diff --git a/ChangeLog.d/8848.txt b/ChangeLog.d/8848.txt
new file mode 100644
index 0000000..71bb7e3
--- /dev/null
+++ b/ChangeLog.d/8848.txt
@@ -0,0 +1,6 @@
+Removals
+   * Temporary function mbedtls_pk_wrap_as_opaque() is removed. To mimic the
+     same behavior mbedtls_pk_get_psa_attributes() and
+     mbedtls_pk_import_into_psa() can be used to import a PK key into PSA,
+     while mbedtls_pk_setup_opaque() can be used to wrap a PSA key into a opaque
+     PK context.
diff --git a/ChangeLog.d/add_get_ecp_group_id.txt b/ChangeLog.d/add_get_ecp_group_id.txt
new file mode 100644
index 0000000..3328062
--- /dev/null
+++ b/ChangeLog.d/add_get_ecp_group_id.txt
@@ -0,0 +1,3 @@
+Features
+   * Add new accessor to expose the private group id member of
+     `mbedtls_ecdh_context` structure.
diff --git a/ChangeLog.d/domain_parameters.txt b/ChangeLog.d/domain_parameters.txt
new file mode 100644
index 0000000..d860cc4
--- /dev/null
+++ b/ChangeLog.d/domain_parameters.txt
@@ -0,0 +1,9 @@
+New deprecations
+   * In the PSA API, domain parameters are no longer used for anything.
+     They are deprecated and will be removed in a future version of the
+     library.
+
+Removals
+   * In the PSA API, the experimental way to encode the public exponent of
+     an RSA key as a domain parameter is no longer supported. Use
+     psa_generate_key_ext() instead.
diff --git a/ChangeLog.d/ecp_write_key.txt b/ChangeLog.d/ecp_write_key.txt
new file mode 100644
index 0000000..73354c8
--- /dev/null
+++ b/ChangeLog.d/ecp_write_key.txt
@@ -0,0 +1,8 @@
+Features
+   * The new function mbedtls_ecp_write_key_ext() is similar to
+     mbedtls_ecp_write_key(), but can be used without separately calculating
+     the output length.
+
+New deprecations
+   * mbedtls_ecp_write_key() is deprecated in favor of
+     mbedtls_ecp_write_key_ext().
diff --git a/ChangeLog.d/fix-ssl-session-serialization-config.txt b/ChangeLog.d/fix-ssl-session-serialization-config.txt
new file mode 100644
index 0000000..ca1cc81
--- /dev/null
+++ b/ChangeLog.d/fix-ssl-session-serialization-config.txt
@@ -0,0 +1,4 @@
+Bugfix
+   * Fix missing bitflags in SSL session serialization headers. Their absence
+     allowed SSL sessions saved in one configuration to be loaded in a
+     different, incompatible configuration.
diff --git a/ChangeLog.d/psa_generate_key_ext.txt b/ChangeLog.d/psa_generate_key_ext.txt
new file mode 100644
index 0000000..8340f01
--- /dev/null
+++ b/ChangeLog.d/psa_generate_key_ext.txt
@@ -0,0 +1,3 @@
+Features
+   * The new function psa_generate_key_ext() allows generating an RSA
+     key pair with a custom public exponent.
diff --git a/ChangeLog.d/x509-add-ca_istrue.txt b/ChangeLog.d/x509-add-ca_istrue.txt
new file mode 100644
index 0000000..c950dbc
--- /dev/null
+++ b/ChangeLog.d/x509-add-ca_istrue.txt
@@ -0,0 +1,5 @@
+Features
+   * Add new accessor to expose the `MBEDTLS_PRIVATE(ca_istrue)` member of
+     `mbedtls_x509_crt` structure. This requires setting
+     the MBEDTLS_X509_EXT_BASIC_CONSTRAINTS bit in the certificate's
+     ext_types field.
diff --git a/docs/psa-driver-example-and-guide.md b/docs/psa-driver-example-and-guide.md
index d041723..aa825ad 100644
--- a/docs/psa-driver-example-and-guide.md
+++ b/docs/psa-driver-example-and-guide.md
@@ -157,11 +157,11 @@
 
 ```
 #if defined (MBEDTLS_PSA_P256M_DRIVER_ENABLED)
-            if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) &&
+            if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type(attributes) ) &&
                 PSA_ALG_IS_ECDSA(alg) &&
                 !PSA_ALG_ECDSA_IS_DETERMINISTIC( alg ) &&
-                PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type) == PSA_ECC_FAMILY_SECP_R1 &&
-                attributes->core.bits == 256 )
+                PSA_KEY_TYPE_ECC_GET_FAMILY(psa_get_key_type(attributes)) == PSA_ECC_FAMILY_SECP_R1 &&
+                psa_get_key_bits(attributes) == 256 )
             {
                 status = p256_transparent_sign_hash( attributes,
                                                      key_buffer,
diff --git a/docs/psa-transition.md b/docs/psa-transition.md
index e89128c..94b57eb 100644
--- a/docs/psa-transition.md
+++ b/docs/psa-transition.md
@@ -845,7 +845,6 @@
 
 ```
 unsigned char buf[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)];
-size_t length = PSA_BITS_TO_BYTES(mbedtls_pk_bitlen(&pk));
 mbedtls_ecp_keypair *ec = mbedtls_pk_ec(&pk);
 psa_ecc_curve_t curve;
 {
@@ -862,7 +861,8 @@
     mbedtls_ecp_point_free(&Q);
     mbedtls_mpi_free(&d);
 }
-mbedtls_ecp_write_key(ec, buf, length);
+size_t length;
+mbedtls_ecp_write_key_ext(ec, &length, buf, sizeof(buf));
 psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 psa_set_key_type(&attributes, PSA_KEY_TYPE_ECC_KEY_PAIR(curve));
 psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_... | ...);
@@ -900,8 +900,8 @@
 // Omitted: fill ec with key material
 // (the public key will not be used and does not need to be set)
 unsigned char buf[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)];
-size_t length = PSA_BITS_TO_BYTES(mbedtls_pk_bitlen(&pk));
-mbedtls_ecp_write_key(&ec, buf, length);
+size_t length;
+mbedtls_ecp_write_key_ext(&ec, &length, buf, sizeof(buf));
 psa_ecc_curve_t curve = ...; // need to determine the curve family manually
 psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 psa_set_key_attributes(&attributes, PSA_KEY_TYPE_ECC_KEY_PAIR(curve));
@@ -1300,7 +1300,7 @@
 The PSA API is a cryptography API, not an arithmetic API. As a consequence, there is no PSA equivalent for the ECC arithmetic functionality exposed by `ecp.h`:
 
 * Manipulation of point objects and input-output: the type `mbedtls_ecp_point` and functions operating on it (`mbedtls_ecp_point_xxx`, `mbedtls_ecp_copy`, `mbedtls_ecp_{set,is}_zero`, `mbedtls_ecp_tls_{read,write}_point`). Note that the PSA export format for public keys corresponds to the uncompressed point format (`MBEDTLS_ECP_PF_UNCOMPRESSED`), so [`psa_import_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga0336ea76bf30587ab204a8296462327b), [`psa_export_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga668e35be8d2852ad3feeef74ac6f75bf) and [`psa_export_public_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1gaf22ae73312217aaede2ea02cdebb6062) are equivalent to `mbedtls_ecp_point_read_binary` and `mbedtls_ecp_point_write_binary` for uncompressed points. The PSA API does not currently support compressed points, but it is likely that such support will be added in the future.
-* Manipulation of key pairs as such, with a bridge to bignum arithmetic (`mbedtls_ecp_keypair` type, `mbedtls_ecp_export`). However, the PSA export format for ECC private keys used by [`psa_import_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga0336ea76bf30587ab204a8296462327b), [`psa_export_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga668e35be8d2852ad3feeef74ac6f75bf) is the same as the format used by `mbedtls_ecp_read_key` and `mbedtls_ecp_write_key`.
+* Manipulation of key pairs as such, with a bridge to bignum arithmetic (`mbedtls_ecp_keypair` type, `mbedtls_ecp_export`). However, the PSA export format for ECC private keys used by [`psa_import_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga0336ea76bf30587ab204a8296462327b), [`psa_export_key`](https://mbed-tls.readthedocs.io/projects/api/en/development/api/group/group__import__export/#group__import__export_1ga668e35be8d2852ad3feeef74ac6f75bf) is the same as the format used by `mbedtls_ecp_read_key` and `mbedtls_ecp_write_key_ext`.
 * Elliptic curve arithmetic (`mbedtls_ecp_mul`, `mbedtls_ecp_muladd` and their restartable variants).
 
