI_CHK(ecdsa_sign_rs_wrap(&rs->ecdsa_ctx, md_alg,
+    MBEDTLS_MPI_CHK(ecdsa_sign_rs_wrap(pk, md_alg,
                                        hash, hash_len, sig, sig_size, sig_len,
                                        f_rng, p_rng, &rs->ecdsa_rs));
 
@@ -1052,13 +1099,92 @@
 }
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
-static int eckey_check_pair(const void *pub, const void *prv,
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+/*
+ * Alternative function used to verify that the EC private/public key pair
+ * is valid using PSA functions instead of ECP ones.
+ * The flow is:
+ * - import the private key "prv" to PSA and export its public part
+ * - write the raw content of public key "pub" to a local buffer
+ * - compare the two buffers
+ */
+static int eckey_check_pair_psa(mbedtls_pk_context *pub, mbedtls_pk_context *prv)
+{
+    psa_status_t status, destruction_status;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+    mbedtls_ecp_keypair *prv_ctx = prv->pk_ctx;
+    mbedtls_ecp_keypair *pub_ctx = pub->pk_ctx;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    /* We are using MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH for the size of this
+     * buffer because it will be used to hold the private key at first and
+     * then its public part (but not at the same time). */
+    uint8_t prv_key_buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
+    size_t prv_key_len;
+    uint8_t pub_key_buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
+    size_t pub_key_len;
+    mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    size_t curve_bits;
+    const psa_ecc_family_t curve =
+        mbedtls_ecc_group_to_psa(prv_ctx->grp.id, &curve_bits);
+    const size_t curve_bytes = PSA_BITS_TO_BYTES(curve_bits);
+
+    psa_set_key_type(&key_attr, PSA_KEY_TYPE_ECC_KEY_PAIR(curve));
+    psa_set_key_usage_flags(&key_attr, PSA_KEY_USAGE_EXPORT);
+
+    ret = mbedtls_mpi_write_binary(&prv_ctx->d, prv_key_buf, curve_bytes);
+    if (ret != 0) {
+        return ret;
+    }
+
+    status = psa_import_key(&key_attr, prv_key_buf, curve_bytes, &key_id);
+    ret = PSA_PK_TO_MBEDTLS_ERR(status);
+    if (ret != 0) {
+        return ret;
+    }
+
+    mbedtls_platform_zeroize(prv_key_buf, sizeof(prv_key_buf));
+
+    status = psa_export_public_key(key_id, prv_key_buf, sizeof(prv_key_buf),
+                                   &prv_key_len);
+    ret = PSA_PK_TO_MBEDTLS_ERR(status);
+    destruction_status = psa_destroy_key(key_id);
+    if (ret != 0) {
+        return ret;
+    } else if (destruction_status != PSA_SUCCESS) {
+        return PSA_PK_TO_MBEDTLS_ERR(destruction_status);
+    }
+
+    ret = mbedtls_ecp_point_write_binary(&pub_ctx->grp, &pub_ctx->Q,
+                                         MBEDTLS_ECP_PF_UNCOMPRESSED,
+                                         &pub_key_len, pub_key_buf,
+                                         sizeof(pub_key_buf));
+    if (ret != 0) {
+        return ret;
+    }
+
+    if (memcmp(prv_key_buf, pub_key_buf, curve_bytes) != 0) {
+        return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+    }
+
+    return 0;
+}
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+
+static int eckey_check_pair(mbedtls_pk_context *pub, mbedtls_pk_context *prv,
                             int (*f_rng)(void *, unsigned char *, size_t),
                             void *p_rng)
 {
-    return mbedtls_ecp_check_pub_priv((const mbedtls_ecp_keypair *) pub,
-                                      (const mbedtls_ecp_keypair *) prv,
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    (void) f_rng;
+    (void) p_rng;
+    return eckey_check_pair_psa(pub, prv);
+#elif defined(MBEDTLS_ECP_C)
+    return mbedtls_ecp_check_pub_priv((const mbedtls_ecp_keypair *) pub->pk_ctx,
+                                      (const mbedtls_ecp_keypair *) prv->pk_ctx,
                                       f_rng, p_rng);
+#else
+    return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+#endif
 }
 
 static void *eckey_alloc_wrap(void)
@@ -1078,11 +1204,12 @@
     mbedtls_free(ctx);
 }
 
-static void eckey_debug(const void *ctx, mbedtls_pk_debug_item *items)
+static void eckey_debug(mbedtls_pk_context *pk, mbedtls_pk_debug_item *items)
 {
+    mbedtls_ecp_keypair *ecp = (mbedtls_ecp_keypair *) pk->pk_ctx;
     items->type = MBEDTLS_PK_DEBUG_ECP;
     items->name = "eckey.Q";
-    items->value = &(((mbedtls_ecp_keypair *) ctx)->Q);
+    items->value = &(ecp->Q);
 }
 
 const mbedtls_pk_info_t mbedtls_eckey_info = {
@@ -1147,7 +1274,7 @@
 #endif
     eckey_debug,            /* Same underlying key structure */
 };
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
 static int ecdsa_can_do(mbedtls_pk_type_t type)
@@ -1156,7 +1283,7 @@
 }
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
-static int ecdsa_verify_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_verify_rs_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                                 const unsigned char *hash, size_t hash_len,
                                 const unsigned char *sig, size_t sig_len,
                                 void *rs_ctx)
@@ -1165,7 +1292,7 @@
     ((void) md_alg);
 
     ret = mbedtls_ecdsa_read_signature_restartable(
-        (mbedtls_ecdsa_context *) ctx,
+        (mbedtls_ecdsa_context *) pk->pk_ctx,
         hash, hash_len, sig, sig_len,
         (mbedtls_ecdsa_restart_ctx *) rs_ctx);
 
@@ -1176,14 +1303,14 @@
     return ret;
 }
 
-static int ecdsa_sign_rs_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int ecdsa_sign_rs_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                               const unsigned char *hash, size_t hash_len,
                               unsigned char *sig, size_t sig_size, size_t *sig_len,
                               int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
                               void *rs_ctx)
 {
     return mbedtls_ecdsa_write_signature_restartable(
-        (mbedtls_ecdsa_context *) ctx,
+        (mbedtls_ecdsa_context *) pk->pk_ctx,
         md_alg, hash, hash_len, sig, sig_size, sig_len, f_rng, p_rng,
         (mbedtls_ecdsa_restart_ctx *) rs_ctx);
 
@@ -1249,19 +1376,19 @@
     return type == MBEDTLS_PK_RSA;
 }
 
-static size_t rsa_alt_get_bitlen(const void *ctx)
+static size_t rsa_alt_get_bitlen(mbedtls_pk_context *pk)
 {
-    const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx;
+    const mbedtls_rsa_alt_context *rsa_alt = pk->pk_ctx;
 
     return 8 * rsa_alt->key_len_func(rsa_alt->key);
 }
 
-static int rsa_alt_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int rsa_alt_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                              const unsigned char *hash, size_t hash_len,
                              unsigned char *sig, size_t sig_size, size_t *sig_len,
                              int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
+    mbedtls_rsa_alt_context *rsa_alt = pk->pk_ctx;
 
     if (UINT_MAX < hash_len) {
         return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
@@ -1279,12 +1406,12 @@
                               md_alg, (unsigned int) hash_len, hash, sig);
 }
 
-static int rsa_alt_decrypt_wrap(void *ctx,
+static int rsa_alt_decrypt_wrap(mbedtls_pk_context *pk,
                                 const unsigned char *input, size_t ilen,
                                 unsigned char *output, size_t *olen, size_t osize,
                                 int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
+    mbedtls_rsa_alt_context *rsa_alt = pk->pk_ctx;
 
     ((void) f_rng);
     ((void) p_rng);
@@ -1298,7 +1425,7 @@
 }
 
 #if defined(MBEDTLS_RSA_C)
-static int rsa_alt_check_pair(const void *pub, const void *prv,
+static int rsa_alt_check_pair(mbedtls_pk_context *pub, mbedtls_pk_context *prv,
                               int (*f_rng)(void *, unsigned char *, size_t),
                               void *p_rng)
 {
@@ -1313,14 +1440,14 @@
 
     memset(hash, 0x2a, sizeof(hash));
 
-    if ((ret = rsa_alt_sign_wrap((void *) prv, MBEDTLS_MD_NONE,
+    if ((ret = rsa_alt_sign_wrap(prv, MBEDTLS_MD_NONE,
                                  hash, sizeof(hash),
                                  sig, sizeof(sig), &sig_len,
                                  f_rng, p_rng)) != 0) {
         return ret;
     }
 
-    if (rsa_verify_wrap((void *) pub, MBEDTLS_MD_NONE,
+    if (rsa_verify_wrap(pub, MBEDTLS_MD_NONE,
                         hash, sizeof(hash), sig, sig_len) != 0) {
         return MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
     }
@@ -1392,9 +1519,9 @@
     mbedtls_free(ctx);
 }
 
-static size_t pk_opaque_get_bitlen(const void *ctx)
+static size_t pk_opaque_get_bitlen(mbedtls_pk_context *pk)
 {
-    const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx;
+    const mbedtls_svc_key_id_t *key = pk->pk_ctx;
     size_t bits;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 
@@ -1419,13 +1546,13 @@
            type == MBEDTLS_PK_RSASSA_PSS;
 }
 
-static int pk_opaque_sign_wrap(void *ctx, mbedtls_md_type_t md_alg,
+static int pk_opaque_sign_wrap(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                                const unsigned char *hash, size_t hash_len,
                                unsigned char *sig, size_t sig_size, size_t *sig_len,
                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
 #if !defined(MBEDTLS_PK_CAN_ECDSA_SIGN) && !defined(MBEDTLS_RSA_C)
-    ((void) ctx);
+    ((void) pk);
     ((void) md_alg);
     ((void) hash);
     ((void) hash_len);
@@ -1436,7 +1563,7 @@
     ((void) p_rng);
     return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
 #else /* !MBEDTLS_PK_CAN_ECDSA_SIGN && !MBEDTLS_RSA_C */
-    const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx;
+    const mbedtls_svc_key_id_t *key = pk->pk_ctx;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     psa_algorithm_t alg;
     psa_key_type_t type;
@@ -1448,7 +1575,7 @@
 
     status = psa_get_key_attributes(*key, &attributes);
     if (status != PSA_SUCCESS) {
-        return mbedtls_pk_error_from_psa(status);
+        return PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
     type = psa_get_key_type(&attributes);
@@ -1472,15 +1599,15 @@
     if (status != PSA_SUCCESS) {
 #if defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
         if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(type)) {
-            return mbedtls_pk_error_from_psa_ecdsa(status);
+            return PSA_PK_ECDSA_TO_MBEDTLS_ERR(status);
         } else
 #endif /* MBEDTLS_PK_CAN_ECDSA_SIGN */
 #if defined(MBEDTLS_RSA_C)
         if (PSA_KEY_TYPE_IS_RSA(type)) {
-            return mbedtls_pk_error_from_psa_rsa(status);
+            return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
         } else
 #endif /* MBEDTLS_RSA_C */
-        return mbedtls_pk_error_from_psa(status);
+        return PSA_PK_TO_MBEDTLS_ERR(status);
     }
 
 #if defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
@@ -1518,12 +1645,12 @@
 };
 
 #if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
-static int pk_opaque_rsa_decrypt(void *ctx,
+static int pk_opaque_rsa_decrypt(mbedtls_pk_context *pk,
                                  const unsigned char *input, size_t ilen,
                                  unsigned char *output, size_t *olen, size_t osize,
                                  int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
 {
-    const mbedtls_svc_key_id_t *key = (const mbedtls_svc_key_id_t *) ctx;
+    const mbedtls_svc_key_id_t *key = pk->pk_ctx;
     psa_status_t status;
 
     /* PSA has its own RNG */
@@ -1535,7 +1662,7 @@
                                     NULL, 0,
                                     output, osize, olen);
     if (status != PSA_SUCCESS) {
-        return mbedtls_pk_error_from_psa_rsa(status);
+        return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
     }
 
     return 0;
diff --git a/library/pk_wrap.h b/library/pk_wrap.h
index 7df9608..91d240c 100644
--- a/library/pk_wrap.h
+++ b/library/pk_wrap.h
@@ -39,18 +39,18 @@
     const char *name;
 
     /** Get key size in bits */
-    size_t (*get_bitlen)(const void *);
+    size_t (*get_bitlen)(mbedtls_pk_context *pk);
 
     /** Tell if the context implements this type (e.g. ECKEY can do ECDSA) */
     int (*can_do)(mbedtls_pk_type_t type);
 
     /** Verify signature */
-    int (*verify_func)(void *ctx, mbedtls_md_type_t md_alg,
+    int (*verify_func)(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                        const unsigned char *hash, size_t hash_len,
                        const unsigned char *sig, size_t sig_len);
 
     /** Make signature */
-    int (*sign_func)(void *ctx, mbedtls_md_type_t md_alg,
+    int (*sign_func)(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                      const unsigned char *hash, size_t hash_len,
                      unsigned char *sig, size_t sig_size, size_t *sig_len,
                      int (*f_rng)(void *, unsigned char *, size_t),
@@ -58,13 +58,13 @@
 
 #if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
     /** Verify signature (restartable) */
-    int (*verify_rs_func)(void *ctx, mbedtls_md_type_t md_alg,
+    int (*verify_rs_func)(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                           const unsigned char *hash, size_t hash_len,
                           const unsigned char *sig, size_t sig_len,
                           void *rs_ctx);
 
     /** Make signature (restartable) */
-    int (*sign_rs_func)(void *ctx, mbedtls_md_type_t md_alg,
+    int (*sign_rs_func)(mbedtls_pk_context *pk, mbedtls_md_type_t md_alg,
                         const unsigned char *hash, size_t hash_len,
                         unsigned char *sig, size_t sig_size, size_t *sig_len,
                         int (*f_rng)(void *, unsigned char *, size_t),
@@ -72,19 +72,19 @@
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
     /** Decrypt message */
-    int (*decrypt_func)(void *ctx, const unsigned char *input, size_t ilen,
+    int (*decrypt_func)(mbedtls_pk_context *pk, const unsigned char *input, size_t ilen,
                         unsigned char *output, size_t *olen, size_t osize,
                         int (*f_rng)(void *, unsigned char *, size_t),
                         void *p_rng);
 
     /** Encrypt message */
-    int (*encrypt_func)(void *ctx, const unsigned char *input, size_t ilen,
+    int (*encrypt_func)(mbedtls_pk_context *pk, const unsigned char *input, size_t ilen,
                         unsigned char *output, size_t *olen, size_t osize,
                         int (*f_rng)(void *, unsigned char *, size_t),
                         void *p_rng);
 
     /** Check public-private key pair */
-    int (*check_pair_func)(const void *pub, const void *prv,
+    int (*check_pair_func)(mbedtls_pk_context *pub, mbedtls_pk_context *prv,
                            int (*f_rng)(void *, unsigned char *, size_t),
                            void *p_rng);
 
@@ -103,7 +103,7 @@
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
     /** Interface with the debug module */
-    void (*debug_func)(const void *ctx, mbedtls_pk_debug_item *items);
+    void (*debug_func)(mbedtls_pk_context *pk, mbedtls_pk_debug_item *items);
 
 };
 #if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
@@ -120,7 +120,7 @@
 extern const mbedtls_pk_info_t mbedtls_rsa_info;
 #endif
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 extern const mbedtls_pk_info_t mbedtls_eckey_info;
 extern const mbedtls_pk_info_t mbedtls_eckeydh_info;
 #endif
@@ -137,26 +137,30 @@
 extern const mbedtls_pk_info_t mbedtls_pk_ecdsa_opaque_info;
 extern const mbedtls_pk_info_t mbedtls_pk_rsa_opaque_info;
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 #if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
-int mbedtls_pk_error_from_psa_ecdsa(psa_status_t status);
+int MBEDTLS_DEPRECATED mbedtls_pk_error_from_psa_ecdsa(psa_status_t status);
+#endif
 #endif
 
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)
-int mbedtls_pk_error_from_psa(psa_status_t status);
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+int MBEDTLS_DEPRECATED mbedtls_pk_error_from_psa(psa_status_t status);
 
 #if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) ||    \
     defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
-int mbedtls_pk_error_from_psa_rsa(psa_status_t status);
+int MBEDTLS_DEPRECATED mbedtls_pk_error_from_psa_rsa(psa_status_t status);
 #endif /* PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY || PSA_WANT_KEY_TYPE_RSA_KEY_PAIR */
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
 
 #if defined(MBEDTLS_RSA_C)
-int  mbedtls_pk_psa_rsa_sign_ext(psa_algorithm_t psa_alg_md,
-                                 mbedtls_rsa_context *rsa_ctx,
-                                 const unsigned char *hash, size_t hash_len,
-                                 unsigned char *sig, size_t sig_size,
-                                 size_t *sig_len);
+int mbedtls_pk_psa_rsa_sign_ext(psa_algorithm_t psa_alg_md,
+                                mbedtls_rsa_context *rsa_ctx,
+                                const unsigned char *hash, size_t hash_len,
+                                unsigned char *sig, size_t sig_size,
+                                size_t *sig_len);
 #endif /* MBEDTLS_RSA_C */
 
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/pkcs12.c b/library/pkcs12.c
index f5ab742..515d9e1 100644
--- a/library/pkcs12.c
+++ b/library/pkcs12.c
@@ -227,7 +227,6 @@
                             unsigned char *pwd_block, unsigned char *hash_output, int use_salt,
                             int use_password, size_t hlen, size_t v)
 {
-#if defined(MBEDTLS_MD_C)
     int ret = -1;
     size_t i;
     const mbedtls_md_info_t *md_info;
@@ -278,58 +277,6 @@
 exit:
     mbedtls_md_free(&md_ctx);
     return ret;
-#else
-    psa_hash_operation_t op = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t alg = mbedtls_psa_translate_md(md_type);
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_status_t status_abort = PSA_ERROR_CORRUPTION_DETECTED;
-    size_t i, out_len, out_size = PSA_HASH_LENGTH(alg);
-
-    if (alg == PSA_ALG_NONE) {
-        return MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE;
-    }
-
-    if ((status = psa_hash_setup(&op, alg)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    // Calculate hash( diversifier || salt_block || pwd_block )
-    if ((status = psa_hash_update(&op, diversifier, v)) != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    if (use_salt != 0) {
-        if ((status = psa_hash_update(&op, salt_block, v)) != PSA_SUCCESS) {
-            goto exit;
-        }
-    }
-
-    if (use_password != 0) {
-        if ((status = psa_hash_update(&op, pwd_block, v)) != PSA_SUCCESS) {
-            goto exit;
-        }
-    }
-
-    if ((status = psa_hash_finish(&op, hash_output, out_size, &out_len))
-        != PSA_SUCCESS) {
-        goto exit;
-    }
-
-    // Perform remaining ( iterations - 1 ) recursive hash calculations
-    for (i = 1; i < (size_t) iterations; i++) {
-        if ((status = psa_hash_compute(alg, hash_output, hlen, hash_output,
-                                       out_size, &out_len)) != PSA_SUCCESS) {
-            goto exit;
-        }
-    }
-
-exit:
-    status_abort = psa_hash_abort(&op);
-    if (status == PSA_SUCCESS) {
-        status = status_abort;
-    }
-    return mbedtls_md_error_from_psa(status);
-#endif /* !MBEDTLS_MD_C */
 }
 
 
diff --git a/library/pkcs5.c b/library/pkcs5.c
index 4e71dd3..0f4baf1 100644
--- a/library/pkcs5.c
+++ b/library/pkcs5.c
@@ -215,7 +215,6 @@
 }
 #endif /* MBEDTLS_ASN1_PARSE_C */
 
-#if defined(MBEDTLS_MD_C)
 static int pkcs5_pbkdf2_hmac(mbedtls_md_context_t *ctx,
                              const unsigned char *password,
                              size_t plen, const unsigned char *salt, size_t slen,
@@ -316,7 +315,6 @@
                              key_length, output);
 }
 #endif
-#endif /* MBEDTLS_MD_C */
 
 int mbedtls_pkcs5_pbkdf2_hmac_ext(mbedtls_md_type_t md_alg,
                                   const unsigned char *password,
@@ -324,7 +322,6 @@
                                   unsigned int iteration_count,
                                   uint32_t key_length, unsigned char *output)
 {
-#if defined(MBEDTLS_MD_C)
     mbedtls_md_context_t md_ctx;
     const mbedtls_md_info_t *md_info = NULL;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -344,121 +341,11 @@
 exit:
     mbedtls_md_free(&md_ctx);
     return ret;
-#else
-    unsigned int i;
-    unsigned char md1[PSA_HASH_MAX_SIZE];
-    unsigned char work[PSA_HASH_MAX_SIZE];
-    const unsigned char md_size = mbedtls_hash_info_get_size(md_alg);
-    psa_mac_operation_t operation = PSA_MAC_OPERATION_INIT;
-
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_status_t status_destruction = PSA_ERROR_CORRUPTION_DETECTED;
-    size_t use_len, out_len;
-    unsigned char *out_p = output;
-    unsigned char counter[4];
-    mbedtls_svc_key_id_t psa_hmac_key = MBEDTLS_SVC_KEY_ID_INIT;
-    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-    const psa_algorithm_t alg = PSA_ALG_HMAC(mbedtls_hash_info_psa_from_md(md_alg));
-    const size_t out_size = PSA_MAC_LENGTH(PSA_KEY_TYPE_HMAC, 0, alg);
-
-    memset(counter, 0, sizeof(counter));
-    counter[3] = 1;
-
-    psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_SIGN_MESSAGE);
-    psa_set_key_algorithm(&attributes,  alg);
-    psa_set_key_type(&attributes, PSA_KEY_TYPE_HMAC);
-
-    if (key_length == 0) {
-        return 0;
-    }
-    if ((status = psa_import_key(&attributes,
-                                 password, plen,
-                                 &psa_hmac_key)) != PSA_SUCCESS) {
-        return MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA;
-    }
-
-#if UINT_MAX > 0xFFFFFFFF
-    if (iteration_count > 0xFFFFFFFF) {
-        return MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA;
-    }
-#endif
-
-    while (key_length) {
-        status = psa_mac_sign_setup(&operation, psa_hmac_key,
-                                    PSA_ALG_HMAC(alg));
-        if (status != PSA_SUCCESS) {
-            goto cleanup;
-        }
-        // U1 ends up in work
-        if ((status = psa_mac_update(&operation, salt, slen)) != PSA_SUCCESS) {
-            goto cleanup;
-        }
-
-        if ((status = psa_mac_update(&operation, counter, sizeof(counter))) != PSA_SUCCESS) {
-            goto cleanup;
-        }
-
-        if ((status = psa_mac_sign_finish(&operation, work, out_size, &out_len))
-            != PSA_SUCCESS) {
-            goto cleanup;
-        }
-
-        memcpy(md1, work, out_len);
-
-        for (i = 1; i < iteration_count; i++) {
-            // U2 ends up in md1
-            //
-            status = psa_mac_sign_setup(&operation, psa_hmac_key,
-                                        PSA_ALG_HMAC(alg));
-            if (status != PSA_SUCCESS) {
-                goto cleanup;
-            }
-            if ((status = psa_mac_update(&operation, md1, md_size)) != PSA_SUCCESS) {
-                goto cleanup;
-            }
-            if ((status =
-                     psa_mac_sign_finish(&operation, md1, out_size, &out_len)) != PSA_SUCCESS) {
-                goto cleanup;
-            }
-
-            // U1 xor U2
-            //
-            mbedtls_xor(work, work, md1, md_size);
-        }
-
-        use_len = (key_length < md_size) ? key_length : md_size;
-        memcpy(out_p, work, use_len);
-
-        key_length -= (uint32_t) use_len;
-        out_p += use_len;
-
-        for (i = 4; i > 0; i--) {
-            if (++counter[i - 1] != 0) {
-                break;
-            }
-        }
-    }
-
-cleanup:
-    /* Zeroise buffers to clear sensitive data from memory. */
-    mbedtls_platform_zeroize(work, PSA_HASH_MAX_SIZE);
-    mbedtls_platform_zeroize(md1, PSA_HASH_MAX_SIZE);
-    status_destruction = psa_destroy_key(psa_hmac_key);
-    if (status == PSA_SUCCESS && status_destruction != PSA_SUCCESS) {
-        status = status_destruction;
-    }
-    status_destruction = psa_mac_abort(&operation);
-    if (status == PSA_SUCCESS && status_destruction != PSA_SUCCESS) {
-        status = status_destruction;
-    }
-
-    return mbedtls_md_error_from_psa(status);
-#endif /* !MBEDTLS_MD_C */
 }
 
 #if defined(MBEDTLS_SELF_TEST)
 
-#if !defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA)
+#if !defined(MBEDTLS_MD_CAN_SHA1)
 int mbedtls_pkcs5_self_test(int verbose)
 {
     if (verbose != 0) {
@@ -556,7 +443,7 @@
 exit:
     return ret;
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
 #endif /* MBEDTLS_SELF_TEST */
 
diff --git a/library/pkcs7.c b/library/pkcs7.c
index 010d706..cf05afd 100644
--- a/library/pkcs7.c
+++ b/library/pkcs7.c
@@ -42,7 +42,7 @@
 #endif
 
 /**
- * Initializes the pkcs7 structure.
+ * Initializes the mbedtls_pkcs7 structure.
  */
 void mbedtls_pkcs7_init(mbedtls_pkcs7 *pkcs7)
 {
@@ -354,7 +354,7 @@
         goto out;
     }
 
-    /* Asssume authenticatedAttributes is nonexistent */
+    /* Assume authenticatedAttributes is nonexistent */
     ret = pkcs7_get_digest_algorithm(p, end_signer, &signer->sig_alg_identifier);
     if (ret != 0) {
         goto out;
diff --git a/library/pkparse.c b/library/pkparse.c
index ccca692..ade8a04 100644
--- a/library/pkparse.c
+++ b/library/pkparse.c
@@ -32,8 +32,9 @@
 #if defined(MBEDTLS_RSA_C)
 #include "mbedtls/rsa.h"
 #endif
-#if defined(MBEDTLS_ECP_C)
 #include "mbedtls/ecp.h"
+#if defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECP_C)
+#include "pkwrite.h"
 #endif
 #if defined(MBEDTLS_ECDSA_C)
 #include "mbedtls/ecdsa.h"
@@ -48,6 +49,14 @@
 #include "mbedtls/pkcs12.h"
 #endif
 
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+#include "mbedtls/psa_util.h"
+#endif
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#include "psa/crypto.h"
+#endif
+
 #include "mbedtls/platform.h"
 
 #if defined(MBEDTLS_FS_IO)
@@ -155,7 +164,7 @@
 }
 #endif /* MBEDTLS_FS_IO */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /* Minimally parse an ECParameters buffer to and mbedtls_asn1_buf
  *
  * ECParameters ::= CHOICE {
@@ -224,7 +233,7 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *p = params->p;
-    const unsigned char * const end = params->p + params->len;
+    const unsigned char *const end = params->p + params->len;
     const unsigned char *end_field, *end_curve;
     size_t len;
     int ver;
@@ -396,7 +405,6 @@
             mbedtls_mpi_get_bit(&grp->G.Y, 0) == mbedtls_mpi_get_bit(&ref.G.Y, 0)) {
             break;
         }
-
     }
 
 cleanup:
@@ -487,6 +495,119 @@
     return 0;
 }
 
+#if defined(MBEDTLS_ECP_LIGHT)
+/*
+ * Helper function for deriving a public key from its private counterpart.
+ */
+static int pk_derive_public_key(mbedtls_ecp_keypair *eck,
+                                const unsigned char *d, size_t d_len,
+                                int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
+{
+    int ret;
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+    psa_status_t status, destruction_status;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+    size_t curve_bits;
+    psa_ecc_family_t curve = mbedtls_ecc_group_to_psa(eck->grp.id, &curve_bits);
+    /* This buffer is used to store the private key at first and then the
+     * public one (but not at the same time). Therefore we size it for the
+     * latter since it's bigger. */
+    unsigned char key_buf[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
+    size_t key_len;
+    mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
+
+    (void) f_rng;
+    (void) p_rng;
+
+    psa_set_key_type(&key_attr, PSA_KEY_TYPE_ECC_KEY_PAIR(curve));
+    psa_set_key_usage_flags(&key_attr, PSA_KEY_USAGE_EXPORT);
+
+    status = psa_import_key(&key_attr, d, d_len, &key_id);
+    ret = psa_pk_status_to_mbedtls(status);
+    if (ret != 0) {
+        return ret;
+    }
+
+    mbedtls_platform_zeroize(key_buf, sizeof(key_buf));
+
+    status = psa_export_public_key(key_id, key_buf, sizeof(key_buf), &key_len);
+    ret = psa_pk_status_to_mbedtls(status);
+    destruction_status = psa_destroy_key(key_id);
+    if (ret != 0) {
+        return ret;
+    } else if (destruction_status != PSA_SUCCESS) {
+        return psa_pk_status_to_mbedtls(destruction_status);
+    }
+
+    ret = mbedtls_ecp_point_read_binary(&eck->grp, &eck->Q, key_buf, key_len);
+#else /* MBEDTLS_USE_PSA_CRYPTO */
+    (void) d;
+    (void) d_len;
+
+    ret = mbedtls_ecp_mul(&eck->grp, &eck->Q, &eck->d, &eck->grp.G, f_rng, p_rng);
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
+    return ret;
+}
+
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+
+/*
+ * Load an RFC8410 EC key, which doesn't have any parameters
+ */
+static int pk_use_ecparams_rfc8410(const mbedtls_asn1_buf *params,
+                                   mbedtls_ecp_group_id grp_id,
+                                   mbedtls_ecp_group *grp)
+{
+    if (params->tag != 0 || params->len != 0) {
+        return MBEDTLS_ERR_PK_KEY_INVALID_FORMAT;
+    }
+
+    return mbedtls_ecp_group_load(grp, grp_id);
+}
+
+/*
+ * Parse an RFC 8410 encoded private EC key
+ *
+ * CurvePrivateKey ::= OCTET STRING
+ */
+static int pk_parse_key_rfc8410_der(mbedtls_ecp_keypair *eck,
+                                    unsigned char *key, size_t keylen, const unsigned char *end,
+                                    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t len;
+
+    if ((ret = mbedtls_asn1_get_tag(&key, (key + keylen), &len, MBEDTLS_ASN1_OCTET_STRING)) != 0) {
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret);
+    }
+
+    if (key + len != end) {
+        return MBEDTLS_ERR_PK_KEY_INVALID_FORMAT;
+    }
+
+    if ((ret = mbedtls_mpi_read_binary_le(&eck->d, key, len)) != 0) {
+        mbedtls_ecp_keypair_free(eck);
+        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret);
+    }
+
+    // pk_parse_key_pkcs8_unencrypted_der() only supports version 1 PKCS8 keys,
+    // which never contain a public key. As such, derive the public key
+    // unconditionally.
+    if ((ret = pk_derive_public_key(eck, key, len, f_rng, p_rng)) != 0) {
+        mbedtls_ecp_keypair_free(eck);
+        return ret;
+    }
+
+    if ((ret = mbedtls_ecp_check_privkey(&eck->grp, &eck->d)) != 0) {
+        mbedtls_ecp_keypair_free(eck);
+        return ret;
+    }
+
+    return 0;
+}
+#endif /* MBEDTLS_PK_HAVE_RFC8410_CURVES */
+#endif /* MBEDTLS_ECP_LIGHT */
+
 /*
  * EC public key is an EC point
  *
@@ -511,7 +632,7 @@
 
     return ret;
 }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_RSA_C)
 /*
@@ -583,7 +704,8 @@
  */
 static int pk_get_pk_alg(unsigned char **p,
                          const unsigned char *end,
-                         mbedtls_pk_type_t *pk_alg, mbedtls_asn1_buf *params)
+                         mbedtls_pk_type_t *pk_alg, mbedtls_asn1_buf *params,
+                         mbedtls_ecp_group_id *ec_grp_id)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_asn1_buf alg_oid;
@@ -594,7 +716,18 @@
         return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_INVALID_ALG, ret);
     }
 
-    if (mbedtls_oid_get_pk_alg(&alg_oid, pk_alg) != 0) {
+    ret = mbedtls_oid_get_pk_alg(&alg_oid, pk_alg);
+#if defined(MBEDTLS_ECP_LIGHT)
+    if (ret == MBEDTLS_ERR_OID_NOT_FOUND) {
+        ret = mbedtls_oid_get_ec_grp_algid(&alg_oid, ec_grp_id);
+        if (ret == 0) {
+            *pk_alg = MBEDTLS_PK_ECKEY;
+        }
+    }
+#else
+    (void) ec_grp_id;
+#endif
+    if (ret != 0) {
         return MBEDTLS_ERR_PK_UNKNOWN_PK_ALG;
     }
 
@@ -622,6 +755,7 @@
     size_t len;
     mbedtls_asn1_buf alg_params;
     mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
+    mbedtls_ecp_group_id ec_grp_id = MBEDTLS_ECP_DP_NONE;
     const mbedtls_pk_info_t *pk_info;
 
     if ((ret = mbedtls_asn1_get_tag(p, end, &len,
@@ -631,7 +765,7 @@
 
     end = *p + len;
 
-    if ((ret = pk_get_pk_alg(p, end, &pk_alg, &alg_params)) != 0) {
+    if ((ret = pk_get_pk_alg(p, end, &pk_alg, &alg_params, &ec_grp_id)) != 0) {
         return ret;
     }
 
@@ -657,14 +791,21 @@
         ret = pk_get_rsapubkey(p, end, mbedtls_pk_rsa(*pk));
     } else
 #endif /* MBEDTLS_RSA_C */
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (pk_alg == MBEDTLS_PK_ECKEY_DH || pk_alg == MBEDTLS_PK_ECKEY) {
-        ret = pk_use_ecparams(&alg_params, &mbedtls_pk_ec(*pk)->grp);
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+        if (mbedtls_pk_is_rfc8410_curve(ec_grp_id)) {
+            ret = pk_use_ecparams_rfc8410(&alg_params, ec_grp_id, &mbedtls_pk_ec(*pk)->grp);
+        } else
+#endif
+        {
+            ret = pk_use_ecparams(&alg_params, &mbedtls_pk_ec(*pk)->grp);
+        }
         if (ret == 0) {
             ret = pk_get_ecpubkey(p, end, mbedtls_pk_ec(*pk));
         }
     } else
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
     ret = MBEDTLS_ERR_PK_UNKNOWN_PK_ALG;
 
     if (ret == 0 && *p != end) {
@@ -868,7 +1009,7 @@
 }
 #endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /*
  * Parse a SEC1 encoded private EC key
  */
@@ -878,9 +1019,10 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     int version, pubkey_done;
-    size_t len;
+    size_t len, d_len;
     mbedtls_asn1_buf params = { 0, 0, NULL };
     unsigned char *p = (unsigned char *) key;
+    unsigned char *d;
     unsigned char *end = p + keylen;
     unsigned char *end2;
 
@@ -913,6 +1055,8 @@
         return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret);
     }
 
+    d = p;
+    d_len = len;
     if ((ret = mbedtls_mpi_read_binary(&eck->d, p, len)) != 0) {
         mbedtls_ecp_keypair_free(eck);
         return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret);
@@ -975,11 +1119,11 @@
         }
     }
 
-    if (!pubkey_done &&
-        (ret = mbedtls_ecp_mul(&eck->grp, &eck->Q, &eck->d, &eck->grp.G,
-                               f_rng, p_rng)) != 0) {
-        mbedtls_ecp_keypair_free(eck);
-        return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT, ret);
+    if (!pubkey_done) {
+        if ((ret = pk_derive_public_key(eck, d, d_len, f_rng, p_rng)) != 0) {
+            mbedtls_ecp_keypair_free(eck);
+            return ret;
+        }
     }
 
     if ((ret = mbedtls_ecp_check_privkey(&eck->grp, &eck->d)) != 0) {
@@ -989,7 +1133,7 @@
 
     return 0;
 }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 /*
  * Parse an unencrypted PKCS#8 encoded private key
@@ -1015,9 +1159,10 @@
     unsigned char *p = (unsigned char *) key;
     unsigned char *end = p + keylen;
     mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
+    mbedtls_ecp_group_id ec_grp_id = MBEDTLS_ECP_DP_NONE;
     const mbedtls_pk_info_t *pk_info;
 
-#if !defined(MBEDTLS_ECP_C)
+#if !defined(MBEDTLS_ECP_LIGHT)
     (void) f_rng;
     (void) p_rng;
 #endif
@@ -1053,7 +1198,7 @@
         return MBEDTLS_ERROR_ADD(MBEDTLS_ERR_PK_KEY_INVALID_VERSION, ret);
     }
 
-    if ((ret = pk_get_pk_alg(&p, end, &pk_alg, &params)) != 0) {
+    if ((ret = pk_get_pk_alg(&p, end, &pk_alg, &params, &ec_grp_id)) != 0) {
         return ret;
     }
 
@@ -1082,15 +1227,29 @@
         }
     } else
 #endif /* MBEDTLS_RSA_C */
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (pk_alg == MBEDTLS_PK_ECKEY || pk_alg == MBEDTLS_PK_ECKEY_DH) {
-        if ((ret = pk_use_ecparams(&params, &mbedtls_pk_ec(*pk)->grp)) != 0 ||
-            (ret = pk_parse_key_sec1_der(mbedtls_pk_ec(*pk), p, len, f_rng, p_rng)) != 0) {
-            mbedtls_pk_free(pk);
-            return ret;
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+        if (mbedtls_pk_is_rfc8410_curve(ec_grp_id)) {
+            if ((ret =
+                     pk_use_ecparams_rfc8410(&params, ec_grp_id, &mbedtls_pk_ec(*pk)->grp)) != 0 ||
+                (ret =
+                     pk_parse_key_rfc8410_der(mbedtls_pk_ec(*pk), p, len, end, f_rng,
+                                              p_rng)) != 0) {
+                mbedtls_pk_free(pk);
+                return ret;
+            }
+        } else
+#endif
+        {
+            if ((ret = pk_use_ecparams(&params, &mbedtls_pk_ec(*pk)->grp)) != 0 ||
+                (ret = pk_parse_key_sec1_der(mbedtls_pk_ec(*pk), p, len, f_rng, p_rng)) != 0) {
+                mbedtls_pk_free(pk);
+                return ret;
+            }
         }
     } else
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
     return MBEDTLS_ERR_PK_UNKNOWN_PK_ALG;
 
     return 0;
@@ -1257,7 +1416,7 @@
     }
 #endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
     if (key[keylen - 1] != '\0') {
         ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
@@ -1286,7 +1445,7 @@
     } else if (ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) {
         return ret;
     }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
     /* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
     if (key[keylen - 1] != '\0') {
@@ -1392,7 +1551,7 @@
     mbedtls_pk_init(pk);
 #endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     pk_info = mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY);
     if (mbedtls_pk_setup(pk, pk_info) == 0 &&
         pk_parse_key_sec1_der(mbedtls_pk_ec(*pk),
@@ -1400,7 +1559,7 @@
         return 0;
     }
     mbedtls_pk_free(pk);
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
     /* If MBEDTLS_RSA_C is defined but MBEDTLS_ECP_C isn't,
      * it is ok to leave the PK context initialized but not
@@ -1488,7 +1647,7 @@
          */
         p = pem.buf;
 
-        ret = mbedtls_pk_parse_subpubkey(&p,  p + pem.buflen, ctx);
+        ret = mbedtls_pk_parse_subpubkey(&p, p + pem.buflen, ctx);
         mbedtls_pem_free(&pem);
         return ret;
     } else if (ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) {
diff --git a/library/pkwrite.c b/library/pkwrite.c
index 2194c97..b83a13e 100644
--- a/library/pkwrite.c
+++ b/library/pkwrite.c
@@ -98,7 +98,7 @@
 }
 #endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /*
  * EC public key is an EC point
  */
@@ -131,14 +131,14 @@
  * }
  */
 static int pk_write_ec_param(unsigned char **p, unsigned char *start,
-                             mbedtls_ecp_keypair *ec)
+                             mbedtls_ecp_group_id grp_id)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     size_t len = 0;
     const char *oid;
     size_t oid_len;
 
-    if ((ret = mbedtls_oid_get_oid_by_ec_grp(ec->grp.id, &oid, &oid_len)) != 0) {
+    if ((ret = mbedtls_oid_get_oid_by_ec_grp(grp_id, &oid, &oid_len)) != 0) {
         return ret;
     }
 
@@ -167,7 +167,7 @@
     mbedtls_platform_zeroize(tmp, byte_length);
     return ret;
 }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 int mbedtls_pk_write_pubkey(unsigned char **p, unsigned char *start,
                             const mbedtls_pk_context *key)
@@ -180,7 +180,7 @@
         MBEDTLS_ASN1_CHK_ADD(len, pk_write_rsa_pubkey(p, start, mbedtls_pk_rsa(*key)));
     } else
 #endif
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) {
         MBEDTLS_ASN1_CHK_ADD(len, pk_write_ec_pubkey(p, start, mbedtls_pk_ec(*key)));
     } else
@@ -213,8 +213,12 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *c;
-    size_t len = 0, par_len = 0, oid_len;
+    int has_par = 1;
+    size_t len = 0, par_len = 0, oid_len = 0;
     mbedtls_pk_type_t pk_type;
+#if defined(MBEDTLS_ECP_LIGHT)
+    mbedtls_ecp_group_id ec_grp_id = MBEDTLS_ECP_DP_NONE;
+#endif
     const char *oid;
 
     if (size == 0) {
@@ -241,63 +245,74 @@
     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_BIT_STRING));
 
     pk_type = mbedtls_pk_get_type(key);
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (pk_type == MBEDTLS_PK_ECKEY) {
-        MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, mbedtls_pk_ec(*key)));
+        ec_grp_id = mbedtls_pk_ec(*key)->grp.id;
     }
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if (pk_type == MBEDTLS_PK_OPAQUE) {
         psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
         psa_key_type_t key_type;
         mbedtls_svc_key_id_t key_id;
-        psa_ecc_family_t curve;
-        size_t bits;
-
         key_id = *((mbedtls_svc_key_id_t *) key->pk_ctx);
         if (PSA_SUCCESS != psa_get_key_attributes(key_id, &attributes)) {
             return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
         }
         key_type = psa_get_key_type(&attributes);
-        bits = psa_get_key_bits(&attributes);
-        psa_reset_key_attributes(&attributes);
 
+#if defined(MBEDTLS_ECP_LIGHT)
         if (PSA_KEY_TYPE_IS_ECC_KEY_PAIR(key_type)) {
+            psa_ecc_family_t curve;
+
             curve = PSA_KEY_TYPE_ECC_GET_FAMILY(key_type);
-            if (curve == 0) {
-                return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+            if (curve != 0) {
+                ec_grp_id = mbedtls_ecc_group_of_psa(curve, psa_get_key_bits(&attributes), 0);
+                if (ec_grp_id != MBEDTLS_ECP_DP_NONE) {
+                    /* The rest of the function works as for legacy EC contexts. */
+                    pk_type = MBEDTLS_PK_ECKEY;
+                }
             }
-
-            ret = mbedtls_psa_get_ecc_oid_from_id(curve, bits,
-                                                  &oid, &oid_len);
-            if (ret != 0) {
-                return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
-            }
-
-            /* Write EC algorithm parameters; that's akin
-             * to pk_write_ec_param() above. */
-            MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_oid(&c, buf,
-                                                                 oid,
-                                                                 oid_len));
-
-            /* The rest of the function works as for legacy EC contexts. */
-            pk_type = MBEDTLS_PK_ECKEY;
-        } else if (PSA_KEY_TYPE_IS_RSA(key_type)) {
+        }
+#endif /* MBEDTLS_ECP_LIGHT */
+        if (PSA_KEY_TYPE_IS_RSA(key_type)) {
             /* The rest of the function works as for legacy RSA contexts. */
             pk_type = MBEDTLS_PK_RSA;
-        } else {
-            return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
         }
+
+        psa_reset_key_attributes(&attributes);
+    }
+    /* `pk_type` will have been changed to non-opaque by here if this function can handle it */
+    if (pk_type == MBEDTLS_PK_OPAQUE) {
+        return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-    if ((ret = mbedtls_oid_get_oid_by_pk_alg(pk_type, &oid,
-                                             &oid_len)) != 0) {
-        return ret;
+#if defined(MBEDTLS_ECP_LIGHT)
+    if (pk_type == MBEDTLS_PK_ECKEY) {
+        /* Some groups have their own AlgorithmIdentifier OID, others are handled by mbedtls_oid_get_oid_by_pk_alg() below */
+        ret = mbedtls_oid_get_oid_by_ec_grp_algid(ec_grp_id, &oid, &oid_len);
+
+        if (ret == 0) {
+            /* Currently, none of the supported algorithms that have their own AlgorithmIdentifier OID have any parameters */
+            has_par = 0;
+        } else if (ret == MBEDTLS_ERR_OID_NOT_FOUND) {
+            MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, ec_grp_id));
+        } else {
+            return ret;
+        }
+    }
+#endif /* MBEDTLS_ECP_LIGHT */
+
+    if (oid_len == 0) {
+        if ((ret = mbedtls_oid_get_oid_by_pk_alg(pk_type, &oid,
+                                                 &oid_len)) != 0) {
+            return ret;
+        }
     }
 