 ### Additional information about RSA
diff --git a/include/mbedtls/ecdh.h b/include/mbedtls/ecdh.h
index 792db79..a0909d6 100644
--- a/include/mbedtls/ecdh.h
+++ b/include/mbedtls/ecdh.h
@@ -142,6 +142,19 @@
 mbedtls_ecdh_context;
 
 /**
+ * \brief          Return the ECP group for provided context.
+ *
+ * \note           To access group specific fields, users should use
+ *                 `mbedtls_ecp_curve_info_from_grp_id` or
+ *                 `mbedtls_ecp_group_load` on the extracted `group_id`.
+ *
+ * \param ctx      The ECDH context to parse. This must not be \c NULL.
+ *
+ * \return         The \c mbedtls_ecp_group_id of the context.
+ */
+mbedtls_ecp_group_id mbedtls_ecdh_get_grp_id(mbedtls_ecdh_context *ctx);
+
+/**
  * \brief          Check whether a given group can be used for ECDH.
  *
  * \param gid      The ECP group ID to check.
diff --git a/include/mbedtls/ecp.h b/include/mbedtls/ecp.h
index 76aef32..d8f73ae 100644
--- a/include/mbedtls/ecp.h
+++ b/include/mbedtls/ecp.h
@@ -24,6 +24,7 @@
 #include "mbedtls/private_access.h"
 
 #include "mbedtls/build_info.h"
+#include "mbedtls/platform_util.h"
 
 #include "mbedtls/bignum.h"
 
@@ -1327,28 +1328,84 @@
 int mbedtls_ecp_read_key(mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key,
                          const unsigned char *buf, size_t buflen);
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+/**
+ * \brief           This function exports an elliptic curve private key.
+ *
+ * \deprecated      Note that although this function accepts an output
+ *                  buffer that is smaller or larger than the key, most key
+ *                  import interfaces require the output to have exactly
+ *                  key's nominal length. It is generally simplest to
+ *                  pass the key's nominal length as \c buflen, after
+ *                  checking that the output buffer is large enough.
+ *                  See the description of the \p buflen parameter for
+ *                  how to calculate the nominal length.
+ *                  To avoid this difficulty, use mbedtls_ecp_write_key_ext()
+ *                  instead.
+ *                  mbedtls_ecp_write_key() is deprecated and will be
+ *                  removed in a future version of the library.
+ *
+ * \note            If the private key was not set in \p key,
+ *                  the output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
+ * \param key       The private key.
+ * \param buf       The output buffer for containing the binary representation
+ *                  of the key.
+ *                  For Weierstrass curves, this is the big-endian
+ *                  representation, padded with null bytes at the beginning
+ *                  to reach \p buflen bytes.
+ *                  For Montgomery curves, this is the standard byte string
+ *                  representation (which is little-endian), padded with
+ *                  null bytes at the end to reach \p buflen bytes.
+ * \param buflen    The total length of the buffer in bytes.
+ *                  The length of the output is
+ *                  (`grp->nbits` + 7) / 8 bytes
+ *                  where `grp->nbits` is the private key size in bits.
+ *                  For Weierstrass keys, if the output buffer is smaller,
+ *                  leading zeros are trimmed to fit if possible. For
+ *                  Montgomery keys, the output buffer must always be large
+ *                  enough for the nominal length.
+ *
+ * \return          \c 0 on success.
+ * \return          #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL or
+ *                  #MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL if the \p key
+ *                  representation is larger than the available space in \p buf.
+ * \return          Another negative error code on different kinds of failure.
+ */
+int MBEDTLS_DEPRECATED mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
+                                             unsigned char *buf, size_t buflen);
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
+
 /**
  * \brief           This function exports an elliptic curve private key.
  *
  * \param key       The private key.
+ * \param olen      On success, the length of the private key.
+ *                  This is always (`grp->nbits` + 7) / 8 bytes
+ *                  where `grp->nbits` is the private key size in bits.
  * \param buf       The output buffer for containing the binary representation
- *                  of the key. (Big endian integer for Weierstrass curves, byte
- *                  string for Montgomery curves.)
+ *                  of the key.
  * \param buflen    The total length of the buffer in bytes.
+ *                  #MBEDTLS_ECP_MAX_BYTES is always sufficient.
  *
  * \return          \c 0 on success.
  * \return          #MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL if the \p key
-                    representation is larger than the available space in \p buf.
- * \return          #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if the operation for
- *                  the group is not implemented.
+ *                  representation is larger than the available space in \p buf.
+ * \return          #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if no private key is
+ *                  set in \p key.
  * \return          Another negative error code on different kinds of failure.
  */
-int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
-                          unsigned char *buf, size_t buflen);
+int mbedtls_ecp_write_key_ext(const mbedtls_ecp_keypair *key,
+                              size_t *olen, unsigned char *buf, size_t buflen);
 
 /**
  * \brief           This function exports an elliptic curve public key.
  *
+ * \note            If the public key was not set in \p key,
+ *                  the output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
  * \param key       The public key.
  * \param format    The point format. This must be either
  *                  #MBEDTLS_ECP_PF_COMPRESSED or #MBEDTLS_ECP_PF_UNCOMPRESSED.
@@ -1431,6 +1488,10 @@
  *                  Each of the output parameters can be a null pointer
  *                  if you do not need that parameter.
  *
+ * \note            If the private key or the public key was not set in \p key,
+ *                  the corresponding output is unspecified. Future versions
+ *                  may return an error in that case.
+ *
  * \param key       The key pair to export from.
  * \param grp       Slot for exported ECP group.
  *                  It must either be null or point to an initialized ECP group.
diff --git a/include/mbedtls/pk.h b/include/mbedtls/pk.h
index 534712b..ff80290 100644
--- a/include/mbedtls/pk.h
+++ b/include/mbedtls/pk.h
@@ -1213,33 +1213,6 @@
                             const mbedtls_pk_context *key);
 #endif /* MBEDTLS_PK_WRITE_C */
 
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-/**
- * \brief           Turn an EC or RSA key into an opaque one.
- *
- * \warning         This is a temporary utility function for tests. It might
- *                  change or be removed at any time without notice.
- *
- * \param pk        Input: the EC or RSA key to import to a PSA key.
- *                  Output: a PK context wrapping that PSA key.
- * \param key       Output: a PSA key identifier.
- *                  It's the caller's responsibility to call
- *                  psa_destroy_key() on that key identifier after calling
- *                  mbedtls_pk_free() on the PK context.
- * \param alg       The algorithm to allow for use with that key.
- * \param usage     The usage to allow for use with that key.
- * \param alg2      The secondary algorithm to allow for use with that key.
- *
- * \return          \c 0 if successful.
- * \return          An Mbed TLS error code otherwise.
- */
-int mbedtls_pk_wrap_as_opaque(mbedtls_pk_context *pk,
-                              mbedtls_svc_key_id_t *key,
-                              psa_algorithm_t alg,
-                              psa_key_usage_t usage,
-                              psa_algorithm_t alg2);
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 08c628a..9a66663 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -734,6 +734,51 @@
 }
 mbedtls_ssl_states;
 
+/*
+ * Early data status, client side only.
+ */
+
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+typedef enum {
+/*
+ * The client has not sent the first ClientHello yet, it is unknown if the
+ * client will send an early data indication extension or not.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN,
+
+/*
+ * See documentation of mbedtls_ssl_get_early_data_status().
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT,
+    MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED,
+    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, it has not received the response (ServerHello or
+ * HelloRetryRequest) from the server yet. The transform to protect early data
+ * is not set and early data cannot be sent yet.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_SENT,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, it has not received the response (ServerHello or
+ * HelloRetryRequest) from the server yet. The transform to protect early data
+ * has been set and early data can be written now.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE,
+
+/*
+ * The client has sent an early data indication extension in its first
+ * ClientHello, the server has accepted them and the client has received the
+ * server Finished message. It cannot send early data to the server anymore.
+ */
+    MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED,
+} mbedtls_ssl_early_data_status;
+
+#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */
+
 /**
  * \brief          Callback type: send data on the network.
  *
@@ -1673,33 +1718,29 @@
 #endif /* MBEDTLS_SSL_RENEGOTIATION */
 
     /**
-     *  Maximum TLS version to be negotiated, then negotiated TLS version.
+     * Maximum TLS version to be negotiated, then negotiated TLS version.
      *
-     *  It is initialized as the configured maximum TLS version to be
-     *  negotiated by mbedtls_ssl_setup().
+     * It is initialized as the configured maximum TLS version to be
+     * negotiated by mbedtls_ssl_setup().
      *
-     *  When renegotiating or resuming a session, it is overwritten in the
-     *  ClientHello writing preparation stage with the previously negotiated
-     *  TLS version.
+     * When renegotiating or resuming a session, it is overwritten in the
+     * ClientHello writing preparation stage with the previously negotiated
+     * TLS version.
      *
-     *  On client side, it is updated to the TLS version selected by the server
-     *  for the handshake when the ServerHello is received.
+     * On client side, it is updated to the TLS version selected by the server
+     * for the handshake when the ServerHello is received.
      *
-     *  On server side, it is updated to the TLS version the server selects for
-     *  the handshake when the ClientHello is received.
+     * On server side, it is updated to the TLS version the server selects for
+     * the handshake when the ClientHello is received.
      */
     mbedtls_ssl_protocol_version MBEDTLS_PRIVATE(tls_version);
 