-    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_algorithm_identifier(&c, buf, oid, oid_len,
-                                                                      par_len));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_algorithm_identifier_ext(&c, buf, oid, oid_len,
+                                                                          par_len, has_par));
 
     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(&c, buf, len));
     MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(&c, buf, MBEDTLS_ASN1_CONSTRUCTED |
@@ -306,6 +321,55 @@
     return (int) len;
 }
 
+#if defined(MBEDTLS_ECP_LIGHT)
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+/*
+ * RFC8410
+ *
+ * OneAsymmetricKey ::= SEQUENCE {
+ *    version Version,
+ *    privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
+ *    privateKey PrivateKey,
+ *    attributes [0] IMPLICIT Attributes OPTIONAL,
+ *    ...,
+ *    [[2: publicKey [1] IMPLICIT PublicKey OPTIONAL ]],
+ *    ...
+ * }
+ *
+ * CurvePrivateKey ::= OCTET STRING
+ */
+static int pk_write_ec_rfc8410_der(unsigned char **p, unsigned char *buf,
+                                   mbedtls_ecp_keypair *ec)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t len = 0;
+    size_t oid_len = 0;
+    const char *oid;
+
+    /* privateKey */
+    MBEDTLS_ASN1_CHK_ADD(len, pk_write_ec_private(p, buf, ec));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(p, buf, len));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(p, buf, MBEDTLS_ASN1_OCTET_STRING));
+
+    /* privateKeyAlgorithm */
+    if ((ret = mbedtls_oid_get_oid_by_ec_grp_algid(ec->grp.id, &oid, &oid_len)) != 0) {
+        return ret;
+    }
+    MBEDTLS_ASN1_CHK_ADD(len,
+                         mbedtls_asn1_write_algorithm_identifier_ext(p, buf, oid, oid_len, 0, 0));
+
+    /* version */
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_int(p, buf, 0));
+
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_len(p, buf, len));
+    MBEDTLS_ASN1_CHK_ADD(len, mbedtls_asn1_write_tag(p, buf, MBEDTLS_ASN1_CONSTRUCTED |
+                                                     MBEDTLS_ASN1_SEQUENCE));
+
+    return (int) len;
+}
+#endif /* MBEDTLS_PK_HAVE_RFC8410_CURVES */
+#endif /* MBEDTLS_ECP_LIGHT */
+
 int mbedtls_pk_write_key_der(const mbedtls_pk_context *key, unsigned char *buf, size_t size)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -404,11 +468,17 @@
                                                          MBEDTLS_ASN1_SEQUENCE));
     } else
 #endif /* MBEDTLS_RSA_C */
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) {
         mbedtls_ecp_keypair *ec = mbedtls_pk_ec(*key);
         size_t pub_len = 0, par_len = 0;
 
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+        if (mbedtls_pk_is_rfc8410_curve(ec->grp.id)) {
+            return pk_write_ec_rfc8410_der(&c, buf, ec);
+        }
+#endif
+
         /*
          * RFC 5915, or SEC1 Appendix C.4
          *
@@ -439,7 +509,7 @@
         len += pub_len;
 
         /* parameters */
-        MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, ec));
+        MBEDTLS_ASN1_CHK_ADD(par_len, pk_write_ec_param(&c, buf, ec->grp.id));
 
         MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_len(&c, buf, par_len));
         MBEDTLS_ASN1_CHK_ADD(par_len, mbedtls_asn1_write_tag(&c, buf,
@@ -472,6 +542,8 @@
 #define PEM_END_PRIVATE_KEY_RSA     "-----END RSA PRIVATE KEY-----\n"
 #define PEM_BEGIN_PRIVATE_KEY_EC    "-----BEGIN EC PRIVATE KEY-----\n"
 #define PEM_END_PRIVATE_KEY_EC      "-----END EC PRIVATE KEY-----\n"
+#define PEM_BEGIN_PRIVATE_KEY_PKCS8 "-----BEGIN PRIVATE KEY-----\n"
+#define PEM_END_PRIVATE_KEY_PKCS8   "-----END PRIVATE KEY-----\n"
 
 #define PUB_DER_MAX_BYTES                                                   \
     (MBEDTLS_PK_RSA_PUB_DER_MAX_BYTES > MBEDTLS_PK_ECP_PUB_DER_MAX_BYTES ? \
@@ -517,10 +589,18 @@
         end = PEM_END_PRIVATE_KEY_RSA;
     } else
 #endif
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (mbedtls_pk_get_type(key) == MBEDTLS_PK_ECKEY) {
-        begin = PEM_BEGIN_PRIVATE_KEY_EC;
-        end = PEM_END_PRIVATE_KEY_EC;
+#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
+        if (mbedtls_pk_is_rfc8410_curve(mbedtls_pk_ec(*key)->grp.id)) {
+            begin = PEM_BEGIN_PRIVATE_KEY_PKCS8;
+            end = PEM_END_PRIVATE_KEY_PKCS8;
+        } else
+#endif
+        {
+            begin = PEM_BEGIN_PRIVATE_KEY_EC;
+            end = PEM_END_PRIVATE_KEY_EC;
+        }
     } else
 #endif
     return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
diff --git a/library/pkwrite.h b/library/pkwrite.h
index 8aebd0c..537bd0f 100644
--- a/library/pkwrite.h
+++ b/library/pkwrite.h
@@ -105,4 +105,27 @@
 
 #endif /* MBEDTLS_ECP_C */
 
+#if defined(MBEDTLS_ECP_LIGHT)
+#include "mbedtls/ecp.h"
+
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+#define MBEDTLS_PK_HAVE_RFC8410_CURVES
+
+static inline int mbedtls_pk_is_rfc8410_curve(mbedtls_ecp_group_id id)
+{
+#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
+    if (id == MBEDTLS_ECP_DP_CURVE25519) {
+        return 1;
+    }
+#endif
+#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
+    if (id == MBEDTLS_ECP_DP_CURVE448) {
+        return 1;
+    }
+#endif
+    return 0;
+}
+#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED || MBEDTLS_ECP_DP_CURVE448_ENABLED */
+#endif /* MBEDTLS_ECP_LIGHT */
+
 #endif /* MBEDTLS_PK_WRITE_H */
diff --git a/library/platform_util.c b/library/platform_util.c
index f935b90..e903f8e 100644
--- a/library/platform_util.c
+++ b/library/platform_util.c
@@ -20,12 +20,18 @@
 
 /*
  * Ensure gmtime_r is available even with -std=c99; must be defined before
- * mbedtls_config.h, which pulls in glibc's features.h. Harmless on other platforms.
+ * mbedtls_config.h, which pulls in glibc's features.h. Harmless on other platforms
+ * except OpenBSD, where it stops us accessing explicit_bzero.
  */
-#if !defined(_POSIX_C_SOURCE)
+#if !defined(_POSIX_C_SOURCE) && !defined(__OpenBSD__)
 #define _POSIX_C_SOURCE 200112L
 #endif
 
+#if !defined(_GNU_SOURCE)
+/* Clang requires this to get support for explicit_bzero */
+#define _GNU_SOURCE
+#endif
+
 #include "common.h"
 
 #include "mbedtls/platform_util.h"
@@ -33,11 +39,40 @@
 #include "mbedtls/threading.h"
 
 #include <stddef.h>
+
+#ifndef __STDC_WANT_LIB_EXT1__
+#define __STDC_WANT_LIB_EXT1__ 1 /* Ask for the C11 gmtime_s() and memset_s() if available */
+#endif
 #include <string.h>
 
+#if defined(_WIN32)
+#include <windows.h>
+#endif
+
+// Detect platforms known to support explicit_bzero()
+#if defined(__GLIBC__) && (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 25)
+#define MBEDTLS_PLATFORM_HAS_EXPLICIT_BZERO 1
+#elif (defined(__FreeBSD__) && (__FreeBSD_version >= 1100037)) || defined(__OpenBSD__)
+#define MBEDTLS_PLATFORM_HAS_EXPLICIT_BZERO 1
+#endif
+
 #if !defined(MBEDTLS_PLATFORM_ZEROIZE_ALT)
+
+#undef HAVE_MEMORY_SANITIZER
+#if defined(__has_feature)
+#if __has_feature(memory_sanitizer)
+#include <sanitizer/msan_interface.h>
+#define HAVE_MEMORY_SANITIZER
+#endif
+#endif
+
 /*
- * This implementation should never be optimized out by the compiler
+ * Where possible, we try to detect the presence of a platform-provided
+ * secure memset, such as explicit_bzero(), that is safe against being optimized
+ * out, and use that.
+ *
+ * For other platforms, we provide an implementation that aims not to be
+ * optimized out by the compiler.
  *
  * This implementation for mbedtls_platform_zeroize() was inspired from Colin
  * Percival's blog article at:
@@ -52,30 +87,49 @@
  * (refer to http://www.daemonology.net/blog/2014-09-05-erratum.html for
  * details), optimizations of the following form are still possible:
  *
- * if( memset_func != memset )
- *     memset_func( buf, 0, len );
+ * if (memset_func != memset)
+ *     memset_func(buf, 0, len);
  *
  * Note that it is extremely difficult to guarantee that
- * mbedtls_platform_zeroize() will not be optimized out by aggressive compilers
+ * the memset() call will not be optimized out by aggressive compilers
  * in a portable way. For this reason, Mbed TLS also provides the configuration
  * option MBEDTLS_PLATFORM_ZEROIZE_ALT, which allows users to configure
  * mbedtls_platform_zeroize() to use a suitable implementation for their
  * platform and needs.
  */
+#if !defined(MBEDTLS_PLATFORM_HAS_EXPLICIT_BZERO) && !defined(__STDC_LIB_EXT1__) \
+    && !defined(_WIN32)
 static void *(*const volatile memset_func)(void *, int, size_t) = memset;
+#endif
 
 void mbedtls_platform_zeroize(void *buf, size_t len)
 {
     MBEDTLS_INTERNAL_VALIDATE(len == 0 || buf != NULL);
 
     if (len > 0) {
+#if defined(MBEDTLS_PLATFORM_HAS_EXPLICIT_BZERO)
+        explicit_bzero(buf, len);
+#if defined(HAVE_MEMORY_SANITIZER)
+        /* You'd think that Msan would recognize explicit_bzero() as
+         * equivalent to bzero(), but it actually doesn't on several
+         * platforms, including Linux (Ubuntu 20.04).
+         * https://github.com/google/sanitizers/issues/1507
+         * https://github.com/openssh/openssh-portable/commit/74433a19bb6f4cef607680fa4d1d7d81ca3826aa
+         */
+        __msan_unpoison(buf, len);
+#endif
+#elif defined(__STDC_LIB_EXT1__)
+        memset_s(buf, len, 0, len);
+#elif defined(_WIN32)
+        SecureZeroMemory(buf, len);
+#else
         memset_func(buf, 0, len);
+#endif
     }
 }
 #endif /* MBEDTLS_PLATFORM_ZEROIZE_ALT */
 
 #if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
-#define __STDC_WANT_LIB_EXT1__ 1  /* Ask for the C11 gmtime_s() if it's available */
 #include <time.h>
 #if !defined(_WIN32) && (defined(unix) || \
     defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
@@ -165,3 +219,45 @@
 extern inline uint64_t mbedtls_get_unaligned_uint64(const void *p);
 
 extern inline void mbedtls_put_unaligned_uint64(void *p, uint64_t x);
+
+#if defined(MBEDTLS_HAVE_TIME) && !defined(MBEDTLS_PLATFORM_MS_TIME_ALT)
+
+#include <time.h>
+#if !defined(_WIN32) && \
+    (defined(unix) || defined(__unix) || defined(__unix__) || \
+    (defined(__APPLE__) && defined(__MACH__)))
+#include <unistd.h>
+#endif /* !_WIN32 && (unix || __unix || __unix__ || (__APPLE__ && __MACH__)) */
+#if (defined(_POSIX_VERSION) && _POSIX_VERSION >= 199309L)
+mbedtls_ms_time_t mbedtls_ms_time(void)
+{
+    int ret;
+    struct timespec tv;
+    mbedtls_ms_time_t current_ms;
+
+    ret = clock_gettime(CLOCK_MONOTONIC, &tv);
+    if (ret) {
+        return time(NULL) * 1000;
+    }
+
+    current_ms = tv.tv_sec;
+
+    return current_ms*1000 + tv.tv_nsec / 1000000;
+}
+#elif defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || \
+    defined(__MINGW32__) || defined(_WIN64)
+#include <windows.h>
+mbedtls_ms_time_t mbedtls_ms_time(void)
+{
+    FILETIME ct;
+    mbedtls_ms_time_t current_ms;
+
+    GetSystemTimeAsFileTime(&ct);
+    current_ms = ((mbedtls_ms_time_t) ct.dwLowDateTime +
+                  ((mbedtls_ms_time_t) (ct.dwHighDateTime) << 32LL))/10000;
+    return current_ms;
+}
+#else
+#error "No mbedtls_ms_time available"
+#endif
+#endif /* MBEDTLS_HAVE_TIME && !MBEDTLS_PLATFORM_MS_TIME_ALT */
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 0efebb4..f7e91d6 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -19,6 +19,7 @@
  */
 
 #include "common.h"
+#include "psa_crypto_core_common.h"
 
 #if defined(MBEDTLS_PSA_CRYPTO_C)
 
@@ -48,7 +49,6 @@
 
 #include "psa_crypto_random_impl.h"
 
-#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 #include "mbedtls/platform.h"
@@ -108,6 +108,7 @@
 typedef struct {
     unsigned initialized : 1;
     unsigned rng_state : 2;
+    unsigned drivers_initialized : 1;
     mbedtls_psa_random_context_t rng;
 } psa_global_data_t;
 
@@ -122,6 +123,12 @@
     if (global_data.initialized == 0)  \
     return PSA_ERROR_BAD_STATE;
 
+int psa_can_do_hash(psa_algorithm_t hash_alg)
+{
+    (void) hash_alg;
+    return global_data.drivers_initialized;
+}
+
 psa_status_t mbedtls_to_psa_error(int ret)
 {
     /* Mbed TLS error codes can combine a high-level error code and a
@@ -367,11 +374,7 @@
 /* Key management */
 /****************************************************************/
 
-#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) || \
-    defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
+#if defined(MBEDTLS_ECP_LIGHT)
 mbedtls_ecp_group_id mbedtls_ecc_group_of_psa(psa_ecc_family_t curve,
                                               size_t bits,
                                               int bits_is_sloppy)
@@ -463,11 +466,7 @@
     (void) bits_is_sloppy;
     return MBEDTLS_ECP_DP_NONE;
 }
-#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) ||
-          defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ||
-          defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
-          defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) ||
-          defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 psa_status_t psa_validate_unstructured_key_bit_size(psa_key_type_t type,
                                                     size_t bits)
@@ -916,14 +915,27 @@
     return PSA_SUCCESS;
 }
 
-psa_status_t psa_get_and_lock_key_slot_with_policy(
+/** Get the description of a key given its identifier and policy constraints
+ *  and lock it.
+ *
+ * The key must have allow all the usage flags set in \p usage. If \p alg is
+ * nonzero, the key must allow operations with this algorithm. If \p alg is
+ * zero, the algorithm is not checked.
+ *
+ * In case of a persistent key, the function loads the description of the key
+ * into a key slot if not already done.
+ *
+ * On success, the returned key slot is locked. It is the responsibility of
+ * the caller to unlock the key slot when it does not access it anymore.
+ */
+static psa_status_t psa_get_and_lock_key_slot_with_policy(
     mbedtls_svc_key_id_t key,
     psa_key_slot_t **p_slot,
     psa_key_usage_t usage,
     psa_algorithm_t alg)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_key_slot_t *slot;
+    psa_key_slot_t *slot = NULL;
 
     status = psa_get_and_lock_key_slot(key, p_slot);
     if (status != PSA_SUCCESS) {
@@ -1471,14 +1483,15 @@
     return (status == PSA_SUCCESS) ? unlock_status : status;
 }
 
-#if defined(static_assert)
-static_assert((MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE) == 0,
-              "One or more key attribute flag is listed as both external-only and dual-use");
-static_assert((PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE) == 0,
-              "One or more key attribute flag is listed as both internal-only and dual-use");
-static_assert((PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY) == 0,
-              "One or more key attribute flag is listed as both internal-only and external-only");
-#endif
+MBEDTLS_STATIC_ASSERT(
+    (MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE) == 0,
+    "One or more key attribute flag is listed as both external-only and dual-use")
+MBEDTLS_STATIC_ASSERT(
+    (PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_DUAL_USE) == 0,
+    "One or more key attribute flag is listed as both internal-only and dual-use")
+MBEDTLS_STATIC_ASSERT(
+    (PSA_KA_MASK_INTERNAL_ONLY & MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY) == 0,
+    "One or more key attribute flag is listed as both internal-only and external-only")
 
 /** Validate that a key policy is internally well-formed.
  *
@@ -1742,11 +1755,10 @@
             psa_key_slot_number_t slot_number =
                 psa_key_slot_get_slot_number(slot);
 
-#if defined(static_assert)
-            static_assert(sizeof(slot_number) ==
-                          sizeof(data.slot_number),
-                          "Slot number size does not match psa_se_key_data_storage_t");
-#endif
+            MBEDTLS_STATIC_ASSERT(sizeof(slot_number) ==
+                                  sizeof(data.slot_number),
+                                  "Slot number size does not match psa_se_key_data_storage_t");
+
             memcpy(&data.slot_number, &slot_number, sizeof(slot_number));
             status = psa_save_persistent_key(&slot->attr,
                                              (uint8_t *) &data,
@@ -4211,7 +4223,7 @@
     status = psa_driver_wrapper_cipher_encrypt(
         &attributes, slot->key.data, slot->key.bytes,
         alg, local_iv, default_iv_length, input, input_length,
-        mbedtls_buffer_offset(output, default_iv_length),
+        psa_crypto_buffer_offset(output, default_iv_length),
         output_size - default_iv_length, output_length);
 
 exit:
@@ -5061,13 +5073,13 @@
                                      operation->ctx.tls12_prf.label_length);
             mbedtls_free(operation->ctx.tls12_prf.label);
         }
-
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS)
         if (operation->ctx.tls12_prf.other_secret != NULL) {
             mbedtls_platform_zeroize(operation->ctx.tls12_prf.other_secret,
                                      operation->ctx.tls12_prf.other_secret_length);
             mbedtls_free(operation->ctx.tls12_prf.other_secret);
         }
-
+#endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS */
         status = PSA_SUCCESS;
 
         /* We leave the fields Ai and output_block to be erased safely by the
@@ -5524,8 +5536,8 @@
  * Note: Function allocates memory for *data buffer, so given *data should be
  *       always NULL.
  */
-#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) || \
+#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) || \
+    defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
@@ -5536,6 +5548,7 @@
     uint8_t **data
     )
 {
+#if defined(MBEDTLS_ECP_LIGHT)
     unsigned key_out_of_range = 1;
     mbedtls_mpi k;
     mbedtls_mpi diff_N_2;
@@ -5619,6 +5632,13 @@
     mbedtls_mpi_free(&k);
     mbedtls_mpi_free(&diff_N_2);
     return status;
+#else /* MBEDTLS_ECP_LIGHT */
+    (void) slot;
+    (void) bits;
+    (void) operation;
+    (void) data;
+    return PSA_ERROR_NOT_SUPPORTED;
+#endif /* MBEDTLS_ECP_LIGHT */
 }
 
 /* ECC keys on a Montgomery elliptic curve draws a byte string whose length
@@ -5685,8 +5705,8 @@
 
     return status;
 }
-#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) ||
-          defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ||
+#endif /* defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) ||
+          defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) */
@@ -5705,8 +5725,8 @@
         return PSA_ERROR_INVALID_ARGUMENT;
     }
 
-#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) || \
+#if defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) || \
+    defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH)
@@ -5726,8 +5746,8 @@
             }
         }
     } else
-#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR) ||
-          defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_PUBLIC_KEY) ||
+#endif /* defined(PSA_WANT_KEY_TYPE_ECC_KEY_PAIR) ||
+          defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA) ||
           defined(MBEDTLS_PSA_BUILTIN_ALG_ECDH) */
@@ -6457,6 +6477,27 @@
     return status;
 }
 
+static psa_status_t psa_key_derivation_input_integer_internal(
+    psa_key_derivation_operation_t *operation,
+    psa_key_derivation_step_t step,
+    uint64_t value)
+{
+    psa_status_t status;
+    psa_algorithm_t kdf_alg = psa_key_derivation_get_kdf_alg(operation);
+
+    {
+        (void) step;
+        (void) value;
+        (void) kdf_alg;
+        status = PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    if (status != PSA_SUCCESS) {
+        psa_key_derivation_abort(operation);
+    }
+    return status;
+}
+
 psa_status_t psa_key_derivation_input_bytes(
     psa_key_derivation_operation_t *operation,
     psa_key_derivation_step_t step,
@@ -6468,6 +6509,14 @@
                                              data, data_length);
 }
 
+psa_status_t psa_key_derivation_input_integer(
+    psa_key_derivation_operation_t *operation,
+    psa_key_derivation_step_t step,
+    uint64_t value)
+{
+    return psa_key_derivation_input_integer_internal(operation, step, value);
+}
+
 psa_status_t psa_key_derivation_input_key(
     psa_key_derivation_operation_t *operation,
     psa_key_derivation_step_t step,
@@ -7108,6 +7157,13 @@
         return PSA_SUCCESS;
     }
 
+    /* Init drivers */
+    status = psa_driver_wrapper_init();
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+    global_data.drivers_initialized = 1;
+
     /* Initialize and seed the random generator. */
     mbedtls_psa_random_init(&global_data.rng);
     global_data.rng_state = RNG_INITIALIZED;
@@ -7122,12 +7178,6 @@
         goto exit;
     }
 
-    /* Init drivers */
-    status = psa_driver_wrapper_init();
-    if (status != PSA_SUCCESS) {
-        goto exit;
-    }
-
 #if defined(PSA_CRYPTO_STORAGE_HAS_TRANSACTIONS)
     status = psa_crypto_load_transaction();
     if (status == PSA_SUCCESS) {
@@ -7152,4 +7202,827 @@
     return status;
 }
 
+psa_status_t psa_crypto_driver_pake_get_password_len(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    size_t *password_len)
+{
+    if (inputs->password_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    *password_len = inputs->password_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_password(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    uint8_t *buffer, size_t buffer_size, size_t *buffer_length)
+{
+    if (inputs->password_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (buffer_size < inputs->password_len) {
+        return PSA_ERROR_BUFFER_TOO_SMALL;
+    }
+
+    memcpy(buffer, inputs->password, inputs->password_len);
+    *buffer_length = inputs->password_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_user_len(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    size_t *user_len)
+{
+    if (inputs->user_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    *user_len = inputs->user_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_user(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    uint8_t *user_id, size_t user_id_size, size_t *user_id_len)
+{
+    if (inputs->user_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (user_id_size < inputs->user_len) {
+        return PSA_ERROR_BUFFER_TOO_SMALL;
+    }
+
+    memcpy(user_id, inputs->user, inputs->user_len);
+    *user_id_len = inputs->user_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_peer_len(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    size_t *peer_len)
+{
+    if (inputs->peer_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    *peer_len = inputs->peer_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_peer(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    uint8_t *peer_id, size_t peer_id_size, size_t *peer_id_length)
+{
+    if (inputs->peer_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (peer_id_size < inputs->peer_len) {
+        return PSA_ERROR_BUFFER_TOO_SMALL;
+    }
+
+    memcpy(peer_id, inputs->peer, inputs->peer_len);
+    *peer_id_length = inputs->peer_len;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_crypto_driver_pake_get_cipher_suite(
+    const psa_crypto_driver_pake_inputs_t *inputs,
+    psa_pake_cipher_suite_t *cipher_suite)
+{
+    if (inputs->cipher_suite.algorithm == PSA_ALG_NONE) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    *cipher_suite = inputs->cipher_suite;
+
+    return PSA_SUCCESS;
+}
+
+psa_status_t psa_pake_setup(
+    psa_pake_operation_t *operation,
+    const psa_pake_cipher_suite_t *cipher_suite)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_SETUP) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    if (PSA_ALG_IS_PAKE(cipher_suite->algorithm) == 0 ||
+        PSA_ALG_IS_HASH(cipher_suite->hash) == 0) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    memset(&operation->data.inputs, 0, sizeof(operation->data.inputs));
+
+    operation->alg = cipher_suite->algorithm;
+    operation->primitive = PSA_PAKE_PRIMITIVE(cipher_suite->type,
+                                              cipher_suite->family, cipher_suite->bits);
+    operation->data.inputs.cipher_suite = *cipher_suite;
+
+#if defined(PSA_WANT_ALG_JPAKE)
+    if (operation->alg == PSA_ALG_JPAKE) {
+        psa_jpake_computation_stage_t *computation_stage =
+            &operation->computation_stage.jpake;
+
+        computation_stage->state = PSA_PAKE_STATE_SETUP;
+        computation_stage->sequence = PSA_PAKE_SEQ_INVALID;
+        computation_stage->input_step = PSA_PAKE_STEP_X1_X2;
+        computation_stage->output_step = PSA_PAKE_STEP_X1_X2;
+    } else
+#endif /* PSA_WANT_ALG_JPAKE */
+    {
+        status = PSA_ERROR_NOT_SUPPORTED;
+        goto exit;
+    }
+
+    operation->stage = PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS;
+
+    return PSA_SUCCESS;
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+psa_status_t psa_pake_set_password_key(
+    psa_pake_operation_t *operation,
+    mbedtls_svc_key_id_t password)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_key_slot_t *slot = NULL;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    status = psa_get_and_lock_key_slot_with_policy(password, &slot,
+                                                   PSA_KEY_USAGE_DERIVE,
+                                                   operation->alg);
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+
+    psa_key_attributes_t attributes = {
+        .core = slot->attr
+    };
+
+    psa_key_type_t type = psa_get_key_type(&attributes);
+
+    if (type != PSA_KEY_TYPE_PASSWORD &&
+        type != PSA_KEY_TYPE_PASSWORD_HASH) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    operation->data.inputs.password = mbedtls_calloc(1, slot->key.bytes);
+    if (operation->data.inputs.password == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto exit;
+    }
+
+    memcpy(operation->data.inputs.password, slot->key.data, slot->key.bytes);
+    operation->data.inputs.password_len = slot->key.bytes;
+    operation->data.inputs.attributes = attributes;
+exit:
+    if (status != PSA_SUCCESS) {
+        psa_pake_abort(operation);
+    }
+    unlock_status = psa_unlock_key_slot(slot);
+    return (status == PSA_SUCCESS) ? unlock_status : status;
+}
+
+psa_status_t psa_pake_set_user(
+    psa_pake_operation_t *operation,
+    const uint8_t *user_id,
+    size_t user_id_len)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    if (user_id_len == 0) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    if (operation->data.inputs.user_len != 0) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    operation->data.inputs.user = mbedtls_calloc(1, user_id_len);
+    if (operation->data.inputs.user == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto exit;
+    }
+
+    memcpy(operation->data.inputs.user, user_id, user_id_len);
+    operation->data.inputs.user_len = user_id_len;
+
+    return PSA_SUCCESS;
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+psa_status_t psa_pake_set_peer(
+    psa_pake_operation_t *operation,
+    const uint8_t *peer_id,
+    size_t peer_id_len)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    if (peer_id_len == 0) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    if (operation->data.inputs.peer_len != 0) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    operation->data.inputs.peer = mbedtls_calloc(1, peer_id_len);
+    if (operation->data.inputs.peer == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto exit;
+    }
+
+    memcpy(operation->data.inputs.peer, peer_id, peer_id_len);
+    operation->data.inputs.peer_len = peer_id_len;
+
+    return PSA_SUCCESS;
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+psa_status_t psa_pake_set_role(
+    psa_pake_operation_t *operation,
+    psa_pake_role_t role)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    switch (operation->alg) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        case PSA_ALG_JPAKE:
+            if (role == PSA_PAKE_ROLE_NONE) {
+                return PSA_SUCCESS;
+            }
+            status = PSA_ERROR_INVALID_ARGUMENT;
+            break;
+#endif
+        default:
+            (void) role;
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto exit;
+    }
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+/* Auxiliary function to convert core computation stage(step, sequence, state) to single driver step. */
+#if defined(PSA_WANT_ALG_JPAKE)
+static psa_crypto_driver_pake_step_t convert_jpake_computation_stage_to_driver_step(
+    psa_jpake_computation_stage_t *stage)
+{
+    switch (stage->state) {
+        case PSA_PAKE_OUTPUT_X1_X2:
+        case PSA_PAKE_INPUT_X1_X2:
+            switch (stage->sequence) {
+                case PSA_PAKE_X1_STEP_KEY_SHARE:
+                    return PSA_JPAKE_X1_STEP_KEY_SHARE;
+                case PSA_PAKE_X1_STEP_ZK_PUBLIC:
+                    return PSA_JPAKE_X1_STEP_ZK_PUBLIC;
+                case PSA_PAKE_X1_STEP_ZK_PROOF:
+                    return PSA_JPAKE_X1_STEP_ZK_PROOF;
+                case PSA_PAKE_X2_STEP_KEY_SHARE:
+                    return PSA_JPAKE_X2_STEP_KEY_SHARE;
+                case PSA_PAKE_X2_STEP_ZK_PUBLIC:
+                    return PSA_JPAKE_X2_STEP_ZK_PUBLIC;
+                case PSA_PAKE_X2_STEP_ZK_PROOF:
+                    return PSA_JPAKE_X2_STEP_ZK_PROOF;
+                default:
+                    return PSA_JPAKE_STEP_INVALID;
+            }
+            break;
+        case PSA_PAKE_OUTPUT_X2S:
+            switch (stage->sequence) {
+                case PSA_PAKE_X1_STEP_KEY_SHARE:
+                    return PSA_JPAKE_X2S_STEP_KEY_SHARE;
+                case PSA_PAKE_X1_STEP_ZK_PUBLIC:
+                    return PSA_JPAKE_X2S_STEP_ZK_PUBLIC;
+                case PSA_PAKE_X1_STEP_ZK_PROOF:
+                    return PSA_JPAKE_X2S_STEP_ZK_PROOF;
+                default:
+                    return PSA_JPAKE_STEP_INVALID;
+            }
+            break;
+        case PSA_PAKE_INPUT_X4S:
+            switch (stage->sequence) {
+                case PSA_PAKE_X1_STEP_KEY_SHARE:
+                    return PSA_JPAKE_X4S_STEP_KEY_SHARE;
+                case PSA_PAKE_X1_STEP_ZK_PUBLIC:
+                    return PSA_JPAKE_X4S_STEP_ZK_PUBLIC;
+                case PSA_PAKE_X1_STEP_ZK_PROOF:
+                    return PSA_JPAKE_X4S_STEP_ZK_PROOF;
+                default:
+                    return PSA_JPAKE_STEP_INVALID;
+            }
+            break;
+        default:
+            return PSA_JPAKE_STEP_INVALID;
+    }
+    return PSA_JPAKE_STEP_INVALID;
+}
+#endif /* PSA_WANT_ALG_JPAKE */
+
+static psa_status_t psa_pake_complete_inputs(
+    psa_pake_operation_t *operation)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    /* Create copy of the inputs on stack as inputs share memory
+       with the driver context which will be setup by the driver. */
+    psa_crypto_driver_pake_inputs_t inputs = operation->data.inputs;
+
+    if (inputs.password_len == 0) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (operation->alg == PSA_ALG_JPAKE) {
+        if (inputs.user_len == 0 || inputs.peer_len == 0) {
+            return PSA_ERROR_BAD_STATE;
+        }
+    }
+
+    /* Clear driver context */
+    mbedtls_platform_zeroize(&operation->data, sizeof(operation->data));
+
+    status = psa_driver_wrapper_pake_setup(operation, &inputs);
+
+    /* Driver is responsible for creating its own copy of the password. */
+    mbedtls_platform_zeroize(inputs.password, inputs.password_len);
+    mbedtls_free(inputs.password);
+
+    /* User and peer are translated to role. */
+    mbedtls_free(inputs.user);
+    mbedtls_free(inputs.peer);
+
+    if (status == PSA_SUCCESS) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        if (operation->alg == PSA_ALG_JPAKE) {
+            operation->stage = PSA_PAKE_OPERATION_STAGE_COMPUTATION;
+            psa_jpake_computation_stage_t *computation_stage =
+                &operation->computation_stage.jpake;
+            computation_stage->state = PSA_PAKE_STATE_READY;
+            computation_stage->sequence = PSA_PAKE_SEQ_INVALID;
+            computation_stage->input_step = PSA_PAKE_STEP_X1_X2;
+            computation_stage->output_step = PSA_PAKE_STEP_X1_X2;
+        } else
+#endif /* PSA_WANT_ALG_JPAKE */
+        {
+            status = PSA_ERROR_NOT_SUPPORTED;
+        }
+    }
+    return status;
+}
+
+#if defined(PSA_WANT_ALG_JPAKE)
+static psa_status_t psa_jpake_output_prologue(
+    psa_pake_operation_t *operation,
+    psa_pake_step_t step)
+{
+    if (step != PSA_PAKE_STEP_KEY_SHARE &&
+        step != PSA_PAKE_STEP_ZK_PUBLIC &&
+        step != PSA_PAKE_STEP_ZK_PROOF) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    psa_jpake_computation_stage_t *computation_stage =
+        &operation->computation_stage.jpake;
+
+    if (computation_stage->state == PSA_PAKE_STATE_INVALID) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (computation_stage->state != PSA_PAKE_STATE_READY &&
+        computation_stage->state != PSA_PAKE_OUTPUT_X1_X2 &&
+        computation_stage->state != PSA_PAKE_OUTPUT_X2S) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (computation_stage->state == PSA_PAKE_STATE_READY) {
+        if (step != PSA_PAKE_STEP_KEY_SHARE) {
+            return PSA_ERROR_BAD_STATE;
+        }
+
+        switch (computation_stage->output_step) {
+            case PSA_PAKE_STEP_X1_X2:
+                computation_stage->state = PSA_PAKE_OUTPUT_X1_X2;
+                break;
+            case PSA_PAKE_STEP_X2S:
+                computation_stage->state = PSA_PAKE_OUTPUT_X2S;
+                break;
+            default:
+                return PSA_ERROR_BAD_STATE;
+        }
+
+        computation_stage->sequence = PSA_PAKE_X1_STEP_KEY_SHARE;
+    }
+
+    /* Check if step matches current sequence */
+    switch (computation_stage->sequence) {
+        case PSA_PAKE_X1_STEP_KEY_SHARE:
+        case PSA_PAKE_X2_STEP_KEY_SHARE:
+            if (step != PSA_PAKE_STEP_KEY_SHARE) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        case PSA_PAKE_X1_STEP_ZK_PUBLIC:
+        case PSA_PAKE_X2_STEP_ZK_PUBLIC:
+            if (step != PSA_PAKE_STEP_ZK_PUBLIC) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        case PSA_PAKE_X1_STEP_ZK_PROOF:
+        case PSA_PAKE_X2_STEP_ZK_PROOF:
+            if (step != PSA_PAKE_STEP_ZK_PROOF) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        default:
+            return PSA_ERROR_BAD_STATE;
+    }
+
+    return PSA_SUCCESS;
+}
+
+static psa_status_t psa_jpake_output_epilogue(
+    psa_pake_operation_t *operation)
+{
+    psa_jpake_computation_stage_t *computation_stage =
+        &operation->computation_stage.jpake;
+
+    if ((computation_stage->state == PSA_PAKE_OUTPUT_X1_X2 &&
+         computation_stage->sequence == PSA_PAKE_X2_STEP_ZK_PROOF) ||
+        (computation_stage->state == PSA_PAKE_OUTPUT_X2S &&
+         computation_stage->sequence == PSA_PAKE_X1_STEP_ZK_PROOF)) {
+        computation_stage->state = PSA_PAKE_STATE_READY;
+        computation_stage->output_step++;
+        computation_stage->sequence = PSA_PAKE_SEQ_INVALID;
+    } else {
+        computation_stage->sequence++;
+    }
+
+    return PSA_SUCCESS;
+}
+#endif /* PSA_WANT_ALG_JPAKE */
+
+psa_status_t psa_pake_output(
+    psa_pake_operation_t *operation,
+    psa_pake_step_t step,
+    uint8_t *output,
+    size_t output_size,
+    size_t *output_length)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_crypto_driver_pake_step_t driver_step = PSA_JPAKE_STEP_INVALID;
+    *output_length = 0;
+
+    if (operation->stage == PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = psa_pake_complete_inputs(operation);
+        if (status != PSA_SUCCESS) {
+            goto exit;
+        }
+    }
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COMPUTATION) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    if (output_size == 0) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    switch (operation->alg) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        case PSA_ALG_JPAKE:
+            status = psa_jpake_output_prologue(operation, step);
+            if (status != PSA_SUCCESS) {
+                goto exit;
+            }
+            driver_step = convert_jpake_computation_stage_to_driver_step(
+                &operation->computation_stage.jpake);
+            break;
+#endif /* PSA_WANT_ALG_JPAKE */
+        default:
+            (void) step;
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto exit;
+    }
+
+    status = psa_driver_wrapper_pake_output(operation, driver_step,
+                                            output, output_size, output_length);
+
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+
+    switch (operation->alg) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        case PSA_ALG_JPAKE:
+            status = psa_jpake_output_epilogue(operation);
+            if (status != PSA_SUCCESS) {
+                goto exit;
+            }
+            break;
+#endif /* PSA_WANT_ALG_JPAKE */
+        default:
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto exit;
+    }
+
+    return PSA_SUCCESS;
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+#if defined(PSA_WANT_ALG_JPAKE)
+static psa_status_t psa_jpake_input_prologue(
+    psa_pake_operation_t *operation,
+    psa_pake_step_t step)
+{
+    if (step != PSA_PAKE_STEP_KEY_SHARE &&
+        step != PSA_PAKE_STEP_ZK_PUBLIC &&
+        step != PSA_PAKE_STEP_ZK_PROOF) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+    psa_jpake_computation_stage_t *computation_stage =
+        &operation->computation_stage.jpake;
+
+    if (computation_stage->state == PSA_PAKE_STATE_INVALID) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (computation_stage->state != PSA_PAKE_STATE_READY &&
+        computation_stage->state != PSA_PAKE_INPUT_X1_X2 &&
+        computation_stage->state != PSA_PAKE_INPUT_X4S) {
+        return PSA_ERROR_BAD_STATE;
+    }
+
+    if (computation_stage->state == PSA_PAKE_STATE_READY) {
+        if (step != PSA_PAKE_STEP_KEY_SHARE) {
+            return PSA_ERROR_BAD_STATE;
+        }
+
+        switch (computation_stage->input_step) {
+            case PSA_PAKE_STEP_X1_X2:
+                computation_stage->state = PSA_PAKE_INPUT_X1_X2;
+                break;
+            case PSA_PAKE_STEP_X2S:
+                computation_stage->state = PSA_PAKE_INPUT_X4S;
+                break;
+            default:
+                return PSA_ERROR_BAD_STATE;
+        }
+
+        computation_stage->sequence = PSA_PAKE_X1_STEP_KEY_SHARE;
+    }
+
+    /* Check if step matches current sequence */
+    switch (computation_stage->sequence) {
+        case PSA_PAKE_X1_STEP_KEY_SHARE:
+        case PSA_PAKE_X2_STEP_KEY_SHARE:
+            if (step != PSA_PAKE_STEP_KEY_SHARE) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        case PSA_PAKE_X1_STEP_ZK_PUBLIC:
+        case PSA_PAKE_X2_STEP_ZK_PUBLIC:
+            if (step != PSA_PAKE_STEP_ZK_PUBLIC) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        case PSA_PAKE_X1_STEP_ZK_PROOF:
+        case PSA_PAKE_X2_STEP_ZK_PROOF:
+            if (step != PSA_PAKE_STEP_ZK_PROOF) {
+                return PSA_ERROR_BAD_STATE;
+            }
+            break;
+
+        default:
+            return PSA_ERROR_BAD_STATE;
+    }
+
+    return PSA_SUCCESS;
+}
+
+static psa_status_t psa_jpake_input_epilogue(
+    psa_pake_operation_t *operation)
+{
+    psa_jpake_computation_stage_t *computation_stage =
+        &operation->computation_stage.jpake;
+
+    if ((computation_stage->state == PSA_PAKE_INPUT_X1_X2 &&
+         computation_stage->sequence == PSA_PAKE_X2_STEP_ZK_PROOF) ||
+        (computation_stage->state == PSA_PAKE_INPUT_X4S &&
+         computation_stage->sequence == PSA_PAKE_X1_STEP_ZK_PROOF)) {
+        computation_stage->state = PSA_PAKE_STATE_READY;
+        computation_stage->input_step++;
+        computation_stage->sequence = PSA_PAKE_SEQ_INVALID;
+    } else {
+        computation_stage->sequence++;
+    }
+
+    return PSA_SUCCESS;
+}
+#endif /* PSA_WANT_ALG_JPAKE */
+
+psa_status_t psa_pake_input(
+    psa_pake_operation_t *operation,
+    psa_pake_step_t step,
+    const uint8_t *input,
+    size_t input_length)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_crypto_driver_pake_step_t driver_step = PSA_JPAKE_STEP_INVALID;
+    const size_t max_input_length = (size_t) PSA_PAKE_INPUT_SIZE(operation->alg,
+                                                                 operation->primitive,
+                                                                 step);
+
+    if (operation->stage == PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        status = psa_pake_complete_inputs(operation);
+        if (status != PSA_SUCCESS) {
+            goto exit;
+        }
+    }
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COMPUTATION) {
+        status =  PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+    if (input_length == 0 || input_length > max_input_length) {
+        status = PSA_ERROR_INVALID_ARGUMENT;
+        goto exit;
+    }
+
+    switch (operation->alg) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        case PSA_ALG_JPAKE:
+            status = psa_jpake_input_prologue(operation, step);
+            if (status != PSA_SUCCESS) {
+                goto exit;
+            }
+            driver_step = convert_jpake_computation_stage_to_driver_step(
+                &operation->computation_stage.jpake);
+            break;
+#endif /* PSA_WANT_ALG_JPAKE */
+        default:
+            (void) step;
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto exit;
+    }
+
+    status = psa_driver_wrapper_pake_input(operation, driver_step,
+                                           input, input_length);
+
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+
+    switch (operation->alg) {
+#if defined(PSA_WANT_ALG_JPAKE)
+        case PSA_ALG_JPAKE:
+            status = psa_jpake_input_epilogue(operation);
+            if (status != PSA_SUCCESS) {
+                goto exit;
+            }
+            break;
+#endif /* PSA_WANT_ALG_JPAKE */
+        default:
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto exit;
+    }
+
+    return PSA_SUCCESS;
+exit:
+    psa_pake_abort(operation);
+    return status;
+}
+
+psa_status_t psa_pake_get_implicit_key(
+    psa_pake_operation_t *operation,
+    psa_key_derivation_operation_t *output)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    psa_status_t abort_status = PSA_ERROR_CORRUPTION_DETECTED;
+    uint8_t shared_key[MBEDTLS_PSA_JPAKE_BUFFER_SIZE];
+    size_t shared_key_len = 0;
+
+    if (operation->stage != PSA_PAKE_OPERATION_STAGE_COMPUTATION) {
+        status = PSA_ERROR_BAD_STATE;
+        goto exit;
+    }
+
+#if defined(PSA_WANT_ALG_JPAKE)
+    if (operation->alg == PSA_ALG_JPAKE) {
+        psa_jpake_computation_stage_t *computation_stage =
+            &operation->computation_stage.jpake;
+        if (computation_stage->input_step != PSA_PAKE_STEP_DERIVE ||
+            computation_stage->output_step != PSA_PAKE_STEP_DERIVE) {
+            status = PSA_ERROR_BAD_STATE;
+            goto exit;
+        }
+    } else
+#endif /* PSA_WANT_ALG_JPAKE */
+    {
+        status = PSA_ERROR_NOT_SUPPORTED;
+        goto exit;
+    }
+
+    status = psa_driver_wrapper_pake_get_implicit_key(operation,
+                                                      shared_key,
+                                                      sizeof(shared_key),
+                                                      &shared_key_len);
+
+    if (status != PSA_SUCCESS) {
+        goto exit;
+    }
+
+    status = psa_key_derivation_input_bytes(output,
+                                            PSA_KEY_DERIVATION_INPUT_SECRET,
+                                            shared_key,
+                                            shared_key_len);
+
+    mbedtls_platform_zeroize(shared_key, sizeof(shared_key));
+exit:
+    abort_status = psa_pake_abort(operation);
+    return status == PSA_SUCCESS ? abort_status : status;
+}
+
+psa_status_t psa_pake_abort(
+    psa_pake_operation_t *operation)
+{
+    psa_status_t status = PSA_SUCCESS;
+
+    if (operation->stage == PSA_PAKE_OPERATION_STAGE_COMPUTATION) {
+        status = psa_driver_wrapper_pake_abort(operation);
+    }
+
+    if (operation->stage == PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
+        if (operation->data.inputs.password != NULL) {
+            mbedtls_platform_zeroize(operation->data.inputs.password,
+                                     operation->data.inputs.password_len);
+            mbedtls_free(operation->data.inputs.password);
+        }
+        if (operation->data.inputs.user != NULL) {
+            mbedtls_free(operation->data.inputs.user);
+        }
+        if (operation->data.inputs.peer != NULL) {
+            mbedtls_free(operation->data.inputs.peer);
+        }
+    }
+    memset(operation, 0, sizeof(psa_pake_operation_t));
+
+    return status;
+}
+
 #endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index 5260cf7..8bc1b64 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -26,6 +26,18 @@
 #include "psa/crypto.h"
 #include "psa/crypto_se_driver.h"
 
+/**
+ * Tell if PSA is ready for this hash.
+ *
+ * \note            For now, only checks the state of the driver subsystem,
+ *                  not the algorithm. Might do more in the future.
+ *
+ * \param hash_alg  The hash algorithm (ignored for now).
+ *
+ * \return 1 if the driver subsytem is ready, 0 otherwise.
+ */
+int psa_can_do_hash(psa_algorithm_t hash_alg);
+
 /** Constant-time buffer comparison
  *
  * \param[in]  a    Left-hand buffer for comparison.
@@ -182,24 +194,6 @@
 }
 #endif
 
-/** Get the description of a key given its identifier and policy constraints
- *  and lock it.
- *
- * The key must have allow all the usage flags set in \p usage. If \p alg is
- * nonzero, the key must allow operations with this algorithm. If \p alg is
- * zero, the algorithm is not checked.
- *
- * In case of a persistent key, the function loads the description of the key
- * into a key slot if not already done.
- *
- * On success, the returned key slot is locked. It is the responsibility of
- * the caller to unlock the key slot when it does not access it anymore.
- */
-psa_status_t psa_get_and_lock_key_slot_with_policy(mbedtls_svc_key_id_t key,
-                                                   psa_key_slot_t **p_slot,
-                                                   psa_key_usage_t usage,
-                                                   psa_algorithm_t alg);
-
 /** Completely wipe a slot in memory, including its policy.
  *
  * Persistent storage is not affected.
diff --git a/library/psa_crypto_core_common.h b/library/psa_crypto_core_common.h
new file mode 100644
index 0000000..dd72ab1
--- /dev/null
+++ b/library/psa_crypto_core_common.h
@@ -0,0 +1,64 @@
+/**
+ * \file psa_crypto_core_common.h
+ *
+ * \brief Utility macros for internal use in the PSA cryptography core.
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef PSA_CRYPTO_CORE_COMMON_H
+#define PSA_CRYPTO_CORE_COMMON_H
+
+/** Return an offset into a buffer.
+ *
+ * This is just the addition of an offset to a pointer, except that this
+ * function also accepts an offset of 0 into a buffer whose pointer is null.
+ * (`p + n` has undefined behavior when `p` is null, even when `n == 0`.
+ * A null pointer is a valid buffer pointer when the size is 0, for example
+ * as the result of `malloc(0)` on some platforms.)
+ *
+ * \param p     Pointer to a buffer of at least n bytes.
+ *              This may be \p NULL if \p n is zero.
+ * \param n     An offset in bytes.
+ * \return      Pointer to offset \p n in the buffer \p p.
+ *              Note that this is only a valid pointer if the size of the
+ *              buffer is at least \p n + 1.
+ */
+static inline unsigned char *psa_crypto_buffer_offset(
+    unsigned char *p, size_t n)
+{
+    return p == NULL ? NULL : p + n;
+}
+
+/** Return an offset into a read-only buffer.
+ *
+ * Similar to mbedtls_buffer_offset(), but for const pointers.
+ *
+ * \param p     Pointer to a buffer of at least n bytes.
+ *              This may be \p NULL if \p n is zero.
+ * \param n     An offset in bytes.
+ * \return      Pointer to offset \p n in the buffer \p p.
+ *              Note that this is only a valid pointer if the size of the
+ *              buffer is at least \p n + 1.
+ */
+static inline const unsigned char *psa_crypto_buffer_offset_const(
+    const unsigned char *p, size_t n)
+{
+    return p == NULL ? NULL : p + n;
+}
+
+#endif /* PSA_CRYPTO_CORE_COMMON_H */
diff --git a/library/psa_crypto_driver_wrappers.h b/library/psa_crypto_driver_wrappers.h
index b167506..cf8fe69 100644
--- a/library/psa_crypto_driver_wrappers.h
+++ b/library/psa_crypto_driver_wrappers.h
@@ -24,6 +24,10 @@
 #include "psa/crypto.h"
 #include "psa/crypto_driver_common.h"
 
+#if defined(MBEDTLS_P256M_EXAMPLE_DRIVER_ENABLED)
+#include "../3rdparty/p256-m/p256-m_driver_entrypoints.h"
+#endif /* MBEDTLS_P256M_EXAMPLE_DRIVER_ENABLED */
+
 /*
  * Initialization and termination functions
  */
@@ -408,6 +412,34 @@
     size_t shared_secret_size,
     size_t *shared_secret_length);
 
+/*
+ * PAKE functions.
+ */
+psa_status_t psa_driver_wrapper_pake_setup(
+    psa_pake_operation_t *operation,
+    const psa_crypto_driver_pake_inputs_t *inputs);
+
+psa_status_t psa_driver_wrapper_pake_output(
+    psa_pake_operation_t *operation,
+    psa_crypto_driver_pake_step_t step,
+    uint8_t *output,
+    size_t output_size,
+    size_t *output_length);
+
+psa_status_t psa_driver_wrapper_pake_input(
+    psa_pake_operation_t *operation,
+    psa_crypto_driver_pake_step_t step,
+    const uint8_t *input,
+    size_t input_length);
+
+psa_status_t psa_driver_wrapper_pake_get_implicit_key(
+    psa_pake_operation_t *operation,
+    uint8_t *output, size_t output_size,
+    size_t *output_length);
+
+psa_status_t psa_driver_wrapper_pake_abort(
+    psa_pake_operation_t *operation);
+
 #endif /* PSA_CRYPTO_DRIVER_WRAPPERS_H */
 
 /* End of automatically generated file. */
diff --git a/library/psa_crypto_pake.c b/library/psa_crypto_pake.c
index 1f9a8cb..4136614 100644
--- a/library/psa_crypto_pake.c
+++ b/library/psa_crypto_pake.c
@@ -24,6 +24,7 @@
 
 #include <psa/crypto.h>
 #include "psa_crypto_core.h"
+#include "psa_crypto_pake.h"
 #include "psa_crypto_slot_management.h"
 
 #include <mbedtls/ecjpake.h>
@@ -78,23 +79,6 @@
  *   psa_pake_abort()
  */
 
-enum psa_pake_step {
-    PSA_PAKE_STEP_INVALID       = 0,
-    PSA_PAKE_STEP_X1_X2         = 1,
-    PSA_PAKE_STEP_X2S           = 2,
-    PSA_PAKE_STEP_DERIVE        = 3,
-};
-
-enum psa_pake_state {
-    PSA_PAKE_STATE_INVALID      = 0,
-    PSA_PAKE_STATE_SETUP        = 1,
-    PSA_PAKE_STATE_READY        = 2,
-    PSA_PAKE_OUTPUT_X1_X2       = 3,
-    PSA_PAKE_OUTPUT_X2S         = 4,
-    PSA_PAKE_INPUT_X1_X2        = 5,
-    PSA_PAKE_INPUT_X4S          = 6,
-};
-
 /*
  * The first PAKE step shares the same sequences of the second PAKE step
  * but with a second set of KEY_SHARE/ZK_PUBLIC/ZK_PROOF outputs/inputs.
@@ -156,16 +140,6 @@
  *   psa_pake_get_implicit_key()
  *   => Input & Output Step = PSA_PAKE_STEP_INVALID
  */
-enum psa_pake_sequence {
-    PSA_PAKE_SEQ_INVALID        = 0,
-    PSA_PAKE_X1_STEP_KEY_SHARE  = 1,    /* also X2S & X4S KEY_SHARE */
-    PSA_PAKE_X1_STEP_ZK_PUBLIC  = 2,    /* also X2S & X4S ZK_PUBLIC */
-    PSA_PAKE_X1_STEP_ZK_PROOF   = 3,    /* also X2S & X4S ZK_PROOF */
-    PSA_PAKE_X2_STEP_KEY_SHARE  = 4,
-    PSA_PAKE_X2_STEP_ZK_PUBLIC  = 5,
-    PSA_PAKE_X2_STEP_ZK_PROOF   = 6,
-    PSA_PAKE_SEQ_END            = 7,
-};
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
 static psa_status_t mbedtls_ecjpake_to_psa_error(int ret)
@@ -190,272 +164,171 @@
 #endif
 
 #if defined(MBEDTLS_PSA_BUILTIN_PAKE)
-psa_status_t psa_pake_setup(psa_pake_operation_t *operation,
-                            const psa_pake_cipher_suite_t *cipher_suite)
-{
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    /* A context must be freshly initialized before it can be set up. */
-    if (operation->alg != PSA_ALG_NONE) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
-
-    if (cipher_suite == NULL ||
-        PSA_ALG_IS_PAKE(cipher_suite->algorithm) == 0 ||
-        (cipher_suite->type != PSA_PAKE_PRIMITIVE_TYPE_ECC &&
-         cipher_suite->type != PSA_PAKE_PRIMITIVE_TYPE_DH) ||
-        PSA_ALG_IS_HASH(cipher_suite->hash) == 0) {
-        status = PSA_ERROR_INVALID_ARGUMENT;
-        goto error;
-    }
-
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
-    if (cipher_suite->algorithm == PSA_ALG_JPAKE) {
-        if (cipher_suite->type != PSA_PAKE_PRIMITIVE_TYPE_ECC ||
-            cipher_suite->family != PSA_ECC_FAMILY_SECP_R1 ||
-            cipher_suite->bits != 256 ||
-            cipher_suite->hash != PSA_ALG_SHA_256) {
-            status = PSA_ERROR_NOT_SUPPORTED;
-            goto error;
-        }
-
-        operation->alg = cipher_suite->algorithm;
-
-        mbedtls_ecjpake_init(&operation->ctx.ecjpake);
-
-        operation->state = PSA_PAKE_STATE_SETUP;
-        operation->sequence = PSA_PAKE_SEQ_INVALID;
-        operation->input_step = PSA_PAKE_STEP_X1_X2;
-        operation->output_step = PSA_PAKE_STEP_X1_X2;
-
-        mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
-        operation->buffer_length = 0;
-        operation->buffer_offset = 0;
-
-        return PSA_SUCCESS;
-    } else
-#endif
-    status = PSA_ERROR_NOT_SUPPORTED;
-
-error:
-    psa_pake_abort(operation);
-    return status;
-}
-
-psa_status_t psa_pake_set_password_key(psa_pake_operation_t *operation,
-                                       mbedtls_svc_key_id_t password)
-{
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_key_attributes_t attributes = psa_key_attributes_init();
-    psa_key_type_t type;
-    psa_key_usage_t usage;
-    psa_key_slot_t *slot = NULL;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state != PSA_PAKE_STATE_SETUP) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
-
-    status = psa_get_key_attributes(password, &attributes);
-    if (status != PSA_SUCCESS) {
-        goto error;
-    }
-
-    type = psa_get_key_type(&attributes);
-    usage = psa_get_key_usage_flags(&attributes);
-
-    psa_reset_key_attributes(&attributes);
-
-    if (type != PSA_KEY_TYPE_PASSWORD &&
-        type != PSA_KEY_TYPE_PASSWORD_HASH) {
-        status = PSA_ERROR_INVALID_ARGUMENT;
-        goto error;
-    }
-
-    if ((usage & PSA_KEY_USAGE_DERIVE) == 0) {
-        status = PSA_ERROR_NOT_PERMITTED;
-        goto error;
-    }
-
-    if (operation->password != NULL) {
-        return PSA_ERROR_BAD_STATE;
-    }
-
-    status = psa_get_and_lock_key_slot_with_policy(password, &slot,
-                                                   PSA_KEY_USAGE_DERIVE,
-                                                   PSA_ALG_JPAKE);
-    if (status != PSA_SUCCESS) {
-        return status;
-    }
-
-    operation->password = mbedtls_calloc(1, slot->key.bytes);
-    if (operation->password == NULL) {
-        psa_unlock_key_slot(slot);
-        return PSA_ERROR_INSUFFICIENT_MEMORY;
-    }
-    memcpy(operation->password, slot->key.data, slot->key.bytes);
-    operation->password_len = slot->key.bytes;
-
-    status = psa_unlock_key_slot(slot);
-    if (status != PSA_SUCCESS) {
-        return status;
-    }
-
-    return PSA_SUCCESS;
-
-error:
-    psa_pake_abort(operation);
-    return status;
-}
-
-psa_status_t psa_pake_set_user(psa_pake_operation_t *operation,
-                               const uint8_t *user_id,
-                               size_t user_id_len)
-{
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state != PSA_PAKE_STATE_SETUP) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
-
-    if (user_id_len == 0 || user_id == NULL) {
-        status = PSA_ERROR_INVALID_ARGUMENT;
-        goto error;
-    }
-
-    status = PSA_ERROR_NOT_SUPPORTED;
-
-error:
-    psa_pake_abort(operation);
-    return status;
-}
-
-psa_status_t psa_pake_set_peer(psa_pake_operation_t *operation,
-                               const uint8_t *peer_id,
-                               size_t peer_id_len)
-{
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state != PSA_PAKE_STATE_SETUP) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
-
-    if (peer_id_len == 0 || peer_id == NULL) {
-        status = PSA_ERROR_INVALID_ARGUMENT;
-        goto error;
-    }
-
-    status = PSA_ERROR_NOT_SUPPORTED;
-
-error:
-    psa_pake_abort(operation);
-    return status;
-}
-
-psa_status_t psa_pake_set_role(psa_pake_operation_t *operation,
-                               psa_pake_role_t role)
-{
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state != PSA_PAKE_STATE_SETUP) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
-
-    if (role != PSA_PAKE_ROLE_NONE &&
-        role != PSA_PAKE_ROLE_FIRST &&
-        role != PSA_PAKE_ROLE_SECOND &&
-        role != PSA_PAKE_ROLE_CLIENT &&
-        role != PSA_PAKE_ROLE_SERVER) {
-        status = PSA_ERROR_INVALID_ARGUMENT;
-        goto error;
-    }
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
-    if (operation->alg == PSA_ALG_JPAKE) {
-        if (role != PSA_PAKE_ROLE_CLIENT &&
-            role != PSA_PAKE_ROLE_SERVER) {
-            return PSA_ERROR_NOT_SUPPORTED;
-        }
-
-        operation->role = role;
-
-        return PSA_SUCCESS;
-    } else
-#endif
-    status = PSA_ERROR_NOT_SUPPORTED;
-
-error:
-    psa_pake_abort(operation);
-    return status;
-}
-
-#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
-static psa_status_t psa_pake_ecjpake_setup(psa_pake_operation_t *operation)
+static psa_status_t psa_pake_ecjpake_setup(mbedtls_psa_pake_operation_t *operation)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_ecjpake_role role;
 
-    if (operation->role == PSA_PAKE_ROLE_CLIENT) {
-        role = MBEDTLS_ECJPAKE_CLIENT;
-    } else if (operation->role == PSA_PAKE_ROLE_SERVER) {
-        role = MBEDTLS_ECJPAKE_SERVER;
-    } else {
-        return PSA_ERROR_BAD_STATE;
-    }
+    mbedtls_ecjpake_init(&operation->ctx.jpake);
 
-    if (operation->password_len == 0) {
-        return PSA_ERROR_BAD_STATE;
-    }
-
-    ret = mbedtls_ecjpake_setup(&operation->ctx.ecjpake,
-                                role,
+    ret = mbedtls_ecjpake_setup(&operation->ctx.jpake,
+                                operation->role,
                                 MBEDTLS_MD_SHA256,
                                 MBEDTLS_ECP_DP_SECP256R1,
                                 operation->password,
                                 operation->password_len);
 
     mbedtls_platform_zeroize(operation->password, operation->password_len);
-    mbedtls_free(operation->password);
-    operation->password = NULL;
-    operation->password_len = 0;
 
     if (ret != 0) {
         return mbedtls_ecjpake_to_psa_error(ret);
     }
 
-    operation->state = PSA_PAKE_STATE_READY;
-
     return PSA_SUCCESS;
 }
 #endif
 
-static psa_status_t psa_pake_output_internal(
-    psa_pake_operation_t *operation,
-    psa_pake_step_t step,
+/* The only two JPAKE user/peer identifiers supported in built-in implementation. */
+static const uint8_t jpake_server_id[] = { 's', 'e', 'r', 'v', 'e', 'r' };
+static const uint8_t jpake_client_id[] = { 'c', 'l', 'i', 'e', 'n', 't' };
+
+psa_status_t mbedtls_psa_pake_setup(mbedtls_psa_pake_operation_t *operation,
+                                    const psa_crypto_driver_pake_inputs_t *inputs)
+{
+    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+    size_t user_len = 0, peer_len = 0, password_len = 0;
+    uint8_t *peer = NULL, *user = NULL;
+    size_t actual_user_len = 0, actual_peer_len = 0, actual_password_len = 0;
+    psa_pake_cipher_suite_t cipher_suite = psa_pake_cipher_suite_init();
+
+    status = psa_crypto_driver_pake_get_password_len(inputs, &password_len);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
+
+    psa_crypto_driver_pake_get_user_len(inputs, &user_len);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
+
+    psa_crypto_driver_pake_get_peer_len(inputs, &peer_len);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
+
+    status = psa_crypto_driver_pake_get_cipher_suite(inputs, &cipher_suite);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
+
+    operation->password = mbedtls_calloc(1, password_len);
+    if (operation->password == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto error;
+    }
+
+    user = mbedtls_calloc(1, user_len);
+    if (user == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto error;
+    }
+
+    peer = mbedtls_calloc(1, peer_len);
+    if (peer == NULL) {
+        status = PSA_ERROR_INSUFFICIENT_MEMORY;
+        goto error;
+    }
+
+    status = psa_crypto_driver_pake_get_password(inputs, operation->password,
+                                                 password_len, &actual_password_len);
+    if (status != PSA_SUCCESS) {
+        goto error;
+    }
+
+    status = psa_crypto_driver_pake_get_user(inputs, user,
+                                             user_len, &actual_user_len);
+    if (status != PSA_SUCCESS) {
+        goto error;
+    }
+
+    status = psa_crypto_driver_pake_get_peer(inputs, peer,
+                                             peer_len, &actual_peer_len);
+    if (status != PSA_SUCCESS) {
+        goto error;
+    }
+
+    operation->password_len = actual_password_len;
+    operation->alg = cipher_suite.algorithm;
+
+#if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
+    if (cipher_suite.algorithm == PSA_ALG_JPAKE) {
+        if (cipher_suite.type != PSA_PAKE_PRIMITIVE_TYPE_ECC ||
+            cipher_suite.family != PSA_ECC_FAMILY_SECP_R1 ||
+            cipher_suite.bits != 256 ||
+            cipher_suite.hash != PSA_ALG_SHA_256) {
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto error;
+        }
+
+        const size_t user_peer_len = sizeof(jpake_client_id); // client and server have the same length
+        if (actual_user_len != user_peer_len ||
+            actual_peer_len != user_peer_len) {
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto error;
+        }
+
+        if (memcmp(user, jpake_client_id, actual_user_len) == 0 &&
+            memcmp(peer, jpake_server_id, actual_peer_len) == 0) {
+            operation->role = MBEDTLS_ECJPAKE_CLIENT;
+        } else
+        if (memcmp(user, jpake_server_id, actual_user_len) == 0 &&
+            memcmp(peer, jpake_client_id, actual_peer_len) == 0) {
+            operation->role = MBEDTLS_ECJPAKE_SERVER;
+        } else {
+            status = PSA_ERROR_NOT_SUPPORTED;
+            goto error;
+        }
+
+        operation->buffer_length = 0;
+        operation->buffer_offset = 0;
+
+        status = psa_pake_ecjpake_setup(operation);
+        if (status != PSA_SUCCESS) {
+            goto error;
+        }
+
+        /* Role has been set, release user/peer buffers. */
+        mbedtls_free(user); mbedtls_free(peer);
+
+        return PSA_SUCCESS;
+    } else
+#else
+    (void) operation;
+    (void) inputs;
+#endif
+    { status = PSA_ERROR_NOT_SUPPORTED; }
+
+error:
+    mbedtls_free(user); mbedtls_free(peer);
+    /* In case of failure of the setup of a multipart operation, the PSA driver interface
+     * specifies that the core does not call any other driver entry point thus does not
+     * call mbedtls_psa_pake_abort(). Therefore call it here to do the needed clean
+     * up like freeing the memory that may have been allocated to store the password.
+     */
+    mbedtls_psa_pake_abort(operation);
+    return status;
+}
+
+static psa_status_t mbedtls_psa_pake_output_internal(
+    mbedtls_psa_pake_operation_t *operation,
+    psa_crypto_driver_pake_step_t step,
     uint8_t *output,
     size_t output_size,
     size_t *output_length)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     size_t length;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state == PSA_PAKE_STATE_INVALID) {
-        return PSA_ERROR_BAD_STATE;
-    }
-
-    if (output == NULL || output_size == 0 || output_length == NULL) {
-        return PSA_ERROR_INVALID_ARGUMENT;
-    }
+    (void) step; // Unused parameter
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
     /*
@@ -473,77 +346,11 @@
      * to return the right parts on each step.
      */
     if (operation->alg == PSA_ALG_JPAKE) {
-        if (step != PSA_PAKE_STEP_KEY_SHARE &&
-            step != PSA_PAKE_STEP_ZK_PUBLIC &&
-            step != PSA_PAKE_STEP_ZK_PROOF) {
-            return PSA_ERROR_INVALID_ARGUMENT;
-        }
-
-        if (operation->state == PSA_PAKE_STATE_SETUP) {
-            status = psa_pake_ecjpake_setup(operation);
-            if (status != PSA_SUCCESS) {
-                return status;
-            }
-        }
-
-        if (operation->state != PSA_PAKE_STATE_READY &&
-            operation->state != PSA_PAKE_OUTPUT_X1_X2 &&
-            operation->state != PSA_PAKE_OUTPUT_X2S) {
-            return PSA_ERROR_BAD_STATE;
-        }
-
-        if (operation->state == PSA_PAKE_STATE_READY) {
-            if (step != PSA_PAKE_STEP_KEY_SHARE) {
-                return PSA_ERROR_BAD_STATE;
-            }
-
-            switch (operation->output_step) {
-                case PSA_PAKE_STEP_X1_X2:
-                    operation->state = PSA_PAKE_OUTPUT_X1_X2;
-                    break;
-                case PSA_PAKE_STEP_X2S:
-                    operation->state = PSA_PAKE_OUTPUT_X2S;
-                    break;
-                default:
-                    return PSA_ERROR_BAD_STATE;
-            }
-
-            operation->sequence = PSA_PAKE_X1_STEP_KEY_SHARE;
-        }
-
-        /* Check if step matches current sequence */
-        switch (operation->sequence) {
-            case PSA_PAKE_X1_STEP_KEY_SHARE:
-            case PSA_PAKE_X2_STEP_KEY_SHARE:
-                if (step != PSA_PAKE_STEP_KEY_SHARE) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            case PSA_PAKE_X1_STEP_ZK_PUBLIC:
-            case PSA_PAKE_X2_STEP_ZK_PUBLIC:
-                if (step != PSA_PAKE_STEP_ZK_PUBLIC) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            case PSA_PAKE_X1_STEP_ZK_PROOF:
-            case PSA_PAKE_X2_STEP_ZK_PROOF:
-                if (step != PSA_PAKE_STEP_ZK_PROOF) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            default:
-                return PSA_ERROR_BAD_STATE;
-        }
-
         /* Initialize & write round on KEY_SHARE sequences */
-        if (operation->state == PSA_PAKE_OUTPUT_X1_X2 &&
-            operation->sequence == PSA_PAKE_X1_STEP_KEY_SHARE) {
-            ret = mbedtls_ecjpake_write_round_one(&operation->ctx.ecjpake,
+        if (step == PSA_JPAKE_X1_STEP_KEY_SHARE) {
+            ret = mbedtls_ecjpake_write_round_one(&operation->ctx.jpake,
                                                   operation->buffer,
-                                                  MBEDTLS_PSA_PAKE_BUFFER_SIZE,
+                                                  sizeof(operation->buffer),
                                                   &operation->buffer_length,
                                                   mbedtls_psa_get_random,
                                                   MBEDTLS_PSA_RANDOM_STATE);
@@ -552,11 +359,10 @@
             }
 
             operation->buffer_offset = 0;
-        } else if (operation->state == PSA_PAKE_OUTPUT_X2S &&
-                   operation->sequence == PSA_PAKE_X1_STEP_KEY_SHARE) {
-            ret = mbedtls_ecjpake_write_round_two(&operation->ctx.ecjpake,
+        } else if (step == PSA_JPAKE_X2S_STEP_KEY_SHARE) {
+            ret = mbedtls_ecjpake_write_round_two(&operation->ctx.jpake,
                                                   operation->buffer,
-                                                  MBEDTLS_PSA_PAKE_BUFFER_SIZE,
+                                                  sizeof(operation->buffer),
                                                   &operation->buffer_length,
                                                   mbedtls_psa_get_random,
                                                   MBEDTLS_PSA_RANDOM_STATE);
@@ -578,9 +384,8 @@
          * output with a length byte, even less a curve identifier, as that
          * information is already available.
          */
-        if (operation->state == PSA_PAKE_OUTPUT_X2S &&
-            operation->sequence == PSA_PAKE_X1_STEP_KEY_SHARE &&
-            operation->role == PSA_PAKE_ROLE_SERVER) {
+        if (step == PSA_JPAKE_X2S_STEP_KEY_SHARE &&
+            operation->role == MBEDTLS_ECJPAKE_SERVER) {
             /* Skip ECParameters, with is 3 bytes (RFC 8422) */
             operation->buffer_offset += 3;
         }
@@ -605,60 +410,44 @@
         operation->buffer_offset += length;
 
         /* Reset buffer after ZK_PROOF sequence */
-        if ((operation->state == PSA_PAKE_OUTPUT_X1_X2 &&
-             operation->sequence == PSA_PAKE_X2_STEP_ZK_PROOF) ||
-            (operation->state == PSA_PAKE_OUTPUT_X2S &&
-             operation->sequence == PSA_PAKE_X1_STEP_ZK_PROOF)) {
-            mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
+        if ((step == PSA_JPAKE_X2_STEP_ZK_PROOF) ||
+            (step == PSA_JPAKE_X2S_STEP_ZK_PROOF)) {
+            mbedtls_platform_zeroize(operation->buffer, sizeof(operation->buffer));
             operation->buffer_length = 0;
             operation->buffer_offset = 0;
-
-            operation->state = PSA_PAKE_STATE_READY;
-            operation->output_step++;
-            operation->sequence = PSA_PAKE_SEQ_INVALID;
-        } else {
-            operation->sequence++;
         }
 
         return PSA_SUCCESS;
     } else
+#else
+    (void) step;
+    (void) output;
+    (void) output_size;
+    (void) output_length;
 #endif
-    return PSA_ERROR_NOT_SUPPORTED;
+    { return PSA_ERROR_NOT_SUPPORTED; }
 }
 
-psa_status_t psa_pake_output(psa_pake_operation_t *operation,
-                             psa_pake_step_t step,
-                             uint8_t *output,
-                             size_t output_size,
-                             size_t *output_length)
+psa_status_t mbedtls_psa_pake_output(mbedtls_psa_pake_operation_t *operation,
+                                     psa_crypto_driver_pake_step_t step,
+                                     uint8_t *output,
+                                     size_t output_size,
+                                     size_t *output_length)
 {
-    psa_status_t status = psa_pake_output_internal(
+    psa_status_t status = mbedtls_psa_pake_output_internal(
         operation, step, output, output_size, output_length);
 
-    if (status != PSA_SUCCESS) {
-        psa_pake_abort(operation);
-    }
-
     return status;
 }
 
-static psa_status_t psa_pake_input_internal(
-    psa_pake_operation_t *operation,
-    psa_pake_step_t step,
+static psa_status_t mbedtls_psa_pake_input_internal(
+    mbedtls_psa_pake_operation_t *operation,
+    psa_crypto_driver_pake_step_t step,
     const uint8_t *input,
     size_t input_length)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state == PSA_PAKE_STATE_INVALID) {
-        return PSA_ERROR_BAD_STATE;
-    }
-
-    if (input == NULL || input_length == 0) {
-        return PSA_ERROR_INVALID_ARGUMENT;
-    }
+    (void) step; // Unused parameter
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
     /*
@@ -677,77 +466,6 @@
      * This causes any input error to be only detected on the last step.
      */
     if (operation->alg == PSA_ALG_JPAKE) {
-        if (step != PSA_PAKE_STEP_KEY_SHARE &&
-            step != PSA_PAKE_STEP_ZK_PUBLIC &&
-            step != PSA_PAKE_STEP_ZK_PROOF) {
-            return PSA_ERROR_INVALID_ARGUMENT;
-        }
-
-        const psa_pake_primitive_t prim = PSA_PAKE_PRIMITIVE(
-            PSA_PAKE_PRIMITIVE_TYPE_ECC, PSA_ECC_FAMILY_SECP_R1, 256);
-        if (input_length > (size_t) PSA_PAKE_INPUT_SIZE(PSA_ALG_JPAKE, prim, step)) {
-            return PSA_ERROR_INVALID_ARGUMENT;
-        }
-
-        if (operation->state == PSA_PAKE_STATE_SETUP) {
-            status = psa_pake_ecjpake_setup(operation);
-            if (status != PSA_SUCCESS) {
-                return status;
-            }
-        }
-
-        if (operation->state != PSA_PAKE_STATE_READY &&
-            operation->state != PSA_PAKE_INPUT_X1_X2 &&
-            operation->state != PSA_PAKE_INPUT_X4S) {
-            return PSA_ERROR_BAD_STATE;
-        }
-
-        if (operation->state == PSA_PAKE_STATE_READY) {
-            if (step != PSA_PAKE_STEP_KEY_SHARE) {
-                return PSA_ERROR_BAD_STATE;
-            }
-
-            switch (operation->input_step) {
-                case PSA_PAKE_STEP_X1_X2:
-                    operation->state = PSA_PAKE_INPUT_X1_X2;
-                    break;
-                case PSA_PAKE_STEP_X2S:
-                    operation->state = PSA_PAKE_INPUT_X4S;
-                    break;
-                default:
-                    return PSA_ERROR_BAD_STATE;
-            }
-
-            operation->sequence = PSA_PAKE_X1_STEP_KEY_SHARE;
-        }
-
-        /* Check if step matches current sequence */
-        switch (operation->sequence) {
-            case PSA_PAKE_X1_STEP_KEY_SHARE:
-            case PSA_PAKE_X2_STEP_KEY_SHARE:
-                if (step != PSA_PAKE_STEP_KEY_SHARE) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            case PSA_PAKE_X1_STEP_ZK_PUBLIC:
-            case PSA_PAKE_X2_STEP_ZK_PUBLIC:
-                if (step != PSA_PAKE_STEP_ZK_PUBLIC) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            case PSA_PAKE_X1_STEP_ZK_PROOF:
-            case PSA_PAKE_X2_STEP_ZK_PROOF:
-                if (step != PSA_PAKE_STEP_ZK_PROOF) {
-                    return PSA_ERROR_BAD_STATE;
-                }
-                break;
-
-            default:
-                return PSA_ERROR_BAD_STATE;
-        }
-
         /*
          * Copy input to local buffer and format it as the Mbed TLS API
          * expects, i.e. as defined by draft-cragie-tls-ecjpake-01 section 7.
@@ -757,20 +475,34 @@
          * ECParameters structure - which means we have to prepend that when
          * we're a client.
          */
-        if (operation->state == PSA_PAKE_INPUT_X4S &&
-            operation->sequence == PSA_PAKE_X1_STEP_KEY_SHARE &&
-            operation->role == PSA_PAKE_ROLE_CLIENT) {
+        if (step == PSA_JPAKE_X4S_STEP_KEY_SHARE &&
+            operation->role == MBEDTLS_ECJPAKE_CLIENT) {
             /* We only support secp256r1. */
             /* This is the ECParameters structure defined by RFC 8422. */
             unsigned char ecparameters[3] = {
                 3, /* named_curve */
                 0, 23 /* secp256r1 */
             };
+
+            if (operation->buffer_length + sizeof(ecparameters) >
+                sizeof(operation->buffer)) {
+                return PSA_ERROR_BUFFER_TOO_SMALL;
+            }
+
             memcpy(operation->buffer + operation->buffer_length,
                    ecparameters, sizeof(ecparameters));
             operation->buffer_length += sizeof(ecparameters);
         }
 
+        /*
+         * The core checks that input_length is smaller than
+         * PSA_PAKE_INPUT_MAX_SIZE.
+         * Thus no risk of integer overflow here.
+         */
+        if (operation->buffer_length + input_length + 1 > sizeof(operation->buffer)) {
+            return PSA_ERROR_BUFFER_TOO_SMALL;
+        }
+
         /* Write the length byte */
         operation->buffer[operation->buffer_length] = (uint8_t) input_length;
         operation->buffer_length += 1;
@@ -781,25 +513,23 @@
         operation->buffer_length += input_length;
 
         /* Load buffer at each last round ZK_PROOF */
-        if (operation->state == PSA_PAKE_INPUT_X1_X2 &&
-            operation->sequence == PSA_PAKE_X2_STEP_ZK_PROOF) {
-            ret = mbedtls_ecjpake_read_round_one(&operation->ctx.ecjpake,
+        if (step == PSA_JPAKE_X2_STEP_ZK_PROOF) {
+            ret = mbedtls_ecjpake_read_round_one(&operation->ctx.jpake,
                                                  operation->buffer,
                                                  operation->buffer_length);
 
-            mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
+            mbedtls_platform_zeroize(operation->buffer, sizeof(operation->buffer));
             operation->buffer_length = 0;
 
             if (ret != 0) {
                 return mbedtls_ecjpake_to_psa_error(ret);
             }
-        } else if (operation->state == PSA_PAKE_INPUT_X4S &&
-                   operation->sequence == PSA_PAKE_X1_STEP_ZK_PROOF) {
-            ret = mbedtls_ecjpake_read_round_two(&operation->ctx.ecjpake,
+        } else if (step == PSA_JPAKE_X4S_STEP_ZK_PROOF) {
+            ret = mbedtls_ecjpake_read_round_two(&operation->ctx.jpake,
                                                  operation->buffer,
                                                  operation->buffer_length);
 
-            mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
+            mbedtls_platform_zeroize(operation->buffer, sizeof(operation->buffer));
             operation->buffer_length = 0;
 
             if (ret != 0) {
@@ -807,113 +537,72 @@
             }
         }
 
-        if ((operation->state == PSA_PAKE_INPUT_X1_X2 &&
-             operation->sequence == PSA_PAKE_X2_STEP_ZK_PROOF) ||
-            (operation->state == PSA_PAKE_INPUT_X4S &&
-             operation->sequence == PSA_PAKE_X1_STEP_ZK_PROOF)) {
-            operation->state = PSA_PAKE_STATE_READY;
-            operation->input_step++;
-            operation->sequence = PSA_PAKE_SEQ_INVALID;
-        } else {
-            operation->sequence++;
-        }
-
         return PSA_SUCCESS;
     } else
+#else
+    (void) step;
+    (void) input;
+    (void) input_length;
 #endif
-    return PSA_ERROR_NOT_SUPPORTED;
+    { return PSA_ERROR_NOT_SUPPORTED; }
 }
 
-psa_status_t psa_pake_input(psa_pake_operation_t *operation,
-                            psa_pake_step_t step,
-                            const uint8_t *input,
-                            size_t input_length)
+psa_status_t mbedtls_psa_pake_input(mbedtls_psa_pake_operation_t *operation,
+                                    psa_crypto_driver_pake_step_t step,
+                                    const uint8_t *input,
+                                    size_t input_length)
 {
-    psa_status_t status = psa_pake_input_internal(
+    psa_status_t status = mbedtls_psa_pake_input_internal(
         operation, step, input, input_length);
 
-    if (status != PSA_SUCCESS) {
-        psa_pake_abort(operation);
-    }
-
     return status;
 }
 
-psa_status_t psa_pake_get_implicit_key(psa_pake_operation_t *operation,
-                                       psa_key_derivation_operation_t *output)
+psa_status_t mbedtls_psa_pake_get_implicit_key(
+    mbedtls_psa_pake_operation_t *operation,
+    uint8_t *output, size_t output_size,
+    size_t *output_length)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-
-    if (operation->alg == PSA_ALG_NONE ||
-        operation->state != PSA_PAKE_STATE_READY ||
-        operation->input_step != PSA_PAKE_STEP_DERIVE ||
-        operation->output_step != PSA_PAKE_STEP_DERIVE) {
-        status = PSA_ERROR_BAD_STATE;
-        goto error;
-    }
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
     if (operation->alg == PSA_ALG_JPAKE) {
-        ret = mbedtls_ecjpake_write_shared_key(&operation->ctx.ecjpake,
-                                               operation->buffer,
-                                               MBEDTLS_PSA_PAKE_BUFFER_SIZE,
-                                               &operation->buffer_length,
+        ret = mbedtls_ecjpake_write_shared_key(&operation->ctx.jpake,
+                                               output,
+                                               output_size,
+                                               output_length,
                                                mbedtls_psa_get_random,
                                                MBEDTLS_PSA_RANDOM_STATE);
         if (ret != 0) {
-            psa_pake_abort(operation);
             return mbedtls_ecjpake_to_psa_error(ret);
         }
 
-        status = psa_key_derivation_input_bytes(output,
-                                                PSA_KEY_DERIVATION_INPUT_SECRET,
-                                                operation->buffer,
-                                                operation->buffer_length);
-
-        mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
-
-        psa_pake_abort(operation);
-
-        return status;
+        return PSA_SUCCESS;
     } else
+#else
+    (void) output;
 #endif
-    status = PSA_ERROR_NOT_SUPPORTED;
-
-error:
-    psa_key_derivation_abort(output);
-    psa_pake_abort(operation);
-
-    return status;
+    { return PSA_ERROR_NOT_SUPPORTED; }
 }
 
-psa_status_t psa_pake_abort(psa_pake_operation_t *operation)
+psa_status_t mbedtls_psa_pake_abort(mbedtls_psa_pake_operation_t *operation)
 {
-    if (operation->alg == PSA_ALG_NONE) {
-        return PSA_SUCCESS;
-    }
+    mbedtls_platform_zeroize(operation->password, operation->password_len);
+    mbedtls_free(operation->password);
+    operation->password = NULL;
+    operation->password_len = 0;
 