 #if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
     /**
-     *  Status of the negotiation of the use of early data.
-     *  See the documentation of mbedtls_ssl_get_early_data_status() for more
-     *  information.
-     *
-     *  Reset to #MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT when the context is
-     *  reset.
+     * Status of the negotiation of the use of early data. Reset to
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN when the context is reset.
      */
-    int MBEDTLS_PRIVATE(early_data_status);
+    mbedtls_ssl_early_data_status MBEDTLS_PRIVATE(early_data_status);
 #endif
 
     unsigned MBEDTLS_PRIVATE(badmac_seen);       /*!< records with a bad MAC received    */
@@ -1818,7 +1859,8 @@
                                                          *   within a single datagram.  */
 #endif /* MBEDTLS_SSL_PROTO_DTLS */
 
-#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_SRV_C)
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+#if defined(MBEDTLS_SSL_SRV_C)
     /*
      * One of:
      * MBEDTLS_SSL_EARLY_DATA_NO_DISCARD
@@ -1827,6 +1869,8 @@
      */
     uint8_t MBEDTLS_PRIVATE(discard_early_data_record);
 #endif
+    uint32_t MBEDTLS_PRIVATE(total_early_data_size); /*!< Number of received/written early data bytes */
+#endif /* MBEDTLS_SSL_EARLY_DATA */
 
     /*
      * Record layer (outgoing data)
@@ -5150,10 +5194,6 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT  1
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED  2
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED  3
-
 #if defined(MBEDTLS_SSL_SRV_C)
 /**
  * \brief          Read at most 'len' bytes of early data
@@ -5206,17 +5246,43 @@
  * \brief          Try to write exactly 'len' application data bytes while
  *                 performing the handshake (early data).
  *
+ * \warning        Early data is defined in the TLS 1.3 specification, RFC 8446.
+ *                 IMPORTANT NOTE from section 2.3 of the specification:
+ *
+ *                 The security properties for 0-RTT data are weaker than
+ *                 those for other kinds of TLS data. Specifically:
+ *                 - This data is not forward secret, as it is encrypted
+ *                   solely under keys derived using the offered PSK.
+ *                 - There are no guarantees of non-replay between connections.
+ *                   Protection against replay for ordinary TLS 1.3 1-RTT data
+ *                   is provided via the server's Random value, but 0-RTT data
+ *                   does not depend on the ServerHello and therefore has
+ *                   weaker guarantees. This is especially relevant if the
+ *                   data is authenticated either with TLS client
+ *                   authentication or inside the application protocol. The
+ *                   same warnings apply to any use of the
+ *                   early_exporter_master_secret.
+ *
  * \note           This function behaves mainly as mbedtls_ssl_write(). The
  *                 specification of mbedtls_ssl_write() relevant to TLS 1.3
  *                 (thus not the parts specific to (D)TLS1.2) applies to this
- *                 function and the present documentation is restricted to the
- *                 differences with mbedtls_ssl_write().
+ *                 function and the present documentation is mainly restricted
+ *                 to the differences with mbedtls_ssl_write(). One noticeable
+ *                 difference though is that mbedtls_ssl_write() aims to
+ *                 complete the handshake before to write application data
+ *                 while mbedtls_ssl_write_early() aims to drive the handshake
+ *                 just past the point where it is not possible to send early
+ *                 data anymore.
  *
  * \param ssl      SSL context
  * \param buf      buffer holding the data
  * \param len      how many bytes must be written
  *
- * \return         One additional specific return value:
+ * \return         The (non-negative) number of bytes actually written if
+ *                 successful (may be less than \p len).
+ *
+ * \return         One additional specific error code compared to
+ *                 mbedtls_ssl_write():
  *                 #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA.
  *
  *                 #MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA is returned when it
@@ -5237,9 +5303,11 @@
  *                 already completed.
  *
  *                 It is not possible to write early data for the SSL context
- *                 \p ssl but this does not preclude for using it with
+ *                 \p ssl and any subsequent call to this API will return this
+ *                 error code. But this does not preclude for using it with
  *                 mbedtls_ssl_write(), mbedtls_ssl_read() or
- *                 mbedtls_ssl_handshake().
+ *                 mbedtls_ssl_handshake() and the handshake can be
+ *                 completed by calling one of these APIs.
  *
  * \note           This function may write early data only if the SSL context
  *                 has been configured for the handshake with a PSK for which
diff --git a/include/mbedtls/x509.h b/include/mbedtls/x509.h
index be63612..453f598 100644
--- a/include/mbedtls/x509.h
+++ b/include/mbedtls/x509.h
@@ -322,9 +322,151 @@
  */
 int mbedtls_x509_dn_gets(char *buf, size_t size, const mbedtls_x509_name *dn);
 
+/**
+ * \brief            Convert the certificate DN string \p name into
+ *                   a linked list of mbedtls_x509_name (equivalent to
+ *                   mbedtls_asn1_named_data).
+ *
+ * \note             This function allocates a linked list, and places the head
+ *                   pointer in \p head. This list must later be freed by a
+ *                   call to mbedtls_asn1_free_named_data_list().
+ *
+ * \param[out] head  Address in which to store the pointer to the head of the
+ *                   allocated list of mbedtls_x509_name
+ * \param[in] name   The string representation of a DN to convert
+ *
+ * \return           0 on success, or a negative error code.
+ */
 int mbedtls_x509_string_to_names(mbedtls_asn1_named_data **head, const char *name);
 
 /**
+ * \brief          Return the next relative DN in an X509 name.
+ *
+ * \note           Intended use is to compare function result to dn->next
+ *                 in order to detect boundaries of multi-valued RDNs.
+ *
+ * \param dn       Current node in the X509 name
+ *
+ * \return         Pointer to the first attribute-value pair of the
+ *                 next RDN in sequence, or NULL if end is reached.
+ */
+static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
+    mbedtls_x509_name *dn)
+{
+    while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
+        dn = dn->next;
+    }
+    return dn->next;
+}
+
+/**
+ * \brief          Store the certificate serial in printable form into buf;
+ *                 no more than size characters will be written.
+ *
+ * \param buf      Buffer to write to
+ * \param size     Maximum size of buffer
+ * \param serial   The X509 serial to represent
+ *
+ * \return         The length of the string written (not including the
+ *                 terminated nul byte), or a negative error code.
+ */
+int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
+
+/**
+ * \brief          Compare pair of mbedtls_x509_time.
+ *
+ * \param t1       mbedtls_x509_time to compare
+ * \param t2       mbedtls_x509_time to compare
+ *
+ * \return         < 0 if t1 is before t2
+ *                   0 if t1 equals t2
+ *                 > 0 if t1 is after t2
+ */
+int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
+
+#if defined(MBEDTLS_HAVE_TIME_DATE)
+/**
+ * \brief          Fill mbedtls_x509_time with provided mbedtls_time_t.
+ *
+ * \param tt       mbedtls_time_t to convert
+ * \param now      mbedtls_x509_time to fill with converted mbedtls_time_t
+ *
+ * \return         \c 0 on success
+ * \return         A non-zero return value on failure.
+ */
+int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
+#endif /* MBEDTLS_HAVE_TIME_DATE */
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the past.
+ *
+ * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param to       mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the past or an error occurred,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
+
+/**
+ * \brief          Check a given mbedtls_x509_time against the system time
+ *                 and tell if it's in the future.
+ *
+ * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
+ *                 Hence the return value of 1 if on internal errors.
+ *
+ * \param from     mbedtls_x509_time to check
+ *
+ * \return         1 if the given time is in the future or an error occurred,
+ *                 0 otherwise.
+ */
+int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
+
+/**
+ * \brief          This function parses an item in the SubjectAlternativeNames
+ *                 extension. Please note that this function might allocate
+ *                 additional memory for a subject alternative name, thus
+ *                 mbedtls_x509_free_subject_alt_name has to be called
+ *                 to dispose of this additional memory afterwards.
+ *
+ * \param san_buf  The buffer holding the raw data item of the subject
+ *                 alternative name.
+ * \param san      The target structure to populate with the parsed presentation
+ *                 of the subject alternative name encoded in \p san_buf.
+ *
+ * \note           Supported GeneralName types, as defined in RFC 5280:
+ *                 "rfc822Name", "dnsName", "directoryName",
+ *                 "uniformResourceIdentifier" and "hardware_module_name"
+ *                 of type "otherName", as defined in RFC 4108.
+ *
+ * \note           This function should be called on a single raw data of
+ *                 subject alternative name. For example, after successful
+ *                 certificate parsing, one must iterate on every item in the
+ *                 \c crt->subject_alt_names sequence, and pass it to
+ *                 this function.
+ *
+ * \warning        The target structure contains pointers to the raw data of the
+ *                 parsed certificate, and its lifetime is restricted by the
+ *                 lifetime of the certificate.
+ *
+ * \return         \c 0 on success
+ * \return         #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
+ *                 SAN type.
+ * \return         Another negative value for any other failure.
+ */
+int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
+                                        mbedtls_x509_subject_alternative_name *san);
+/**
+ * \brief          Unallocate all data related to subject alternative name
+ *
+ * \param san      SAN structure - extra memory owned by this structure will be freed
+ */
+void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
+
+/**
  * \brief          This function parses a CN string as an IP address.
  *
  * \param cn       The CN string to parse. CN string MUST be null-terminated.
diff --git a/include/mbedtls/x509_crt.h b/include/mbedtls/x509_crt.h
index 3f1a1e7..1ce0d23 100644
--- a/include/mbedtls/x509_crt.h
+++ b/include/mbedtls/x509_crt.h
@@ -916,6 +916,18 @@
     return ctx->MBEDTLS_PRIVATE(ext_types) & ext_type;
 }
 
+/**
+ * \brief               Access the ca_istrue field
+ *
+ * \param[in] crt       Certificate to be queried, must not be \c NULL
+ *
+ * \return              \c 1 if this a CA certificate \c 0 otherwise.
+ * \return              MBEDTLS_ERR_X509_INVALID_EXTENSIONS if the certificate does not contain
+ *                      the Optional Basic Constraint extension.
+ *
+ */
+int mbedtls_x509_crt_get_ca_istrue(const mbedtls_x509_crt *crt);
+
 /** \} name Structures and functions for parsing and writing X.509 certificates */
 
 #if defined(MBEDTLS_X509_CRT_WRITE_C)
diff --git a/include/psa/crypto.h b/include/psa/crypto.h
index fe10ee0..73889e0 100644
--- a/include/psa/crypto.h
+++ b/include/psa/crypto.h
@@ -119,8 +119,9 @@
  * value in the structure.
  * The persistent key will be written to storage when the attribute
  * structure is passed to a key creation function such as
- * psa_import_key(), psa_generate_key(),
- * psa_key_derivation_output_key() or psa_copy_key().
+ * psa_import_key(), psa_generate_key(), psa_generate_key_ext(),
+ * psa_key_derivation_output_key(), psa_key_derivation_output_key_ext()
+ * or psa_copy_key().
  *
  * This function may be declared as `static` (i.e. without external
  * linkage). This function may be provided as a function-like macro,
@@ -163,8 +164,9 @@
  * value in the structure.
  * The persistent key will be written to storage when the attribute
  * structure is passed to a key creation function such as
- * psa_import_key(), psa_generate_key(),
- * psa_key_derivation_output_key() or psa_copy_key().
+ * psa_import_key(), psa_generate_key(), psa_generate_key_ext(),
+ * psa_key_derivation_output_key(), psa_key_derivation_output_key_ext()
+ * or psa_copy_key().
  *
  * This function may be declared as `static` (i.e. without external
  * linkage). This function may be provided as a function-like macro,
@@ -3226,7 +3228,8 @@
  *    psa_key_derivation_set_capacity(). You may do this before, in the middle
  *    of or after providing inputs. For some algorithms, this step is mandatory
  *    because the output depends on the maximum capacity.
- * -# To derive a key, call psa_key_derivation_output_key().
+ * -# To derive a key, call psa_key_derivation_output_key() or
+ *    psa_key_derivation_output_key_ext().
  *    To derive a byte string for a different purpose, call
  *    psa_key_derivation_output_bytes().
  *    Successive calls to these functions use successive output bytes
@@ -3449,7 +3452,8 @@
  * \note Once all inputs steps are completed, the operations will allow:
  * - psa_key_derivation_output_bytes() if each input was either a direct input
  *   or  a key with #PSA_KEY_USAGE_DERIVE set;
- * - psa_key_derivation_output_key() if the input for step
+ * - psa_key_derivation_output_key() or psa_key_derivation_output_key_ext()
+ *   if the input for step
  *   #PSA_KEY_DERIVATION_INPUT_SECRET or #PSA_KEY_DERIVATION_INPUT_PASSWORD
  *   was from a key slot with #PSA_KEY_USAGE_DERIVE and each other input was
  *   either a direct input or a key with #PSA_KEY_USAGE_DERIVE set;
@@ -3697,6 +3701,11 @@
  * Future versions of this specification may include additional restrictions
  * on the derived key based on the attributes and strength of the secret key.
  *
+ * \note This function is equivalent to calling
+ *       psa_key_derivation_output_key_ext()
+ *       with the production parameters #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *       and `params_data_length == 0` (i.e. `params->data` is empty).
+ *
  * \param[in] attributes    The attributes for the new key.
  *                          If the key type to be created is
  *                          #PSA_KEY_TYPE_PASSWORD_HASH then the algorithm in
@@ -3750,6 +3759,83 @@
     psa_key_derivation_operation_t *operation,
     mbedtls_svc_key_id_t *key);
 
+/** Derive a key from an ongoing key derivation operation with custom
+ *  production parameters.
+ *
+ * See the description of psa_key_derivation_out_key() for the operation of
+ * this function with the default production parameters.
+ * Mbed TLS currently does not currently support any non-default production
+ * parameters.
+ *
+ * \note This function is experimental and may change in future minor
+ *       versions of Mbed TLS.
+ *
+ * \param[in] attributes    The attributes for the new key.
+ *                          If the key type to be created is
+ *                          #PSA_KEY_TYPE_PASSWORD_HASH then the algorithm in
+ *                          the policy must be the same as in the current
+ *                          operation.
+ * \param[in,out] operation The key derivation operation object to read from.
+ * \param[in] params        Customization parameters for the key derivation.
+ *                          When this is #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *                          with \p params_data_length = 0,
+ *                          this function is equivalent to
+ *                          psa_key_derivation_output_key().
+ *                          Mbed TLS currently only supports the default
+ *                          production parameters, i.e.
+ *                          #PSA_KEY_PRODUCTION_PARAMETERS_INIT,
+ *                          for all key types.
+ * \param params_data_length
+ *                          Length of `params->data` in bytes.
+ * \param[out] key          On success, an identifier for the newly created
+ *                          key. For persistent keys, this is the key
+ *                          identifier defined in \p attributes.
+ *                          \c 0 on failure.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ *         If the key is persistent, the key material and the key's metadata
+ *         have been saved to persistent storage.
+ * \retval #PSA_ERROR_ALREADY_EXISTS
+ *         This is an attempt to create a persistent key, and there is
+ *         already a persistent key with the given identifier.
+ * \retval #PSA_ERROR_INSUFFICIENT_DATA
+ *         There was not enough data to create the desired key.
+ *         Note that in this case, no output is written to the output buffer.
+ *         The operation's capacity is set to 0, thus subsequent calls to
+ *         this function will not succeed, even with a smaller output buffer.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ *         The key type or key size is not supported, either by the
+ *         implementation in general or in this particular location.
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ *         The provided key attributes are not valid for the operation.
+ * \retval #PSA_ERROR_NOT_PERMITTED
+ *         The #PSA_KEY_DERIVATION_INPUT_SECRET or
+ *         #PSA_KEY_DERIVATION_INPUT_PASSWORD input was not provided through a
+ *         key; or one of the inputs was a key whose policy didn't allow
+ *         #PSA_KEY_USAGE_DERIVE.
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
+ * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
+ * \retval #PSA_ERROR_DATA_INVALID \emptydescription
+ * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
+ * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The operation state is not valid (it must be active and completed
+ *         all required input steps), or the library has not been previously
+ *         initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_key_derivation_output_key_ext(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length,
+    mbedtls_svc_key_id_t *key);
+
 /** Compare output data from a key derivation operation to an expected value.
  *
  * This function calculates output bytes from a key derivation algorithm and
@@ -3835,7 +3921,8 @@
  *                          and the permitted algorithm must match the
  *                          operation. The value of this key was likely
  *                          computed by a previous call to
- *                          psa_key_derivation_output_key().
+ *                          psa_key_derivation_output_key() or
+ *                          psa_key_derivation_output_key_ext().
  *
  * \retval #PSA_SUCCESS \emptydescription
  * \retval #PSA_ERROR_INVALID_SIGNATURE
@@ -4003,6 +4090,10 @@
  *   between 2^{n-1} and 2^n where n is the bit size specified in the
  *   attributes.
  *
+ * \note This function is equivalent to calling psa_generate_key_ext()
+ *       with the production parameters #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *       and `params_data_length == 0` (i.e. `params->data` is empty).
+ *
  * \param[in] attributes    The attributes for the new key.
  * \param[out] key          On success, an identifier for the newly created
  *                          key. For persistent keys, this is the key
@@ -4035,6 +4126,60 @@
 psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
                               mbedtls_svc_key_id_t *key);
 