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_JPAKE)
     if (operation->alg == PSA_ALG_JPAKE) {
-        operation->input_step = PSA_PAKE_STEP_INVALID;
-        operation->output_step = PSA_PAKE_STEP_INVALID;
-        if (operation->password_len > 0) {
-            mbedtls_platform_zeroize(operation->password, operation->password_len);
-        }
-        mbedtls_free(operation->password);
-        operation->password = NULL;
-        operation->password_len = 0;
-        operation->role = PSA_PAKE_ROLE_NONE;
-        mbedtls_platform_zeroize(operation->buffer, MBEDTLS_PSA_PAKE_BUFFER_SIZE);
+        operation->role = MBEDTLS_ECJPAKE_NONE;
+        mbedtls_platform_zeroize(operation->buffer, sizeof(operation->buffer));
         operation->buffer_length = 0;
         operation->buffer_offset = 0;
-        mbedtls_ecjpake_free(&operation->ctx.ecjpake);
+        mbedtls_ecjpake_free(&operation->ctx.jpake);
     }
 #endif
 
     operation->alg = PSA_ALG_NONE;
-    operation->state = PSA_PAKE_STATE_INVALID;
-    operation->sequence = PSA_PAKE_SEQ_INVALID;
 
     return PSA_SUCCESS;
 }
diff --git a/library/psa_crypto_pake.h b/library/psa_crypto_pake.h
new file mode 100644
index 0000000..001c987
--- /dev/null
+++ b/library/psa_crypto_pake.h
@@ -0,0 +1,171 @@
+/*
+ *  PSA PAKE layer on top of Mbed TLS software crypto
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef PSA_CRYPTO_PAKE_H
+#define PSA_CRYPTO_PAKE_H
+
+#include <psa/crypto.h>
+
+/** Set the session information for a password-authenticated key exchange.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       pake_setup entry point. This function behaves as a pake_setup
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in,out] operation     The operation object to set up. It must have
+ *                              been initialized but not set up yet.
+ * \param[in] inputs            Inputs required for PAKE operation (role, password,
+ *                              key lifetime, cipher suite)
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ *         The algorithm in \p cipher_suite is not a supported PAKE algorithm,
+ *         or the PAKE primitive in \p cipher_suite is not supported or not
+ *         compatible with the PAKE algorithm, or the hash algorithm in
+ *         \p cipher_suite is not supported or not compatible with the PAKE
+ *         algorithm and primitive.
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ */
+psa_status_t mbedtls_psa_pake_setup(mbedtls_psa_pake_operation_t *operation,
+                                    const psa_crypto_driver_pake_inputs_t *inputs);
+
+
+/** Get output for a step of a password-authenticated key exchange.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       pake_output entry point. This function behaves as a pake_output
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in,out] operation    Active PAKE operation.
+ * \param step                 The step of the algorithm for which the output is
+ *                             requested.
+ * \param[out] output          Buffer where the output is to be written in the
+ *                             format appropriate for this driver \p step. Refer to
+ *                             the documentation of psa_crypto_driver_pake_step_t for
+ *                             more information.
+ * \param output_size          Size of the \p output buffer in bytes. This must
+ *                             be at least #PSA_PAKE_OUTPUT_SIZE(\p alg, \p
+ *                             primitive, \p step) where \p alg and
+ *                             \p primitive are the PAKE algorithm and primitive
+ *                             in the operation's cipher suite, and \p step is
+ *                             the output step.
+ *
+ * \param[out] output_length   On success, the number of bytes of the returned
+ *                             output.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ * \retval #PSA_ERROR_BUFFER_TOO_SMALL
+ *         The size of the \p output buffer is too small.
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_DATA_CORRUPT
+ * \retval #PSA_ERROR_DATA_INVALID
+ */
+psa_status_t mbedtls_psa_pake_output(mbedtls_psa_pake_operation_t *operation,
+                                     psa_crypto_driver_pake_step_t step,
+                                     uint8_t *output,
+                                     size_t output_size,
+                                     size_t *output_length);
+
+/** Provide input for a step of a password-authenticated key exchange.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       pake_input entry point. This function behaves as a pake_input
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \note The core checks that input_length is smaller than PSA_PAKE_INPUT_MAX_SIZE.
+ *
+ * \param[in,out] operation    Active PAKE operation.
+ * \param step                 The driver step for which the input is provided.
+ * \param[in] input            Buffer containing the input in the format
+ *                             appropriate for this \p step. Refer to the
+ *                             documentation of psa_crypto_driver_pake_step_t
+ *                             for more information.
+ * \param input_length         Size of the \p input buffer in bytes.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ * \retval #PSA_ERROR_INVALID_SIGNATURE
+ *         The verification fails for a zero-knowledge input step.
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ *         the \p input is not valid for the \p operation's algorithm, cipher suite
+ *         or \p step.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ *         the \p input is not supported for the \p operation's algorithm, cipher
+ *         suite or \p step.
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_DATA_CORRUPT
+ * \retval #PSA_ERROR_DATA_INVALID
+ */
+psa_status_t mbedtls_psa_pake_input(mbedtls_psa_pake_operation_t *operation,
+                                    psa_crypto_driver_pake_step_t step,
+                                    const uint8_t *input,
+                                    size_t input_length);
+
+/** Get implicitly confirmed shared secret from a PAKE.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       pake_get_implicit_key entry point. This function behaves as a
+ *       pake_get_implicit_key entry point as defined in the PSA driver
+ *       interface specification for transparent drivers.
+ *
+ * \param[in,out] operation    Active PAKE operation.
+ * \param[out] output          Output buffer for implicit key.
+ * \param      output_size     Size of the output buffer in bytes.
+ * \param[out] output_length   On success, the number of bytes of the implicit key.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ *         Input from a PAKE is not supported by the algorithm in the \p output
+ *         key derivation operation.
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ * \retval #PSA_ERROR_DATA_CORRUPT
+ * \retval #PSA_ERROR_DATA_INVALID
+ */
+psa_status_t mbedtls_psa_pake_get_implicit_key(
+    mbedtls_psa_pake_operation_t *operation,
+    uint8_t *output, size_t output_size,
+    size_t *output_length);
+
+/** Abort a PAKE operation.
+ *
+ * \note The signature of this function is that of a PSA driver
+ *       pake_abort entry point. This function behaves as a pake_abort
+ *       entry point as defined in the PSA driver interface specification for
+ *       transparent drivers.
+ *
+ * \param[in,out] operation    The operation to abort.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED
+ */
+psa_status_t mbedtls_psa_pake_abort(mbedtls_psa_pake_operation_t *operation);
+
+#endif /* PSA_CRYPTO_PAKE_H */
diff --git a/library/psa_crypto_random_impl.h b/library/psa_crypto_random_impl.h
index f1a2af1..4197b4b 100644
--- a/library/psa_crypto_random_impl.h
+++ b/library/psa_crypto_random_impl.h
@@ -62,7 +62,7 @@
 #elif defined(MBEDTLS_HMAC_DRBG_C)
 
 #include "mbedtls/hmac_drbg.h"
-#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_SHA256_C)
+#if defined(MBEDTLS_MD_CAN_SHA512) && defined(MBEDTLS_MD_CAN_SHA256)
 #include <limits.h>
 #if SIZE_MAX > 0xffffffff
 /* Looks like a 64-bit system, so prefer SHA-512. */
@@ -71,9 +71,9 @@
 /* Looks like a 32-bit system, so prefer SHA-256. */
 #define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256
 #endif
-#elif defined(MBEDTLS_SHA512_C)
+#elif defined(MBEDTLS_MD_CAN_SHA512)
 #define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA512
-#elif defined(MBEDTLS_SHA256_C)
+#elif defined(MBEDTLS_MD_CAN_SHA256)
 #define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256
 #else
 #error "No hash algorithm available for HMAC_DBRG."
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index 6e90f1c..3ff589d 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -172,7 +172,6 @@
                                         size_t data_size,
                                         size_t *data_length)
 {
-#if defined(MBEDTLS_PK_WRITE_C)
     int ret;
     mbedtls_pk_context pk;
     uint8_t *pos = data + data_size;
@@ -209,14 +208,6 @@
 
     *data_length = ret;
     return PSA_SUCCESS;
-#else
-    (void) type;
-    (void) rsa;
-    (void) data;
-    (void) data_size;
-    (void) data_length;
-    return PSA_ERROR_NOT_SUPPORTED;
-#endif /* MBEDTLS_PK_WRITE_C */
 }
 
 psa_status_t mbedtls_psa_rsa_export_public_key(
diff --git a/library/psa_crypto_se.c b/library/psa_crypto_se.c
index dee780f..9db3ded 100644
--- a/library/psa_crypto_se.c
+++ b/library/psa_crypto_se.c
@@ -22,7 +22,6 @@
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
 
-#include <assert.h>
 #include <stdint.h>
 #include <string.h>
 
@@ -313,10 +312,9 @@
     }
     /* Driver table entries are 0-initialized. 0 is not a valid driver
      * location because it means a transparent key. */
-#if defined(static_assert)
-    static_assert(PSA_KEY_LOCATION_LOCAL_STORAGE == 0,
-                  "Secure element support requires 0 to mean a local key");
-#endif
+    MBEDTLS_STATIC_ASSERT(PSA_KEY_LOCATION_LOCAL_STORAGE == 0,
+                          "Secure element support requires 0 to mean a local key");
+
     if (location == PSA_KEY_LOCATION_LOCAL_STORAGE) {
         return PSA_ERROR_INVALID_ARGUMENT;
     }
diff --git a/library/psa_crypto_slot_management.c b/library/psa_crypto_slot_management.c
index cb7fa59..a7cb9b5 100644
--- a/library/psa_crypto_slot_management.c
+++ b/library/psa_crypto_slot_management.c
@@ -438,14 +438,8 @@
         (void) p_drv;
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
 
-#if defined(MBEDTLS_PSA_CRYPTO_DRIVERS)
         /* Key location for external keys gets checked by the wrapper */
         return PSA_SUCCESS;
-#else /* MBEDTLS_PSA_CRYPTO_DRIVERS */
-        /* No support for external lifetimes at all, or dynamic interface
-         * did not find driver for requested lifetime. */
-        return PSA_ERROR_INVALID_ARGUMENT;
-#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS */
     } else {
         /* Local/internal keys are always valid */
         return PSA_SUCCESS;
diff --git a/library/psa_util.c b/library/psa_util.c
new file mode 100644
index 0000000..43a10a3
--- /dev/null
+++ b/library/psa_util.c
@@ -0,0 +1,149 @@
+/*
+ *  PSA hashing layer on top of Mbed TLS software crypto
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "common.h"
+
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+
+#include <psa/crypto.h>
+
+#include "psa_crypto_core.h"
+#include <mbedtls/psa_util.h>
+#include <mbedtls/error.h>
+#include <mbedtls/lms.h>
+#include <mbedtls/ssl.h>
+#include <mbedtls/rsa.h>
+
+/* PSA_SUCCESS is kept at the top of each error table since
+ * it's the most common status when everything functions properly. */
+#if !defined(MBEDTLS_MD_C) || !defined(MBEDTLS_MD5_C) || defined(MBEDTLS_USE_PSA_CRYPTO)
+const mbedtls_error_pair_t psa_to_md_errors[] =
+{
+    { PSA_SUCCESS,                     0 },
+    { PSA_ERROR_NOT_SUPPORTED,         MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE },
+    { PSA_ERROR_INVALID_ARGUMENT,      MBEDTLS_ERR_MD_BAD_INPUT_DATA },
+    { PSA_ERROR_INSUFFICIENT_MEMORY,   MBEDTLS_ERR_MD_ALLOC_FAILED }
+};
+#endif
+#if defined(MBEDTLS_LMS_C)
+const mbedtls_error_pair_t psa_to_lms_errors[] =
+{
+    { PSA_SUCCESS,                     0 },
+    { PSA_ERROR_BUFFER_TOO_SMALL,      MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL },
+    { PSA_ERROR_INVALID_ARGUMENT,      MBEDTLS_ERR_LMS_BAD_INPUT_DATA }
+};
+#endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
+const mbedtls_error_pair_t psa_to_ssl_errors[] =
+{
+    { PSA_SUCCESS,                     0 },
+    { PSA_ERROR_INSUFFICIENT_MEMORY,   MBEDTLS_ERR_SSL_ALLOC_FAILED },
+    { PSA_ERROR_NOT_SUPPORTED,         MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE },
+    { PSA_ERROR_INVALID_SIGNATURE,     MBEDTLS_ERR_SSL_INVALID_MAC },
+    { PSA_ERROR_INVALID_ARGUMENT,      MBEDTLS_ERR_SSL_BAD_INPUT_DATA },
+    { PSA_ERROR_BAD_STATE,             MBEDTLS_ERR_SSL_INTERNAL_ERROR },
+    { PSA_ERROR_BUFFER_TOO_SMALL,      MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL }
+};
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) ||    \
+    defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
+const mbedtls_error_pair_t psa_to_pk_rsa_errors[] =
+{
+    { PSA_SUCCESS,                     0 },
+    { PSA_ERROR_NOT_PERMITTED,         MBEDTLS_ERR_RSA_BAD_INPUT_DATA },
+    { PSA_ERROR_INVALID_ARGUMENT,      MBEDTLS_ERR_RSA_BAD_INPUT_DATA },
+    { PSA_ERROR_INVALID_HANDLE,        MBEDTLS_ERR_RSA_BAD_INPUT_DATA },
+    { PSA_ERROR_BUFFER_TOO_SMALL,      MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE },
+    { PSA_ERROR_INSUFFICIENT_ENTROPY,  MBEDTLS_ERR_RSA_RNG_FAILED },
+    { PSA_ERROR_INVALID_SIGNATURE,     MBEDTLS_ERR_RSA_VERIFY_FAILED },
+    { PSA_ERROR_INVALID_PADDING,       MBEDTLS_ERR_RSA_INVALID_PADDING }
+};
+#endif
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO) && \
+    defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
+const mbedtls_error_pair_t psa_to_pk_ecdsa_errors[] =
+{
+    { PSA_SUCCESS,                     0 },
+    { PSA_ERROR_NOT_PERMITTED,         MBEDTLS_ERR_ECP_BAD_INPUT_DATA },
+    { PSA_ERROR_INVALID_ARGUMENT,      MBEDTLS_ERR_ECP_BAD_INPUT_DATA },
+    { PSA_ERROR_INVALID_HANDLE,        MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE },
+    { PSA_ERROR_BUFFER_TOO_SMALL,      MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL },
+    { PSA_ERROR_INSUFFICIENT_ENTROPY,  MBEDTLS_ERR_ECP_RANDOM_FAILED },
+    { PSA_ERROR_INVALID_SIGNATURE,     MBEDTLS_ERR_ECP_VERIFY_FAILED }
+};
+#endif
+
+int psa_generic_status_to_mbedtls(psa_status_t status)
+{
+    switch (status) {
+        case PSA_SUCCESS:
+            return 0;
+        case PSA_ERROR_NOT_SUPPORTED:
+            return MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED;
+        case PSA_ERROR_CORRUPTION_DETECTED:
+            return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+        case PSA_ERROR_COMMUNICATION_FAILURE:
+        case PSA_ERROR_HARDWARE_FAILURE:
+            return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
+        case PSA_ERROR_NOT_PERMITTED:
+        default:
+            return MBEDTLS_ERR_ERROR_GENERIC_ERROR;
+    }
+}
+
+int psa_status_to_mbedtls(psa_status_t status,
+                          const mbedtls_error_pair_t *local_translations,
+                          size_t local_errors_num,
+                          int (*fallback_f)(psa_status_t))
+{
+    for (size_t i = 0; i < local_errors_num; i++) {
+        if (status == local_translations[i].psa_status) {
+            return local_translations[i].mbedtls_error;
+        }
+    }
+    return fallback_f(status);
+}
+
+int psa_pk_status_to_mbedtls(psa_status_t status)
+{
+    switch (status) {
+        case PSA_ERROR_INVALID_HANDLE:
+            return MBEDTLS_ERR_PK_KEY_INVALID_FORMAT;
+        case PSA_ERROR_BUFFER_TOO_SMALL:
+            return MBEDTLS_ERR_PK_BUFFER_TOO_SMALL;
+        case PSA_ERROR_NOT_SUPPORTED:
+            return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+        case PSA_ERROR_INVALID_ARGUMENT:
+            return MBEDTLS_ERR_PK_INVALID_ALG;
+        case PSA_ERROR_INSUFFICIENT_MEMORY:
+            return MBEDTLS_ERR_PK_ALLOC_FAILED;
+        case PSA_ERROR_BAD_STATE:
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        case PSA_ERROR_DATA_CORRUPT:
+        case PSA_ERROR_DATA_INVALID:
+        case PSA_ERROR_STORAGE_FAILURE:
+            return MBEDTLS_ERR_PK_FILE_IO_ERROR;
+        default:
+            return psa_generic_status_to_mbedtls(status);
+    }
+}
+#endif /* MBEDTLS_PSA_CRYPTO_C */
diff --git a/library/rsa.c b/library/rsa.c
index df7d797..87b3311 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -54,15 +54,6 @@
 #include <stdlib.h>
 #endif
 
-/* We use MD first if it's available (for compatibility reasons)
- * and "fall back" to PSA otherwise (which needs psa_crypto_init()). */
-#if defined(MBEDTLS_PKCS1_V21)
-#if !defined(MBEDTLS_MD_C)
-#include "psa/crypto.h"
-#include "mbedtls/psa_util.h"
-#endif /* MBEDTLS_MD_C */
-#endif /* MBEDTLS_PKCS1_V21 */
-
 #include "mbedtls/platform.h"
 
 #if !defined(MBEDTLS_RSA_ALT)
@@ -500,9 +491,24 @@
 }
 
 /*
+ * Get padding mode of initialized RSA context
+ */
+int mbedtls_rsa_get_padding_mode(const mbedtls_rsa_context *ctx)
+{
+    return ctx->padding;
+}
+
+/*
+ * Get hash identifier of mbedtls_md_type_t type
+ */
+int mbedtls_rsa_get_md_alg(const mbedtls_rsa_context *ctx)
+{
+    return ctx->hash_id;
+}
+
+/*
  * Get length in bytes of RSA modulus
  */
-
 size_t mbedtls_rsa_get_len(const mbedtls_rsa_context *ctx)
 {
     return ctx->len;
@@ -1071,7 +1077,6 @@
     unsigned int hlen;
     size_t i, use_len;
     unsigned char mask[MBEDTLS_HASH_MAX_SIZE];
-#if defined(MBEDTLS_MD_C)
     int ret = 0;
     const mbedtls_md_info_t *md_info;
     mbedtls_md_context_t md_ctx;
@@ -1088,14 +1093,6 @@
     }
 
     hlen = mbedtls_md_get_size(md_info);
-#else
-    psa_hash_operation_t op = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t alg = mbedtls_psa_translate_md(md_alg);
-    psa_status_t status = PSA_SUCCESS;
-    size_t out_len;
-
-    hlen = PSA_HASH_LENGTH(alg);
-#endif
 
     memset(mask, 0, sizeof(mask));
     memset(counter, 0, 4);
@@ -1109,7 +1106,6 @@
             use_len = dlen;
         }
 
-#if defined(MBEDTLS_MD_C)
         if ((ret = mbedtls_md_starts(&md_ctx)) != 0) {
             goto exit;
         }
@@ -1122,21 +1118,6 @@
         if ((ret = mbedtls_md_finish(&md_ctx, mask)) != 0) {
             goto exit;
         }
-#else
-        if ((status = psa_hash_setup(&op, alg)) != PSA_SUCCESS) {
-            goto exit;
-        }
-        if ((status = psa_hash_update(&op, src, slen)) != PSA_SUCCESS) {
-            goto exit;
-        }
-        if ((status = psa_hash_update(&op, counter, 4)) != PSA_SUCCESS) {
-            goto exit;
-        }
-        status = psa_hash_finish(&op, mask, sizeof(mask), &out_len);
-        if (status != PSA_SUCCESS) {
-            goto exit;
-        }
-#endif
 
         for (i = 0; i < use_len; ++i) {
             *p++ ^= mask[i];
@@ -1149,15 +1130,9 @@
 
 exit:
     mbedtls_platform_zeroize(mask, sizeof(mask));
-#if defined(MBEDTLS_MD_C)
     mbedtls_md_free(&md_ctx);
 
     return ret;
-#else
-    psa_hash_abort(&op);
-
-    return mbedtls_md_error_from_psa(status);
-#endif
 }
 
 /**
@@ -1176,7 +1151,6 @@
 {
     const unsigned char zeros[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
 
-#if defined(MBEDTLS_MD_C)
     mbedtls_md_context_t md_ctx;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
@@ -1209,35 +1183,6 @@
     mbedtls_md_free(&md_ctx);
 
     return ret;
-#else
-    psa_hash_operation_t op = PSA_HASH_OPERATION_INIT;
-    psa_algorithm_t alg = mbedtls_psa_translate_md(md_alg);
-    psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    size_t out_size = PSA_HASH_LENGTH(alg);
-    size_t out_len;
-
-    if ((status = psa_hash_setup(&op, alg)) != PSA_SUCCESS) {
-        goto exit;
-    }
-    if ((status = psa_hash_update(&op, zeros, sizeof(zeros))) != PSA_SUCCESS) {
-        goto exit;
-    }
-    if ((status = psa_hash_update(&op, hash, hlen)) != PSA_SUCCESS) {
-        goto exit;
-    }
-    if ((status = psa_hash_update(&op, salt, slen)) != PSA_SUCCESS) {
-        goto exit;
-    }
-    status = psa_hash_finish(&op, out, out_size, &out_len);
-    if (status != PSA_SUCCESS) {
-        goto exit;
-    }
-
-exit:
-    psa_hash_abort(&op);
-
-    return mbedtls_md_error_from_psa(status);
-#endif /* !MBEDTLS_MD_C */
 }
 
 /**
@@ -1252,7 +1197,6 @@
                         const unsigned char *input, size_t ilen,
                         unsigned char *output)
 {
-#if defined(MBEDTLS_MD_C)
     const mbedtls_md_info_t *md_info;
 
     md_info = mbedtls_md_info_from_type(md_alg);
@@ -1261,16 +1205,6 @@
     }
 
     return mbedtls_md(md_info, input, ilen, output);
-#else
-    psa_algorithm_t alg = mbedtls_psa_translate_md(md_alg);
-    psa_status_t status;
-    size_t out_size = PSA_HASH_LENGTH(alg);
-    size_t out_len;
-
-    status = psa_hash_compute(alg, input, ilen, output, out_size, &out_len);
-
-    return mbedtls_md_error_from_psa(status);
-#endif /* !MBEDTLS_MD_C */
 }
 #endif /* MBEDTLS_PKCS1_V21 */
 
@@ -2341,7 +2275,7 @@
 
 #if defined(MBEDTLS_SELF_TEST)
 
-#include "mbedtls/sha1.h"
+#include "mbedtls/md.h"
 
 /*
  * Example RSA-1024 keypair, for test purposes
@@ -2419,7 +2353,7 @@
     unsigned char rsa_plaintext[PT_LEN];
     unsigned char rsa_decrypted[PT_LEN];
     unsigned char rsa_ciphertext[KEY_LEN];
-#if defined(MBEDTLS_SHA1_C)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     unsigned char sha1sum[20];
 #endif
 
@@ -2500,12 +2434,13 @@
         mbedtls_printf("passed\n");
     }
 
-#if defined(MBEDTLS_SHA1_C)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     if (verbose != 0) {
         mbedtls_printf("  PKCS#1 data sign  : ");
     }
 
-    if (mbedtls_sha1(rsa_plaintext, PT_LEN, sha1sum) != 0) {
+    if (mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA1),
+                   rsa_plaintext, PT_LEN, sha1sum) != 0) {
         if (verbose != 0) {
             mbedtls_printf("failed\n");
         }
@@ -2541,7 +2476,7 @@
     if (verbose != 0) {
         mbedtls_printf("passed\n");
     }
-#endif /* MBEDTLS_SHA1_C */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
     if (verbose != 0) {
         mbedtls_printf("\n");
diff --git a/library/sha256.c b/library/sha256.c
index 23cd406..08822f4 100644
--- a/library/sha256.c
+++ b/library/sha256.c
@@ -23,7 +23,7 @@
  */
 
 #if defined(__aarch64__) && !defined(__ARM_FEATURE_CRYPTO) && \
-    defined(__clang__) &&  __clang_major__ < 18 && __clang_major__ > 3
+    defined(__clang__) && __clang_major__ >= 4
 /* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged.
  *
  * The intrinsic declaration are guarded by predefined ACLE macros in clang:
@@ -35,9 +35,14 @@
  * at the top of this file, before any includes.
  */
 #define __ARM_FEATURE_CRYPTO 1
-#define NEED_TARGET_OPTIONS
-#endif /* __aarch64__ && __clang__ &&
-          !__ARM_FEATURE_CRYPTO && __clang_major__ < 18 && __clang_major__ > 3 */
+/* See: https://arm-software.github.io/acle/main/acle.html#cryptographic-extensions
+ *
+ * `__ARM_FEATURE_CRYPTO` is deprecated, but we need to continue to specify it
+ * for older compilers.
+ */
+#define __ARM_FEATURE_SHA2   1
+#define MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG
+#endif
 
 #include "common.h"
 
@@ -55,7 +60,7 @@
 #  if defined(MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT) || \
     defined(MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY)
 /* *INDENT-OFF* */
-#    if !defined(__ARM_FEATURE_CRYPTO) || defined(NEED_TARGET_OPTIONS)
+#    if !defined(__ARM_FEATURE_CRYPTO) || defined(MBEDTLS_ENABLE_ARM_CRYPTO_EXTENSIONS_COMPILER_FLAG)
 #      if defined(__clang__)
 #        if __clang_major__ < 4
 #          error "A more recent Clang is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
@@ -63,8 +68,8 @@
 #        pragma clang attribute push (__attribute__((target("crypto"))), apply_to=function)
 #        define MBEDTLS_POP_TARGET_PRAGMA
 #      elif defined(__GNUC__)
-         /* FIXME: GCC-5 annouce crypto extension, but some intrinsic are missed.
-          *        Known miss intrinsic can be workaround.
+         /* FIXME: GCC 5 claims to support Armv8 Crypto Extensions, but some
+          *        intrinsics are missing. Missing intrinsics could be worked around.
           */
 #        if __GNUC__ < 6
 #          error "A more recent GCC is required for MBEDTLS_SHA256_USE_A64_CRYPTO_*"
diff --git a/library/sha512.c b/library/sha512.c
index bc92a8d..67acfee 100644
--- a/library/sha512.c
+++ b/library/sha512.c
@@ -23,8 +23,7 @@
  */
 
 #if defined(__aarch64__) && !defined(__ARM_FEATURE_SHA512) && \
-    defined(__clang__) &&  __clang_major__ < 18 && \
-    __clang_major__ >= 13 && __clang_minor__ > 0 && __clang_patchlevel__ > 0
+    defined(__clang__) && __clang_major__ >= 7
 /* TODO: Re-consider above after https://reviews.llvm.org/D131064 merged.
  *
  * The intrinsic declaration are guarded by predefined ACLE macros in clang:
@@ -36,11 +35,8 @@
  * at the top of this file, before any includes.
  */
 #define __ARM_FEATURE_SHA512 1
-#define NEED_TARGET_OPTIONS
-#endif /* __aarch64__ && __clang__ &&
-          !__ARM_FEATURE_SHA512 && __clang_major__ < 18 &&
-          __clang_major__ >= 13 && __clang_minor__ > 0 &&
-          __clang_patchlevel__ > 0 */
+#define MBEDTLS_ENABLE_ARM_SHA3_EXTENSIONS_COMPILER_FLAG
+#endif
 
 #include "common.h"
 
@@ -78,15 +74,11 @@
  * Clang == 13.0.0 same as clang 12 (only seen on macOS)
  * Clang >= 13.0.1 has __ARM_FEATURE_SHA512 and intrinsics
  */
-#    if !defined(__ARM_FEATURE_SHA512) || defined(NEED_TARGET_OPTIONS)
+#    if !defined(__ARM_FEATURE_SHA512) || defined(MBEDTLS_ENABLE_ARM_SHA3_EXTENSIONS_COMPILER_FLAG)
        /* Test Clang first, as it defines __GNUC__ */
 #      if defined(__clang__)
 #        if __clang_major__ < 7
 #          error "A more recent Clang is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
-#        elif __clang_major__ < 13 || \
-              (__clang_major__ == 13 && __clang_minor__ == 0 && \
-               __clang_patchlevel__ == 0)
-           /* We implement the intrinsics with inline assembler, so don't error */
 #        else
 #          pragma clang attribute push (__attribute__((target("sha3"))), apply_to=function)
 #          define MBEDTLS_POP_TARGET_PRAGMA
diff --git a/library/ssl_cache.c b/library/ssl_cache.c
index 7c16e10..e29b0bc 100644
--- a/library/ssl_cache.c
+++ b/library/ssl_cache.c
@@ -29,6 +29,7 @@
 
 #include "mbedtls/ssl_cache.h"
 #include "ssl_misc.h"
+#include "mbedtls/error.h"
 
 #include <string.h>
 
@@ -50,7 +51,7 @@
                                 size_t session_id_len,
                                 mbedtls_ssl_cache_entry **dst)
 {
-    int ret = 1;
+    int ret = MBEDTLS_ERR_SSL_CACHE_ENTRY_NOT_FOUND;
 #if defined(MBEDTLS_HAVE_TIME)
     mbedtls_time_t t = mbedtls_time(NULL);
 #endif
@@ -87,13 +88,13 @@
                           size_t session_id_len,
                           mbedtls_ssl_session *session)
 {
-    int ret = 1;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
     mbedtls_ssl_cache_entry *entry;
 
 #if defined(MBEDTLS_THREADING_C)
-    if (mbedtls_mutex_lock(&cache->mutex) != 0) {
-        return 1;
+    if ((ret = mbedtls_mutex_lock(&cache->mutex)) != 0) {
+        return ret;
     }
 #endif
 
@@ -114,13 +115,30 @@
 exit:
 #if defined(MBEDTLS_THREADING_C)
     if (mbedtls_mutex_unlock(&cache->mutex) != 0) {
-        ret = 1;
+        ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR;
     }
 #endif
 
     return ret;
 }
 
+/* zeroize a cache entry */
+static void ssl_cache_entry_zeroize(mbedtls_ssl_cache_entry *entry)
+{
+    if (entry == NULL) {
+        return;
+    }
+
+    /* zeroize and free session structure */
+    if (entry->session != NULL) {
+        mbedtls_platform_zeroize(entry->session, entry->session_len);
+        mbedtls_free(entry->session);
+    }
+
+    /* zeroize the whole entry structure */
+    mbedtls_platform_zeroize(entry, sizeof(mbedtls_ssl_cache_entry));
+}
+
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_cache_pick_writing_slot(mbedtls_ssl_cache_context *cache,
                                        unsigned char const *session_id,
@@ -180,7 +198,7 @@
         /* Create new entry */
         cur = mbedtls_calloc(1, sizeof(mbedtls_ssl_cache_entry));
         if (cur == NULL) {
-            return 1;
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
         }
 
         /* Append to the end of the linked list. */
@@ -201,12 +219,13 @@
     if (old == NULL) {
         /* This should only happen on an ill-configured cache
          * with max_entries == 0. */
-        return 1;
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 #else /* MBEDTLS_HAVE_TIME */
     /* Reuse first entry in chain, but move to last place. */
     if (cache->chain == NULL) {
-        return 1;
+        /* This should never happen */
+        return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     }
 
     old = cache->chain;
@@ -220,19 +239,19 @@
 
 found:
 
+    /* If we're reusing an entry, free it first. */
+    if (cur->session != NULL) {
+        /* `ssl_cache_entry_zeroize` would break the chain,
+         * so we reuse `old` to record `next` temporarily. */
+        old = cur->next;
+        ssl_cache_entry_zeroize(cur);
+        cur->next = old;
+    }
+
 #if defined(MBEDTLS_HAVE_TIME)
     cur->timestamp = t;
 #endif
 
-    /* If we're reusing an entry, free it first. */
-    if (cur->session != NULL) {
-        mbedtls_free(cur->session);
-        cur->session = NULL;
-        cur->session_len = 0;
-        memset(cur->session_id, 0, sizeof(cur->session_id));
-        cur->session_id_len = 0;
-    }
-
     *dst = cur;
     return 0;
 }
@@ -242,7 +261,7 @@
                           size_t session_id_len,
                           const mbedtls_ssl_session *session)
 {
-    int ret = 1;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
     mbedtls_ssl_cache_entry *cur;
 
@@ -266,7 +285,6 @@
      * and allocate a sufficiently large buffer. */
     ret = mbedtls_ssl_session_save(session, NULL, 0, &session_serialized_len);
     if (ret != MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) {
-        ret = 1;
         goto exit;
     }
 
@@ -286,7 +304,7 @@
     }
 
     if (session_id_len > sizeof(cur->session_id)) {
-        ret = 1;
+        ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
         goto exit;
     }
     cur->session_id_len = session_id_len;
@@ -301,7 +319,7 @@
 exit:
 #if defined(MBEDTLS_THREADING_C)
     if (mbedtls_mutex_unlock(&cache->mutex) != 0) {
-        ret = 1;
+        ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR;
     }
 #endif
 
@@ -314,6 +332,55 @@
     return ret;
 }
 
+int mbedtls_ssl_cache_remove(void *data,
+                             unsigned char const *session_id,
+                             size_t session_id_len)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
+    mbedtls_ssl_cache_entry *entry;
+    mbedtls_ssl_cache_entry *prev;
+
+#if defined(MBEDTLS_THREADING_C)
+    if ((ret = mbedtls_mutex_lock(&cache->mutex)) != 0) {
+        return ret;
+    }
+#endif
+
+    ret = ssl_cache_find_entry(cache, session_id, session_id_len, &entry);
+    /* No valid entry found, exit with success */
+    if (ret != 0) {
+        ret = 0;
+        goto exit;
+    }
+
+    /* Now we remove the entry from the chain */
+    if (entry == cache->chain) {
+        cache->chain = entry->next;
+        goto free;
+    }
+    for (prev = cache->chain; prev->next != NULL; prev = prev->next) {
+        if (prev->next == entry) {
+            prev->next = entry->next;
+            break;
+        }
+    }
+
+free:
+    ssl_cache_entry_zeroize(entry);
+    mbedtls_free(entry);
+    ret = 0;
+
+exit:
+#if defined(MBEDTLS_THREADING_C)
+    if (mbedtls_mutex_unlock(&cache->mutex) != 0) {
+        ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR;
+    }
+#endif
+
+    return ret;
+}
+
 #if defined(MBEDTLS_HAVE_TIME)
 void mbedtls_ssl_cache_set_timeout(mbedtls_ssl_cache_context *cache, int timeout)
 {
@@ -344,7 +411,7 @@
         prv = cur;
         cur = cur->next;
 
-        mbedtls_free(prv->session);
+        ssl_cache_entry_zeroize(prv);
         mbedtls_free(prv);
     }
 
diff --git a/library/ssl_ciphersuites.c b/library/ssl_ciphersuites.c
index 33789c4..9cef3fe 100644
--- a/library/ssl_ciphersuites.c
+++ b/library/ssl_ciphersuites.c
@@ -29,8 +29,6 @@
 #include "mbedtls/ssl.h"
 #include "ssl_misc.h"
 
-#include "mbedtls/legacy_or_psa.h"
-
 #include <string.h>
 
 /*
@@ -52,9 +50,9 @@
 #else
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
     /* TLS 1.3 ciphersuites */
-    MBEDTLS_TLS1_3_AES_128_GCM_SHA256,
-    MBEDTLS_TLS1_3_AES_256_GCM_SHA384,
     MBEDTLS_TLS1_3_CHACHA20_POLY1305_SHA256,
+    MBEDTLS_TLS1_3_AES_256_GCM_SHA384,
+    MBEDTLS_TLS1_3_AES_128_GCM_SHA256,
     MBEDTLS_TLS1_3_AES_128_CCM_SHA256,
     MBEDTLS_TLS1_3_AES_128_CCM_8_SHA256,
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
@@ -293,22 +291,22 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
 #if defined(MBEDTLS_AES_C)
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS1_3_AES_256_GCM_SHA384, "TLS1-3-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384,
       MBEDTLS_KEY_EXCHANGE_NONE, /* Key exchange not part of ciphersuite in TLS 1.3 */
       0,
       MBEDTLS_SSL_VERSION_TLS1_3, MBEDTLS_SSL_VERSION_TLS1_3 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS1_3_AES_128_GCM_SHA256, "TLS1-3-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256,
       MBEDTLS_KEY_EXCHANGE_NONE, /* Key exchange not part of ciphersuite in TLS 1.3 */
       0,
       MBEDTLS_SSL_VERSION_TLS1_3, MBEDTLS_SSL_VERSION_TLS1_3 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 #endif /* MBEDTLS_GCM_C */
-#if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_CCM_C) && defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS1_3_AES_128_CCM_SHA256, "TLS1-3-AES-128-CCM-SHA256",
       MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256,
       MBEDTLS_KEY_EXCHANGE_NONE, /* Key exchange not part of ciphersuite in TLS 1.3 */
@@ -319,20 +317,20 @@
       MBEDTLS_KEY_EXCHANGE_NONE, /* Key exchange not part of ciphersuite in TLS 1.3 */
       MBEDTLS_CIPHERSUITE_SHORT_TAG,
       MBEDTLS_SSL_VERSION_TLS1_3, MBEDTLS_SSL_VERSION_TLS1_3 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_CCM_C */
+#endif /* MBEDTLS_MD_CAN_SHA256 && MBEDTLS_CCM_C */
 #endif /* MBEDTLS_AES_C */
-#if defined(MBEDTLS_CHACHAPOLY_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_CHACHAPOLY_C) && defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS1_3_CHACHA20_POLY1305_SHA256,
       "TLS1-3-CHACHA20-POLY1305-SHA256",
       MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
       MBEDTLS_KEY_EXCHANGE_NONE, /* Key exchange not part of ciphersuite in TLS 1.3 */
       0,
       MBEDTLS_SSL_VERSION_TLS1_3, MBEDTLS_SSL_VERSION_TLS1_3 },
-#endif /* MBEDTLS_CHACHAPOLY_C && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_CHACHAPOLY_C && MBEDTLS_MD_CAN_SHA256 */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
 #if defined(MBEDTLS_CHACHAPOLY_C) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+    defined(MBEDTLS_MD_CAN_SHA256) && \
     defined(MBEDTLS_SSL_PROTO_TLS1_2)
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
@@ -391,11 +389,11 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #endif /* MBEDTLS_CHACHAPOLY_C &&
-          MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA &&
+          MBEDTLS_MD_CAN_SHA256 &&
           MBEDTLS_SSL_PROTO_TLS1_2 */
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -406,8 +404,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -420,8 +418,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -434,7 +432,7 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #if defined(MBEDTLS_CCM_C)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM",
       MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -457,53 +455,53 @@
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
       "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
       "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
       "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
       "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
 #if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, "TLS-ECDHE-ECDSA-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_NULL_CIPHER */
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -514,8 +512,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -528,8 +526,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -542,66 +540,66 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_AES_C */
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
       "TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384,
       "TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256,
       "TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384,
       "TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
 #if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, "TLS-ECDHE-RSA-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_NULL_CIPHER */
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_MD_CAN_SHA384) && \
     defined(MBEDTLS_GCM_C)
     { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-DHE-RSA-WITH-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_GCM_C */
+#endif /* MBEDTLS_MD_CAN_SHA384 && MBEDTLS_GCM_C */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_GCM_C)
     { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-DHE-RSA-WITH-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
@@ -620,10 +618,10 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
@@ -633,7 +631,7 @@
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #if defined(MBEDTLS_CCM_C)
     { MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, "TLS-DHE-RSA-WITH-AES-256-CCM",
@@ -657,7 +655,7 @@
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
@@ -667,9 +665,9 @@
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
@@ -679,22 +677,22 @@
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -702,15 +700,15 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_MD_CAN_SHA384) && \
     defined(MBEDTLS_GCM_C)
     { MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS-RSA-WITH-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA && MBEDTLS_GCM_C */
+#endif /* MBEDTLS_MD_CAN_SHA384 && MBEDTLS_GCM_C */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_GCM_C)
     { MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS-RSA-WITH-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -729,9 +727,9 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, "TLS-RSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -743,7 +741,7 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #if defined(MBEDTLS_CCM_C)
     { MBEDTLS_TLS_RSA_WITH_AES_256_CCM, "TLS-RSA-WITH-AES-256-CCM",
       MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -766,7 +764,7 @@
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
@@ -776,9 +774,9 @@
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
@@ -788,23 +786,23 @@
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -812,7 +810,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -823,8 +821,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -837,8 +835,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -851,58 +849,58 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_AES_C */
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
       "TLS-ECDH-RSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384,
       "TLS-ECDH-RSA-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
       "TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
       "TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
 #if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, "TLS-ECDH-RSA-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_NULL_CIPHER */
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
 #if defined(MBEDTLS_AES_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -913,8 +911,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA1 */
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -927,8 +925,8 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -941,89 +939,89 @@
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif /* MBEDTLS_GCM_C */
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_AES_C */
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
       "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
       "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
       "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
       "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
 #if defined(MBEDTLS_CIPHER_NULL_CIPHER)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, "TLS-ECDH-ECDSA-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_NULL_CIPHER */
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
 #if defined(MBEDTLS_AES_C)
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, "TLS-PSK-WITH-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, "TLS-PSK-WITH-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, "TLS-PSK-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, "TLS-PSK-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, "TLS-PSK-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
@@ -1033,7 +1031,7 @@
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #if defined(MBEDTLS_CCM_C)
     { MBEDTLS_TLS_PSK_WITH_AES_256_CCM, "TLS-PSK-WITH-AES-256-CCM",
@@ -1057,35 +1055,35 @@
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -1094,37 +1092,37 @@
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
 #if defined(MBEDTLS_AES_C)
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, "TLS-DHE-PSK-WITH-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, "TLS-DHE-PSK-WITH-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
@@ -1134,7 +1132,7 @@
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #if defined(MBEDTLS_CCM_C)
     { MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, "TLS-DHE-PSK-WITH-AES-256-CCM",
@@ -1158,35 +1156,35 @@
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -1196,21 +1194,21 @@
 #if defined(MBEDTLS_AES_C)
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
@@ -1220,27 +1218,27 @@
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #endif /* MBEDTLS_AES_C */
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
       "TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
       "TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -1249,37 +1247,37 @@
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
 #if defined(MBEDTLS_AES_C)
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, "TLS-RSA-PSK-WITH-AES-128-GCM-SHA256",
       MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, "TLS-RSA-PSK-WITH-AES-256-GCM-SHA384",
       MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384",
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA",
       MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
@@ -1289,41 +1287,41 @@
       MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 #endif /* MBEDTLS_AES_C */
 
 #if defined(MBEDTLS_CAMELLIA_C)
 #if defined(MBEDTLS_CIPHER_MODE_CBC)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_CIPHER_MODE_CBC */
 
 #if defined(MBEDTLS_GCM_C)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_GCM_C */
 #endif /* MBEDTLS_CAMELLIA_C */
 
@@ -1342,21 +1340,21 @@
 
 #if defined(MBEDTLS_CIPHER_NULL_CIPHER)
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
     { MBEDTLS_TLS_RSA_WITH_NULL_MD5, "TLS-RSA-WITH-NULL-MD5",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_RSA_WITH_NULL_SHA, "TLS-RSA-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_WITH_NULL_SHA256, "TLS-RSA-WITH-NULL-SHA256",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
       MBEDTLS_CIPHERSUITE_WEAK,
@@ -1365,95 +1363,95 @@
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_PSK_WITH_NULL_SHA, "TLS-PSK-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_PSK_WITH_NULL_SHA256, "TLS-PSK-WITH-NULL-SHA256",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_PSK_WITH_NULL_SHA384, "TLS-PSK-WITH-NULL-SHA384",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, "TLS-DHE-PSK-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, "TLS-DHE-PSK-WITH-NULL-SHA256",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, "TLS-DHE-PSK-WITH-NULL-SHA384",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, "TLS-ECDHE-PSK-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, "TLS-ECDHE-PSK-WITH-NULL-SHA256",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, "TLS-ECDHE-PSK-WITH-NULL-SHA384",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
     { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, "TLS-RSA-PSK-WITH-NULL-SHA",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-NULL-SHA256",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     { MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-NULL-SHA384",
       MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       MBEDTLS_CIPHERSUITE_WEAK,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 #endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
 #endif /* MBEDTLS_CIPHER_NULL_CIPHER */
 
@@ -1461,7 +1459,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-RSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -1469,14 +1467,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-RSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-RSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -1484,7 +1482,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-RSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
@@ -1496,7 +1494,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
       "TLS-RSA-PSK-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
@@ -1504,14 +1502,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
       "TLS-RSA-PSK-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
       "TLS-RSA-PSK-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
@@ -1519,7 +1517,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
       "TLS-RSA-PSK-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
@@ -1531,7 +1529,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
       "TLS-PSK-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
@@ -1539,14 +1537,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
       "TLS-PSK-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
       "TLS-PSK-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
@@ -1554,7 +1552,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
       "TLS-PSK-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
@@ -1566,7 +1564,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-ECDH-RSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -1574,14 +1572,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-ECDH-RSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-ECDH-RSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -1589,7 +1587,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-ECDH-RSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
@@ -1601,7 +1599,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-ECDHE-RSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -1609,14 +1607,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-ECDHE-RSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-ECDHE-RSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -1624,7 +1622,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-ECDHE-RSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
@@ -1637,7 +1635,7 @@
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
 
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
       "TLS-ECDHE-PSK-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
@@ -1645,7 +1643,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
       "TLS-ECDHE-PSK-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
@@ -1657,7 +1655,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-ECDHE-ECDSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -1665,14 +1663,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-ECDHE-ECDSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-ECDHE-ECDSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -1680,7 +1678,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-ECDHE-ECDSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
@@ -1692,7 +1690,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-ECDH-ECDSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -1700,14 +1698,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-ECDH-ECDSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-ECDH-ECDSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -1715,7 +1713,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-ECDH-ECDSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
@@ -1727,7 +1725,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384,
       "TLS-DHE-RSA-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
@@ -1735,14 +1733,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
       "TLS-DHE-RSA-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256,
       "TLS-DHE-RSA-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
@@ -1750,7 +1748,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
       "TLS-DHE-RSA-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
@@ -1762,7 +1760,7 @@
 