+/**
+ * \brief Generate a key or key pair using custom production parameters.
+ *
+ * See the description of psa_generate_key() for the operation of this
+ * function with the default production parameters. In addition, this function
+ * supports the following production customizations, described in more detail
+ * in the documentation of ::psa_key_production_parameters_t:
+ *
+ * - RSA keys: generation with a custom public exponent.
+ *
+ * \note This function is experimental and may change in future minor
+ *       versions of Mbed TLS.
+ *
+ * \param[in] attributes    The attributes for the new key.
+ * \param[in] params        Customization parameters for the key generation.
+ *                          When this is #PSA_KEY_PRODUCTION_PARAMETERS_INIT
+ *                          with \p params_data_length = 0,
+ *                          this function is equivalent to
+ *                          psa_generate_key().
+ * \param params_data_length
+ *                          Length of `params->data` in bytes.
+ * \param[out] key          On success, an identifier for the newly created
+ *                          key. For persistent keys, this is the key
+ *                          identifier defined in \p attributes.
+ *                          \c 0 on failure.
+ *
+ * \retval #PSA_SUCCESS
+ *         Success.
+ *         If the key is persistent, the key material and the key's metadata
+ *         have been saved to persistent storage.
+ * \retval #PSA_ERROR_ALREADY_EXISTS
+ *         This is an attempt to create a persistent key, and there is
+ *         already a persistent key with the given identifier.
+ * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
+ * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_ENTROPY \emptydescription
+ * \retval #PSA_ERROR_COMMUNICATION_FAILURE \emptydescription
+ * \retval #PSA_ERROR_HARDWARE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_CORRUPTION_DETECTED \emptydescription
+ * \retval #PSA_ERROR_INSUFFICIENT_STORAGE \emptydescription
+ * \retval #PSA_ERROR_DATA_INVALID \emptydescription
+ * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
+ * \retval #PSA_ERROR_STORAGE_FAILURE \emptydescription
+ * \retval #PSA_ERROR_BAD_STATE
+ *         The library has not been previously initialized by psa_crypto_init().
+ *         It is implementation-dependent whether a failure to initialize
+ *         results in this error code.
+ */
+psa_status_t psa_generate_key_ext(const psa_key_attributes_t *attributes,
+                                  const psa_key_production_parameters_t *params,
+                                  size_t params_data_length,
+                                  mbedtls_svc_key_id_t *key);
+
 /**@}*/
 
 /** \defgroup interruptible_hash Interruptible sign/verify hash
diff --git a/include/psa/crypto_compat.h b/include/psa/crypto_compat.h
index f896fae..2a226c0 100644
--- a/include/psa/crypto_compat.h
+++ b/include/psa/crypto_compat.h
@@ -146,6 +146,83 @@
  */
 psa_status_t psa_close_key(psa_key_handle_t handle);
 
+/** \addtogroup attributes
+ * @{
+ */
+
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
+/** Custom Diffie-Hellman group.
+ *
+ * Mbed TLS does not support custom DH groups.
+ *
+ * \deprecated This value is not useful, so this macro will be removed in
+ *             a future version of the library.
+ */
+#define PSA_DH_FAMILY_CUSTOM                                            \
+    ((psa_dh_family_t) MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(0x7e))
+
+/**
+ * \brief Set domain parameters for a key.
+ *
+ * \deprecated  Mbed TLS no longer supports any domain parameters.
+ *              This function only does the equivalent of
+ *              psa_set_key_type() and will be removed in a future version
+ *              of the library.
+ *
+ * \param[in,out] attributes    Attribute structure where \p type will be set.
+ * \param type                  Key type (a \c PSA_KEY_TYPE_XXX value).
+ * \param[in] data              Ignored.
+ * \param data_length           Must be 0.
+ *
+ * \retval #PSA_SUCCESS \emptydescription
+ * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
+ */
+static inline psa_status_t MBEDTLS_DEPRECATED psa_set_key_domain_parameters(
+    psa_key_attributes_t *attributes,
+    psa_key_type_t type, const uint8_t *data, size_t data_length)
+{
+    (void) data;
+    if (data_length != 0) {
+        return PSA_ERROR_NOT_SUPPORTED;
+    }
+    psa_set_key_type(attributes, type);
+    return PSA_SUCCESS;
+}
+
+/**
+ * \brief Get domain parameters for a key.
+ *
+ * \deprecated  Mbed TLS no longer supports any domain parameters.
+ *              This function alwaya has an empty output and will be
+ *              removed in a future version of the library.
+
+ * \param[in] attributes        Ignored.
+ * \param[out] data             Ignored.
+ * \param data_size             Ignored.
+ * \param[out] data_length      Set to 0.
+ *
+ * \retval #PSA_SUCCESS \emptydescription
+ */
+static inline psa_status_t MBEDTLS_DEPRECATED psa_get_key_domain_parameters(
+    const psa_key_attributes_t *attributes,
+    uint8_t *data, size_t data_size, size_t *data_length)
+{
+    (void) attributes;
+    (void) data;
+    (void) data_size;
+    *data_length = 0;
+    return PSA_SUCCESS;
+}
+
+/** Safe output buffer size for psa_get_key_domain_parameters().
+ *
+ */
+#define PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits)      \
+    MBEDTLS_DEPRECATED_NUMERIC_CONSTANT(1u)
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
+
+/**@}*/
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index 10a23f6..6ed1f6c 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -59,7 +59,7 @@
     psa_key_attributes_t *attributes,
     psa_algorithm_t alg2)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2) = alg2;
+    attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2) = alg2;
 }
 
 /** Retrieve the enrollment algorithm policy from key attributes.
@@ -71,7 +71,7 @@
 static inline psa_algorithm_t psa_get_key_enrollment_algorithm(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2);
+    return attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2);
 }
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@@ -129,7 +129,7 @@
     psa_key_attributes_t *attributes,
     psa_key_slot_number_t slot_number)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) |= MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
+    attributes->MBEDTLS_PRIVATE(has_slot_number) = 1;
     attributes->MBEDTLS_PRIVATE(slot_number) = slot_number;
 }
 
@@ -142,8 +142,7 @@
 static inline void psa_clear_key_slot_number(
     psa_key_attributes_t *attributes)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) &=
-        ~MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
+    attributes->MBEDTLS_PRIVATE(has_slot_number) = 0;
 }
 
 /** Register a key that is already present in a secure element.
@@ -409,140 +408,11 @@
  * @{
  */
 
-/** Custom Diffie-Hellman group.
- *
- * For keys of type #PSA_KEY_TYPE_DH_PUBLIC_KEY(#PSA_DH_FAMILY_CUSTOM) or
- * #PSA_KEY_TYPE_DH_KEY_PAIR(#PSA_DH_FAMILY_CUSTOM), the group data comes
- * from domain parameters set by psa_set_key_domain_parameters().
- */
-#define PSA_DH_FAMILY_CUSTOM             ((psa_dh_family_t) 0x7e)
-
 /** PAKE operation stages. */
 #define PSA_PAKE_OPERATION_STAGE_SETUP 0
 #define PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS 1
 #define PSA_PAKE_OPERATION_STAGE_COMPUTATION 2
 
-/**
- * \brief Set domain parameters for a key.
- *
- * Some key types require additional domain parameters in addition to
- * the key type identifier and the key size. Use this function instead
- * of psa_set_key_type() when you need to specify domain parameters.
- *
- * The format for the required domain parameters varies based on the key type.
- * Mbed TLS supports the following key type with domain parameters:
- *
- * - For RSA keys (#PSA_KEY_TYPE_RSA_PUBLIC_KEY or #PSA_KEY_TYPE_RSA_KEY_PAIR),
- *   the domain parameter data consists of the public exponent,
- *   represented as a big-endian integer with no leading zeros.
- *   This information is used when generating an RSA key pair.
- *   When importing a key, the public exponent is read from the imported
- *   key data and the exponent recorded in the attribute structure is ignored.
- *   As an exception, the public exponent 65537 is represented by an empty
- *   byte string.
- *
- * \note This function may allocate memory or other resources.
- *       Once you have called this function on an attribute structure,
- *       you must call psa_reset_key_attributes() to free these resources.
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \note Due to an implementation limitation, domain parameters are ignored
- *       for keys that are managed by a driver.
- *
- * \param[in,out] attributes    Attribute structure where the specified domain
- *                              parameters will be stored.
- *                              If this function fails, the content of
- *                              \p attributes is not modified.
- * \param type                  Key type (a \c PSA_KEY_TYPE_XXX value).
- * \param[in] data              Buffer containing the key domain parameters.
- *                              The content of this buffer is interpreted
- *                              according to \p type as described above.
- * \param data_length           Size of the \p data buffer in bytes.
- *
- * \retval #PSA_SUCCESS \emptydescription
- * \retval #PSA_ERROR_INVALID_ARGUMENT \emptydescription
- * \retval #PSA_ERROR_NOT_SUPPORTED \emptydescription
- * \retval #PSA_ERROR_INSUFFICIENT_MEMORY \emptydescription
- */
-#if !defined(PSA_SET_KEY_DOMAIN_PARAMETERS)
-#define PSA_SET_KEY_DOMAIN_PARAMETERS
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length);
-#endif /* PSA_SET_KEY_DOMAIN_PARAMETERS */
-
-/**
- * \brief Get domain parameters for a key.
- *
- * Get the domain parameters for a key with this function, if any. The format
- * of the domain parameters written to \p data is specified in the
- * documentation for psa_set_key_domain_parameters().
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \note Due to an implementation limitation, domain parameters are not
- *       supported with keys that are managed by a driver.
- *
- * \param[in] attributes        The key attribute structure to query.
- * \param[out] data             On success, the key domain parameters.
- * \param data_size             Size of the \p data buffer in bytes.
- *                              The buffer is guaranteed to be large
- *                              enough if its size in bytes is at least
- *                              the value given by
- *                              PSA_KEY_DOMAIN_PARAMETERS_SIZE().
- * \param[out] data_length      On success, the number of bytes
- *                              that make up the key domain parameters data.
- *
- * \retval #PSA_SUCCESS \emptydescription
- * \retval #PSA_ERROR_BUFFER_TOO_SMALL \emptydescription
- * \retval #PSA_ERROR_NOT_SUPPORTED
- *         The key is managed by a driver.
- */
-psa_status_t psa_get_key_domain_parameters(
-    const psa_key_attributes_t *attributes,
-    uint8_t *data,
-    size_t data_size,
-    size_t *data_length);
-
-/** Safe output buffer size for psa_get_key_domain_parameters().
- *
- * This macro returns a compile-time constant if its arguments are
- * compile-time constants.
- *
- * \warning This function may call its arguments multiple times or
- *          zero times, so you should not pass arguments that contain
- *          side effects.
- *
- * \note This is an experimental extension to the interface. It may change
- *       in future versions of the library.
- *
- * \param key_type  A supported key type.
- * \param key_bits  The size of the key in bits.
- *
- * \return If the parameters are valid and supported, return
- *         a buffer size in bytes that guarantees that
- *         psa_get_key_domain_parameters() will not fail with
- *         #PSA_ERROR_BUFFER_TOO_SMALL.
- *         If the parameters are a valid combination that is not supported
- *         by the implementation, this macro shall return either a
- *         sensible size or 0.
- *         If the parameters are not valid, the
- *         return value is unspecified.
- */
-#define PSA_KEY_DOMAIN_PARAMETERS_SIZE(key_type, key_bits)              \
-    (PSA_KEY_TYPE_IS_RSA(key_type) ? sizeof(int) :                      \
-     PSA_KEY_TYPE_IS_DH(key_type) ? PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \
-     PSA_KEY_TYPE_IS_DSA(key_type) ? PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits) : \
-     0)
-#define PSA_DH_KEY_DOMAIN_PARAMETERS_SIZE(key_bits)     \
-    (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 3 /*without optional parts*/)
-#define PSA_DSA_KEY_DOMAIN_PARAMETERS_SIZE(key_bits)    \
-    (4 + (PSA_BITS_TO_BYTES(key_bits) + 5) * 2 /*p, g*/ + 34 /*q*/)
-
 /**@}*/
 
 
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 34d072b..3913551 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -223,6 +223,22 @@
     return v;
 }
 
+struct psa_key_production_parameters_s {
+    /* Future versions may add other fields in this structure. */
+    uint32_t flags;
+    uint8_t data[];
+};
+
+/** The default production parameters for key generation or key derivation.
+ *
+ * Calling psa_generate_key_ext() or psa_key_derivation_output_key_ext()
+ * with `params=PSA_KEY_PRODUCTION_PARAMETERS_INIT` and
+ * `params_data_length == 0` is equivalent to
+ * calling psa_generate_key() or psa_key_derivation_output_key()
+ * respectively.
+ */
+#define PSA_KEY_PRODUCTION_PARAMETERS_INIT { 0 }
+
 struct psa_key_policy_s {
     psa_key_usage_t MBEDTLS_PRIVATE(usage);
     psa_algorithm_t MBEDTLS_PRIVATE(alg);
@@ -250,35 +266,15 @@
  * conditionals. */
 #define PSA_MAX_KEY_BITS 0xfff8
 
-/** A mask of flags that can be stored in key attributes.
- *
- * This type is also used internally to store flags in slots. Internal
- * flags are defined in library/psa_crypto_core.h. Internal flags may have
- * the same value as external flags if they are properly handled during
- * key creation and in psa_get_key_attributes.
- */
-typedef uint16_t psa_key_attributes_flag_t;
-
-#define MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER     \
-    ((psa_key_attributes_flag_t) 0x0001)
-
-/* A mask of key attribute flags used externally only.
- * Only meant for internal checks inside the library. */
-#define MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY (      \
-        MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER |    \
-        0)
-
-/* A mask of key attribute flags used both internally and externally.
- * Currently there aren't any. */
-#define MBEDTLS_PSA_KA_MASK_DUAL_USE (          \
-        0)
-
-typedef struct {
+struct psa_key_attributes_s {
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
+    psa_key_slot_number_t MBEDTLS_PRIVATE(slot_number);
+    int MBEDTLS_PRIVATE(has_slot_number);
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
     psa_key_type_t MBEDTLS_PRIVATE(type);
     psa_key_bits_t MBEDTLS_PRIVATE(bits);
     psa_key_lifetime_t MBEDTLS_PRIVATE(lifetime);
     psa_key_policy_t MBEDTLS_PRIVATE(policy);
-    psa_key_attributes_flag_t MBEDTLS_PRIVATE(flags);
     /* This type has a different layout in the client view wrt the
      * service view of the key id, i.e. in service view usually is
      * expected to have MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER defined
@@ -291,45 +287,18 @@
      * struct
      */
     mbedtls_svc_key_id_t MBEDTLS_PRIVATE(id);
-} psa_core_key_attributes_t;
-
-#define PSA_CORE_KEY_ATTRIBUTES_INIT { PSA_KEY_TYPE_NONE, 0,            \
-                                       PSA_KEY_LIFETIME_VOLATILE,       \
-                                       PSA_KEY_POLICY_INIT, 0,          \
-                                       MBEDTLS_SVC_KEY_ID_INIT }
-
-struct psa_key_attributes_s {
-#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
-    psa_key_slot_number_t MBEDTLS_PRIVATE(slot_number);
-#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
-    /* Unlike normal buffers, there are three cases for domain_parameters
-     * and domain_parameters_size:
-     * - domain_parameters_size == SIZE_MAX && domain_parameters == NULL:
-     *   Access to domain parameters is not supported for this key.
-     *   This is a hack which should not exist, intended for keys managed
-     *   by a driver, because drivers don't support domain parameters.
-     * - domain_parameters_size == 0 && domain_parameters == NULL:
-     *   The domain parameters are empty.
-     * - domain_parameters_size > 0 &&
-     *   domain_parameters == valid pointer to domain_parameters_size bytes:
-     *   The domain parameters are non-empty.
-     */
-    void *MBEDTLS_PRIVATE(domain_parameters);
-    size_t MBEDTLS_PRIVATE(domain_parameters_size);
-    /* With client/service separation, struct psa_key_attributes_s is
-     * marshalled through a transport channel between the client and
-     * service side implementation of the PSA Crypto APIs, thus having
-     * the mbedtls_svc_key_id_t id as the last field of this structure
-     * allows for a more efficient marshalling/unmarshalling of parameters
-     */
-    psa_core_key_attributes_t MBEDTLS_PRIVATE(core);
 };
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
-#define PSA_KEY_ATTRIBUTES_INIT { 0, NULL, 0, PSA_CORE_KEY_ATTRIBUTES_INIT }
+#define PSA_KEY_ATTRIBUTES_MAYBE_SLOT_NUMBER 0, 0,
 #else
-#define PSA_KEY_ATTRIBUTES_INIT { NULL, 0, PSA_CORE_KEY_ATTRIBUTES_INIT }
+#define PSA_KEY_ATTRIBUTES_MAYBE_SLOT_NUMBER
 #endif
+#define PSA_KEY_ATTRIBUTES_INIT { PSA_KEY_ATTRIBUTES_MAYBE_SLOT_NUMBER \
+                                      PSA_KEY_TYPE_NONE, 0,            \
+                                      PSA_KEY_LIFETIME_VOLATILE,       \
+                                      PSA_KEY_POLICY_INIT,             \
+                                      MBEDTLS_SVC_KEY_ID_INIT }
 
 static inline struct psa_key_attributes_s psa_key_attributes_init(void)
 {
@@ -340,12 +309,12 @@
 static inline void psa_set_key_id(psa_key_attributes_t *attributes,
                                   mbedtls_svc_key_id_t key)
 {
-    psa_key_lifetime_t lifetime = attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime);
+    psa_key_lifetime_t lifetime = attributes->MBEDTLS_PRIVATE(lifetime);
 