 #if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
 
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384,
       "TLS-DHE-PSK-WITH-ARIA-256-GCM-SHA384",
       MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
@@ -1770,14 +1768,14 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA384))
     { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
       "TLS-DHE-PSK-WITH-ARIA-256-CBC-SHA384",
       MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
       0,
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
-#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256,
       "TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256",
       MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
@@ -1785,7 +1783,7 @@
       MBEDTLS_SSL_VERSION_TLS1_2, MBEDTLS_SSL_VERSION_TLS1_2 },
 #endif
 #if (defined(MBEDTLS_CIPHER_MODE_CBC) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA))
+    defined(MBEDTLS_MD_CAN_SHA256))
     { MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
       "TLS-DHE-PSK-WITH-ARIA-128-CBC-SHA256",
       MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
diff --git a/library/ssl_client.c b/library/ssl_client.c
index ea64b21..e84c28a 100644
--- a/library/ssl_client.c
+++ b/library/ssl_client.c
@@ -257,7 +257,7 @@
     for (; *group_list != 0; group_list++) {
         MBEDTLS_SSL_DEBUG_MSG(1, ("got supported group(%04x)", *group_list));
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
         if ((mbedtls_ssl_conf_is_tls13_enabled(ssl->conf) &&
              mbedtls_ssl_tls13_named_group_is_ecdhe(*group_list)) ||
             (mbedtls_ssl_conf_is_tls12_enabled(ssl->conf) &&
@@ -273,7 +273,7 @@
                                       mbedtls_ssl_get_curve_name_from_tls_id(*group_list),
                                       *group_list));
         }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
         /* Add DHE groups here */
 
     }
@@ -769,7 +769,6 @@
             ssl->tls_version = session_negotiate->tls_version;
             ssl->handshake->min_tls_version = ssl->tls_version;
         } else {
-            ssl->tls_version = ssl->conf->max_tls_version;
             ssl->handshake->min_tls_version = ssl->conf->min_tls_version;
         }
     }
diff --git a/library/ssl_cookie.c b/library/ssl_cookie.c
index b7eead4..ba25389 100644
--- a/library/ssl_cookie.c
+++ b/library/ssl_cookie.c
@@ -33,19 +33,23 @@
 #include "mbedtls/platform_util.h"
 #include "mbedtls/constant_time.h"
 
-#include "mbedtls/legacy_or_psa.h"
-
 #include <string.h>
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+#endif
+
 /*
  * If DTLS is in use, then at least one of SHA-256 or SHA-384 is
  * available. Try SHA-256 first as 384 wastes resources
  */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_LOWLEVEL_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #define COOKIE_MD           MBEDTLS_MD_SHA256
 #define COOKIE_MD_OUTLEN    32
 #define COOKIE_HMAC_LEN     28
-#elif defined(MBEDTLS_HAS_ALG_SHA_384_VIA_LOWLEVEL_OR_PSA)
+#elif defined(MBEDTLS_MD_CAN_SHA384)
 #define COOKIE_MD           MBEDTLS_MD_SHA384
 #define COOKIE_MD_OUTLEN    48
 #define COOKIE_HMAC_LEN     28
@@ -126,7 +130,7 @@
 
     if ((status = psa_generate_key(&attributes,
                                    &ctx->psa_hmac_key)) != PSA_SUCCESS) {
-        return psa_ssl_status_to_mbedtls(status);
+        return PSA_TO_MBEDTLS_ERR(status);
     }
 #else
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -215,26 +219,26 @@
     status = psa_mac_sign_setup(&operation, ctx->psa_hmac_key,
                                 ctx->psa_hmac_alg);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_update(&operation, *p - 4, 4);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_update(&operation, cli_id, cli_id_len);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_sign_finish(&operation, *p, COOKIE_MD_OUTLEN,
                                  &sign_mac_length);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
@@ -263,7 +267,7 @@
 exit:
     status = psa_mac_abort(&operation);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
     return ret;
@@ -299,27 +303,27 @@
     status = psa_mac_verify_setup(&operation, ctx->psa_hmac_key,
                                   ctx->psa_hmac_alg);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_update(&operation, cookie, 4);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_update(&operation, cli_id,
                             cli_id_len);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_verify_finish(&operation, cookie + 4,
                                    COOKIE_HMAC_LEN);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
@@ -374,7 +378,7 @@
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     status = psa_mac_abort(&operation);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
     }
 #else
     mbedtls_platform_zeroize(ref_hmac, sizeof(ref_hmac));
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 7385c6e..d7c47e6 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -32,21 +32,20 @@
 #include "mbedtls/psa_util.h"
 #include "hash_info.h"
 #endif
-#include "mbedtls/legacy_or_psa.h"
 
-#if defined(MBEDTLS_MD5_C)
+#if defined(MBEDTLS_MD_CAN_MD5)
 #include "mbedtls/md5.h"
 #endif
 
-#if defined(MBEDTLS_SHA1_C)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 #include "mbedtls/sha1.h"
 #endif
 
-#if defined(MBEDTLS_SHA256_C)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #include "mbedtls/sha256.h"
 #endif
 
-#if defined(MBEDTLS_SHA512_C)
+#if defined(MBEDTLS_MD_CAN_SHA512)
 #include "mbedtls/sha512.h"
 #endif
 
@@ -55,6 +54,7 @@
 #include "mbedtls/ecjpake.h"
 #endif
 
+#include "mbedtls/pk.h"
 #include "common.h"
 
 /* Shorthand for restartable ECC */
@@ -106,6 +106,7 @@
 #define MBEDTLS_SSL_EXT_ID_ENCRYPT_THEN_MAC           25
 #define MBEDTLS_SSL_EXT_ID_EXTENDED_MASTER_SECRET     26
 #define MBEDTLS_SSL_EXT_ID_SESSION_TICKET             27
+#define MBEDTLS_SSL_EXT_ID_RECORD_SIZE_LIMIT          28
 
 /* Utility for translating IANA extension type. */
 uint32_t mbedtls_ssl_get_extension_id(unsigned int extension_type);
@@ -166,6 +167,7 @@
      MBEDTLS_SSL_EXT_MASK(CERT_AUTH)                              | \
      MBEDTLS_SSL_EXT_MASK(POST_HANDSHAKE_AUTH)                    | \
      MBEDTLS_SSL_EXT_MASK(SIG_ALG_CERT)                           | \
+     MBEDTLS_SSL_EXT_MASK(RECORD_SIZE_LIMIT)                      | \
      MBEDTLS_SSL_TLS1_3_EXT_MASK_UNRECOGNIZED)
 
 /* RFC 8446 section 4.2. Allowed extensions for EncryptedExtensions */
@@ -178,7 +180,8 @@
      MBEDTLS_SSL_EXT_MASK(ALPN)                                   | \
      MBEDTLS_SSL_EXT_MASK(CLI_CERT_TYPE)                          | \
      MBEDTLS_SSL_EXT_MASK(SERV_CERT_TYPE)                         | \
-     MBEDTLS_SSL_EXT_MASK(EARLY_DATA))
+     MBEDTLS_SSL_EXT_MASK(EARLY_DATA)                             | \
+     MBEDTLS_SSL_EXT_MASK(RECORD_SIZE_LIMIT))
 
 /* RFC 8446 section 4.2. Allowed extensions for CertificateRequest */
 #define MBEDTLS_SSL_TLS1_3_ALLOWED_EXTS_OF_CR                                  \
@@ -294,9 +297,9 @@
 
 #if defined(MBEDTLS_SSL_SOME_SUITES_USE_MAC)
 /* Ciphersuites using HMAC */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #define MBEDTLS_SSL_MAC_ADD                 48  /* SHA-384 used for HMAC */
-#elif defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#elif defined(MBEDTLS_MD_CAN_SHA256)
 #define MBEDTLS_SSL_MAC_ADD                 32  /* SHA-256 used for HMAC */
 #else
 #define MBEDTLS_SSL_MAC_ADD                 20  /* SHA-1   used for HMAC */
@@ -748,25 +751,20 @@
     mbedtls_dhm_context dhm_ctx;                /*!<  DHM key exchange        */
 #endif
 
-/* Adding guard for MBEDTLS_ECDSA_C to ensure no compile errors due
- * to guards in client and server code. There is a gap in functionality that
- * access to ecdh_ctx structure is needed for MBEDTLS_ECDSA_C which does not
- * seem correct.
- */
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
-#if !defined(MBEDTLS_USE_PSA_CRYPTO)
+#if defined(MBEDTLS_ECDH_C) && !defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_ecdh_context ecdh_ctx;              /*!<  ECDH key exchange       */
-#endif /* !MBEDTLS_USE_PSA_CRYPTO */
+#endif /* MBEDTLS_ECDH_C && !MBEDTLS_USE_PSA_CRYPTO */
 
-#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
+#if defined(PSA_WANT_ALG_ECDH) && \
+    (defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3))
     psa_key_type_t ecdh_psa_type;
     size_t ecdh_bits;
     mbedtls_svc_key_id_t ecdh_psa_privkey;
     uint8_t ecdh_psa_privkey_is_external;
     unsigned char ecdh_psa_peerkey[MBEDTLS_PSA_MAX_EC_PUBKEY_LENGTH];
     size_t ecdh_psa_peerkey_len;
-#endif /* MBEDTLS_USE_PSA_CRYPTO || MBEDTLS_SSL_PROTO_TLS1_3 */
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */
+#endif /* PSA_WANT_ALG_ECDH &&
+          (MBEDTLS_USE_PSA_CRYPTO || MBEDTLS_SSL_PROTO_TLS1_3) */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
@@ -782,7 +780,7 @@
 #endif
 #endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) ||      \
+#if defined(MBEDTLS_PK_CAN_ECDH) || defined(MBEDTLS_PK_CAN_ECDSA_SOME) ||      \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
     uint16_t *curves_tls_id;      /*!<  List of TLS IDs of supported elliptic curves */
 #endif
@@ -901,18 +899,18 @@
     /*
      * Checksum contexts
      */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_operation_t fin_sha256_psa;
 #else
-    mbedtls_sha256_context fin_sha256;
+    mbedtls_md_context_t fin_sha256;
 #endif
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_operation_t fin_sha384_psa;
 #else
-    mbedtls_sha512_context fin_sha384;
+    mbedtls_md_context_t fin_sha384;
 #endif
 #endif
 
@@ -1555,10 +1553,10 @@
 
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_check_curve_tls_id(const mbedtls_ssl_context *ssl, uint16_t tls_id);
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_check_curve(const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id);
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
 
 /**
  * \brief Return PSA EC info for the specified TLS ID.
@@ -2050,6 +2048,33 @@
                                           unsigned char **buf,
                                           size_t *buf_len);
 
+/**
+ * \brief Detect if a list of extensions contains a supported_versions
+ *        extension or not.
+ *
+ * \param[in] ssl  SSL context
+ * \param[in] buf  Address of the first byte of the extensions vector.
+ * \param[in] end  End of the buffer containing the list of extensions.
+ * \param[out] supported_versions_data  If the extension is present, address of
+ *                                      its first byte of data, NULL otherwise.
+ * \param[out] supported_versions_data_end  If the extension is present, address
+ *                                          of the first byte immediately
+ *                                          following the extension data, NULL
+ *                                          otherwise.
+ * \return 0  if the list of extensions does not contain a supported_versions
+ *            extension.
+ * \return 1  if the list of extensions contains a supported_versions
+ *            extension.
+ * \return    A negative value if an error occurred while parsing the
+ *            extensions.
+ */
+MBEDTLS_CHECK_RETURN_CRITICAL
+int mbedtls_ssl_tls13_is_supported_versions_ext_present_in_exts(
+    mbedtls_ssl_context *ssl,
+    const unsigned char *buf, const unsigned char *end,
+    const unsigned char **supported_versions_data,
+    const unsigned char **supported_versions_data_end);
+
 /*
  * Handler of TLS 1.3 server certificate message
  */
@@ -2086,7 +2111,7 @@
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_reset_transcript_for_hrr(mbedtls_ssl_context *ssl);
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange(
     mbedtls_ssl_context *ssl,
@@ -2094,7 +2119,7 @@
     unsigned char *buf,
     unsigned char *end,
     size_t *out_len);
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 int mbedtls_ssl_tls13_write_early_data_ext(mbedtls_ssl_context *ssl,
@@ -2212,7 +2237,7 @@
 
 static inline int mbedtls_ssl_named_group_is_supported(uint16_t named_group)
 {
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(named_group)) {
         if (mbedtls_ssl_get_ecp_group_id_from_tls_id(named_group) !=
             MBEDTLS_ECP_DP_NONE) {
@@ -2221,7 +2246,7 @@
     }
 #else
     ((void) named_group);
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
     return 0;
 }
 
@@ -2279,7 +2304,7 @@
     const uint16_t sig_alg)
 {
     switch (sig_alg) {
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
 #if defined(PSA_WANT_ALG_SHA_256) && defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256:
             break;
@@ -2292,7 +2317,7 @@
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512:
             break;
 #endif /* PSA_WANT_ALG_SHA_512 && MBEDTLS_ECP_DP_SECP521R1_ENABLED */
-#endif /* MBEDTLS_ECDSA_C */
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME */
 
 #if defined(MBEDTLS_PKCS1_V21)
 #if defined(PSA_WANT_ALG_SHA_256)
@@ -2320,18 +2345,18 @@
 {
     switch (sig_alg) {
 #if defined(MBEDTLS_PKCS1_V15)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256:
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256 */
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384:
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512:
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA512 */
 #endif /* MBEDTLS_PKCS1_V15 */
         default:
             return mbedtls_ssl_tls13_sig_alg_for_cert_verify_is_supported(
@@ -2374,24 +2399,24 @@
 
     switch (sig_alg) {
 #if defined(MBEDTLS_PKCS1_V21)
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256:
             *md_alg = MBEDTLS_MD_SHA256;
             *pk_type = MBEDTLS_PK_RSASSA_PSS;
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA  */
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256  */
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384:
             *md_alg = MBEDTLS_MD_SHA384;
             *pk_type = MBEDTLS_PK_RSASSA_PSS;
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384 */
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512:
             *md_alg = MBEDTLS_MD_SHA512;
             *pk_type = MBEDTLS_PK_RSASSA_PSS;
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA512 */
 #endif /* MBEDTLS_PKCS1_V21 */
         default:
             return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@@ -2408,32 +2433,32 @@
     unsigned char sig = MBEDTLS_BYTE_0(sig_alg);
 
     switch (hash) {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
         case MBEDTLS_SSL_HASH_MD5:
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
         case MBEDTLS_SSL_HASH_SHA1:
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
         case MBEDTLS_SSL_HASH_SHA224:
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_SSL_HASH_SHA256:
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_SSL_HASH_SHA384:
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_SSL_HASH_SHA512:
             break;
 #endif
@@ -2448,7 +2473,7 @@
             break;
 #endif
 
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
         case MBEDTLS_SSL_SIG_ECDSA:
             break;
 #endif
@@ -2514,6 +2539,7 @@
                                        psa_key_type_t *key_type,
                                        size_t *key_size);
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 /**
  * \brief       Convert given PSA status to mbedtls error code.
  *
@@ -2521,7 +2547,7 @@
  *
  * \return             corresponding mbedtls error code
  */
-static inline int psa_ssl_status_to_mbedtls(psa_status_t status)
+static inline MBEDTLS_DEPRECATED int psa_ssl_status_to_mbedtls(psa_status_t status)
 {
     switch (status) {
         case PSA_SUCCESS:
@@ -2542,6 +2568,7 @@
             return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
     }
 }
+#endif /* !MBEDTLS_DEPRECATED_REMOVED */
 #endif /* MBEDTLS_USE_PSA_CRYPTO || MBEDTLS_SSL_PROTO_TLS1_3 */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) && \
@@ -2612,14 +2639,14 @@
     const mbedtls_ssl_ciphersuite_t *suite);
 #endif /* MBEDTLS_SSL_SOME_SUITES_USE_CBC_ETM */
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
 
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_tls13_read_public_ecdhe_share(mbedtls_ssl_context *ssl,
                                               const unsigned char *buf,
                                               size_t buf_len);
 
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
 static inline int mbedtls_ssl_tls13_cipher_suite_is_offered(
     mbedtls_ssl_context *ssl, int cipher_suite)
@@ -2659,6 +2686,16 @@
                                       const unsigned char *end);
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+#define MBEDTLS_SSL_RECORD_SIZE_LIMIT_EXTENSION_DATA_LENGTH (2)
+#define MBEDTLS_SSL_RECORD_SIZE_LIMIT_MIN (64)
+
+MBEDTLS_CHECK_RETURN_CRITICAL
+int mbedtls_ssl_tls13_parse_record_size_limit_ext(mbedtls_ssl_context *ssl,
+                                                  const unsigned char *buf,
+                                                  const unsigned char *end);
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
 #if defined(MBEDTLS_SSL_ALPN)
 MBEDTLS_CHECK_RETURN_CRITICAL
 int mbedtls_ssl_parse_alpn_ext(mbedtls_ssl_context *ssl,
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index d26d950..18c19f9 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -48,6 +48,12 @@
 #include "mbedtls/oid.h"
 #endif
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+#endif
+
 static uint32_t ssl_get_hs_total_len(mbedtls_ssl_context const *ssl);
 
 /*
@@ -879,10 +885,10 @@
 hmac_failed_etm_disabled:
         mbedtls_platform_zeroize(mac, transform->maclen);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         status = psa_mac_abort(&operation);
         if (ret == 0 && status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
         if (ret != 0) {
@@ -979,7 +985,7 @@
                                   &rec->data_len);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_encrypt_buf", ret);
             return ret;
         }
@@ -1089,7 +1095,7 @@
                                           transform->psa_key_enc, transform->psa_alg);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_encrypt_setup", ret);
             return ret;
         }
@@ -1097,7 +1103,7 @@
         status = psa_cipher_set_iv(&cipher_op, transform->iv_enc, transform->ivlen);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_set_iv", ret);
             return ret;
 
@@ -1108,7 +1114,7 @@
                                    data, rec->data_len, &olen);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_update", ret);
             return ret;
 
@@ -1119,7 +1125,7 @@
                                    &part_len);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_finish", ret);
             return ret;
 
@@ -1222,10 +1228,10 @@
 hmac_failed_etm_enabled:
             mbedtls_platform_zeroize(mac, transform->maclen);
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             status = psa_mac_abort(&operation);
             if (ret == 0 && status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
             }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
             if (ret != 0) {
@@ -1399,7 +1405,7 @@
                                   &olen);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_aead_decrypt", ret);
             return ret;
         }
@@ -1571,10 +1577,10 @@
 
 hmac_failed_etm_enabled:
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             status = psa_mac_abort(&operation);
             if (ret == 0 && status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
             }
 #else
             mbedtls_platform_zeroize(mac_expect, transform->maclen);
@@ -1621,7 +1627,7 @@
                                           transform->psa_key_dec, transform->psa_alg);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_decrypt_setup", ret);
             return ret;
         }
@@ -1629,7 +1635,7 @@
         status = psa_cipher_set_iv(&cipher_op, transform->iv_dec, transform->ivlen);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_set_iv", ret);
             return ret;
         }
@@ -1639,7 +1645,7 @@
                                    data, rec->data_len, &olen);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_update", ret);
             return ret;
         }
@@ -1649,7 +1655,7 @@
                                    &part_len);
 
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_cipher_finish", ret);
             return ret;
         }
@@ -5593,8 +5599,10 @@
     n = (len < ssl->in_msglen)
         ? len : ssl->in_msglen;
 
-    memcpy(buf, ssl->in_offt, n);
-    ssl->in_msglen -= n;
+    if (len != 0) {
+        memcpy(buf, ssl->in_offt, n);
+        ssl->in_msglen -= n;
+    }
 
     /* Zeroising the plaintext buffer to erase unused application data
        from the memory. */
@@ -5670,7 +5678,9 @@
          */
         ssl->out_msglen  = len;
         ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA;
-        memcpy(ssl->out_msg, buf, len);
+        if (len > 0) {
+            memcpy(ssl->out_msg, buf, len);
+        }
 
         if ((ret = mbedtls_ssl_write_record(ssl, SSL_FORCE_FLUSH)) != 0) {
             MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_write_record", ret);
diff --git a/library/ssl_ticket.c b/library/ssl_ticket.c
index ba9dbd5..7d07d19 100644
--- a/library/ssl_ticket.c
+++ b/library/ssl_ticket.c
@@ -30,6 +30,12 @@
 
 #include <string.h>
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+#endif
+
 /*
  * Initialize context
  */
@@ -91,7 +97,7 @@
     psa_set_key_type(&attributes, key->key_type);
     psa_set_key_bits(&attributes, key->key_bits);
 
-    ret = psa_ssl_status_to_mbedtls(
+    ret = PSA_TO_MBEDTLS_ERR(
         psa_import_key(&attributes, buf,
                        PSA_BITS_TO_BYTES(key->key_bits),
                        &key->key));
@@ -133,7 +139,7 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
         if ((status = psa_destroy_key(ctx->keys[ctx->active].key)) != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
@@ -169,7 +175,7 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if ((status = psa_destroy_key(key->key)) != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         return ret;
     }
 
@@ -182,7 +188,7 @@
     if ((status = psa_import_key(&attributes, k,
                                  PSA_BITS_TO_BYTES(key->key_bits),
                                  &key->key)) != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         return ret;
     }
 #else
@@ -355,7 +361,7 @@
                                    state, clear_len,
                                    state, end - state,
                                    &ciph_len)) != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 #else
@@ -465,7 +471,7 @@
                                    key_name, TICKET_ADD_DATA_LEN,
                                    ticket, enc_len + TICKET_AUTH_TAG_BYTES,
                                    ticket, enc_len, &clear_len)) != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto cleanup;
     }
 #else
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 441089f..331bb79 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -25,8 +25,6 @@
 
 #if defined(MBEDTLS_SSL_TLS_C)
 
-#include <assert.h>
-
 #include "mbedtls/platform.h"
 
 #include "mbedtls/ssl.h"
@@ -46,12 +44,20 @@
 #include "mbedtls/psa_util.h"
 #include "psa/crypto.h"
 #endif
-#include "mbedtls/legacy_or_psa.h"
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
 #include "mbedtls/oid.h"
 #endif
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status, \
+                                                           psa_to_ssl_errors, \
+                                                           psa_generic_status_to_mbedtls)
+#define PSA_TO_MD_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status, \
+                                                      psa_to_md_errors, \
+                                                      psa_generic_status_to_mbedtls)
+#endif
+
 #if defined(MBEDTLS_TEST_HOOKS)
 static mbedtls_ssl_chk_buf_ptr_args chk_buf_ptr_fail_args;
 
@@ -412,7 +418,7 @@
                                         unsigned endpoint,
                                         const mbedtls_ssl_context *ssl);
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int tls_prf_sha256(const unsigned char *secret, size_t slen,
                           const char *label,
@@ -421,9 +427,9 @@
 static int ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *, unsigned char *, size_t *);
 static int ssl_calc_finished_tls_sha256(mbedtls_ssl_context *, unsigned char *, int);
 
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int tls_prf_sha384(const unsigned char *secret, size_t slen,
                           const char *label,
@@ -432,7 +438,7 @@
 
 static int ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *, unsigned char *, size_t *);
 static int ssl_calc_finished_tls_sha384(mbedtls_ssl_context *, unsigned char *, int);
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA384*/
 
 static size_t ssl_tls12_session_save(const mbedtls_ssl_session *session,
                                      unsigned char *buf,
@@ -446,13 +452,13 @@
 
 static int ssl_update_checksum_start(mbedtls_ssl_context *, const unsigned char *, size_t);
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 static int ssl_update_checksum_sha256(mbedtls_ssl_context *, const unsigned char *, size_t);
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 static int ssl_update_checksum_sha384(mbedtls_ssl_context *, const unsigned char *, size_t);
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA384*/
 
 int  mbedtls_ssl_tls_prf(const mbedtls_tls_prf_types prf,
                          const unsigned char *secret, size_t slen,
@@ -464,16 +470,16 @@
 
     switch (prf) {
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_SSL_TLS_PRF_SHA384:
             tls_prf = tls_prf_sha384;
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA384*/
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_SSL_TLS_PRF_SHA256:
             tls_prf = tls_prf_sha256;
             break;
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
         default:
             return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@@ -584,6 +590,9 @@
         case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
             return MBEDTLS_SSL_EXT_ID_EXTENDED_MASTER_SECRET;
 
+        case MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT:
+            return MBEDTLS_SSL_EXT_ID_RECORD_SIZE_LIMIT;
+
         case MBEDTLS_TLS_EXT_SESSION_TICKET:
             return MBEDTLS_SSL_EXT_ID_SESSION_TICKET;
 
@@ -626,7 +635,8 @@
     [MBEDTLS_SSL_EXT_ID_SUPPORTED_POINT_FORMATS] = "supported_point_formats",
     [MBEDTLS_SSL_EXT_ID_ENCRYPT_THEN_MAC] = "encrypt_then_mac",
     [MBEDTLS_SSL_EXT_ID_EXTENDED_MASTER_SECRET] = "extended_master_secret",
-    [MBEDTLS_SSL_EXT_ID_SESSION_TICKET] = "session_ticket"
+    [MBEDTLS_SSL_EXT_ID_SESSION_TICKET] = "session_ticket",
+    [MBEDTLS_SSL_EXT_ID_RECORD_SIZE_LIMIT] = "record_size_limit"
 };
 
 static unsigned int extension_type_table[] = {
@@ -657,7 +667,8 @@
     [MBEDTLS_SSL_EXT_ID_SUPPORTED_POINT_FORMATS] = MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS,
     [MBEDTLS_SSL_EXT_ID_ENCRYPT_THEN_MAC] = MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC,
     [MBEDTLS_SSL_EXT_ID_EXTENDED_MASTER_SECRET] = MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET,
-    [MBEDTLS_SSL_EXT_ID_SESSION_TICKET] = MBEDTLS_TLS_EXT_SESSION_TICKET
+    [MBEDTLS_SSL_EXT_ID_SESSION_TICKET] = MBEDTLS_TLS_EXT_SESSION_TICKET,
+    [MBEDTLS_SSL_EXT_ID_RECORD_SIZE_LIMIT] = MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT
 };
 
 const char *mbedtls_ssl_get_extension_name(unsigned int extension_type)
@@ -772,12 +783,12 @@
 {
     ((void) ciphersuite_info);
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     if (ciphersuite_info->mac == MBEDTLS_MD_SHA384) {
         ssl->handshake->update_checksum = ssl_update_checksum_sha384;
     } else
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     if (ciphersuite_info->mac != MBEDTLS_MD_SHA384) {
         ssl->handshake->update_checksum = ssl_update_checksum_sha256;
     } else
@@ -818,8 +829,8 @@
 
 int mbedtls_ssl_reset_checksum(mbedtls_ssl_context *ssl)
 {
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) || \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256) || \
+    defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_status_t status;
 #else
@@ -828,35 +839,50 @@
 #else /* SHA-256 or SHA-384 */
     ((void) ssl);
 #endif /* SHA-256 or SHA-384 */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     status = psa_hash_abort(&ssl->handshake->fin_sha256_psa);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
     status = psa_hash_setup(&ssl->handshake->fin_sha256_psa, PSA_ALG_SHA_256);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
 #else
-    ret = mbedtls_sha256_starts(&ssl->handshake->fin_sha256, 0);
+    mbedtls_md_free(&ssl->handshake->fin_sha256);
+    mbedtls_md_init(&ssl->handshake->fin_sha256);
+    ret = mbedtls_md_setup(&ssl->handshake->fin_sha256,
+                           mbedtls_md_info_from_type(MBEDTLS_MD_SHA256),
+                           0);
+    if (ret != 0) {
+        return ret;
+    }
+    ret = mbedtls_md_starts(&ssl->handshake->fin_sha256);
     if (ret != 0) {
         return ret;
     }
 #endif
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     status = psa_hash_abort(&ssl->handshake->fin_sha384_psa);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
     status = psa_hash_setup(&ssl->handshake->fin_sha384_psa, PSA_ALG_SHA_384);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
 #else
-    ret = mbedtls_sha512_starts(&ssl->handshake->fin_sha384, 1);
+    mbedtls_md_free(&ssl->handshake->fin_sha384);
+    mbedtls_md_init(&ssl->handshake->fin_sha384);
+    ret = mbedtls_md_setup(&ssl->handshake->fin_sha384,
+                           mbedtls_md_info_from_type(MBEDTLS_MD_SHA384), 0);
+    if (ret != 0) {
+        return ret;
+    }
+    ret = mbedtls_md_starts(&ssl->handshake->fin_sha384);
     if (ret != 0) {
         return ret;
     }
@@ -868,8 +894,8 @@
 static int ssl_update_checksum_start(mbedtls_ssl_context *ssl,
                                      const unsigned char *buf, size_t len)
 {
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) || \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256) || \
+    defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_status_t status;
 #else
@@ -880,27 +906,27 @@
     (void) buf;
     (void) len;
 #endif /* SHA-256 or SHA-384 */
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     status = psa_hash_update(&ssl->handshake->fin_sha256_psa, buf, len);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
 #else
-    ret = mbedtls_sha256_update(&ssl->handshake->fin_sha256, buf, len);
+    ret = mbedtls_md_update(&ssl->handshake->fin_sha256, buf, len);
     if (ret != 0) {
         return ret;
     }
 #endif
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     status = psa_hash_update(&ssl->handshake->fin_sha384_psa, buf, len);
     if (status != PSA_SUCCESS) {
-        return mbedtls_md_error_from_psa(status);
+        return PSA_TO_MD_ERR(status);
     }
 #else
-    ret = mbedtls_sha512_update(&ssl->handshake->fin_sha384, buf, len);
+    ret = mbedtls_md_update(&ssl->handshake->fin_sha384, buf, len);
     if (ret != 0) {
         return ret;
     }
@@ -909,28 +935,28 @@
     return 0;
 }
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 static int ssl_update_checksum_sha256(mbedtls_ssl_context *ssl,
                                       const unsigned char *buf, size_t len)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    return mbedtls_md_error_from_psa(psa_hash_update(
-                                         &ssl->handshake->fin_sha256_psa, buf, len));
+    return PSA_TO_MD_ERR(psa_hash_update(
+                             &ssl->handshake->fin_sha256_psa, buf, len));
 #else
-    return mbedtls_sha256_update(&ssl->handshake->fin_sha256, buf, len);
+    return mbedtls_md_update(&ssl->handshake->fin_sha256, buf, len);
 #endif
 }
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 static int ssl_update_checksum_sha384(mbedtls_ssl_context *ssl,
                                       const unsigned char *buf, size_t len)
 {
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    return mbedtls_md_error_from_psa(psa_hash_update(
-                                         &ssl->handshake->fin_sha384_psa, buf, len));
+    return PSA_TO_MD_ERR(psa_hash_update(
+                             &ssl->handshake->fin_sha384_psa, buf, len));
 #else
-    return mbedtls_sha512_update(&ssl->handshake->fin_sha384, buf, len);
+    return mbedtls_md_update(&ssl->handshake->fin_sha384, buf, len);
 #endif
 }
 #endif
@@ -939,18 +965,18 @@
 {
     memset(handshake, 0, sizeof(mbedtls_ssl_handshake_params));
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     handshake->fin_sha256_psa = psa_hash_operation_init();
 #else
-    mbedtls_sha256_init(&handshake->fin_sha256);
+    mbedtls_md_init(&handshake->fin_sha256);
 #endif
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     handshake->fin_sha384_psa = psa_hash_operation_init();
 #else
-    mbedtls_sha512_init(&handshake->fin_sha384);
+    mbedtls_md_init(&handshake->fin_sha384);
 #endif
 #endif
 
@@ -1122,7 +1148,7 @@
  * mbedtls_ssl_conf_curves returns void and so can't return
  * any error codes.
  */
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
     /* Heap allocate and translate curve_list from internal to IANA group ids */
     if (ssl->conf->curve_list != NULL) {
@@ -1158,7 +1184,7 @@
         ssl->handshake->group_list_heap_allocated = 0;
     }
 #endif /* MBEDTLS_DEPRECATED_REMOVED */
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
@@ -1172,17 +1198,15 @@
         size_t sig_algs_len = 0;
         uint16_t *p;
 
-#if defined(static_assert)
-        static_assert(MBEDTLS_SSL_MAX_SIG_ALG_LIST_LEN
-                      <= (SIZE_MAX - (2 * sizeof(uint16_t))),
-                      "MBEDTLS_SSL_MAX_SIG_ALG_LIST_LEN too big");
-#endif
+        MBEDTLS_STATIC_ASSERT(MBEDTLS_SSL_MAX_SIG_ALG_LIST_LEN
+                              <= (SIZE_MAX - (2 * sizeof(uint16_t))),
+                              "MBEDTLS_SSL_MAX_SIG_ALG_LIST_LEN too big");
 
         for (md = sig_hashes; *md != MBEDTLS_MD_NONE; md++) {
             if (mbedtls_ssl_hash_from_md_alg(*md) == MBEDTLS_SSL_HASH_NONE) {
                 continue;
             }
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
             sig_algs_len += sizeof(uint16_t);
 #endif
 
@@ -1210,7 +1234,7 @@
             if (hash == MBEDTLS_SSL_HASH_NONE) {
                 continue;
             }
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
             *p = ((hash << 8) | MBEDTLS_SSL_SIG_ECDSA);
             p++;
 #endif
@@ -1301,12 +1325,6 @@
             return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
         }
 
-        if (conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
-            MBEDTLS_SSL_DEBUG_MSG(1, ("TLS 1.3 server is not supported yet."));
-            return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-        }
-
-
         MBEDTLS_SSL_DEBUG_MSG(4, ("The SSL configuration is TLS 1.3 or TLS 1.2."));
         return 0;
     }
@@ -1369,6 +1387,7 @@
     if ((ret = ssl_conf_check(ssl)) != 0) {
         return ret;
     }
+    ssl->tls_version = ssl->conf->max_tls_version;
 
     /*
      * Prepare base structures
@@ -1925,14 +1944,19 @@
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
+static const uint8_t jpake_server_id[] = { 's', 'e', 'r', 'v', 'e', 'r' };
+static const uint8_t jpake_client_id[] = { 'c', 'l', 'i', 'e', 'n', 't' };
+
 static psa_status_t mbedtls_ssl_set_hs_ecjpake_password_common(
     mbedtls_ssl_context *ssl,
     mbedtls_svc_key_id_t pwd)
 {
     psa_status_t status;
-    psa_pake_role_t psa_role;
     psa_pake_cipher_suite_t cipher_suite = psa_pake_cipher_suite_init();
-
+    const uint8_t *user = NULL;
+    size_t user_len = 0;
+    const uint8_t *peer = NULL;
+    size_t peer_len = 0;
     psa_pake_cs_set_algorithm(&cipher_suite, PSA_ALG_JPAKE);
     psa_pake_cs_set_primitive(&cipher_suite,
                               PSA_PAKE_PRIMITIVE(PSA_PAKE_PRIMITIVE_TYPE_ECC,
@@ -1946,12 +1970,23 @@
     }
 
     if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        psa_role = PSA_PAKE_ROLE_SERVER;
+        user = jpake_server_id;
+        user_len = sizeof(jpake_server_id);
+        peer = jpake_client_id;
+        peer_len = sizeof(jpake_client_id);
     } else {
-        psa_role = PSA_PAKE_ROLE_CLIENT;
+        user = jpake_client_id;
+        user_len = sizeof(jpake_client_id);
+        peer = jpake_server_id;
+        peer_len = sizeof(jpake_server_id);
     }
 
-    status = psa_pake_set_role(&ssl->handshake->psa_pake_ctx, psa_role);
+    status = psa_pake_set_user(&ssl->handshake->psa_pake_ctx, user, user_len);
+    if (status != PSA_SUCCESS) {
+        return status;
+    }
+
+    status = psa_pake_set_peer(&ssl->handshake->psa_pake_ctx, peer, peer_len);
     if (status != PSA_SUCCESS) {
         return status;
     }
@@ -2888,7 +2923,7 @@
 }
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
 /*
  * Set the allowed elliptic curves
@@ -2905,7 +2940,7 @@
     conf->group_list = NULL;
 }
 #endif /* MBEDTLS_DEPRECATED_REMOVED */
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 /*
  * Set the allowed groups
@@ -3842,22 +3877,23 @@
 #endif
         }
     }
-#endif
+#endif /* MBEDTLS_SSL_CLI_C */
+
 #if defined(MBEDTLS_SSL_SRV_C)
     if (ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER) {
-#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-        if (mbedtls_ssl_conf_is_tls13_only(ssl->conf)) {
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && defined(MBEDTLS_SSL_PROTO_TLS1_3)
+        if (ssl->tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
             ret = mbedtls_ssl_tls13_handshake_server_step(ssl);
-        }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
-
-#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
-        if (mbedtls_ssl_conf_is_tls12_only(ssl->conf)) {
+        } else {
             ret = mbedtls_ssl_handshake_server_step(ssl);
         }
-#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
-    }
+#elif defined(MBEDTLS_SSL_PROTO_TLS1_2)
+        ret = mbedtls_ssl_handshake_server_step(ssl);
+#else
+        ret = mbedtls_ssl_tls13_handshake_server_step(ssl);
 #endif
+    }
+#endif /* MBEDTLS_SSL_SRV_C */
 
     if (ret != 0) {
         /* handshake_step return error. And it is same
@@ -4047,14 +4083,14 @@
         return;
     }
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
     if (ssl->handshake->group_list_heap_allocated) {
         mbedtls_free((void *) handshake->group_list);
     }
     handshake->group_list = NULL;
 #endif /* MBEDTLS_DEPRECATED_REMOVED */
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
 #if !defined(MBEDTLS_DEPRECATED_REMOVED)
@@ -4077,18 +4113,18 @@
     }
 #endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_abort(&handshake->fin_sha256_psa);
 #else
-    mbedtls_sha256_free(&handshake->fin_sha256);
+    mbedtls_md_free(&handshake->fin_sha256);
 #endif
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_abort(&handshake->fin_sha384_psa);
 #else
-    mbedtls_sha512_free(&handshake->fin_sha384);
+    mbedtls_md_free(&handshake->fin_sha384);
 #endif
 #endif
 
@@ -4179,12 +4215,12 @@
     mbedtls_ssl_buffering_free(ssl);
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-#if defined(MBEDTLS_ECDH_C) && \
+#if defined(PSA_WANT_ALG_ECDH) && \
     (defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3))
     if (handshake->ecdh_psa_privkey_is_external == 0) {
         psa_destroy_key(handshake->ecdh_psa_privkey);
     }
-#endif /* MBEDTLS_ECDH_C && MBEDTLS_USE_PSA_CRYPTO */
+#endif /* PSA_WANT_ALG_ECDH && (MBEDTLS_USE_PSA_CRYPTO || MBEDTLS_SSL_PROTO_TLS1_3) */
 
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
     mbedtls_ssl_transform_free(handshake->transform_handshake);
@@ -4955,53 +4991,56 @@
  */
 static uint16_t ssl_preset_default_sig_algs[] = {
 
-#if defined(MBEDTLS_ECDSA_C) &&  defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME) &&  \
+    defined(MBEDTLS_MD_CAN_SHA256) && \
     defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256,
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA &&
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME && MBEDTLS_MD_CAN_SHA256 &&
           MBEDTLS_ECP_DP_SECP256R1_ENABLED */
 
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME) && \
+    defined(MBEDTLS_MD_CAN_SHA384) && \
     defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384,
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA&&
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME && MBEDTLS_MD_CAN_SHA384&&
           MBEDTLS_ECP_DP_SECP384R1_ENABLED */
 
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME) && \
+    defined(MBEDTLS_MD_CAN_SHA512) && \
     defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512,
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA&&
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME && MBEDTLS_MD_CAN_SHA384&&
           MBEDTLS_ECP_DP_SECP521R1_ENABLED */
 
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \
-    defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+    defined(MBEDTLS_MD_CAN_SHA512)
     MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA512,
 #endif \
-    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_MD_CAN_SHA512 */
 
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \
-    defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+    defined(MBEDTLS_MD_CAN_SHA384)
     MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384,
 #endif \
-    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_MD_CAN_SHA384 */
 
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+    defined(MBEDTLS_MD_CAN_SHA256)
     MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256,
 #endif \
-    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_MD_CAN_SHA512)
     MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA512,
-#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA512_C */
+#endif /* MBEDTLS_RSA_C && MBEDTLS_MD_CAN_SHA512 */
 
-#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_MD_CAN_SHA384)
     MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA384,
-#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA384_C */
+#endif /* MBEDTLS_RSA_C && MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_MD_CAN_SHA256)
     MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256,
-#endif /* MBEDTLS_RSA_C && MBEDTLS_SHA256_C */
+#endif /* MBEDTLS_RSA_C && MBEDTLS_MD_CAN_SHA256 */
 
     MBEDTLS_TLS_SIG_NONE
 };
@@ -5009,8 +5048,8 @@
 /* NOTICE: see above */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 static uint16_t ssl_tls12_preset_default_sig_algs[] = {
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_MD_CAN_SHA512)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA512),
 #endif
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
@@ -5019,9 +5058,9 @@
 #if defined(MBEDTLS_RSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA, MBEDTLS_SSL_HASH_SHA512),
 #endif
-#endif /* MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
-#if defined(MBEDTLS_ECDSA_C)
+#endif /* MBEDTLS_MD_CAN_SHA512*/
+#if defined(MBEDTLS_MD_CAN_SHA384)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA384),
 #endif
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
@@ -5030,9 +5069,9 @@
 #if defined(MBEDTLS_RSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA, MBEDTLS_SSL_HASH_SHA384),
 #endif
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
-#if defined(MBEDTLS_ECDSA_C)
+#endif /* MBEDTLS_MD_CAN_SHA384*/
+#if defined(MBEDTLS_MD_CAN_SHA256)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA256),
 #endif
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
@@ -5041,34 +5080,34 @@
 #if defined(MBEDTLS_RSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA, MBEDTLS_SSL_HASH_SHA256),
 #endif
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
     MBEDTLS_TLS_SIG_NONE
 };
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 /* NOTICE: see above */
 static uint16_t ssl_preset_suiteb_sig_algs[] = {
 
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_MD_CAN_SHA256) && \
     defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256,
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA&&
+#endif /* MBEDTLS_ECDSA_C && MBEDTLS_MD_CAN_SHA256&&
           MBEDTLS_ECP_DP_SECP256R1_ENABLED */
 
-#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
+#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_MD_CAN_SHA384) && \
     defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
     MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384,
-#endif /* MBEDTLS_ECDSA_C && MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA&&
+#endif /* MBEDTLS_ECDSA_C && MBEDTLS_MD_CAN_SHA384&&
           MBEDTLS_ECP_DP_SECP384R1_ENABLED */
 
 #if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT) && \
-    defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+    defined(MBEDTLS_MD_CAN_SHA256)
     MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256,
 #endif \
-    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+    /* MBEDTLS_X509_RSASSA_PSS_SUPPORT && MBEDTLS_MD_CAN_SHA256*/
 
-#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_MD_CAN_SHA256)
     MBEDTLS_TLS1_3_SIG_RSA_PKCS1_SHA256,
-#endif /* MBEDTLS_RSA_C && MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_RSA_C && MBEDTLS_MD_CAN_SHA256*/
 
     MBEDTLS_TLS_SIG_NONE
 };
@@ -5076,22 +5115,22 @@
 /* NOTICE: see above */
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2)
 static uint16_t ssl_tls12_preset_suiteb_sig_algs[] = {
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 #if defined(MBEDTLS_ECDSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA256),
 #endif
 #if defined(MBEDTLS_RSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA, MBEDTLS_SSL_HASH_SHA256),
 #endif
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#endif /* MBEDTLS_MD_CAN_SHA256*/
+#if defined(MBEDTLS_MD_CAN_SHA384)
 #if defined(MBEDTLS_ECDSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA, MBEDTLS_SSL_HASH_SHA384),
 #endif
 #if defined(MBEDTLS_RSA_C)
     MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_RSA, MBEDTLS_SSL_HASH_SHA384),
 #endif
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
     MBEDTLS_TLS_SIG_NONE
 };
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
@@ -5261,14 +5300,8 @@
 #endif
     } else {
 #if defined(MBEDTLS_SSL_PROTO_TLS1_2) && defined(MBEDTLS_SSL_PROTO_TLS1_3)
-        if (endpoint == MBEDTLS_SSL_IS_CLIENT) {
-            conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
-            conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
-        } else {
-            /* Hybrid TLS 1.2 / 1.3 is not supported on server side yet */
-            conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
-            conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
-        }
+        conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
+        conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
 #elif defined(MBEDTLS_SSL_PROTO_TLS1_3)
         conf->min_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
         conf->max_tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
@@ -5382,7 +5415,7 @@
 }
 