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = key;
+    attributes->MBEDTLS_PRIVATE(id) = key;
 
     if (PSA_KEY_LIFETIME_IS_VOLATILE(lifetime)) {
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) =
+        attributes->MBEDTLS_PRIVATE(lifetime) =
             PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
                 PSA_KEY_LIFETIME_PERSISTENT,
                 PSA_KEY_LIFETIME_GET_LOCATION(lifetime));
@@ -355,26 +324,26 @@
 static inline mbedtls_svc_key_id_t psa_get_key_id(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id);
+    return attributes->MBEDTLS_PRIVATE(id);
 }
 
 #ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
 static inline void mbedtls_set_key_owner_id(psa_key_attributes_t *attributes,
                                             mbedtls_key_owner_id_t owner)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(owner) = owner;
+    attributes->MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(owner) = owner;
 }
 #endif
 
 static inline void psa_set_key_lifetime(psa_key_attributes_t *attributes,
                                         psa_key_lifetime_t lifetime)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) = lifetime;
+    attributes->MBEDTLS_PRIVATE(lifetime) = lifetime;
     if (PSA_KEY_LIFETIME_IS_VOLATILE(lifetime)) {
 #ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(key_id) = 0;
+        attributes->MBEDTLS_PRIVATE(id).MBEDTLS_PRIVATE(key_id) = 0;
 #else
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = 0;
+        attributes->MBEDTLS_PRIVATE(id) = 0;
 #endif
     }
 }
@@ -382,7 +351,7 @@
 static inline psa_key_lifetime_t psa_get_key_lifetime(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime);
+    return attributes->MBEDTLS_PRIVATE(lifetime);
 }
 
 static inline void psa_extend_key_usage_flags(psa_key_usage_t *usage_flags)
@@ -400,72 +369,53 @@
                                            psa_key_usage_t usage_flags)
 {
     psa_extend_key_usage_flags(&usage_flags);
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage) = usage_flags;
+    attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage) = usage_flags;
 }
 
 static inline psa_key_usage_t psa_get_key_usage_flags(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage);
+    return attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage);
 }
 
 static inline void psa_set_key_algorithm(psa_key_attributes_t *attributes,
                                          psa_algorithm_t alg)
 {
-    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg) = alg;
+    attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg) = alg;
 }
 
 static inline psa_algorithm_t psa_get_key_algorithm(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg);
+    return attributes->MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg);
 }
 
-/* This function is declared in crypto_extra.h, which comes after this
- * header file, but we need the function here, so repeat the declaration. */
-#if !defined(PSA_SET_KEY_DOMAIN_PARAMETERS)
-#define PSA_SET_KEY_DOMAIN_PARAMETERS
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length);
-#endif /* PSA_SET_KEY_DOMAIN_PARAMETERS */
-
 static inline void psa_set_key_type(psa_key_attributes_t *attributes,
                                     psa_key_type_t type)
 {
-    if (attributes->MBEDTLS_PRIVATE(domain_parameters) == NULL) {
-        /* Common case: quick path */
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type) = type;
-    } else {
-        /* Call the bigger function to free the old domain parameters.
-         * Ignore any errors which may arise due to type requiring
-         * non-default domain parameters, since this function can't
-         * report errors. */
-        (void) psa_set_key_domain_parameters(attributes, type, NULL, 0);
-    }
+    attributes->MBEDTLS_PRIVATE(type) = type;
 }
 
 static inline psa_key_type_t psa_get_key_type(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type);
+    return attributes->MBEDTLS_PRIVATE(type);
 }
 
 static inline void psa_set_key_bits(psa_key_attributes_t *attributes,
                                     size_t bits)
 {
     if (bits > PSA_MAX_KEY_BITS) {
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = PSA_KEY_BITS_TOO_LARGE;
+        attributes->MBEDTLS_PRIVATE(bits) = PSA_KEY_BITS_TOO_LARGE;
     } else {
-        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = (psa_key_bits_t) bits;
+        attributes->MBEDTLS_PRIVATE(bits) = (psa_key_bits_t) bits;
     }
 }
 
 static inline size_t psa_get_key_bits(
     const psa_key_attributes_t *attributes)
 {
-    return attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits);
+    return attributes->MBEDTLS_PRIVATE(bits);
 }
 
 /**
diff --git a/include/psa/crypto_types.h b/include/psa/crypto_types.h
index e2ebd8a..31ea686 100644
--- a/include/psa/crypto_types.h
+++ b/include/psa/crypto_types.h
@@ -455,6 +455,30 @@
  */
 typedef uint16_t psa_key_derivation_step_t;
 
+/** \brief Custom parameters for key generation or key derivation.
+ *
+ * This is a structure type with at least the following fields:
+ *
+ * - \c flags: an unsigned integer type. 0 for the default production parameters.
+ * - \c data: a flexible array of bytes.
+ *
+ * The interpretation of this structure depend on the type of the
+ * created key.
+ *
+ * - #PSA_KEY_TYPE_RSA_KEY_PAIR:
+ *     - \c flags: must be 0.
+ *     - \c data: the public exponent, in little-endian order.
+ *       This must be an odd integer and must not be 1.
+ *       Implementations must support 65535, should support 3 and may
+ *       support other values.
+ *       When not using a driver, Mbed TLS supports values up to \c INT_MAX.
+ *       If this is empty or if the custom production parameters are omitted
+ *       altogether, the default value 65537 is used.
+ * - Other key types: reserved for future use. \c flags must be 0.
+ *
+ */
+typedef struct psa_key_production_parameters_s psa_key_production_parameters_t;
+
 /**@}*/
 
 #endif /* PSA_CRYPTO_TYPES_H */
diff --git a/library/ecdh.c b/library/ecdh.c
index 52b1617..b276c6a 100644
--- a/library/ecdh.c
+++ b/library/ecdh.c
@@ -144,6 +144,15 @@
 #endif
 }
 
+mbedtls_ecp_group_id mbedtls_ecdh_get_grp_id(mbedtls_ecdh_context *ctx)
+{
+#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
+    return ctx->MBEDTLS_PRIVATE(grp).id;
+#else
+    return ctx->MBEDTLS_PRIVATE(grp_id);
+#endif
+}
+
 /*
  * Initialize context
  */
diff --git a/library/ecp.c b/library/ecp.c
index 758d54b..427059b 100644
--- a/library/ecp.c
+++ b/library/ecp.c
@@ -3302,10 +3302,11 @@
 /*
  * Write a private key.
  */
+#if !defined MBEDTLS_DEPRECATED_REMOVED
 int mbedtls_ecp_write_key(mbedtls_ecp_keypair *key,
                           unsigned char *buf, size_t buflen)
 {
-    int ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
 #if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
     if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
@@ -3332,6 +3333,39 @@
 
     return ret;
 }
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
+
+int mbedtls_ecp_write_key_ext(const mbedtls_ecp_keypair *key,
+                              size_t *olen, unsigned char *buf, size_t buflen)
+{
+    size_t len = (key->grp.nbits + 7) / 8;
+    if (len > buflen) {
+        /* For robustness, ensure *olen <= buflen even on error. */
+        *olen = 0;
+        return MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
+    }
+    *olen = len;
+
+    /* Private key not set */
+    if (key->d.n == 0) {
+        return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
+    }
+
+#if defined(MBEDTLS_ECP_MONTGOMERY_ENABLED)
+    if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_MONTGOMERY) {
+        return mbedtls_mpi_write_binary_le(&key->d, buf, len);
+    }
+#endif
+
+#if defined(MBEDTLS_ECP_SHORT_WEIERSTRASS_ENABLED)
+    if (mbedtls_ecp_get_type(&key->grp) == MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS) {
+        return mbedtls_mpi_write_binary(&key->d, buf, len);
+    }
+#endif
+
+    /* Private key set but no recognized curve type? This shouldn't happen. */
+    return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+}
 