 #if defined(MBEDTLS_PK_C) && \
-    (defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C))
+    (defined(MBEDTLS_RSA_C) || defined(MBEDTLS_PK_CAN_ECDSA_SOME))
 /*
  * Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX
  */
@@ -5393,7 +5426,7 @@
         return MBEDTLS_SSL_SIG_RSA;
     }
 #endif
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
     if (mbedtls_pk_can_do(pk, MBEDTLS_PK_ECDSA)) {
         return MBEDTLS_SSL_SIG_ECDSA;
     }
@@ -5421,7 +5454,7 @@
         case MBEDTLS_SSL_SIG_RSA:
             return MBEDTLS_PK_RSA;
 #endif
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
         case MBEDTLS_SSL_SIG_ECDSA:
             return MBEDTLS_PK_ECDSA;
 #endif
@@ -5429,7 +5462,7 @@
             return MBEDTLS_PK_NONE;
     }
 }
-#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */
+#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_PK_CAN_ECDSA_SOME ) */
 
 /*
  * Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX
@@ -5437,27 +5470,27 @@
 mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash(unsigned char hash)
 {
     switch (hash) {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
         case MBEDTLS_SSL_HASH_MD5:
             return MBEDTLS_MD_MD5;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
         case MBEDTLS_SSL_HASH_SHA1:
             return MBEDTLS_MD_SHA1;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
         case MBEDTLS_SSL_HASH_SHA224:
             return MBEDTLS_MD_SHA224;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_SSL_HASH_SHA256:
             return MBEDTLS_MD_SHA256;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_SSL_HASH_SHA384:
             return MBEDTLS_MD_SHA384;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_SSL_HASH_SHA512:
             return MBEDTLS_MD_SHA512;
 #endif
@@ -5472,27 +5505,27 @@
 unsigned char mbedtls_ssl_hash_from_md_alg(int md)
 {
     switch (md) {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
         case MBEDTLS_MD_MD5:
             return MBEDTLS_SSL_HASH_MD5;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
         case MBEDTLS_MD_SHA1:
             return MBEDTLS_SSL_HASH_SHA1;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
         case MBEDTLS_MD_SHA224:
             return MBEDTLS_SSL_HASH_SHA224;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_MD_SHA256:
             return MBEDTLS_SSL_HASH_SHA256;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_MD_SHA384:
             return MBEDTLS_SSL_HASH_SHA384;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_MD_SHA512:
             return MBEDTLS_SSL_HASH_SHA512;
 #endif
@@ -5522,7 +5555,7 @@
     return -1;
 }
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
 /*
  * Same as mbedtls_ssl_check_curve_tls_id() but with a mbedtls_ecp_group_id.
  */
@@ -5536,7 +5569,7 @@
 
     return mbedtls_ssl_check_curve_tls_id(ssl, tls_id);
 }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
 #if defined(MBEDTLS_DEBUG_C)
 #define EC_NAME(_name_)     _name_
@@ -5728,13 +5761,13 @@
     *olen = 0;
 
     switch (md) {
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_MD_SHA384:
             hash_operation_to_clone = &ssl->handshake->fin_sha384_psa;
             break;
 #endif
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_MD_SHA256:
             hash_operation_to_clone = &ssl->handshake->fin_sha256_psa;
             break;
@@ -5755,15 +5788,15 @@
     }
 
 exit:
-#if !defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
-    !defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if !defined(MBEDTLS_MD_CAN_SHA384) && \
+    !defined(MBEDTLS_MD_CAN_SHA256)
     (void) ssl;
 #endif
-    return psa_ssl_status_to_mbedtls(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 #else /* MBEDTLS_USE_PSA_CRYPTO */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_get_handshake_transcript_sha384(mbedtls_ssl_context *ssl,
                                                unsigned char *dst,
@@ -5771,17 +5804,24 @@
                                                size_t *olen)
 {
     int ret;
-    mbedtls_sha512_context sha512;
+    mbedtls_md_context_t sha384;
 
     if (dst_len < 48) {
         return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    mbedtls_sha512_init(&sha512);
-    mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha384);
+    mbedtls_md_init(&sha384);
+    ret = mbedtls_md_setup(&sha384, mbedtls_md_info_from_type(MBEDTLS_MD_SHA384), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha384, &ssl->handshake->fin_sha384);
+    if (ret != 0) {
+        goto exit;
+    }
 
-    if ((ret = mbedtls_sha512_finish(&sha512, dst)) != 0) {
-        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha512_finish", ret);
+    if ((ret = mbedtls_md_finish(&sha384, dst)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_finish", ret);
         goto exit;
     }
 
@@ -5789,12 +5829,12 @@
 
 exit:
 
-    mbedtls_sha512_free(&sha512);
+    mbedtls_md_free(&sha384);
     return ret;
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_get_handshake_transcript_sha256(mbedtls_ssl_context *ssl,
                                                unsigned char *dst,
@@ -5802,17 +5842,24 @@
                                                size_t *olen)
 {
     int ret;
-    mbedtls_sha256_context sha256;
+    mbedtls_md_context_t sha256;
 
     if (dst_len < 32) {
         return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    mbedtls_sha256_init(&sha256);
-    mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256);
+    mbedtls_md_init(&sha256);
+    ret = mbedtls_md_setup(&sha256, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha256, &ssl->handshake->fin_sha256);
+    if (ret != 0) {
+        goto exit;
+    }
 
-    if ((ret = mbedtls_sha256_finish(&sha256, dst)) != 0) {
-        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_sha256_finish", ret);
+    if ((ret = mbedtls_md_finish(&sha256, dst)) != 0) {
+        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_md_finish", ret);
         goto exit;
     }
 
@@ -5820,10 +5867,10 @@
 
 exit:
 
-    mbedtls_sha256_free(&sha256);
+    mbedtls_md_free(&sha256);
     return ret;
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
 int mbedtls_ssl_get_handshake_transcript(mbedtls_ssl_context *ssl,
                                          const mbedtls_md_type_t md,
@@ -5833,19 +5880,19 @@
 {
     switch (md) {
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_MD_SHA384:
             return ssl_get_handshake_transcript_sha384(ssl, dst, dst_len, olen);
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA384*/
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_MD_SHA256:
             return ssl_get_handshake_transcript_sha256(ssl, dst, dst_len, olen);
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 
         default:
-#if !defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
-            !defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if !defined(MBEDTLS_MD_CAN_SHA384) && \
+            !defined(MBEDTLS_MD_CAN_SHA256)
             (void) ssl;
             (void) dst;
             (void) dst_len;
@@ -6111,8 +6158,8 @@
 #else /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_MD_C) &&       \
-    (defined(MBEDTLS_SHA256_C) || \
-    defined(MBEDTLS_SHA384_C))
+    (defined(MBEDTLS_MD_CAN_SHA256) || \
+    defined(MBEDTLS_MD_CAN_SHA384))
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int tls_prf_generic(mbedtls_md_type_t md_type,
                            const unsigned char *secret, size_t slen,
@@ -6216,10 +6263,10 @@
 
     return ret;
 }
-#endif /* MBEDTLS_MD_C && ( MBEDTLS_SHA256_C || MBEDTLS_SHA384_C ) */
+#endif /* MBEDTLS_MD_C && ( MBEDTLS_MD_CAN_SHA256 || MBEDTLS_MD_CAN_SHA384 ) */
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int tls_prf_sha256(const unsigned char *secret, size_t slen,
                           const char *label,
@@ -6229,9 +6276,9 @@
     return tls_prf_generic(MBEDTLS_MD_SHA256, secret, slen,
                            label, random, rlen, dstbuf, dlen);
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int tls_prf_sha384(const unsigned char *secret, size_t slen,
                           const char *label,
@@ -6241,7 +6288,7 @@
     return tls_prf_generic(MBEDTLS_MD_SHA384, secret, slen,
                            label, random, rlen, dstbuf, dlen);
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA384*/
 
 /*
  * Set appropriate PRF function and other SSL / TLS1.2 functions
@@ -6256,14 +6303,14 @@
 static int ssl_set_handshake_prfs(mbedtls_ssl_handshake_params *handshake,
                                   mbedtls_md_type_t hash)
 {
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     if (hash == MBEDTLS_MD_SHA384) {
         handshake->tls_prf = tls_prf_sha384;
         handshake->calc_verify = ssl_calc_verify_tls_sha384;
         handshake->calc_finished = ssl_calc_finished_tls_sha384;
     } else
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         (void) hash;
         handshake->tls_prf = tls_prf_sha256;
@@ -6553,12 +6600,12 @@
 int mbedtls_ssl_set_calc_verify_md(mbedtls_ssl_context *ssl, int md)
 {
     switch (md) {
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_SSL_HASH_SHA384:
             ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384;
             break;
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_SSL_HASH_SHA256:
             ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256;
             break;
@@ -6566,14 +6613,14 @@
         default:
             return -1;
     }
-#if !defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
-    !defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if !defined(MBEDTLS_MD_CAN_SHA384) && \
+    !defined(MBEDTLS_MD_CAN_SHA256)
     (void) ssl;
 #endif
     return 0;
 }
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 int ssl_calc_verify_tls_sha256(const mbedtls_ssl_context *ssl,
                                unsigned char *hash,
                                size_t *hlen)
@@ -6600,18 +6647,25 @@
 
 exit:
     psa_hash_abort(&sha256_psa);
-    return mbedtls_md_error_from_psa(status);
+    return PSA_TO_MD_ERR(status);
 #else
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_sha256_context sha256;
+    mbedtls_md_context_t sha256;
 
-    mbedtls_sha256_init(&sha256);
+    mbedtls_md_init(&sha256);
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha256"));
 
-    mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256);
+    ret = mbedtls_md_setup(&sha256, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha256, &ssl->handshake->fin_sha256);
+    if (ret != 0) {
+        goto exit;
+    }
 
-    ret = mbedtls_sha256_finish(&sha256, hash);
+    ret = mbedtls_md_finish(&sha256, hash);
     if (ret != 0) {
         goto exit;
     }
@@ -6622,13 +6676,13 @@
     MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
 exit:
-    mbedtls_sha256_free(&sha256);
+    mbedtls_md_free(&sha256);
     return ret;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA256 */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 int ssl_calc_verify_tls_sha384(const mbedtls_ssl_context *ssl,
                                unsigned char *hash,
                                size_t *hlen)
@@ -6655,18 +6709,25 @@
 
 exit:
     psa_hash_abort(&sha384_psa);
-    return mbedtls_md_error_from_psa(status);
+    return PSA_TO_MD_ERR(status);
 #else
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_sha512_context sha512;
+    mbedtls_md_context_t sha384;
 
-    mbedtls_sha512_init(&sha512);
+    mbedtls_md_init(&sha384);
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc verify sha384"));
 
-    mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha384);
+    ret = mbedtls_md_setup(&sha384, mbedtls_md_info_from_type(MBEDTLS_MD_SHA384), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha384, &ssl->handshake->fin_sha384);
+    if (ret != 0) {
+        goto exit;
+    }
 
-    ret = mbedtls_sha512_finish(&sha512, hash);
+    ret = mbedtls_md_finish(&sha384, hash);
     if (ret != 0) {
         goto exit;
     }
@@ -6677,11 +6738,11 @@
     MBEDTLS_SSL_DEBUG_MSG(2, ("<= calc verify"));
 
 exit:
-    mbedtls_sha512_free(&sha512);
+    mbedtls_md_free(&sha384);
     return ret;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA384 */
 
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                      \
     defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
@@ -7316,7 +7377,7 @@
      * Secondary checks: always done, but change 'ret' only if it was 0
      */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     {
         const mbedtls_pk_context *pk = &chain->pk;
 
@@ -7344,7 +7405,7 @@
             }
         }
     }
-#endif /* MBEDTLS_ECP_C */
+#endif /* MBEDTLS_ECP_LIGHT */
 
     if (mbedtls_ssl_check_cert_usage(chain,
                                      ciphersuite_info,
@@ -7621,7 +7682,7 @@
 }
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
 static int ssl_calc_finished_tls_sha256(
     mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
@@ -7634,7 +7695,7 @@
     psa_status_t status;
 #else
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_sha256_context sha256;
+    mbedtls_md_context_t sha256;
 #endif
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
@@ -7663,11 +7724,18 @@
     MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 32);
 #else
 
-    mbedtls_sha256_init(&sha256);
+    mbedtls_md_init(&sha256);
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished tls sha256"));
 
-    mbedtls_sha256_clone(&sha256, &ssl->handshake->fin_sha256);
+    ret = mbedtls_md_setup(&sha256, mbedtls_md_info_from_type(MBEDTLS_MD_SHA256), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha256, &ssl->handshake->fin_sha256);
+    if (ret != 0) {
+        goto exit;
+    }
 
     /*
      * TLSv1.2:
@@ -7675,17 +7743,14 @@
      *               Hash( handshake ) )[0.11]
      */
 
-#if !defined(MBEDTLS_SHA256_ALT)
-    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha2 state", (unsigned char *)
-                          sha256.state, sizeof(sha256.state));
-#endif
-
-    ret = mbedtls_sha256_finish(&sha256, padbuf);
+    ret = mbedtls_md_finish(&sha256, padbuf);
     if (ret != 0) {
         goto exit;
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha256 output", padbuf, 32);
+
     ssl->handshake->tls_prf(session->master, 48, sender,
                             padbuf, 32, buf, len);
 
@@ -7698,16 +7763,16 @@
 exit:
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_abort(&sha256_psa);
-    return mbedtls_md_error_from_psa(status);
+    return PSA_TO_MD_ERR(status);
 #else
-    mbedtls_sha256_free(&sha256);
+    mbedtls_md_free(&sha256);
     return ret;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA256*/
 
 
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
 static int ssl_calc_finished_tls_sha384(
     mbedtls_ssl_context *ssl, unsigned char *buf, int from)
 {
@@ -7720,7 +7785,7 @@
     psa_status_t status;
 #else
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_sha512_context sha512;
+    mbedtls_md_context_t sha384;
 #endif
 
     mbedtls_ssl_session *session = ssl->session_negotiate;
@@ -7748,11 +7813,18 @@
     }
     MBEDTLS_SSL_DEBUG_BUF(3, "PSA calculated padbuf", padbuf, 48);
 #else
-    mbedtls_sha512_init(&sha512);
+    mbedtls_md_init(&sha384);
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> calc  finished tls sha384"));
 
-    mbedtls_sha512_clone(&sha512, &ssl->handshake->fin_sha384);
+    ret = mbedtls_md_setup(&sha384, mbedtls_md_info_from_type(MBEDTLS_MD_SHA384), 0);
+    if (ret != 0) {
+        goto exit;
+    }
+    ret = mbedtls_md_clone(&sha384, &ssl->handshake->fin_sha384);
+    if (ret != 0) {
+        goto exit;
+    }
 
     /*
      * TLSv1.2:
@@ -7760,16 +7832,14 @@
      *               Hash( handshake ) )[0.11]
      */
 
-#if !defined(MBEDTLS_SHA512_ALT)
-    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha512 state", (unsigned char *)
-                          sha512.state, sizeof(sha512.state));
-#endif
-    ret = mbedtls_sha512_finish(&sha512, padbuf);
+    ret = mbedtls_md_finish(&sha384, padbuf);
     if (ret != 0) {
         goto exit;
     }
 #endif
 
+    MBEDTLS_SSL_DEBUG_BUF(4, "finished sha384 output", padbuf, 48);
+
     ssl->handshake->tls_prf(session->master, 48, sender,
                             padbuf, 48, buf, len);
 
@@ -7782,13 +7852,13 @@
 exit:
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     psa_hash_abort(&sha384_psa);
-    return mbedtls_md_error_from_psa(status);
+    return PSA_TO_MD_ERR(status);
 #else
-    mbedtls_sha512_free(&sha512);
+    mbedtls_md_free(&sha384);
     return ret;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA*/
+#endif /* MBEDTLS_MD_CAN_SHA384*/
 
 void mbedtls_ssl_handshake_wrapup_free_hs_transform(mbedtls_ssl_context *ssl)
 {
@@ -8080,20 +8150,20 @@
 {
     const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
         mbedtls_ssl_ciphersuite_from_id(ciphersuite_id);
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     if (ciphersuite_info != NULL && ciphersuite_info->mac == MBEDTLS_MD_SHA384) {
         return tls_prf_sha384;
     } else
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     {
         if (ciphersuite_info != NULL && ciphersuite_info->mac == MBEDTLS_MD_SHA256) {
             return tls_prf_sha256;
         }
     }
 #endif
-#if !defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA) && \
-    !defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if !defined(MBEDTLS_MD_CAN_SHA384) && \
+    !defined(MBEDTLS_MD_CAN_SHA256)
     (void) ciphersuite_info;
 #endif
 
@@ -8104,12 +8174,12 @@
 static mbedtls_tls_prf_types tls_prf_get_type(mbedtls_ssl_tls_prf_cb *tls_prf)
 {
     ((void) tls_prf);
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
     if (tls_prf == tls_prf_sha384) {
         return MBEDTLS_SSL_TLS_PRF_SHA384;
     } else
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
     if (tls_prf == tls_prf_sha256) {
         return MBEDTLS_SSL_TLS_PRF_SHA256;
     } else
@@ -8230,7 +8300,7 @@
                                             &alg,
                                             &key_type,
                                             &key_bits)) != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_cipher_to_psa", ret);
         goto end;
     }
@@ -8478,7 +8548,7 @@
                                      PSA_BITS_TO_BYTES(key_bits),
                                      &transform->psa_key_enc)) != PSA_SUCCESS) {
             MBEDTLS_SSL_DEBUG_RET(3, "psa_import_key", (int) status);
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_import_key", ret);
             goto end;
         }
@@ -8489,7 +8559,7 @@
                                      key2,
                                      PSA_BITS_TO_BYTES(key_bits),
                                      &transform->psa_key_dec)) != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_import_key", ret);
             goto end;
         }
@@ -8552,7 +8622,7 @@
         if ((status = psa_import_key(&attributes,
                                      mac_enc, mac_key_len,
                                      &transform->psa_mac_enc)) != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_import_mac_key", ret);
             goto end;
         }
@@ -8573,7 +8643,7 @@
         if ((status = psa_import_key(&attributes,
                                      mac_dec, mac_key_len,
                                      &transform->psa_mac_dec)) != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_import_mac_key", ret);
             goto end;
         }
@@ -8628,7 +8698,7 @@
             status = psa_pake_input(pake_ctx, step,
                                     buf + input_offset, length);
             if (status != PSA_SUCCESS) {
-                return psa_ssl_status_to_mbedtls(status);
+                return PSA_TO_MBEDTLS_ERR(status);
             }
 
             input_offset += length;
@@ -8670,7 +8740,7 @@
                                      len - output_offset - 1,
                                      &output_len);
             if (status != PSA_SUCCESS) {
-                return psa_ssl_status_to_mbedtls(status);
+                return PSA_TO_MBEDTLS_ERR(status);
             }
 
             *(buf + output_offset) = (uint8_t) output_len;
diff --git a/library/ssl_tls12_client.c b/library/ssl_tls12_client.c
index fc99fde..d94d829 100644
--- a/library/ssl_tls12_client.c
+++ b/library/ssl_tls12_client.c
@@ -33,6 +33,9 @@
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
 #include "mbedtls/psa_util.h"
 #include "psa/crypto.h"
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #include <string.h>
@@ -828,11 +831,9 @@
     while (list_size > 0) {
         if (p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
             p[0] == MBEDTLS_ECP_PF_COMPRESSED) {
-#if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-            (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C))
+#if !defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C)
             ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif /* !MBEDTLS_USE_PSA_CRYPTO &&
-          ( MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ) */
+#endif /* !MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_ECDH_C */
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
             defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             mbedtls_ecjpake_set_point_format(&ssl->handshake->ecjpake_ctx,
@@ -2951,7 +2952,7 @@
         status = psa_generate_key(&key_attributes,
                                   &handshake->ecdh_psa_privkey);
         if (status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         }
 
         /* Export the public part of the ECDH private key from PSA.
@@ -2968,7 +2969,7 @@
         if (status != PSA_SUCCESS) {
             psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         }
 
         *p = (unsigned char) own_pubkey_len;
@@ -3000,9 +3001,9 @@
         handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
 
         if (status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         } else if (destruction_status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(destruction_status);
+            return PSA_TO_MBEDTLS_ERR(destruction_status);
         }
 
         /* Write the ECDH computation length before the ECDH computation */
diff --git a/library/ssl_tls12_server.c b/library/ssl_tls12_server.c
index d5c8b7c..42f5fe9 100644
--- a/library/ssl_tls12_server.c
+++ b/library/ssl_tls12_server.c
@@ -34,6 +34,12 @@
 
 #include <string.h>
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+#endif
+
 #if defined(MBEDTLS_ECP_C)
 #include "mbedtls/ecp.h"
 #endif
@@ -134,7 +140,7 @@
     return 0;
 }
 
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
+#if defined(MBEDTLS_PK_CAN_ECDH) || defined(MBEDTLS_PK_CAN_ECDSA_SOME) || \
     defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
 /*
  * Function for parsing a supported groups (TLS 1.3) or supported elliptic
@@ -260,11 +266,9 @@
     while (list_size > 0) {
         if (p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
             p[0] == MBEDTLS_ECP_PF_COMPRESSED) {
-#if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
-            (defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C))
+#if !defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_ECDH_C)
             ssl->handshake->ecdh_ctx.point_format = p[0];
-#endif /* !MBEDTLS_USE_PSA_CRYPTO &&
-          ( MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ) */
+#endif /* !MBEDTLS_USE_PSA_CRYPTO && MBEDTLS_ECDH_C */
 #if !defined(MBEDTLS_USE_PSA_CRYPTO) &&                             \
             defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             mbedtls_ecjpake_set_point_format(&ssl->handshake->ecjpake_ctx,
@@ -280,7 +284,7 @@
 
     return 0;
 }
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
+#endif /* MBEDTLS_PK_CAN_ECDH || MBEDTLS_PK_CAN_ECDSA_SOME ||
           MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
@@ -656,7 +660,7 @@
 /*
  * Return 0 if the given key uses one of the acceptable curves, -1 otherwise
  */
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_check_key_curve(mbedtls_pk_context *pk,
                                uint16_t *curves_tls_id)
@@ -675,7 +679,7 @@
 
     return -1;
 }
-#endif /* MBEDTLS_ECDSA_C */
+#endif /* MBEDTLS_PK_CAN_ECDSA_SOME */
 
 /*
  * Try picking a certificate for this ciphersuite,
@@ -760,7 +764,7 @@
             continue;
         }
 
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
         if (pk_alg == MBEDTLS_PK_ECDSA &&
             ssl_check_key_curve(&cur->cert->pk,
                                 ssl->handshake->curves_tls_id) != 0) {
@@ -824,7 +828,7 @@
 #endif
 
 
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDH) || defined(MBEDTLS_PK_CAN_ECDSA_SOME)
     if (mbedtls_ssl_ciphersuite_uses_ec(suite_info) &&
         (ssl->handshake->curves_tls_id == NULL ||
          ssl->handshake->curves_tls_id[0] == 0)) {
@@ -916,12 +920,15 @@
      * If renegotiating, then the input was read with mbedtls_ssl_read_record(),
      * otherwise read it ourselves manually in order to support SSLv2
      * ClientHello, which doesn't use the same record layer format.
+     * Otherwise in a scenario of TLS 1.3/TLS 1.2 version negotiation, the
+     * ClientHello has been already fully fetched by the TLS 1.3 code and the
+     * flag ssl->keep_current_message is raised.
      */
     renegotiating = 0;
 #if defined(MBEDTLS_SSL_RENEGOTIATION)
     renegotiating = (ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE);
 #endif
-    if (!renegotiating) {
+    if (!renegotiating && !ssl->keep_current_message) {
         if ((ret = mbedtls_ssl_fetch_input(ssl, 5)) != 0) {
             /* No alert on a read error. */
             MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
@@ -996,24 +1003,28 @@
     } else
 #endif
     {
-        if (msg_len > MBEDTLS_SSL_IN_CONTENT_LEN) {
-            MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
-            return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
-        }
+        if (ssl->keep_current_message) {
+            ssl->keep_current_message = 0;
+        } else {
+            if (msg_len > MBEDTLS_SSL_IN_CONTENT_LEN) {
+                MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+                return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
+            }
 
-        if ((ret = mbedtls_ssl_fetch_input(ssl,
-                                           mbedtls_ssl_in_hdr_len(ssl) + msg_len)) != 0) {
-            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
-            return ret;
-        }
+            if ((ret = mbedtls_ssl_fetch_input(ssl,
+                                               mbedtls_ssl_in_hdr_len(ssl) + msg_len)) != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_fetch_input", ret);
+                return ret;
+            }
 
-        /* Done reading this record, get ready for the next one */
+            /* Done reading this record, get ready for the next one */
 #if defined(MBEDTLS_SSL_PROTO_DTLS)
-        if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
-            ssl->next_record_offset = msg_len + mbedtls_ssl_in_hdr_len(ssl);
-        } else
+            if (ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) {
+                ssl->next_record_offset = msg_len + mbedtls_ssl_in_hdr_len(ssl);
+            } else
 #endif
-        ssl->in_left = 0;
+            ssl->in_left = 0;
+        }
     }
 
     buf = ssl->in_msg;
@@ -1363,7 +1374,7 @@
                 break;
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
-#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
+#if defined(MBEDTLS_PK_CAN_ECDH) || defined(MBEDTLS_PK_CAN_ECDSA_SOME) || \
                 defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
             case MBEDTLS_TLS_EXT_SUPPORTED_GROUPS:
                 MBEDTLS_SSL_DEBUG_MSG(3, ("found supported elliptic curves extension"));
@@ -1383,7 +1394,7 @@
                     return ret;
                 }
                 break;
-#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
+#endif /* MBEDTLS_PK_CAN_ECDH || MBEDTLS_PK_CAN_ECDSA_SOME ||
           MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
 
 #if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
@@ -1493,7 +1504,7 @@
     if (!sig_hash_alg_ext_present) {
         uint16_t *received_sig_algs = ssl->handshake->received_sig_algs;
         const uint16_t default_sig_algs[] = {
-#if defined(MBEDTLS_ECDSA_C)
+#if defined(MBEDTLS_PK_CAN_ECDSA_SOME)
             MBEDTLS_SSL_TLS12_SIG_AND_HASH_ALG(MBEDTLS_SSL_SIG_ECDSA,
                                                MBEDTLS_SSL_HASH_SHA1),
 #endif
@@ -1504,10 +1515,9 @@
             MBEDTLS_TLS_SIG_NONE
         };
 
-#if defined(static_assert)
-        static_assert(sizeof(default_sig_algs) / sizeof(default_sig_algs[0]) <=
-                      MBEDTLS_RECEIVED_SIG_ALGS_SIZE, "default_sig_algs is too big");
-#endif
+        MBEDTLS_STATIC_ASSERT(sizeof(default_sig_algs) / sizeof(default_sig_algs[0])
+                              <= MBEDTLS_RECEIVED_SIG_ALGS_SIZE,
+                              "default_sig_algs is too big");
 
         memcpy(received_sig_algs, default_sig_algs, sizeof(default_sig_algs));
     }
@@ -2203,11 +2213,37 @@
     p += 4;
 #endif /* MBEDTLS_HAVE_TIME */
 
-    if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, p, 28)) != 0) {
+    if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, p, 20)) != 0) {
         return ret;
     }
+    p += 20;
 
-    p += 28;
+#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
+    /*
+     * RFC 8446
+     * TLS 1.3 has a downgrade protection mechanism embedded in the server's
+     * random value. TLS 1.3 servers which negotiate TLS 1.2 or below in
+     * response to a ClientHello MUST set the last 8 bytes of their Random
+     * value specially in their ServerHello.
+     */
+    if (mbedtls_ssl_conf_is_tls13_enabled(ssl->conf)) {
+        static const unsigned char magic_tls12_downgrade_string[] =
+        { 'D', 'O', 'W', 'N', 'G', 'R', 'D', 1 };
+
+        MBEDTLS_STATIC_ASSERT(
+            sizeof(magic_tls12_downgrade_string) == 8,
+            "magic_tls12_downgrade_string does not have the expected size");
+
+        memcpy(p, magic_tls12_downgrade_string,
+               sizeof(magic_tls12_downgrade_string));
+    } else
+#endif
+    {
+        if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, p, 8)) != 0) {
+            return ret;
+        }
+    }
+    p += 8;
 
     memcpy(ssl->handshake->randbytes + 32, buf + 6, 32);
 
@@ -2588,7 +2624,7 @@
                                             &key_attributes);
             if (status != PSA_SUCCESS) {
                 ssl->handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-                return psa_ssl_status_to_mbedtls(status);
+                return PSA_TO_MBEDTLS_ERR(status);
             }
 
             ssl->handshake->ecdh_psa_type = psa_get_key_type(&key_attributes);
@@ -2635,7 +2671,7 @@
             status = psa_import_key(&key_attributes, buf, key_len,
                                     &ssl->handshake->ecdh_psa_privkey);
             if (status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
                 goto cleanup;
             }
 
@@ -2956,7 +2992,7 @@
         status = psa_generate_key(&key_attributes,
                                   &handshake->ecdh_psa_privkey);
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_generate_key", ret);
             return ret;
         }
@@ -2980,7 +3016,7 @@
                                        own_pubkey, own_pubkey_max_len,
                                        &len);
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_export_public_key", ret);
             (void) psa_destroy_key(handshake->ecdh_psa_privkey);
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
@@ -3688,7 +3724,7 @@
             handshake->premaster, sizeof(handshake->premaster),
             &handshake->pmslen);
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_raw_key_agreement", ret);
             if (handshake->ecdh_psa_privkey_is_external == 0) {
                 (void) psa_destroy_key(handshake->ecdh_psa_privkey);
@@ -3701,7 +3737,7 @@
             status = psa_destroy_key(handshake->ecdh_psa_privkey);
 
             if (status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
                 MBEDTLS_SSL_DEBUG_RET(1, "psa_destroy_key", ret);
                 return ret;
             }
@@ -3894,9 +3930,9 @@
         handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
 
         if (status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         } else if (destruction_status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(destruction_status);
+            return PSA_TO_MBEDTLS_ERR(destruction_status);
         }
 
         /* Write the ECDH computation length before the ECDH computation */
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 0dd762e..e1d0c6c 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -34,6 +34,10 @@
 #include "ssl_tls13_keys.h"
 #include "ssl_debug_helpers.h"
 
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+
 /* Write extensions */
 
 /*
@@ -113,7 +117,8 @@
     }
 
     if (&buf[2] != end) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("supported_versions ext data length incorrect"));
+        MBEDTLS_SSL_DEBUG_MSG(
+            1, ("supported_versions ext data length incorrect"));
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR,
                                      MBEDTLS_ERR_SSL_DECODE_ERROR);
         return MBEDTLS_ERR_SSL_DECODE_ERROR;
@@ -180,7 +185,7 @@
         return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(group_id)) {
         int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
         psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
@@ -188,7 +193,7 @@
         /* Destroy generated private key. */
         status = psa_destroy_key(ssl->handshake->ecdh_psa_privkey);
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             MBEDTLS_SSL_DEBUG_RET(1, "psa_destroy_key", ret);
             return ret;
         }
@@ -196,7 +201,7 @@
         ssl->handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
         return 0;
     } else
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
     if (0 /* other KEMs? */) {
         /* Do something */
     }
@@ -215,7 +220,7 @@
     int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
 
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     const uint16_t *group_list = mbedtls_ssl_get_groups(ssl);
     /* Pick first available ECDHE group compatible with TLS 1.3 */
     if (group_list == NULL) {
@@ -223,8 +228,8 @@
     }
 
     for (; *group_list != 0; group_list++) {
-        if ((mbedtls_ssl_get_psa_curve_info_from_tls_id(*group_list,
-                                                        NULL, NULL) == PSA_SUCCESS) &&
+        if ((mbedtls_ssl_get_psa_curve_info_from_tls_id(
+                 *group_list, NULL, NULL) == PSA_SUCCESS) &&
             mbedtls_ssl_tls13_named_group_is_ecdhe(*group_list)) {
             *group_id = *group_list;
             return 0;
@@ -233,7 +238,7 @@
 #else
     ((void) ssl);
     ((void) group_id);
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
     /*
      * Add DHE named groups here.
@@ -297,7 +302,7 @@
      * only one key share entry is allowed.
      */
     client_shares = p;
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(group_id)) {
         /* Pointer to group */
         unsigned char *group = p;
@@ -322,7 +327,7 @@
         /* Write key_exchange_length */
         MBEDTLS_PUT_UINT16_BE(key_exchange_len, group, 2);
     } else
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
     if (0 /* other KEMs? */) {
         /* Do something */
     } else {
@@ -348,7 +353,8 @@
     /* Output the total length of key_share extension. */
     *out_len = p - buf;
 
-    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, key_share extension", buf, *out_len);
+    MBEDTLS_SSL_DEBUG_BUF(
+        3, "client hello, key_share extension", buf, *out_len);
 
     mbedtls_ssl_tls13_set_hs_sent_ext_mask(ssl, MBEDTLS_TLS_EXT_KEY_SHARE);
 
@@ -371,7 +377,7 @@
                                              const unsigned char *buf,
                                              const unsigned char *end)
 {
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     const unsigned char *p = buf;
     int selected_group;
     int found = 0;
@@ -398,8 +404,8 @@
      * then the client MUST abort the handshake with an "illegal_parameter" alert.
      */
     for (; *group_list != 0; group_list++) {
-        if ((mbedtls_ssl_get_psa_curve_info_from_tls_id(*group_list,
-                                                        NULL, NULL) == PSA_ERROR_NOT_SUPPORTED) ||
+        if ((mbedtls_ssl_get_psa_curve_info_from_tls_id(
+                 *group_list, NULL, NULL) == PSA_ERROR_NOT_SUPPORTED) ||
             *group_list != selected_group) {
             continue;
         }
@@ -468,15 +474,15 @@
     /* Check that the chosen group matches the one we offered. */
     offered_group = ssl->handshake->offered_group_id;
     if (offered_group != group) {
-        MBEDTLS_SSL_DEBUG_MSG(1,
-                              ("Invalid server key share, our group %u, their group %u",
-                               (unsigned) offered_group, (unsigned) group));
+        MBEDTLS_SSL_DEBUG_MSG(
+            1, ("Invalid server key share, our group %u, their group %u",
+                (unsigned) offered_group, (unsigned) group));
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE,
                                      MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
         return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
     }
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(group)) {
         if (mbedtls_ssl_get_psa_curve_info_from_tls_id(group, NULL, NULL)
             == PSA_ERROR_NOT_SUPPORTED) {
@@ -484,15 +490,16 @@
             return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
 
-        MBEDTLS_SSL_DEBUG_MSG(2, ("ECDH curve: %s",
-                                  mbedtls_ssl_get_curve_name_from_tls_id(group)));
+        MBEDTLS_SSL_DEBUG_MSG(
+            2,
+            ("ECDH curve: %s", mbedtls_ssl_get_curve_name_from_tls_id(group)));
 
         ret = mbedtls_ssl_tls13_read_public_ecdhe_share(ssl, p, end - p);
         if (ret != 0) {
             return ret;
         }
     } else
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
     if (0 /* other KEMs? */) {
         /* Do something */
     } else {
@@ -1270,7 +1277,7 @@
             ssl->session_negotiate->ciphersuite);
         ssl->handshake->ciphersuite_info = ciphersuite_info;
 
-        /* Enable psk and psk_ephermal to make stage early happy */
+        /* Enable psk and psk_ephemeral to make stage early happy */
         ssl->handshake->key_exchange_mode =
             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL;
 
@@ -1320,8 +1327,8 @@
 {
     const unsigned char *p = buf;
     size_t legacy_session_id_echo_len;
-    size_t extensions_len;
-    const unsigned char *extensions_end;
+    const unsigned char *supported_versions_data;
+    const unsigned char *supported_versions_data_end;
 
     /*
      * Check there is enough data to access the legacy_session_id_echo vector
@@ -1343,45 +1350,9 @@
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, legacy_session_id_echo_len + 4);
     p += legacy_session_id_echo_len + 4;
 
-    /* Case of no extension */
-    if (p == end) {
-        return 0;
-    }
-
-    /* ...
-     * Extension extensions<6..2^16-1>;
-     * ...
-     * struct {
-     *      ExtensionType extension_type; (2 bytes)
-     *      opaque extension_data<0..2^16-1>;
-     * } Extension;
-     */
-    MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, 2);
-    extensions_len = MBEDTLS_GET_UINT16_BE(p, 0);
-    p += 2;
-
-    /* Check extensions do not go beyond the buffer of data. */
-    MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, extensions_len);
-    extensions_end = p + extensions_len;
-
-    while (p < extensions_end) {
-        unsigned int extension_type;
-        size_t extension_data_len;
-
-        MBEDTLS_SSL_CHK_BUF_READ_PTR(p, extensions_end, 4);
-        extension_type = MBEDTLS_GET_UINT16_BE(p, 0);
-        extension_data_len = MBEDTLS_GET_UINT16_BE(p, 2);
-        p += 4;
-
-        if (extension_type == MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS) {
-            return 1;
-        }
-
-        MBEDTLS_SSL_CHK_BUF_READ_PTR(p, extensions_end, extension_data_len);
-        p += extension_data_len;
-    }
-
-    return 0;
+    return mbedtls_ssl_tls13_is_supported_versions_ext_present_in_exts(
+        ssl, p, end,
+        &supported_versions_data, &supported_versions_data_end);
 }
 
 /* Returns a negative value on failure, and otherwise
@@ -1442,8 +1413,8 @@
      * } ServerHello;
      *
      */
-    MBEDTLS_SSL_CHK_BUF_READ_PTR(buf, end,
-                                 2 + sizeof(mbedtls_ssl_tls13_hello_retry_request_magic));
+    MBEDTLS_SSL_CHK_BUF_READ_PTR(
+        buf, end, 2 + sizeof(mbedtls_ssl_tls13_hello_retry_request_magic));
 
     if (memcmp(buf + 2, mbedtls_ssl_tls13_hello_retry_request_magic,
                sizeof(mbedtls_ssl_tls13_hello_retry_request_magic)) == 0) {
@@ -1487,11 +1458,18 @@
             return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
         }
 
+        /*
+         * Version 1.2 of the protocol has been negotiated, set the
+         * ssl->keep_current_message flag for the ServerHello to be kept and
+         * parsed as a TLS 1.2 ServerHello. We also change ssl->tls_version to
+         * MBEDTLS_SSL_VERSION_TLS1_2 thus from now on mbedtls_ssl_handshake_step()
+         * will dispatch to the TLS 1.2 state machine.
+         */
         ssl->keep_current_message = 1;
         ssl->tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
-        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                                MBEDTLS_SSL_HS_SERVER_HELLO,
-                                                                buf, (size_t) (end - buf)));
+        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                                 ssl, MBEDTLS_SSL_HS_SERVER_HELLO,
+                                 buf, (size_t) (end - buf)));
 
         if (mbedtls_ssl_conf_tls13_some_ephemeral_enabled(ssl)) {
             ret = ssl_tls13_reset_key_share(ssl);
@@ -1517,15 +1495,16 @@
             break;
         case SSL_SERVER_HELLO_HRR:
             MBEDTLS_SSL_DEBUG_MSG(2, ("received HelloRetryRequest message"));
-            /* If a client receives a second
-             * HelloRetryRequest in the same connection (i.e., where the ClientHello
-             * was itself in response to a HelloRetryRequest), it MUST abort the
-             * handshake with an "unexpected_message" alert.
+            /* If a client receives a second HelloRetryRequest in the same
+             * connection (i.e., where the ClientHello was itself in response
+             * to a HelloRetryRequest), it MUST abort the handshake with an
+             * "unexpected_message" alert.
              */
             if (handshake->hello_retry_request_count > 0) {
                 MBEDTLS_SSL_DEBUG_MSG(1, ("Multiple HRRs received"));
-                MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
-                                             MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE);
+                MBEDTLS_SSL_PEND_FATAL_ALERT(
+                    MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
+                    MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE);
                 return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
             }
             /*
@@ -1886,20 +1865,25 @@
      *    exchange mode is EPHEMERAL-only.
      */
     switch (handshake->received_extensions &
-            (MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY) | MBEDTLS_SSL_EXT_MASK(KEY_SHARE))) {
+            (MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY) |
+             MBEDTLS_SSL_EXT_MASK(KEY_SHARE))) {
         /* Only the pre_shared_key extension was received */
         case MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY):
-            handshake->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
+            handshake->key_exchange_mode =
+                MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
             break;
 
         /* Only the key_share extension was received */
         case MBEDTLS_SSL_EXT_MASK(KEY_SHARE):
-            handshake->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL;
+            handshake->key_exchange_mode =
+                MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL;
             break;
 
         /* Both the pre_shared_key and key_share extensions were received */
-        case (MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY) | MBEDTLS_SSL_EXT_MASK(KEY_SHARE)):
-            handshake->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
+        case (MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY) |
+              MBEDTLS_SSL_EXT_MASK(KEY_SHARE)):
+            handshake->key_exchange_mode =
+                MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
             break;
 
         /* Neither pre_shared_key nor key_share extension was received */
@@ -1942,15 +1926,15 @@
     if (!mbedtls_ssl_conf_tls13_check_kex_modes(
             ssl, handshake->key_exchange_mode)) {
         ret = MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
-        MBEDTLS_SSL_DEBUG_MSG(2,
-                              ("Key exchange mode(%s) is not supported.",
-                               ssl_tls13_get_kex_mode_str(handshake->key_exchange_mode)));
+        MBEDTLS_SSL_DEBUG_MSG(
+            2, ("Key exchange mode(%s) is not supported.",
+                ssl_tls13_get_kex_mode_str(handshake->key_exchange_mode)));
         goto cleanup;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG(3,
-                          ("Selected key exchange mode: %s",
-                           ssl_tls13_get_kex_mode_str(handshake->key_exchange_mode)));
+    MBEDTLS_SSL_DEBUG_MSG(
+        3, ("Selected key exchange mode: %s",
+            ssl_tls13_get_kex_mode_str(handshake->key_exchange_mode)));
 
     /* Start the TLS 1.3 key scheduling if not already done.
      *
@@ -2034,9 +2018,8 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> %s", __func__));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(ssl,
-                                                               MBEDTLS_SSL_HS_SERVER_HELLO,
-                                                               &buf, &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_SERVER_HELLO, &buf, &buf_len));
 
     ret = ssl_tls13_preprocess_server_hello(ssl, buf, buf + buf_len);
     if (ret < 0) {
@@ -2057,9 +2040,8 @@
         MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_reset_transcript_for_hrr(ssl));
     }
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_SERVER_HELLO, buf,
-                                                            buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_SERVER_HELLO, buf, buf_len));
 
     if (is_hrr) {
         MBEDTLS_SSL_PROC_CHK(ssl_tls13_postprocess_hrr(ssl));
@@ -2068,8 +2050,8 @@
          * immediately before its second flight. This may either be before
          * its second ClientHello or before its encrypted handshake flight.
          */
-        mbedtls_ssl_handshake_set_state(ssl,
-                                        MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO);
+        mbedtls_ssl_handshake_set_state(
+            ssl, MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO);
 #else
         mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_HELLO);
 #endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
@@ -2113,10 +2095,11 @@
     extensions_len = MBEDTLS_GET_UINT16_BE(p, 0);
     p += 2;
 
-    MBEDTLS_SSL_DEBUG_BUF(3, "encrypted extensions", p, extensions_len);
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, extensions_len);
     extensions_end = p + extensions_len;
 
+    MBEDTLS_SSL_DEBUG_BUF(3, "encrypted extensions", p, extensions_len);
+
     handshake->received_extensions = MBEDTLS_SSL_EXT_MASK_NONE;
 
     while (p < extensions_end) {
@@ -2148,7 +2131,8 @@
             case MBEDTLS_TLS_EXT_ALPN:
                 MBEDTLS_SSL_DEBUG_MSG(3, ("found alpn extension"));
 
-                if ((ret = ssl_tls13_parse_alpn_ext(ssl, p, (size_t) extension_data_len)) != 0) {
+                if ((ret = ssl_tls13_parse_alpn_ext(
+                         ssl, p, (size_t) extension_data_len)) != 0) {
                     return ret;
                 }
 
@@ -2168,6 +2152,21 @@
                 break;
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+            case MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT:
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found record_size_limit extension"));
+
+                ret = mbedtls_ssl_tls13_parse_record_size_limit_ext(
+                    ssl, p, p + extension_data_len);
+
+                /* TODO: Return unconditionally here until we handle the record
+                 * size limit correctly. Once handled correctly, only return in
+                 * case of errors. */
+                return ret;
+
+                break;
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
             default:
                 MBEDTLS_SSL_PRINT_EXT(
                     3, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
@@ -2201,9 +2200,9 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse encrypted extensions"));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(ssl,
-                                                               MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
-                                                               &buf, &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
+                             &buf, &buf_len));
 
     /* Process the message contents */
     MBEDTLS_SSL_PROC_CHK(
@@ -2216,9 +2215,9 @@
     }
 #endif
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
-                                                            buf, buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
+                             buf, buf_len));
 
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED)
     if (mbedtls_ssl_tls13_key_exchange_mode_with_psk(ssl)) {
@@ -2454,16 +2453,16 @@
         unsigned char *buf;
         size_t buf_len;
 
-        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(ssl,
-                                                                   MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
-                                                                   &buf, &buf_len));
+        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(
+                                 ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
+                                 &buf, &buf_len));
 
-        MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_certificate_request(ssl,
-                                                                 buf, buf + buf_len));
+        MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_certificate_request(
+                                 ssl, buf, buf + buf_len));
 
-        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                                MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
-                                                                buf, buf_len));
+        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                                 ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
+                                 buf, buf_len));
     } else if (ret == SSL_CERTIFICATE_REQUEST_SKIP) {
         ret = 0;
     } else {
@@ -2625,8 +2624,8 @@
 
     ret = mbedtls_ssl_tls13_compute_resumption_master_secret(ssl);
     if (ret != 0) {
-        MBEDTLS_SSL_DEBUG_RET(1,
-                              "mbedtls_ssl_tls13_compute_resumption_master_secret ", ret);
+        MBEDTLS_SSL_DEBUG_RET(
+            1, "mbedtls_ssl_tls13_compute_resumption_master_secret ", ret);
         return ret;
     }
 
@@ -3006,7 +3005,8 @@
         case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
             ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
             if (ret == 0) {
-                mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_CERTIFICATE);
+                mbedtls_ssl_handshake_set_state(
+                    ssl, MBEDTLS_SSL_CLIENT_CERTIFICATE);
             }
             break;
 
diff --git a/library/ssl_tls13_generic.c b/library/ssl_tls13_generic.c
index f607e36..a00785b 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -36,6 +36,13 @@
 #include "ssl_tls13_keys.h"
 #include "ssl_debug_helpers.h"
 
+#include "psa/crypto.h"
+#include "mbedtls/psa_util.h"
+
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+
 const uint8_t mbedtls_ssl_tls13_hello_retry_request_magic[
     MBEDTLS_SERVER_HELLO_RANDOM_LEN] =
 { 0xCF, 0x21, 0xAD, 0x74, 0xE5, 0x9A, 0x61, 0x11,
@@ -79,6 +86,61 @@
     return ret;
 }
 
+int mbedtls_ssl_tls13_is_supported_versions_ext_present_in_exts(
+    mbedtls_ssl_context *ssl,
+    const unsigned char *buf, const unsigned char *end,
+    const unsigned char **supported_versions_data,
+    const unsigned char **supported_versions_data_end)
+{
+    const unsigned char *p = buf;
+    size_t extensions_len;
+    const unsigned char *extensions_end;
+
+    *supported_versions_data = NULL;
+    *supported_versions_data_end = NULL;
+
+    /* Case of no extension */
+    if (p == end) {
+        return 0;
+    }
+
+    /* ...
+     * Extension extensions<x..2^16-1>;
+     * ...
+     * struct {
+     *      ExtensionType extension_type; (2 bytes)
+     *      opaque extension_data<0..2^16-1>;
+     * } Extension;
+     */
+    MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, 2);
+    extensions_len = MBEDTLS_GET_UINT16_BE(p, 0);
+    p += 2;
+
+    /* Check extensions do not go beyond the buffer of data. */
+    MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, extensions_len);
+    extensions_end = p + extensions_len;
+
+    while (p < extensions_end) {
+        unsigned int extension_type;
+        size_t extension_data_len;
+
+        MBEDTLS_SSL_CHK_BUF_READ_PTR(p, extensions_end, 4);
+        extension_type = MBEDTLS_GET_UINT16_BE(p, 0);
+        extension_data_len = MBEDTLS_GET_UINT16_BE(p, 2);
+        p += 4;
+        MBEDTLS_SSL_CHK_BUF_READ_PTR(p, extensions_end, extension_data_len);
+
+        if (extension_type == MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS) {
+            *supported_versions_data = p;
+            *supported_versions_data_end = p + extension_data_len;
+            return 1;
+        }
+        p += extension_data_len;
+    }
+
+    return 0;
+}
+
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED)
 /*
  * STATE HANDLING: Read CertificateVerify
@@ -185,15 +247,17 @@
 
     /* RFC 8446 section 4.4.3
      *
-     * If the CertificateVerify message is sent by a server, the signature algorithm
-     * MUST be one offered in the client's "signature_algorithms" extension unless
-     * no valid certificate chain can be produced without unsupported algorithms
+     * If the CertificateVerify message is sent by a server, the signature
+     * algorithm MUST be one offered in the client's "signature_algorithms"
+     * extension unless no valid certificate chain can be produced without
+     * unsupported algorithms
      *
      * RFC 8446 section 4.4.2.2
      *
      * If the client cannot construct an acceptable chain using the provided
-     * certificates and decides to abort the handshake, then it MUST abort the handshake
-     * with an appropriate certificate-related alert (by default, "unsupported_certificate").
+     * certificates and decides to abort the handshake, then it MUST abort the
+     * handshake with an appropriate certificate-related alert
+     * (by default, "unsupported_certificate").
      *
      * Check if algorithm is an offered signature algorithm.
      */
@@ -288,17 +352,18 @@
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse certificate verify"));
 
     MBEDTLS_SSL_PROC_CHK(
-        mbedtls_ssl_tls13_fetch_handshake_msg(ssl,
-                                              MBEDTLS_SSL_HS_CERTIFICATE_VERIFY, &buf, &buf_len));
+        mbedtls_ssl_tls13_fetch_handshake_msg(
+            ssl, MBEDTLS_SSL_HS_CERTIFICATE_VERIFY, &buf, &buf_len));
 
     /* Need to calculate the hash of the transcript first
      * before reading the message since otherwise it gets
      * included in the transcript
      */
-    ret = mbedtls_ssl_get_handshake_transcript(ssl,
-                                               ssl->handshake->ciphersuite_info->mac,
-                                               transcript, sizeof(transcript),
-                                               &transcript_len);
+    ret = mbedtls_ssl_get_handshake_transcript(
+        ssl,
+        ssl->handshake->ciphersuite_info->mac,
+        transcript, sizeof(transcript),
+        &transcript_len);
     if (ret != 0) {
         MBEDTLS_SSL_PEND_FATAL_ALERT(
             MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR,
@@ -318,13 +383,13 @@
                                       MBEDTLS_SSL_IS_CLIENT);
 
     /* Process the message contents */
-    MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_certificate_verify(ssl, buf,
-                                                            buf + buf_len, verify_buffer,
-                                                            verify_buffer_len));
+    MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_certificate_verify(
+                             ssl, buf, buf + buf_len,
+                             verify_buffer, verify_buffer_len));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_CERTIFICATE_VERIFY,
-                                                            buf, buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE_VERIFY,
+                             buf, buf_len));
 
 cleanup:
 
@@ -538,7 +603,8 @@
         return MBEDTLS_ERR_SSL_DECODE_ERROR;
     }
 
-    MBEDTLS_SSL_DEBUG_CRT(3, "peer certificate", ssl->session_negotiate->peer_cert);
+    MBEDTLS_SSL_DEBUG_CRT(3, "peer certificate",
+                          ssl->session_negotiate->peer_cert);
 
     return ret;
 }
@@ -604,8 +670,9 @@
             if (authmode == MBEDTLS_SSL_VERIFY_OPTIONAL) {
                 return 0;
             } else {
-                MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_NO_CERT,
-                                             MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE);
+                MBEDTLS_SSL_PEND_FATAL_ALERT(
+                    MBEDTLS_SSL_ALERT_MSG_NO_CERT,
+                    MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE);
                 return MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE;
             }
         }
@@ -692,7 +759,8 @@
            Pick one and send the corresponding alert. Which alert to send
            may be a subject of debate in some cases. */
         if (verify_result & MBEDTLS_X509_BADCERT_OTHER) {
-            MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED, ret);
+            MBEDTLS_SSL_PEND_FATAL_ALERT(
+                MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED, ret);
         } else if (verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH) {
             MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_BAD_CERT, ret);
         } else if (verify_result & (MBEDTLS_X509_BADCERT_KEY_USAGE |
@@ -700,15 +768,19 @@
                                     MBEDTLS_X509_BADCERT_NS_CERT_TYPE |
                                     MBEDTLS_X509_BADCERT_BAD_PK |
                                     MBEDTLS_X509_BADCERT_BAD_KEY)) {
-            MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT, ret);
+            MBEDTLS_SSL_PEND_FATAL_ALERT(
+                MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT, ret);
         } else if (verify_result & MBEDTLS_X509_BADCERT_EXPIRED) {
-            MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED, ret);
+            MBEDTLS_SSL_PEND_FATAL_ALERT(
+                MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED, ret);
         } else if (verify_result & MBEDTLS_X509_BADCERT_REVOKED) {
-            MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED, ret);
+            MBEDTLS_SSL_PEND_FATAL_ALERT(
+                MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED, ret);
         } else if (verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED) {
             MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA, ret);
         } else {
-            MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN, ret);
+            MBEDTLS_SSL_PEND_FATAL_ALERT(
+                MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN, ret);
         }
     }
 
@@ -753,9 +825,8 @@
     /* Validate the certificate chain and set the verification results. */
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_validate_certificate(ssl));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_CERTIFICATE, buf,
-                                                            buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE, buf, buf_len));
 
 cleanup:
 #endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED */
@@ -861,18 +932,16 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate"));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                         MBEDTLS_SSL_HS_CERTIFICATE, &buf,
-                                                         &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE, &buf, &buf_len));
 
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_certificate_body(ssl,
                                                           buf,
                                                           buf + buf_len,
                                                           &msg_len));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_CERTIFICATE, buf,
-                                                            msg_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE, buf, msg_len));
 
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(
                              ssl, buf_len, msg_len));
@@ -955,11 +1024,9 @@
         return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    ret = mbedtls_ssl_get_handshake_transcript(ssl,
-                                               ssl->handshake->ciphersuite_info->mac,
-                                               handshake_hash,
-                                               sizeof(handshake_hash),
-                                               &handshake_hash_len);
+    ret = mbedtls_ssl_get_handshake_transcript(
+        ssl, ssl->handshake->ciphersuite_info->mac,
+        handshake_hash, sizeof(handshake_hash), &handshake_hash_len);
     if (ret != 0) {
         return ret;
     }
@@ -1016,7 +1083,7 @@
                                   verify_hash, sizeof(verify_hash),
                                   &verify_hash_len);
         if (status != PSA_SUCCESS) {
-            return psa_ssl_status_to_mbedtls(status);
+            return PSA_TO_MBEDTLS_ERR(status);
         }
 
         MBEDTLS_SSL_DEBUG_BUF(3, "verify hash", verify_hash, verify_hash_len);
@@ -1066,16 +1133,16 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> write certificate verify"));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                         MBEDTLS_SSL_HS_CERTIFICATE_VERIFY, &buf,
-                                                         &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE_VERIFY,
+                             &buf, &buf_len));
 
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_certificate_verify_body(
                              ssl, buf, buf + buf_len, &msg_len));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_CERTIFICATE_VERIFY, buf,
-                                                            msg_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_CERTIFICATE_VERIFY,
+                             buf, msg_len));
 
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(
                              ssl, buf_len, msg_len));
@@ -1101,13 +1168,13 @@
 {
     int ret;
 
-    ret = mbedtls_ssl_tls13_calculate_verify_data(ssl,
-                                                  ssl->handshake->state_local.finished_in.digest,
-                                                  sizeof(ssl->handshake->state_local.finished_in.
-                                                         digest),
-                                                  &ssl->handshake->state_local.finished_in.digest_len,
-                                                  ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ?
-                                                  MBEDTLS_SSL_IS_SERVER : MBEDTLS_SSL_IS_CLIENT);
+    ret = mbedtls_ssl_tls13_calculate_verify_data(
+        ssl,
+        ssl->handshake->state_local.finished_in.digest,
+        sizeof(ssl->handshake->state_local.finished_in.digest),
+        &ssl->handshake->state_local.finished_in.digest_len,
+        ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ?
+        MBEDTLS_SSL_IS_SERVER : MBEDTLS_SSL_IS_CLIENT);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_calculate_verify_data", ret);
         return ret;
@@ -1166,17 +1233,17 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> parse finished message"));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(ssl,
-                                                               MBEDTLS_SSL_HS_FINISHED,
-                                                               &buf, &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_tls13_fetch_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_FINISHED, &buf, &buf_len));
 
     /* Preprocessing step: Compute handshake digest */
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_preprocess_finished_message(ssl));
 
-    MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_finished_message(ssl, buf, buf + buf_len));
+    MBEDTLS_SSL_PROC_CHK(ssl_tls13_parse_finished_message(
+                             ssl, buf, buf + buf_len));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(ssl,
-                                                            MBEDTLS_SSL_HS_FINISHED, buf, buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
+                             ssl, MBEDTLS_SSL_HS_FINISHED, buf, buf_len));
 
 cleanup:
 
@@ -1421,7 +1488,7 @@
     return ret;
 }
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
 
 int mbedtls_ssl_tls13_read_public_ecdhe_share(mbedtls_ssl_context *ssl,
                                               const unsigned char *buf,
@@ -1464,9 +1531,8 @@
     MBEDTLS_SSL_DEBUG_MSG(1, ("Perform PSA-based ECDH computation."));
 
     /* Convert EC's TLS ID to PSA key type. */
-    if (mbedtls_ssl_get_psa_curve_info_from_tls_id(named_group,
-                                                   &ec_psa_family,
-                                                   &ec_bits) == PSA_ERROR_NOT_SUPPORTED) {
+    if (mbedtls_ssl_get_psa_curve_info_from_tls_id(
+            named_group, &ec_psa_family, &ec_bits) == PSA_ERROR_NOT_SUPPORTED) {
         return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
     }
     handshake->ecdh_psa_type = PSA_KEY_TYPE_ECC_KEY_PAIR(ec_psa_family);
@@ -1482,7 +1548,7 @@
     status = psa_generate_key(&key_attributes,
                               &handshake->ecdh_psa_privkey);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         MBEDTLS_SSL_DEBUG_RET(1, "psa_generate_key", ret);
         return ret;
 
@@ -1493,7 +1559,7 @@
                                    buf, (size_t) (end - buf),
                                    &own_pubkey_len);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         MBEDTLS_SSL_DEBUG_RET(1, "psa_export_public_key", ret);
         return ret;
 
@@ -1503,7 +1569,7 @@
 
     return 0;
 }
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
 /* RFC 8446 section 4.2
  *
@@ -1560,4 +1626,61 @@
     return MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
 }
 
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+/* RFC 8449, section 4:
+ *
+ * The ExtensionData of the "record_size_limit" extension is
+ * RecordSizeLimit:
+ *     uint16 RecordSizeLimit;
+ */
+MBEDTLS_CHECK_RETURN_CRITICAL
+int mbedtls_ssl_tls13_parse_record_size_limit_ext(mbedtls_ssl_context *ssl,
+                                                  const unsigned char *buf,
+                                                  const unsigned char *end)
+{
+    const unsigned char *p = buf;
+    uint16_t record_size_limit;
+    const size_t extension_data_len = end - buf;
+
+    if (extension_data_len !=
+        MBEDTLS_SSL_RECORD_SIZE_LIMIT_EXTENSION_DATA_LENGTH) {
+        MBEDTLS_SSL_DEBUG_MSG(2,
+                              ("record_size_limit extension has invalid length: %"
+                               MBEDTLS_PRINTF_SIZET " Bytes",
+                               extension_data_len));
+
+        MBEDTLS_SSL_PEND_FATAL_ALERT(
+            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER,
+            MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
+    }
+
+    MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, 2);
+    record_size_limit = MBEDTLS_GET_UINT16_BE(p, 0);
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("RecordSizeLimit: %u Bytes", record_size_limit));
+
+    /* RFC 8449, section 4
+     *
+     * Endpoints MUST NOT send a "record_size_limit" extension with a value
+     * smaller than 64.  An endpoint MUST treat receipt of a smaller value
+     * as a fatal error and generate an "illegal_parameter" alert.
+     */
+    if (record_size_limit < MBEDTLS_SSL_RECORD_SIZE_LIMIT_MIN) {
+        MBEDTLS_SSL_PEND_FATAL_ALERT(
+            MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER,
+            MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
+    }
+
+    MBEDTLS_SSL_DEBUG_MSG(
+        2, ("record_size_limit extension is still in development. Aborting handshake."));
+
+    MBEDTLS_SSL_PEND_FATAL_ALERT(
+        MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT,
+        MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION);
+    return MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
+}
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
 #endif /* MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_PROTO_TLS1_3 */
diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c
index a95d2fd..46caa45 100644
--- a/library/ssl_tls13_keys.c
+++ b/library/ssl_tls13_keys.c
@@ -35,6 +35,10 @@
 
 #include "psa/crypto.h"
 
+#define PSA_TO_MBEDTLS_ERR(status) PSA_TO_MBEDTLS_ERR_LIST(status,   \
+                                                           psa_to_ssl_errors,             \
+                                                           psa_generic_status_to_mbedtls)
+
 #define MBEDTLS_SSL_TLS1_3_LABEL(name, string)       \
     .name = string,
 
@@ -215,7 +219,7 @@
     abort_status = psa_key_derivation_abort(&operation);
     status = (status == PSA_SUCCESS ? abort_status : status);
     mbedtls_platform_zeroize(hkdf_label, hkdf_label_len);
-    return psa_ssl_status_to_mbedtls(status);
+    return PSA_TO_MBEDTLS_ERR(status);
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
@@ -309,7 +313,7 @@
         status = psa_hash_compute(hash_alg, ctx, ctx_len, hashed_context,
                                   PSA_HASH_LENGTH(hash_alg), &ctx_len);
         if (status != PSA_SUCCESS) {
-            ret = psa_ssl_status_to_mbedtls(status);
+            ret = PSA_TO_MBEDTLS_ERR(status);
             return ret;
         }
     } else {
@@ -416,7 +420,7 @@
 cleanup:
     abort_status = psa_key_derivation_abort(&operation);
     status = (status == PSA_SUCCESS ? abort_status : status);
-    ret = (ret == 0 ? psa_ssl_status_to_mbedtls(status) : ret);
+    ret = (ret == 0 ? PSA_TO_MBEDTLS_ERR(status) : ret);
     mbedtls_platform_zeroize(tmp_secret, sizeof(tmp_secret));
     return ret;
 }
@@ -451,25 +455,27 @@
      */
 
     /* Create client_early_traffic_secret */
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          early_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_e_traffic),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->client_early_traffic_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        early_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_e_traffic),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->client_early_traffic_secret,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
 
     /* Create early exporter */
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          early_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(e_exp_master),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->early_exporter_master_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        early_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(e_exp_master),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->early_exporter_master_secret,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
@@ -511,13 +517,14 @@
      * Derive-Secret( ., "c hs traffic", ClientHello...ServerHello )
      */
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          handshake_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_hs_traffic),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->client_handshake_traffic_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        handshake_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_hs_traffic),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->client_handshake_traffic_secret,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
@@ -527,13 +534,14 @@
      * Derive-Secret( ., "s hs traffic", ClientHello...ServerHello )
      */
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          handshake_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(s_hs_traffic),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->server_handshake_traffic_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        handshake_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(s_hs_traffic),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->server_handshake_traffic_secret,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
@@ -574,35 +582,38 @@
      *
      */
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          application_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_ap_traffic),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->client_application_traffic_secret_N,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        application_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(c_ap_traffic),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->client_application_traffic_secret_N,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          application_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(s_ap_traffic),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->server_application_traffic_secret_N,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        application_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(s_ap_traffic),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->server_application_traffic_secret_N,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          application_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(exp_master),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->exporter_master_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        application_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(exp_master),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->exporter_master_secret,
+        hash_len);
     if (ret != 0) {
         return ret;
     }
@@ -629,13 +640,14 @@
         return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
     }
 
-    ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                          application_secret, hash_len,
-                                          MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(res_master),
-                                          transcript, transcript_len,
-                                          MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
-                                          derived->resumption_master_secret,
-                                          hash_len);
+    ret = mbedtls_ssl_tls13_derive_secret(
+        hash_alg,
+        application_secret, hash_len,
+        MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(res_master),
+        transcript, transcript_len,
+        MBEDTLS_SSL_TLS1_3_CONTEXT_HASHED,
+        derived->resumption_master_secret,
+        hash_len);
 
     if (ret != 0) {
         return ret;
@@ -671,17 +683,19 @@
     /*
      * Compute MasterSecret
      */
-    ret = mbedtls_ssl_tls13_evolve_secret(hash_alg,
-                                          handshake->tls13_master_secrets.handshake,
-                                          NULL, 0,
-                                          handshake->tls13_master_secrets.app);
+    ret = mbedtls_ssl_tls13_evolve_secret(
+        hash_alg,
+        handshake->tls13_master_secrets.handshake,
+        NULL, 0,
+        handshake->tls13_master_secrets.app);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_evolve_secret", ret);
         return ret;
     }
 
-    MBEDTLS_SSL_DEBUG_BUF(4, "Master secret",
-                          handshake->tls13_master_secrets.app, PSA_HASH_LENGTH(hash_alg));
+    MBEDTLS_SSL_DEBUG_BUF(
+        4, "Master secret",
+        handshake->tls13_master_secrets.app, PSA_HASH_LENGTH(hash_alg));
 
     return 0;
 }
@@ -740,19 +754,19 @@
 
     status = psa_import_key(&attributes, finished_key, hash_len, &key);
     if (status != PSA_SUCCESS) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
         goto exit;
     }
 
     status = psa_mac_compute(key, alg, transcript, hash_len,
                              dst, hash_len, dst_len);
-    ret = psa_ssl_status_to_mbedtls(status);
+    ret = PSA_TO_MBEDTLS_ERR(status);
 
 exit:
 
     status = psa_destroy_key(key);
     if (ret == 0) {
-        ret = psa_ssl_status_to_mbedtls(status);
+        ret = PSA_TO_MBEDTLS_ERR(status);
     }
 
     mbedtls_platform_zeroize(finished_key, sizeof(finished_key));
@@ -806,7 +820,8 @@
     }
     MBEDTLS_SSL_DEBUG_BUF(4, "handshake hash", transcript, transcript_len);
 
-    ret = ssl_tls13_calc_finished_core(hash_alg, base_key, transcript, dst, actual_len);
+    ret = ssl_tls13_calc_finished_core(hash_alg, base_key,
+                                       transcript, dst, actual_len);
     if (ret != 0) {
         goto exit;
     }
@@ -869,18 +884,20 @@
                           early_secret, hash_len);
 
     if (psk_type == MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION) {
-        ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                              early_secret, hash_len,
-                                              MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(res_binder),
-                                              NULL, 0, MBEDTLS_SSL_TLS1_3_CONTEXT_UNHASHED,
-                                              binder_key, hash_len);
+        ret = mbedtls_ssl_tls13_derive_secret(
+            hash_alg,
+            early_secret, hash_len,
+            MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(res_binder),
+            NULL, 0, MBEDTLS_SSL_TLS1_3_CONTEXT_UNHASHED,
+            binder_key, hash_len);
         MBEDTLS_SSL_DEBUG_MSG(4, ("Derive Early Secret with 'res binder'"));
     } else {
-        ret = mbedtls_ssl_tls13_derive_secret(hash_alg,
-                                              early_secret, hash_len,
-                                              MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(ext_binder),
-                                              NULL, 0, MBEDTLS_SSL_TLS1_3_CONTEXT_UNHASHED,
-                                              binder_key, hash_len);
+        ret = mbedtls_ssl_tls13_derive_secret(
+            hash_alg,
+            early_secret, hash_len,
+            MBEDTLS_SSL_TLS1_3_LBL_WITH_LEN(ext_binder),
+            NULL, 0, MBEDTLS_SSL_TLS1_3_CONTEXT_UNHASHED,
+            binder_key, hash_len);
         MBEDTLS_SSL_DEBUG_MSG(4, ("Derive Early Secret with 'ext binder'"));
     }
 
@@ -909,11 +926,11 @@
     return ret;
 }
 
-int mbedtls_ssl_tls13_populate_transform(mbedtls_ssl_transform *transform,
-                                         int endpoint,
-                                         int ciphersuite,
-                                         mbedtls_ssl_key_set const *traffic_keys,
-                                         mbedtls_ssl_context *ssl /* DEBUG ONLY */)
+int mbedtls_ssl_tls13_populate_transform(
+    mbedtls_ssl_transform *transform,
+    int endpoint, int ciphersuite,
+    mbedtls_ssl_key_set const *traffic_keys,
+    mbedtls_ssl_context *ssl /* DEBUG ONLY */)
 {
 #if !defined(MBEDTLS_USE_PSA_CRYPTO)
     int ret;
@@ -1040,8 +1057,9 @@
                                             &alg,
                                             &key_type,
                                             &key_bits)) != PSA_SUCCESS) {
-        MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_cipher_to_psa", psa_ssl_status_to_mbedtls(status));
-        return psa_ssl_status_to_mbedtls(status);
+        MBEDTLS_SSL_DEBUG_RET(
+            1, "mbedtls_ssl_cipher_to_psa", PSA_TO_MBEDTLS_ERR(status));
+        return PSA_TO_MBEDTLS_ERR(status);
     }
 
     transform->psa_alg = alg;
@@ -1055,8 +1073,9 @@
                                      key_enc,
                                      PSA_BITS_TO_BYTES(key_bits),
                                      &transform->psa_key_enc)) != PSA_SUCCESS) {
-            MBEDTLS_SSL_DEBUG_RET(1, "psa_import_key", psa_ssl_status_to_mbedtls(status));
-            return psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(
+                1, "psa_import_key", PSA_TO_MBEDTLS_ERR(status));
+            return PSA_TO_MBEDTLS_ERR(status);
         }
 
         psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DECRYPT);
@@ -1065,8 +1084,9 @@
                                      key_dec,
                                      PSA_BITS_TO_BYTES(key_bits),
                                      &transform->psa_key_dec)) != PSA_SUCCESS) {
-            MBEDTLS_SSL_DEBUG_RET(1, "psa_import_key", psa_ssl_status_to_mbedtls(status));
-            return psa_ssl_status_to_mbedtls(status);
+            MBEDTLS_SSL_DEBUG_RET(
+                1, "psa_import_key", PSA_TO_MBEDTLS_ERR(status));
+            return PSA_TO_MBEDTLS_ERR(status);
         }
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
@@ -1094,7 +1114,7 @@
     status = mbedtls_ssl_cipher_to_psa(ciphersuite_info->cipher, taglen,
                                        &alg, &key_type, &key_bits);
     if (status != PSA_SUCCESS) {
-        return psa_ssl_status_to_mbedtls(status);
+        return PSA_TO_MBEDTLS_ERR(status);
     }
 
     *key_len = PSA_BITS_TO_BYTES(key_bits);
@@ -1130,7 +1150,8 @@
     mbedtls_ssl_tls13_early_secrets tls13_early_secrets;
 
     mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info = handshake->ciphersuite_info;
+    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
+        handshake->ciphersuite_info;
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_tls13_generate_early_key"));
 
@@ -1329,8 +1350,10 @@
     size_t iv_len;
 
     mbedtls_ssl_handshake_params *handshake = ssl->handshake;
-    const mbedtls_ssl_ciphersuite_t *ciphersuite_info = handshake->ciphersuite_info;
-    mbedtls_ssl_tls13_handshake_secrets *tls13_hs_secrets = &handshake->tls13_hs_secrets;
+    const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
+        handshake->ciphersuite_info;
+    mbedtls_ssl_tls13_handshake_secrets *tls13_hs_secrets =
+        &handshake->tls13_hs_secrets;
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> ssl_tls13_generate_handshake_keys"));
 
@@ -1356,9 +1379,9 @@
         return ret;
     }
 
-    ret = mbedtls_ssl_tls13_derive_handshake_secrets(hash_alg,
-                                                     handshake->tls13_master_secrets.handshake,
-                                                     transcript, transcript_len, tls13_hs_secrets);
+    ret = mbedtls_ssl_tls13_derive_handshake_secrets(
+        hash_alg, handshake->tls13_master_secrets.handshake,
+        transcript, transcript_len, tls13_hs_secrets);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_derive_handshake_secrets",
                               ret);
@@ -1376,27 +1399,30 @@
      * Export client handshake traffic secret
      */
     if (ssl->f_export_keys != NULL) {
-        ssl->f_export_keys(ssl->p_export_keys,
-                           MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_HANDSHAKE_TRAFFIC_SECRET,
-                           tls13_hs_secrets->client_handshake_traffic_secret,
-                           hash_len,
-                           handshake->randbytes,
-                           handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
-                           MBEDTLS_SSL_TLS_PRF_NONE /* TODO: FIX! */);
+        ssl->f_export_keys(
+            ssl->p_export_keys,
+            MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_HANDSHAKE_TRAFFIC_SECRET,
+            tls13_hs_secrets->client_handshake_traffic_secret,
+            hash_len,
+            handshake->randbytes,
+            handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
+            MBEDTLS_SSL_TLS_PRF_NONE /* TODO: FIX! */);
 
-        ssl->f_export_keys(ssl->p_export_keys,
-                           MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_HANDSHAKE_TRAFFIC_SECRET,
-                           tls13_hs_secrets->server_handshake_traffic_secret,
-                           hash_len,
-                           handshake->randbytes,
-                           handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
-                           MBEDTLS_SSL_TLS_PRF_NONE /* TODO: FIX! */);
+        ssl->f_export_keys(
+            ssl->p_export_keys,
+            MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_HANDSHAKE_TRAFFIC_SECRET,
+            tls13_hs_secrets->server_handshake_traffic_secret,
+            hash_len,
+            handshake->randbytes,
+            handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
+            MBEDTLS_SSL_TLS_PRF_NONE /* TODO: FIX! */);
     }
 
-    ret = mbedtls_ssl_tls13_make_traffic_keys(hash_alg,
-                                              tls13_hs_secrets->client_handshake_traffic_secret,
-                                              tls13_hs_secrets->server_handshake_traffic_secret,
-                                              hash_len, key_len, iv_len, traffic_keys);
+    ret = mbedtls_ssl_tls13_make_traffic_keys(
+        hash_alg,
+        tls13_hs_secrets->client_handshake_traffic_secret,
+        tls13_hs_secrets->server_handshake_traffic_secret,
+        hash_len, key_len, iv_len, traffic_keys);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_make_traffic_keys", ret);
         goto exit;
@@ -1459,7 +1485,7 @@
      */
     if (mbedtls_ssl_tls13_key_exchange_mode_with_ephemeral(ssl)) {
         if (mbedtls_ssl_tls13_named_group_is_ecdhe(handshake->offered_group_id)) {
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
             /* Compute ECDH shared secret. */
             psa_status_t status = PSA_ERROR_GENERIC_ERROR;
             psa_key_attributes_t key_attributes = PSA_KEY_ATTRIBUTES_INIT;
@@ -1467,7 +1493,7 @@
             status = psa_get_key_attributes(handshake->ecdh_psa_privkey,
                                             &key_attributes);
             if (status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
             }
 
             shared_secret_len = PSA_BITS_TO_BYTES(
@@ -1482,20 +1508,20 @@
                 handshake->ecdh_psa_peerkey, handshake->ecdh_psa_peerkey_len,
                 shared_secret, shared_secret_len, &shared_secret_len);
             if (status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
                 MBEDTLS_SSL_DEBUG_RET(1, "psa_raw_key_agreement", ret);
                 goto cleanup;
             }
 
             status = psa_destroy_key(handshake->ecdh_psa_privkey);
             if (status != PSA_SUCCESS) {
-                ret = psa_ssl_status_to_mbedtls(status);
+                ret = PSA_TO_MBEDTLS_ERR(status);
                 MBEDTLS_SSL_DEBUG_RET(1, "psa_destroy_key", ret);
                 goto cleanup;
             }
 
             handshake->ecdh_psa_privkey = MBEDTLS_SVC_KEY_ID_INIT;
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
         } else {
             MBEDTLS_SSL_DEBUG_MSG(1, ("Group not supported."));
             return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@@ -1506,10 +1532,10 @@
     /*
      * Compute the Handshake Secret
      */
-    ret = mbedtls_ssl_tls13_evolve_secret(hash_alg,
-                                          handshake->tls13_master_secrets.early,
-                                          shared_secret, shared_secret_len,
-                                          handshake->tls13_master_secrets.handshake);
+    ret = mbedtls_ssl_tls13_evolve_secret(
+        hash_alg, handshake->tls13_master_secrets.early,
+        shared_secret, shared_secret_len,
+        handshake->tls13_master_secrets.handshake);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_evolve_secret", ret);
         goto cleanup;
@@ -1597,22 +1623,22 @@
 
     /* Compute application secrets from master secret and transcript hash. */
 
-    ret = mbedtls_ssl_tls13_derive_application_secrets(hash_alg,
-                                                       handshake->tls13_master_secrets.app,
-                                                       transcript, transcript_len,
-                                                       app_secrets);
+    ret = mbedtls_ssl_tls13_derive_application_secrets(
+        hash_alg, handshake->tls13_master_secrets.app,
+        transcript, transcript_len, app_secrets);
     if (ret != 0) {
-        MBEDTLS_SSL_DEBUG_RET(1,
-                              "mbedtls_ssl_tls13_derive_application_secrets", ret);
+        MBEDTLS_SSL_DEBUG_RET(
+            1, "mbedtls_ssl_tls13_derive_application_secrets", ret);
         goto cleanup;
     }
 
     /* Derive first epoch of IV + Key for application traffic. */
 
-    ret = mbedtls_ssl_tls13_make_traffic_keys(hash_alg,
-                                              app_secrets->client_application_traffic_secret_N,
-                                              app_secrets->server_application_traffic_secret_N,
-                                              hash_len, key_len, iv_len, traffic_keys);
+    ret = mbedtls_ssl_tls13_make_traffic_keys(
+        hash_alg,
+        app_secrets->client_application_traffic_secret_N,
+        app_secrets->server_application_traffic_secret_N,
+        hash_len, key_len, iv_len, traffic_keys);
     if (ret != 0) {
         MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_tls13_make_traffic_keys", ret);
         goto cleanup;
@@ -1630,21 +1656,23 @@
      * Export client/server application traffic secret 0
      */
     if (ssl->f_export_keys != NULL) {
-        ssl->f_export_keys(ssl->p_export_keys,
-                           MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_APPLICATION_TRAFFIC_SECRET,
-                           app_secrets->client_application_traffic_secret_N, hash_len,
-                           handshake->randbytes,
-                           handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
-                           MBEDTLS_SSL_TLS_PRF_NONE /* TODO: this should be replaced by
-                                                       a new constant for TLS 1.3! */);
+        ssl->f_export_keys(
+            ssl->p_export_keys,
+            MBEDTLS_SSL_KEY_EXPORT_TLS1_3_CLIENT_APPLICATION_TRAFFIC_SECRET,
+            app_secrets->client_application_traffic_secret_N, hash_len,
+            handshake->randbytes,
+            handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
+            MBEDTLS_SSL_TLS_PRF_NONE /* TODO: this should be replaced by
+                                        a new constant for TLS 1.3! */);
 
-        ssl->f_export_keys(ssl->p_export_keys,
-                           MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_APPLICATION_TRAFFIC_SECRET,
-                           app_secrets->server_application_traffic_secret_N, hash_len,
-                           handshake->randbytes,
-                           handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
-                           MBEDTLS_SSL_TLS_PRF_NONE /* TODO: this should be replaced by
-                                                       a new constant for TLS 1.3! */);
+        ssl->f_export_keys(
+            ssl->p_export_keys,
+            MBEDTLS_SSL_KEY_EXPORT_TLS1_3_SERVER_APPLICATION_TRAFFIC_SECRET,
+            app_secrets->server_application_traffic_secret_N, hash_len,
+            handshake->randbytes,
+            handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN,
+            MBEDTLS_SSL_TLS_PRF_NONE /* TODO: this should be replaced by
+                                        a new constant for TLS 1.3! */);
     }
 
     MBEDTLS_SSL_DEBUG_BUF(4, "client application_write_key:",
@@ -1725,8 +1753,8 @@
     unsigned char transcript[MBEDTLS_TLS1_3_MD_MAX_SIZE];
     size_t transcript_len;
 
-    MBEDTLS_SSL_DEBUG_MSG(2,
-                          ("=> mbedtls_ssl_tls13_compute_resumption_master_secret"));
+    MBEDTLS_SSL_DEBUG_MSG(
+        2, ("=> mbedtls_ssl_tls13_compute_resumption_master_secret"));
 
     md_type = handshake->ciphersuite_info->mac;
 
@@ -1750,12 +1778,13 @@
     mbedtls_platform_zeroize(&handshake->tls13_master_secrets,
                              sizeof(handshake->tls13_master_secrets));
 
-    MBEDTLS_SSL_DEBUG_BUF(4, "Resumption master secret",
-                          ssl->session_negotiate->app_secrets.resumption_master_secret,
-                          PSA_HASH_LENGTH(mbedtls_psa_translate_md(md_type)));
+    MBEDTLS_SSL_DEBUG_BUF(
+        4, "Resumption master secret",
+        ssl->session_negotiate->app_secrets.resumption_master_secret,
+        PSA_HASH_LENGTH(mbedtls_psa_translate_md(md_type)));
 
-    MBEDTLS_SSL_DEBUG_MSG(2,
-                          ("<= mbedtls_ssl_tls13_compute_resumption_master_secret"));
+    MBEDTLS_SSL_DEBUG_MSG(
+        2, ("<= mbedtls_ssl_tls13_compute_resumption_master_secret"));
     return 0;
 }
 
@@ -1826,7 +1855,7 @@
 
     status = psa_get_key_attributes(ssl->handshake->psk_opaque, &key_attributes);
     if (status != PSA_SUCCESS) {
-        return psa_ssl_status_to_mbedtls(status);
+        return PSA_TO_MBEDTLS_ERR(status);
     }
 
     *psk_len = PSA_BITS_TO_BYTES(psa_get_key_bits(&key_attributes));
@@ -1840,7 +1869,7 @@
     if (status != PSA_SUCCESS) {
         mbedtls_free((void *) *psk);
         *psk = NULL;
-        return psa_ssl_status_to_mbedtls(status);
+        return PSA_TO_MBEDTLS_ERR(status);
     }
     return 0;
 #else
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 6b1c4c5..33121af 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -258,6 +258,8 @@
     int *psk_type,
     mbedtls_ssl_session *session)
 {
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
     ((void) session);
     ((void) obfuscated_ticket_age);
     *psk_type = MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL;
@@ -271,9 +273,13 @@
             session) == SSL_TLS1_3_OFFERED_PSK_MATCH) {
         ssl->handshake->resume = 1;
         *psk_type = MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION;
-        mbedtls_ssl_set_hs_psk(ssl,
-                               session->resumption_key,
-                               session->resumption_key_len);
+        ret = mbedtls_ssl_set_hs_psk(ssl,
+                                     session->resumption_key,
+                                     session->resumption_key_len);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_set_hs_psk", ret);
+            return ret;
+        }
 
         MBEDTLS_SSL_DEBUG_BUF(4, "Ticket-resumed PSK:",
                               session->resumption_key,
@@ -299,7 +305,11 @@
         identity_len == ssl->conf->psk_identity_len &&
         mbedtls_ct_memcmp(ssl->conf->psk_identity,
                           identity, identity_len) == 0) {
-        mbedtls_ssl_set_hs_psk(ssl, ssl->conf->psk, ssl->conf->psk_len);
+        ret = mbedtls_ssl_set_hs_psk(ssl, ssl->conf->psk, ssl->conf->psk_len);
+        if (ret != 0) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_set_hs_psk", ret);
+            return ret;
+        }
         return SSL_TLS1_3_OFFERED_PSK_MATCH;
     }
 
@@ -307,11 +317,10 @@
 }
 
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_offered_psks_check_binder_match(mbedtls_ssl_context *ssl,
-                                                     const unsigned char *binder,
-                                                     size_t binder_len,
-                                                     int psk_type,
-                                                     psa_algorithm_t psk_hash_alg)
+static int ssl_tls13_offered_psks_check_binder_match(
+    mbedtls_ssl_context *ssl,
+    const unsigned char *binder, size_t binder_len,
+    int psk_type, psa_algorithm_t psk_hash_alg)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
@@ -480,11 +489,12 @@
  *    } PreSharedKeyExtension;
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_parse_pre_shared_key_ext(mbedtls_ssl_context *ssl,
-                                              const unsigned char *pre_shared_key_ext,
-                                              const unsigned char *pre_shared_key_ext_end,
-                                              const unsigned char *ciphersuites,
-                                              const unsigned char *ciphersuites_end)
+static int ssl_tls13_parse_pre_shared_key_ext(
+    mbedtls_ssl_context *ssl,
+    const unsigned char *pre_shared_key_ext,
+    const unsigned char *pre_shared_key_ext_end,
+    const unsigned char *ciphersuites,
+    const unsigned char *ciphersuites_end)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const unsigned char *identities = pre_shared_key_ext;
@@ -611,8 +621,8 @@
             mbedtls_ssl_session_free(&session);
 #endif
             MBEDTLS_SSL_DEBUG_MSG(3, ("Invalid binder."));
-            MBEDTLS_SSL_DEBUG_RET(1,
-                                  "ssl_tls13_offered_psks_check_binder_match", ret);
+            MBEDTLS_SSL_DEBUG_RET(
+                1, "ssl_tls13_offered_psks_check_binder_match", ret);
             MBEDTLS_SSL_PEND_FATAL_ALERT(
                 MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR,
                 MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
@@ -646,9 +656,8 @@
     }
 
     /* Update the handshake transcript with the binder list. */
-    ret = ssl->handshake->update_checksum(ssl,
-                                          identities_end,
-                                          (size_t) (binders_end - identities_end));
+    ret = ssl->handshake->update_checksum(
+        ssl, identities_end, (size_t) (binders_end - identities_end));
     if (0 != ret) {
         MBEDTLS_SSL_DEBUG_RET(1, ("update_checksum"), ret);
         return ret;
@@ -728,7 +737,7 @@
     size_t versions_len;
     const unsigned char *versions_end;
     uint16_t tls_version;
-    int tls13_supported = 0;
+    int found_supported_version = 0;
 
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, 1);
     versions_len = p[0];
@@ -741,28 +750,33 @@
         tls_version = mbedtls_ssl_read_version(p, ssl->conf->transport);
         p += 2;
 
-        /* In this implementation we only support TLS 1.3 and DTLS 1.3. */
-        if (tls_version == MBEDTLS_SSL_VERSION_TLS1_3) {
-            tls13_supported = 1;
+        if (MBEDTLS_SSL_VERSION_TLS1_3 == tls_version) {
+            found_supported_version = 1;
+            break;
+        }
+
+        if ((MBEDTLS_SSL_VERSION_TLS1_2 == tls_version) &&
+            mbedtls_ssl_conf_is_tls12_enabled(ssl->conf)) {
+            found_supported_version = 1;
             break;
         }
     }
 
-    if (!tls13_supported) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("TLS 1.3 is not supported by the client"));
+    if (!found_supported_version) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("No supported version found."));
 
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION,
                                      MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION);
         return MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION;
     }
 
-    MBEDTLS_SSL_DEBUG_MSG(1, ("Negotiated version. Supported is [%04x]",
+    MBEDTLS_SSL_DEBUG_MSG(1, ("Negotiated version: [%04x]",
                               (unsigned int) tls_version));
 
-    return 0;
+    return (int) tls_version;
 }
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
 /*
  *
  * From RFC 8446:
@@ -818,20 +832,21 @@
     return 0;
 
 }
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
 #define SSL_TLS1_3_PARSE_KEY_SHARES_EXT_NO_MATCH 1
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
 /*
  *  ssl_tls13_parse_key_shares_ext() verifies whether the information in the
- *  extension is correct and stores the first acceptable key share and its associated group.
+ *  extension is correct and stores the first acceptable key share and its
+ *  associated group.
  *
  *  Possible return values are:
  *  - 0: Successful processing of the client provided key share extension.
- *  - SSL_TLS1_3_PARSE_KEY_SHARES_EXT_NO_MATCH: The key shares provided by the client
- *    does not match a group supported by the server. A HelloRetryRequest will
- *    be needed.
+ *  - SSL_TLS1_3_PARSE_KEY_SHARES_EXT_NO_MATCH: The key shares provided by
+ *    the client does not match a group supported by the server. A
+ *    HelloRetryRequest will be needed.
  *  - A negative value for fatal errors.
  */
 MBEDTLS_CHECK_RETURN_CRITICAL
@@ -923,7 +938,7 @@
     }
     return 0;
 }
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_tls13_client_hello_has_exts(mbedtls_ssl_context *ssl,
@@ -1027,7 +1042,8 @@
      *  3 ) Plain PSK Mode ( psk )
      */
 
-    ssl->handshake->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE;
+    ssl->handshake->key_exchange_mode =
+        MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE;
 
     if (ssl_tls13_check_psk_ephemeral_key_exchange(ssl)) {
         ssl->handshake->key_exchange_mode =
@@ -1223,6 +1239,7 @@
 
 #define SSL_CLIENT_HELLO_OK           0
 #define SSL_CLIENT_HELLO_HRR_REQUIRED 1
+#define SSL_CLIENT_HELLO_TLS1_2       2
 
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_tls13_parse_client_hello(mbedtls_ssl_context *ssl,
@@ -1231,16 +1248,20 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const unsigned char *p = buf;
+    const unsigned char *random;
     size_t legacy_session_id_len;
+    const unsigned char *legacy_session_id;
     size_t cipher_suites_len;
+    const unsigned char *cipher_suites;
     const unsigned char *cipher_suites_end;
     size_t extensions_len;
     const unsigned char *extensions_end;
+    const unsigned char *supported_versions_data;
+    const unsigned char *supported_versions_data_end;
     mbedtls_ssl_handshake_params *handshake = ssl->handshake;
     int hrr_required = 0;
 
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
-    const unsigned char *cipher_suites;
     const unsigned char *pre_shared_key_ext = NULL;
     const unsigned char *pre_shared_key_ext_end = NULL;
 #endif
@@ -1281,55 +1302,47 @@
     }
     p += 2;
 
-    /*
-     * Only support TLS 1.3 currently, temporarily set the version.
-     */
-    ssl->tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
-
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    /* Store minor version for later use with ticket serialization. */
-    ssl->session_negotiate->tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
-    ssl->session_negotiate->endpoint = ssl->conf->endpoint;
-#endif
-
     /* ...
      * Random random;
      * ...
      * with Random defined as:
      * opaque Random[32];
      */
-    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, random bytes",
-                          p, MBEDTLS_CLIENT_HELLO_RANDOM_LEN);
-
-    memcpy(&handshake->randbytes[0], p, MBEDTLS_CLIENT_HELLO_RANDOM_LEN);
+    random = p;
     p += MBEDTLS_CLIENT_HELLO_RANDOM_LEN;
 
     /* ...
      * opaque legacy_session_id<0..32>;
      * ...
      */
-    legacy_session_id_len = p[0];
-    p++;
+    legacy_session_id_len = *(p++);
+    legacy_session_id = p;
 
-    if (legacy_session_id_len > sizeof(ssl->session_negotiate->id)) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
-        return MBEDTLS_ERR_SSL_DECODE_ERROR;
-    }
-
-    ssl->session_negotiate->id_len = legacy_session_id_len;
-    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, session id",
-                          p, legacy_session_id_len);
     /*
      * Check we have enough data for the legacy session identifier
      * and the ciphersuite list length.
      */
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, legacy_session_id_len + 2);
-
-    memcpy(&ssl->session_negotiate->id[0], p, legacy_session_id_len);
     p += legacy_session_id_len;
 
+    /* ...
+     * CipherSuite cipher_suites<2..2^16-2>;
+     * ...
+     * with CipherSuite defined as:
+     * uint8 CipherSuite[2];
+     */
     cipher_suites_len = MBEDTLS_GET_UINT16_BE(p, 0);
     p += 2;
+    cipher_suites = p;
+
+    /*
+     * The length of the ciphersuite list has to be even.
+     */
+    if (cipher_suites_len & 1) {
+        MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR,
+                                     MBEDTLS_ERR_SSL_DECODE_ERROR);
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
+    }
 
     /* Check we have enough data for the ciphersuite list, the legacy
      * compression methods and the length of the extensions.
@@ -1339,30 +1352,95 @@
      * extensions_len                               2 bytes
      */
     MBEDTLS_SSL_CHK_BUF_READ_PTR(p, end, cipher_suites_len + 2 + 2);
+    p += cipher_suites_len;
+    cipher_suites_end = p;
 
-    /* ...
-     * CipherSuite cipher_suites<2..2^16-2>;
-     * ...
-     * with CipherSuite defined as:
-     * uint8 CipherSuite[2];
+    /*
+     * Search for the supported versions extension and parse it to determine
+     * if the client supports TLS 1.3.
      */
-#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
-    cipher_suites = p;
+    ret = mbedtls_ssl_tls13_is_supported_versions_ext_present_in_exts(
+        ssl, p + 2, end,
+        &supported_versions_data, &supported_versions_data_end);
+    if (ret < 0) {
+        MBEDTLS_SSL_DEBUG_RET(1,
+                              ("mbedtls_ssl_tls13_is_supported_versions_ext_present_in_exts"), ret);
+        return ret;
+    }
+
+    if (ret == 0) {
+        return SSL_CLIENT_HELLO_TLS1_2;
+    }
+
+    if (ret == 1) {
+        ret = ssl_tls13_parse_supported_versions_ext(ssl,
+                                                     supported_versions_data,
+                                                     supported_versions_data_end);
+        if (ret < 0) {
+            MBEDTLS_SSL_DEBUG_RET(1,
+                                  ("ssl_tls13_parse_supported_versions_ext"), ret);
+            return ret;
+        }
+
+        /*
+         * The supported versions extension was parsed successfully as the
+         * value returned by ssl_tls13_parse_supported_versions_ext() is
+         * positive. The return value is then equal to
+         * MBEDTLS_SSL_VERSION_TLS1_2 or MBEDTLS_SSL_VERSION_TLS1_3, defining
+         * the TLS version to negotiate.
+         */
+        if (MBEDTLS_SSL_VERSION_TLS1_2 == ret) {
+            return SSL_CLIENT_HELLO_TLS1_2;
+        }
+    }
+
+    /*
+     * We negotiate TLS 1.3.
+     */
+    ssl->tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
+
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+    /* Store minor version for later use with ticket serialization. */
+    ssl->session_negotiate->tls_version = MBEDTLS_SSL_VERSION_TLS1_3;
+    ssl->session_negotiate->endpoint = ssl->conf->endpoint;
 #endif
-    cipher_suites_end = p + cipher_suites_len;
-    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, ciphersuitelist",
-                          p, cipher_suites_len);
+
+    /*
+     * We are negotiating the version 1.3 of the protocol. Do what we have
+     * postponed: copy of the client random bytes, copy of the legacy session
+     * identifier and selection of the TLS 1.3 cipher suite.
+     */
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, random bytes",
+                          random, MBEDTLS_CLIENT_HELLO_RANDOM_LEN);
+    memcpy(&handshake->randbytes[0], random, MBEDTLS_CLIENT_HELLO_RANDOM_LEN);
+
+    if (legacy_session_id_len > sizeof(ssl->session_negotiate->id)) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("bad client hello message"));
+        return MBEDTLS_ERR_SSL_DECODE_ERROR;
+    }
+    ssl->session_negotiate->id_len = legacy_session_id_len;
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, session id",
+                          legacy_session_id, legacy_session_id_len);
+    memcpy(&ssl->session_negotiate->id[0],
+           legacy_session_id, legacy_session_id_len);
 
     /*
      * Search for a matching ciphersuite
      */
-    for (; p < cipher_suites_end; p += 2) {
+    MBEDTLS_SSL_DEBUG_BUF(3, "client hello, list of cipher suites",
+                          cipher_suites, cipher_suites_len);
+    for (const unsigned char *cipher_suites_p = cipher_suites;
+         cipher_suites_p < cipher_suites_end; cipher_suites_p += 2) {
         uint16_t cipher_suite;
         const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
 
-        MBEDTLS_SSL_CHK_BUF_READ_PTR(p, cipher_suites_end, 2);
-
-        cipher_suite = MBEDTLS_GET_UINT16_BE(p, 0);
+        /*
+         * "cipher_suites_end - cipher_suites_p is even" is an invariant of the
+         * loop. As cipher_suites_end - cipher_suites_p > 0, we have
+         * cipher_suites_end - cipher_suites_p >= 2 and it is thus safe to read
+         * two bytes.
+         */
+        cipher_suite = MBEDTLS_GET_UINT16_BE(cipher_suites_p, 0);
         ciphersuite_info = ssl_tls13_validate_peer_ciphersuite(
             ssl, cipher_suite);
         if (ciphersuite_info == NULL) {
@@ -1374,6 +1452,7 @@
         MBEDTLS_SSL_DEBUG_MSG(2, ("selected ciphersuite: %04x - %s",
                                   cipher_suite,
                                   ciphersuite_info->name));
+        break;
     }
 
     if (handshake->ciphersuite_info == NULL) {
@@ -1409,7 +1488,6 @@
     extensions_end = p + extensions_len;
 
     MBEDTLS_SSL_DEBUG_BUF(3, "client hello extensions", p, extensions_len);
-
     handshake->received_extensions = MBEDTLS_SSL_EXT_MASK_NONE;
 
     while (p < extensions_end) {
@@ -1462,7 +1540,7 @@
                 break;
 #endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
             case MBEDTLS_TLS_EXT_SUPPORTED_GROUPS:
                 MBEDTLS_SSL_DEBUG_MSG(3, ("found supported group extension"));
 
@@ -1475,15 +1553,15 @@
                 ret = ssl_tls13_parse_supported_groups_ext(
                     ssl, p, extension_data_end);
                 if (ret != 0) {
-                    MBEDTLS_SSL_DEBUG_RET(1,
-                                          "mbedtls_ssl_parse_supported_groups_ext", ret);
+                    MBEDTLS_SSL_DEBUG_RET(
+                        1, "ssl_tls13_parse_supported_groups_ext", ret);
                     return ret;
                 }
 
                 break;
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
             case MBEDTLS_TLS_EXT_KEY_SHARE:
                 MBEDTLS_SSL_DEBUG_MSG(3, ("found key share extension"));
 
@@ -1508,23 +1586,16 @@
                 }
 
                 break;
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
 
             case MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS:
-                MBEDTLS_SSL_DEBUG_MSG(3, ("found supported versions extension"));
-
-                ret = ssl_tls13_parse_supported_versions_ext(
-                    ssl, p, extension_data_end);
-                if (ret != 0) {
-                    MBEDTLS_SSL_DEBUG_RET(1,
-                                          ("ssl_tls13_parse_supported_versions_ext"), ret);
-                    return ret;
-                }
+                /* Already parsed */
                 break;
 
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
             case MBEDTLS_TLS_EXT_PSK_KEY_EXCHANGE_MODES:
-                MBEDTLS_SSL_DEBUG_MSG(3, ("found psk key exchange modes extension"));
+                MBEDTLS_SSL_DEBUG_MSG(
+                    3, ("found psk key exchange modes extension"));
 
                 ret = ssl_tls13_parse_key_exchange_modes_ext(
                     ssl, p, extension_data_end);
@@ -1576,15 +1647,30 @@
                 ret = mbedtls_ssl_parse_sig_alg_ext(
                     ssl, p, extension_data_end);
                 if (ret != 0) {
-                    MBEDTLS_SSL_DEBUG_MSG(1,
-                                          (
-                                              "ssl_parse_supported_signature_algorithms_server_ext ( %d )",
-                                              ret));
+                    MBEDTLS_SSL_DEBUG_RET(
+                        1, "mbedtls_ssl_parse_sig_alg_ext", ret);
                     return ret;
                 }
                 break;
 #endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED */
 
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+            case MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT:
+                MBEDTLS_SSL_DEBUG_MSG(3, ("found record_size_limit extension"));
+
+                ret = mbedtls_ssl_tls13_parse_record_size_limit_ext(
+                    ssl, p, extension_data_end);
+
+                /*
+                 * TODO: Return unconditionally here until we handle the record
+                 *       size limit correctly.
+                 *       Once handled correctly, only return in case of errors.
+                 */
+                return ret;
+
+                break;
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
             default:
                 MBEDTLS_SSL_PRINT_EXT(
                     3, MBEDTLS_SSL_HS_CLIENT_HELLO,
@@ -1704,15 +1790,27 @@
 
     MBEDTLS_SSL_PROC_CHK_NEG(ssl_tls13_parse_client_hello(ssl, buf,
                                                           buf + buflen));
-    parse_client_hello_ret = ret; /* Store return value of parse_client_hello,
-                                   * only SSL_CLIENT_HELLO_OK or
-                                   * SSL_CLIENT_HELLO_HRR_REQUIRED at this
-                                   * stage as negative error codes are handled
+    parse_client_hello_ret = ret; /* Store positive return value of
+                                   * parse_client_hello,
+                                   * as negative error codes are handled
                                    * by MBEDTLS_SSL_PROC_CHK_NEG. */
 
+    /*
+     * Version 1.2 of the protocol has been chosen, set the
+     * ssl->keep_current_message flag for the ClientHello to be kept and parsed
+     * as a TLS 1.2 ClientHello. We also change ssl->tls_version to
+     * MBEDTLS_SSL_VERSION_TLS1_2 thus from now on mbedtls_ssl_handshake_step()
+     * will dispatch to the TLS 1.2 state machine.
+     */
+    if (SSL_CLIENT_HELLO_TLS1_2 == parse_client_hello_ret) {
+        ssl->keep_current_message = 1;
+        ssl->tls_version = MBEDTLS_SSL_VERSION_TLS1_2;
+        return 0;
+    }
+
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_postprocess_client_hello(ssl));
 
-    if (parse_client_hello_ret == SSL_CLIENT_HELLO_OK) {
+    if (SSL_CLIENT_HELLO_OK == parse_client_hello_ret) {
         mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_SERVER_HELLO);
     } else {
         mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_HELLO_RETRY_REQUEST);
@@ -1813,7 +1911,7 @@
 
     *out_len = 0;
 
-#if defined(MBEDTLS_ECDH_C)
+#if defined(PSA_WANT_ALG_ECDH)
     if (mbedtls_ssl_tls13_named_group_is_ecdhe(named_group)) {
         ret = mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange(
             ssl, named_group, buf, end, out_len);
@@ -1824,7 +1922,7 @@
             return ret;
         }
     } else
-#endif /* MBEDTLS_ECDH_C */
+#endif /* PSA_WANT_ALG_ECDH */
     if (0 /* Other kinds of KEMs */) {
     } else {
         ((void) ssl);
@@ -2145,9 +2243,8 @@
 
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_prepare_server_hello(ssl));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                         MBEDTLS_SSL_HS_SERVER_HELLO, &buf,
-                                                         &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_SERVER_HELLO, &buf, &buf_len));
 
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_server_hello_body(ssl, buf,
                                                            buf + buf_len,
@@ -2319,15 +2416,16 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> write encrypted extensions"));
 
-    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                         MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS, &buf,
-                                                         &buf_len));
+    MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                             ssl, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
+                             &buf, &buf_len));
 
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_encrypted_extensions_body(
                              ssl, buf, buf + buf_len, &msg_len));
 
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
-                             ssl, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS, buf, msg_len));
+                             ssl, MBEDTLS_SSL_HS_ENCRYPTED_EXTENSIONS,
+                             buf, msg_len));
 
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(
                              ssl, buf_len, msg_len));
@@ -2452,15 +2550,16 @@
         unsigned char *buf;
         size_t buf_len, msg_len;
 
-        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                             MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
-                                                             &buf, &buf_len));
+        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                                 ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
+                                 &buf, &buf_len));
 
         MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_certificate_request_body(
                                  ssl, buf, buf + buf_len, &msg_len));
 
         MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_add_hs_msg_to_checksum(
-                                 ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST, buf, msg_len));
+                                 ssl, MBEDTLS_SSL_HS_CERTIFICATE_REQUEST,
+                                 buf, msg_len));
 
         MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(
                                  ssl, buf_len, msg_len));
@@ -2571,8 +2670,8 @@
 
     ret = mbedtls_ssl_tls13_compute_resumption_master_secret(ssl);
     if (ret != 0) {
-        MBEDTLS_SSL_DEBUG_RET(1,
-                              "mbedtls_ssl_tls13_compute_resumption_master_secret", ret);
+        MBEDTLS_SSL_DEBUG_RET(
+            1, "mbedtls_ssl_tls13_compute_resumption_master_secret", ret);
     }
 
     mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_HANDSHAKE_WRAPUP);
@@ -2597,7 +2696,8 @@
  */
     /* Sent NewSessionTicket message only when client supports PSK */
     if (mbedtls_ssl_tls13_some_psk_enabled(ssl)) {
-        mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET);
+        mbedtls_ssl_handshake_set_state(
+            ssl, MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET);
     } else
 #endif
     {
@@ -2860,9 +2960,9 @@
         MBEDTLS_SSL_PROC_CHK(ssl_tls13_prepare_new_session_ticket(
                                  ssl, ticket_nonce, sizeof(ticket_nonce)));
 
-        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(ssl,
-                                                             MBEDTLS_SSL_HS_NEW_SESSION_TICKET,
-                                                             &buf, &buf_len));
+        MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_start_handshake_msg(
+                                 ssl, MBEDTLS_SSL_HS_NEW_SESSION_TICKET,
+                                 &buf, &buf_len));
 
         MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_new_session_ticket_body(
                                  ssl, buf, buf + buf_len, &msg_len,
@@ -3030,7 +3130,8 @@
             if (ssl->handshake->new_session_tickets_count == 0) {
                 mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_HANDSHAKE_OVER);
             } else {
-                mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET);
+                mbedtls_ssl_handshake_set_state(
+                    ssl, MBEDTLS_SSL_TLS1_3_NEW_SESSION_TICKET);
             }
             break;
 
diff --git a/library/x509.c b/library/x509.c
index fc13b92..c9524c9 100644
--- a/library/x509.c
+++ b/library/x509.c
@@ -53,8 +53,6 @@
 #include <time.h>
 #endif
 
-#include "mbedtls/legacy_or_psa.h"
-
 #define CHECK(code) if ((ret = (code)) != 0) { return ret; }
 #define CHECK_RANGE(min, max, val)                      \
     do                                                  \
@@ -135,31 +133,31 @@
 static inline const char *md_type_to_string(mbedtls_md_type_t md_alg)
 {
     switch (md_alg) {
-#if defined(MBEDTLS_HAS_ALG_MD5_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_MD5)
         case MBEDTLS_MD_MD5:
             return "MD5";
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
         case MBEDTLS_MD_SHA1:
             return "SHA1";
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_224_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA224)
         case MBEDTLS_MD_SHA224:
             return "SHA224";
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_256_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA256)
         case MBEDTLS_MD_SHA256:
             return "SHA256";
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_384_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA384)
         case MBEDTLS_MD_SHA384:
             return "SHA384";
 #endif
-#if defined(MBEDTLS_HAS_ALG_SHA_512_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA512)
         case MBEDTLS_MD_SHA512:
             return "SHA512";
 #endif
-#if defined(MBEDTLS_HAS_ALG_RIPEMD160_VIA_MD_OR_PSA)
+#if defined(MBEDTLS_MD_CAN_RIPEMD160)
         case MBEDTLS_MD_RIPEMD160:
             return "RIPEMD160";
 #endif
@@ -1285,6 +1283,7 @@
             return ret;
         }
 
+        mbedtls_x509_free_subject_alt_name(&dummy_san_buf);
         /* Allocate and assign next pointer */
         if (cur->buf.p != NULL) {
             if (cur->next != NULL) {
@@ -1436,6 +1435,29 @@
         break;
 
         /*
+         * directoryName
+         */
+        case (MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_X509_SAN_DIRECTORY_NAME):
+        {
+            size_t name_len;
+            unsigned char *p = san_buf->p;
+            memset(san, 0, sizeof(mbedtls_x509_subject_alternative_name));
+            san->type = MBEDTLS_X509_SAN_DIRECTORY_NAME;
+
+            ret = mbedtls_asn1_get_tag(&p, p + san_buf->len, &name_len,
+                                       MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE);
+
+            if (ret != 0) {
+                return ret;
+            }
+
+            if ((ret = mbedtls_x509_get_name(&p, p + name_len,
+                                             &san->san.directory_name)) != 0) {
+                return ret;
+            }
+        }
+        break;
+        /*
          * Type not supported
          */
         default:
@@ -1444,6 +1466,13 @@
     return 0;
 }
 
+void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san)
+{
+    if (san->type == MBEDTLS_X509_SAN_DIRECTORY_NAME) {
+        mbedtls_asn1_free_named_data_list_shallow(san->san.directory_name.next);
+    }
+}
+
 #if !defined(MBEDTLS_X509_REMOVE_INFO)
 int mbedtls_x509_info_subject_alt_name(char **buf, size_t *size,
                                        const mbedtls_x509_sequence
@@ -1556,6 +1585,28 @@
             break;
 
             /*
+             * directoryName
+             */
+            case MBEDTLS_X509_SAN_DIRECTORY_NAME:
+            {
+                ret = mbedtls_snprintf(p, n, "\n%s    directoryName : ", prefix);
+                if (ret < 0 || (size_t) ret >= n) {
+                    mbedtls_x509_free_subject_alt_name(&san);
+                }
+
+                MBEDTLS_X509_SAFE_SNPRINTF;
+                ret = mbedtls_x509_dn_gets(p, n, &san.san.directory_name);
+
+                if (ret < 0) {
+                    mbedtls_x509_free_subject_alt_name(&san);
+                    return ret;
+                }
+
+                p += ret;
+                n -= ret;
+            }
+            break;
+            /*
              * Type not supported, skip item.
              */
             default:
@@ -1564,6 +1615,9 @@
                 break;
         }
 
+        /* So far memory is freed only in the case of directoryName
+         * parsing succeeding, as mbedtls_x509_get_name allocates memory. */
+        mbedtls_x509_free_subject_alt_name(&san);
         cur = cur->next;
     }
 
diff --git a/library/x509_crt.c b/library/x509_crt.c
index cf62532..874d8f6 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -49,6 +49,7 @@
 #include "mbedtls/psa_util.h"
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 #include "hash_info.h"
+#include "x509_invasive.h"
 
 #include "mbedtls/platform.h"
 
@@ -58,6 +59,10 @@
 
 #if defined(MBEDTLS_HAVE_TIME)
 #if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
+#define WIN32_LEAN_AND_MEAN
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0600
+#endif
 #include <windows.h>
 #else
 #include <time.h>
@@ -101,7 +106,7 @@
     MBEDTLS_X509_ID_FLAG(MBEDTLS_MD_SHA384) |
     MBEDTLS_X509_ID_FLAG(MBEDTLS_MD_SHA512),
     0xFFFFFFF, /* Any PK alg    */
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     /* Curves at or above 128-bit security level. Note that this selection
      * should be aligned with ssl_preset_default_curves in ssl_tls.c. */
     MBEDTLS_X509_ID_FLAG(MBEDTLS_ECP_DP_SECP256R1) |
@@ -111,9 +116,9 @@
     MBEDTLS_X509_ID_FLAG(MBEDTLS_ECP_DP_BP384R1) |
     MBEDTLS_X509_ID_FLAG(MBEDTLS_ECP_DP_BP512R1) |
     0,
-#else
+#else /* MBEDTLS_ECP_LIGHT */
     0,
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
     2048,
 };
 
@@ -152,13 +157,13 @@
     /* Only ECDSA */
     MBEDTLS_X509_ID_FLAG(MBEDTLS_PK_ECDSA) |
     MBEDTLS_X509_ID_FLAG(MBEDTLS_PK_ECKEY),
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     /* Only NIST P-256 and P-384 */
     MBEDTLS_X509_ID_FLAG(MBEDTLS_ECP_DP_SECP256R1) |
     MBEDTLS_X509_ID_FLAG(MBEDTLS_ECP_DP_SECP384R1),
-#else
+#else /* MBEDTLS_ECP_LIGHT */
     0,
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
     0,
 };
 
@@ -226,9 +231,9 @@
 
         return -1;
     }
-#endif
+#endif /* MBEDTLS_RSA_C */
 
-#if defined(MBEDTLS_ECP_C)
+#if defined(MBEDTLS_ECP_LIGHT)
     if (pk_alg == MBEDTLS_PK_ECDSA ||
         pk_alg == MBEDTLS_PK_ECKEY ||
         pk_alg == MBEDTLS_PK_ECKEY_DH) {
@@ -244,7 +249,7 @@
 
         return -1;
     }
-#endif
+#endif /* MBEDTLS_ECP_LIGHT */
 
     return -1;
 }
@@ -2524,6 +2529,194 @@
     }
 }
 
+#ifdef _WIN32
+#ifdef _MSC_VER
+#pragma comment(lib, "ws2_32.lib")
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#elif (defined(__MINGW32__) || defined(__MINGW64__)) && _WIN32_WINNT >= 0x0600
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#endif
+#elif defined(__sun)
+/* Solaris requires -lsocket -lnsl for inet_pton() */
+#elif defined(__has_include)
+#if __has_include(<sys/socket.h>)
+#include <sys/socket.h>
+#endif
+#if __has_include(<arpa/inet.h>)
+#include <arpa/inet.h>
+#endif
+#endif
+
+/* Use whether or not AF_INET6 is defined to indicate whether or not to use
+ * the platform inet_pton() or a local implementation (below).  The local
+ * implementation may be used even in cases where the platform provides
+ * inet_pton(), e.g. when there are different includes required and/or the
+ * platform implementation requires dependencies on additional libraries.
+ * Specifically, Windows requires custom includes and additional link
+ * dependencies, and Solaris requires additional link dependencies.
+ * Also, as a coarse heuristic, use the local implementation if the compiler
+ * does not support __has_include(), or if the definition of AF_INET6 is not
+ * provided by headers included (or not) via __has_include() above.
+ * MBEDTLS_TEST_SW_INET_PTON is a bypass define to force testing of this code //no-check-names
+ * despite having a platform that has inet_pton. */
+#if !defined(AF_INET6) || defined(MBEDTLS_TEST_SW_INET_PTON) //no-check-names
+/* Definition located further below to possibly reduce compiler inlining */
+static int x509_inet_pton_ipv4(const char *src, void *dst);
+
+#define li_cton(c, n) \
+    (((n) = (c) - '0') <= 9 || (((n) = ((c)&0xdf) - 'A') <= 5 ? ((n) += 10) : 0))
+
+static int x509_inet_pton_ipv6(const char *src, void *dst)
+{
+    const unsigned char *p = (const unsigned char *) src;
+    int nonzero_groups = 0, num_digits, zero_group_start = -1;
+    uint16_t addr[8];
+    do {
+        /* note: allows excess leading 0's, e.g. 1:0002:3:... */
+        uint16_t group = num_digits = 0;
+        for (uint8_t digit; num_digits < 4; num_digits++) {
+            if (li_cton(*p, digit) == 0) {
+                break;
+            }
+            group = (group << 4) | digit;
+            p++;
+        }
+        if (num_digits != 0) {
+            addr[nonzero_groups++] = MBEDTLS_IS_BIG_ENDIAN ? group :
+                                     (group << 8) | (group >> 8);
+            if (*p == '\0') {
+                break;
+            } else if (*p == '.') {
+                /* Don't accept IPv4 too early or late */
+                if ((nonzero_groups == 0 && zero_group_start == -1) ||
+                    nonzero_groups >= 7) {
+                    break;
+                }
+
+                /* Walk back to prior ':', then parse as IPv4-mapped */
+                int steps = 4;
+                do {
+                    p--;
+                    steps--;
+                } while (*p != ':' && steps > 0);
+
+                if (*p != ':') {
+                    break;
+                }
+                p++;
+                nonzero_groups--;
+                if (x509_inet_pton_ipv4((const char *) p,
+                                        addr + nonzero_groups) != 0) {
+                    break;
+                }
+
+                nonzero_groups += 2;
+                p = (const unsigned char *) "";
+                break;
+            } else if (*p != ':') {
+                return -1;
+            }
+        } else {
+            /* Don't accept a second zero group or an invalid delimiter */
+            if (zero_group_start != -1 || *p != ':') {
+                return -1;
+            }
+            zero_group_start = nonzero_groups;
+
+            /* Accept a zero group at start, but it has to be a double colon */
+            if (zero_group_start == 0 && *++p != ':') {
+                return -1;
+            }
+
+            if (p[1] == '\0') {
+                ++p;
+                break;
+            }
+        }
+        ++p;
+    } while (nonzero_groups < 8);
+
+    if (*p != '\0') {
+        return -1;
+    }
+
+    if (zero_group_start != -1) {
+        if (nonzero_groups > 6) {
+            return -1;
+        }
+        int zero_groups = 8 - nonzero_groups;
+        int groups_after_zero = nonzero_groups - zero_group_start;
+
+        /* Move the non-zero part to after the zeroes */
+        if (groups_after_zero) {
+            memmove(addr + zero_group_start + zero_groups,
+                    addr + zero_group_start,
+                    groups_after_zero * sizeof(*addr));
+        }
+        memset(addr + zero_group_start, 0, zero_groups * sizeof(*addr));
+    } else {
+        if (nonzero_groups != 8) {
+            return -1;
+        }
+    }
+    memcpy(dst, addr, sizeof(addr));
+    return 0;
+}
+
+static int x509_inet_pton_ipv4(const char *src, void *dst)
+{
+    /* note: allows leading 0's, e.g. 000.000.000.000 */
+    const unsigned char *p = (const unsigned char *) src;
+    uint8_t *res = (uint8_t *) dst;
+    uint8_t digit, num_digits = 0;
+    uint8_t num_octets = 0;
+    uint16_t octet;
+
+    do {
+        octet = num_digits = 0;
+        do {
+            digit = *p - '0';
+            if (digit > 9) {
+                break;
+            }
+            octet = octet * 10 + digit;
+            num_digits++;
+            p++;
+        } while (num_digits < 3);
+
+        if (octet >= 256 || num_digits > 3 || num_digits == 0) {
+            break;
+        }
+        *res++ = (uint8_t) octet;
+        num_octets++;
+    } while (num_octets < 4 && *p++ == '.');
+    return num_octets == 4 && *p == '\0' ? 0 : -1;
+}
+
+#else
+
+static int x509_inet_pton_ipv6(const char *src, void *dst)
+{
+    return inet_pton(AF_INET6, src, dst) == 1 ? 0 : -1;
+}
+
+static int x509_inet_pton_ipv4(const char *src, void *dst)
+{
+    return inet_pton(AF_INET, src, dst) == 1 ? 0 : -1;
+}
+
+#endif /* !AF_INET6 || MBEDTLS_TEST_SW_INET_PTON */ //no-check-names
+
+MBEDTLS_STATIC_TESTABLE
+size_t mbedtls_x509_crt_parse_cn_inet_pton(const char *cn, void *dst)
+{
+    return strchr(cn, ':') == NULL
+            ? x509_inet_pton_ipv4(cn, dst) == 0 ? 4 : 0
+            : x509_inet_pton_ipv6(cn, dst) == 0 ? 16 : 0;
+}
+
 /*
  * Check for CN match
  */
@@ -2544,24 +2737,51 @@
     return -1;
 }
 
+static int x509_crt_check_san_ip(const mbedtls_x509_sequence *san,
+                                 const char *cn, size_t cn_len)
+{
+    uint32_t ip[4];
+    cn_len = mbedtls_x509_crt_parse_cn_inet_pton(cn, ip);
+    if (cn_len == 0) {
+        return -1;
+    }
+
+    for (const mbedtls_x509_sequence *cur = san; cur != NULL; cur = cur->next) {
+        const unsigned char san_type = (unsigned char) cur->buf.tag &
+                                       MBEDTLS_ASN1_TAG_VALUE_MASK;
+        if (san_type == MBEDTLS_X509_SAN_IP_ADDRESS &&
+            cur->buf.len == cn_len && memcmp(cur->buf.p, ip, cn_len) == 0) {
+            return 0;
+        }
+    }
+
+    return -1;
+}
+
 /*
  * Check for SAN match, see RFC 5280 Section 4.2.1.6
  */
-static int x509_crt_check_san(const mbedtls_x509_buf *name,
+static int x509_crt_check_san(const mbedtls_x509_sequence *san,
                               const char *cn, size_t cn_len)
 {
-    const unsigned char san_type = (unsigned char) name->tag &
-                                   MBEDTLS_ASN1_TAG_VALUE_MASK;
-
-    /* dNSName */
-    if (san_type == MBEDTLS_X509_SAN_DNS_NAME) {
-        return x509_crt_check_cn(name, cn, cn_len);
+    int san_ip = 0;
+    for (const mbedtls_x509_sequence *cur = san; cur != NULL; cur = cur->next) {
+        switch ((unsigned char) cur->buf.tag & MBEDTLS_ASN1_TAG_VALUE_MASK) {
+            case MBEDTLS_X509_SAN_DNS_NAME:                /* dNSName */
+                if (x509_crt_check_cn(&cur->buf, cn, cn_len) == 0) {
+                    return 0;
+                }
+                break;
+            case MBEDTLS_X509_SAN_IP_ADDRESS:              /* iPAddress */
+                san_ip = 1;
+                break;
+            /* (We may handle other types here later.) */
+            default: /* Unrecognized type */
+                break;
+        }
     }
 
-    /* (We may handle other types here later.) */
-
-    /* Unrecognized type */
-    return -1;
+    return san_ip ? x509_crt_check_san_ip(san, cn, cn_len) : -1;
 }
 
 /*
@@ -2572,31 +2792,23 @@
                                  uint32_t *flags)
 {
     const mbedtls_x509_name *name;
-    const mbedtls_x509_sequence *cur;
     size_t cn_len = strlen(cn);
 
     if (crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME) {
-        for (cur = &crt->subject_alt_names; cur != NULL; cur = cur->next) {
-            if (x509_crt_check_san(&cur->buf, cn, cn_len) == 0) {
-                break;
-            }
-        }
-
-        if (cur == NULL) {
-            *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
+        if (x509_crt_check_san(&crt->subject_alt_names, cn, cn_len) == 0) {
+            return;
         }
     } else {
         for (name = &crt->subject; name != NULL; name = name->next) {
             if (MBEDTLS_OID_CMP(MBEDTLS_OID_AT_CN, &name->oid) == 0 &&
                 x509_crt_check_cn(&name->val, cn, cn_len) == 0) {
-                break;
+                return;
             }
         }
 
-        if (name == NULL) {
-            *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
-        }
     }
+
+    *flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
 }
 
 /*
diff --git a/library/x509_invasive.h b/library/x509_invasive.h
new file mode 100644
index 0000000..d8fd74b
--- /dev/null
+++ b/library/x509_invasive.h
@@ -0,0 +1,53 @@
+/**
+ * \file x509_invasive.h
+ *
+ * \brief x509 module: interfaces for invasive testing only.
+ *
+ * The interfaces in this file are intended for testing purposes only.
+ * They SHOULD NOT be made available in library integrations except when
+ * building the library for testing.
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#ifndef MBEDTLS_X509_INVASIVE_H
+#define MBEDTLS_X509_INVASIVE_H
+
+#include "common.h"
+
+#if defined(MBEDTLS_TEST_HOOKS)
+
+/**
+ * \brief          This function parses a CN string as an IP address.
+ *
+ * \param cn       The CN string to parse. CN string MUST be NUL-terminated.
+ * \param dst      The target buffer to populate with the binary IP address.
+ *                 The buffer MUST be 16 bytes to save IPv6, and should be
+ *                 4-byte aligned if the result will be used as struct in_addr.
+ *                 e.g. uint32_t dst[4]
+ *
+ * \note           \cn is parsed as an IPv6 address if string contains ':',
+ *                 else \cn is parsed as an IPv4 address.
+ *
+ * \return         Length of binary IP address; num bytes written to target.
+ * \return         \c 0 on failure to parse CN string as an IP address.
+ */
+size_t mbedtls_x509_crt_parse_cn_inet_pton(const char *cn, void *dst);
+
+#endif /* MBEDTLS_TEST_HOOKS */
+
+#endif /* MBEDTLS_X509_INVASIVE_H */
diff --git a/library/x509write_crt.c b/library/x509write_crt.c
index 4f23395..70d7e93 100644
--- a/library/x509write_crt.c
+++ b/library/x509write_crt.c
@@ -32,7 +32,7 @@
 #include "mbedtls/error.h"
 #include "mbedtls/oid.h"
 #include "mbedtls/platform_util.h"
-#include "mbedtls/sha1.h"
+#include "mbedtls/md.h"
 
 #include <string.h>
 
@@ -46,7 +46,6 @@
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #include "hash_info.h"
-#include "mbedtls/legacy_or_psa.h"
 
 void mbedtls_x509write_crt_init(mbedtls_x509write_cert *ctx)
 {
@@ -195,7 +194,7 @@
                                             is_ca, buf + sizeof(buf) - len, len);
 }
 
-#if defined(MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA)
+#if defined(MBEDTLS_MD_CAN_SHA1)
 static int mbedtls_x509write_crt_set_key_identifier(mbedtls_x509write_cert *ctx,
                                                     int is_ca,
                                                     unsigned char tag)
@@ -229,8 +228,9 @@
         return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
     }
 #else
-    ret = mbedtls_sha1(buf + sizeof(buf) - len, len,
-                       buf + sizeof(buf) - 20);
+    ret = mbedtls_md(mbedtls_md_info_from_type(MBEDTLS_MD_SHA1),
+                     buf + sizeof(buf) - len, len,
+                     buf + sizeof(buf) - 20);
     if (ret != 0) {
         return ret;
     }
@@ -279,7 +279,7 @@
                                                     1,
                                                     (MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0));
 }
-#endif /* MBEDTLS_HAS_ALG_SHA_1_VIA_MD_OR_PSA_BASED_ON_USE_PSA */
+#endif /* MBEDTLS_MD_CAN_SHA1 */
 
 int mbedtls_x509write_crt_set_key_usage(mbedtls_x509write_cert *ctx,
                                         unsigned int key_usage)
diff --git a/library/x509write_csr.c b/library/x509write_csr.c
index d8d8e99..deb6617 100644
--- a/library/x509write_csr.c
+++ b/library/x509write_csr.c
@@ -26,6 +26,7 @@
 
 #if defined(MBEDTLS_X509_CSR_WRITE_C)
 
+#include "mbedtls/x509.h"
 #include "mbedtls/x509_csr.h"
 #include "mbedtls/asn1write.h"
 #include "mbedtls/error.h"
@@ -85,6 +86,105 @@
                                       critical, val, val_len);
 }
 
+int mbedtls_x509write_csr_set_subject_alternative_name(mbedtls_x509write_csr *ctx,
+                                                       const mbedtls_x509_san_list *san_list)
+{
+    int ret = 0;
+    const mbedtls_x509_san_list *cur;
+    unsigned char *buf;
+    unsigned char *p;
+    size_t len;
+    size_t buflen = 0;
+
+    /* Determine the maximum size of the SubjectAltName list */
+    for (cur = san_list; cur != NULL; cur = cur->next) {
+        /* Calculate size of the required buffer */
+        switch (cur->node.type) {
+            case MBEDTLS_X509_SAN_DNS_NAME:
+            case MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER:
+            case MBEDTLS_X509_SAN_IP_ADDRESS:
+                /* length of value for each name entry,
+                 * maximum 4 bytes for the length field,
+                 * 1 byte for the tag/type.
+                 */
+                buflen += cur->node.san.unstructured_name.len + 4 + 1;
+                break;
+
+            default:
+                /* Not supported - skip. */
+                break;
+        }
+    }
+
+    /* Add the extra length field and tag */
+    buflen += 4 + 1;
+
+    /* Allocate buffer */
+    buf = mbedtls_calloc(1, buflen);
+    if (buf == NULL) {
+        return MBEDTLS_ERR_ASN1_ALLOC_FAILED;
+    }
+
+    mbedtls_platform_zeroize(buf, buflen);
+    p = buf + buflen;
+
+    /* Write ASN.1-based structure */
+    cur = san_list;
+    len = 0;
+    while (cur != NULL) {
+        switch (cur->node.type) {
+            case MBEDTLS_X509_SAN_DNS_NAME:
+            case MBEDTLS_X509_SAN_UNIFORM_RESOURCE_IDENTIFIER:
+            case MBEDTLS_X509_SAN_IP_ADDRESS:
+            {
+                const unsigned char *unstructured_name =
+                    (const unsigned char *) cur->node.san.unstructured_name.p;
+                size_t unstructured_name_len = cur->node.san.unstructured_name.len;
+
+                MBEDTLS_ASN1_CHK_CLEANUP_ADD(len,
+                                             mbedtls_asn1_write_raw_buffer(
+                                                 &p, buf,
+                                                 unstructured_name, unstructured_name_len));
+                MBEDTLS_ASN1_CHK_CLEANUP_ADD(len, mbedtls_asn1_write_len(
+                                                 &p, buf, unstructured_name_len));
+                MBEDTLS_ASN1_CHK_CLEANUP_ADD(len,
+                                             mbedtls_asn1_write_tag(
+                                                 &p, buf,
+                                                 MBEDTLS_ASN1_CONTEXT_SPECIFIC | cur->node.type));
+            }
+            break;
+            default:
+                /* Skip unsupported names. */
+                break;
+        }
+        cur = cur->next;
+    }
+
+    MBEDTLS_ASN1_CHK_CLEANUP_ADD(len, mbedtls_asn1_write_len(&p, buf, len));
+    MBEDTLS_ASN1_CHK_CLEANUP_ADD(len,
+                                 mbedtls_asn1_write_tag(&p, buf,
+                                                        MBEDTLS_ASN1_CONSTRUCTED |
+                                                        MBEDTLS_ASN1_SEQUENCE));
+
+    ret = mbedtls_x509write_csr_set_extension(
+        ctx,
+        MBEDTLS_OID_SUBJECT_ALT_NAME,
+        MBEDTLS_OID_SIZE(MBEDTLS_OID_SUBJECT_ALT_NAME),
+        0,
+        buf + buflen - len,
+        len);
+
+    /* If we exceeded the allocated buffer it means that maximum size of the SubjectAltName list
+     * was incorrectly calculated and memory is corrupted. */
+    if (p < buf) {
+        ret = MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
+    }
+
+cleanup:
+    mbedtls_free(buf);
+    return ret;
+}
+
 int mbedtls_x509write_csr_set_key_usage(mbedtls_x509write_csr *ctx, unsigned char key_usage)
 {
     unsigned char buf[4] = { 0 };