 /*
  * Write a public key.
diff --git a/library/pk.c b/library/pk.c
index 1ded487..003ef4a 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -675,10 +675,7 @@
 #if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
             psa_ecc_family_t from_family = pk->ec_family;
 #else /* MBEDTLS_PK_USE_PSA_EC_DATA */
-            /* We're only reading the key, but mbedtls_ecp_write_key()
-             * is missing a const annotation on its key parameter, so
-             * we need the non-const accessor here. */
-            mbedtls_ecp_keypair *ec = mbedtls_pk_ec_rw(*pk);
+            const mbedtls_ecp_keypair *ec = mbedtls_pk_ec_ro(*pk);
             size_t from_bits = 0;
             psa_ecc_family_t from_family = mbedtls_ecc_group_to_psa(ec->grp.id,
                                                                     &from_bits);
@@ -704,12 +701,9 @@
                 return MBEDTLS_ERR_PK_TYPE_MISMATCH;
             }
             unsigned char key_buffer[PSA_BITS_TO_BYTES(PSA_VENDOR_ECC_MAX_CURVE_BITS)];
-            /* Make sure to pass the exact key length to
-             * mbedtls_ecp_write_key(), because it writes Montgomery keys
-             * at the start of the buffer but Weierstrass keys at the
-             * end of the buffer. */
-            size_t key_length = PSA_BITS_TO_BYTES(ec->grp.nbits);
-            int ret = mbedtls_ecp_write_key(ec, key_buffer, key_length);
+            size_t key_length = 0;
+            int ret = mbedtls_ecp_write_key_ext(ec, &key_length,
+                                                key_buffer, sizeof(key_buffer));
             if (ret < 0) {
                 return ret;
             }
@@ -1188,9 +1182,32 @@
     }
 
     if (mbedtls_pk_get_type(ctx) == MBEDTLS_PK_OPAQUE) {
+        psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+        psa_algorithm_t psa_alg, psa_enrollment_alg, sign_alg;
         psa_status_t status;
 
-        status = psa_sign_hash(ctx->priv_id, PSA_ALG_RSA_PSS(psa_md_alg),
+        status = psa_get_key_attributes(ctx->priv_id, &key_attr);
+        if (status != PSA_SUCCESS) {
+            return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
+        }
+        psa_alg = psa_get_key_algorithm(&key_attr);
+        psa_enrollment_alg = psa_get_key_enrollment_algorithm(&key_attr);
+        psa_reset_key_attributes(&key_attr);
+
+        /* Since we're PK type is MBEDTLS_PK_RSASSA_PSS at least one between
+         * alg and enrollment alg should be of type RSA_PSS. */
+        if (PSA_ALG_IS_RSA_PSS(psa_alg)) {
+            sign_alg = psa_alg;
+        } else if (PSA_ALG_IS_RSA_PSS(psa_enrollment_alg)) {
+            sign_alg = psa_enrollment_alg;
+        } else {
+            /* The opaque key has no RSA PSS algorithm associated. */
+            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+        }
+        /* Adjust the hashing algorithm. */
+        sign_alg = (sign_alg & ~PSA_ALG_HASH_MASK) | PSA_ALG_GET_HASH(psa_md_alg);
+
+        status = psa_sign_hash(ctx->priv_id, sign_alg,
                                hash, hash_len,
                                sig, sig_size, sig_len);
         return PSA_PK_RSA_TO_MBEDTLS_ERR(status);
@@ -1357,124 +1374,4 @@
     return ctx->pk_info->type;
 }
 
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-/*
- * Load the key to a PSA key slot,
- * then turn the PK context into a wrapper for that key slot.
- *
- * Currently only works for EC & RSA private keys.
- */
-int mbedtls_pk_wrap_as_opaque(mbedtls_pk_context *pk,
-                              mbedtls_svc_key_id_t *key,
-                              psa_algorithm_t alg,
-                              psa_key_usage_t usage,
-                              psa_algorithm_t alg2)
-{
-#if !defined(MBEDTLS_PK_HAVE_ECC_KEYS) && !defined(MBEDTLS_RSA_C)
-    ((void) pk);
-    ((void) key);
-    ((void) alg);
-    ((void) usage);
-    ((void) alg2);
-#else /* !MBEDTLS_PK_HAVE_ECC_KEYS && !MBEDTLS_RSA_C */
-#if defined(MBEDTLS_PK_HAVE_ECC_KEYS)
-    if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_ECKEY) {
-        size_t d_len;
-        psa_ecc_family_t curve_id;
-        psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-        psa_key_type_t key_type;
-        size_t bits;
-        psa_status_t status;
-
-        /* export the private key material in the format PSA wants */
-#if defined(MBEDTLS_PK_USE_PSA_EC_DATA)
-        unsigned char d[MBEDTLS_PSA_MAX_EC_KEY_PAIR_LENGTH];
-        status = psa_export_key(pk->priv_id, d, sizeof(d), &d_len);
-        if (status != PSA_SUCCESS) {
-            return psa_pk_status_to_mbedtls(status);
-        }
-
-        curve_id = pk->ec_family;
-        bits = pk->ec_bits;
-#else /* MBEDTLS_PK_USE_PSA_EC_DATA */
-        unsigned char d[MBEDTLS_ECP_MAX_BYTES];
-        mbedtls_ecp_keypair *ec = mbedtls_pk_ec_rw(*pk);
-        int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
-        d_len = PSA_BITS_TO_BYTES(ec->grp.nbits);
-        if ((ret = mbedtls_ecp_write_key(ec, d, d_len)) != 0) {
-            return ret;
-        }
-
-        curve_id = mbedtls_ecc_group_to_psa(ec->grp.id, &bits);
-#endif /* MBEDTLS_PK_USE_PSA_EC_DATA */
-        key_type = PSA_KEY_TYPE_ECC_KEY_PAIR(curve_id);
-
-        /* prepare the key attributes */
-        psa_set_key_type(&attributes, key_type);
-        psa_set_key_bits(&attributes, bits);
-        psa_set_key_usage_flags(&attributes, usage);
-        psa_set_key_algorithm(&attributes, alg);
-        if (alg2 != PSA_ALG_NONE) {
-            psa_set_key_enrollment_algorithm(&attributes, alg2);
-        }
-
-        /* 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 PSA_PK_TO_MBEDTLS_ERR(status);
-        }
-
-        /* make PK context wrap the key slot */
-        mbedtls_pk_free(pk);
-        mbedtls_pk_init(pk);
-
-        return mbedtls_pk_setup_opaque(pk, *key);
-    } else
-#endif /* MBEDTLS_PK_HAVE_ECC_KEYS */
-#if defined(MBEDTLS_RSA_C)
-    if (mbedtls_pk_get_type(pk) == MBEDTLS_PK_RSA) {
-        unsigned char buf[MBEDTLS_PK_RSA_PRV_DER_MAX_BYTES];
-        psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-        int key_len;
-        psa_status_t status;
-
-        /* export the private key material in the format PSA wants */
-        key_len = mbedtls_pk_write_key_der(pk, buf, sizeof(buf));
-        if (key_len <= 0) {
-            return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
-        }
-
-        /* prepare the key attributes */
-        psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
-        psa_set_key_bits(&attributes, mbedtls_pk_get_bitlen(pk));
-        psa_set_key_usage_flags(&attributes, usage);
-        psa_set_key_algorithm(&attributes, alg);
-        if (alg2 != PSA_ALG_NONE) {
-            psa_set_key_enrollment_algorithm(&attributes, alg2);
-        }
-
-        /* import private key into PSA */
-        status = psa_import_key(&attributes,
-                                buf + sizeof(buf) - key_len,
-                                key_len, key);
-
-        mbedtls_platform_zeroize(buf, sizeof(buf));
-
-        if (status != PSA_SUCCESS) {
-            return PSA_PK_TO_MBEDTLS_ERR(status);
-        }
-
-        /* make PK context wrap the key slot */
-        mbedtls_pk_free(pk);
-        mbedtls_pk_init(pk);
-
-        return mbedtls_pk_setup_opaque(pk, *key);
-    } else
-#endif /* MBEDTLS_RSA_C */
-#endif /* !MBEDTLS_PK_HAVE_ECC_KEYS && !MBEDTLS_RSA_C */
-    return MBEDTLS_ERR_PK_TYPE_MISMATCH;
-}
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
 #endif /* MBEDTLS_PK_C */
diff --git a/library/pk_wrap.c b/library/pk_wrap.c
index b472cfb..846175e 100644
--- a/library/pk_wrap.c
+++ b/library/pk_wrap.c
@@ -306,7 +306,7 @@
     psa_set_key_type(&attributes, PSA_KEY_TYPE_RSA_KEY_PAIR);
     psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_DECRYPT);
     if (mbedtls_rsa_get_padding_mode(rsa) == MBEDTLS_RSA_PKCS_V21) {
-        psa_md_alg = mbedtls_md_psa_alg_from_type(mbedtls_rsa_get_md_alg(rsa));
+        psa_md_alg = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) mbedtls_rsa_get_md_alg(rsa));
         decrypt_alg = PSA_ALG_RSA_OAEP(psa_md_alg);
     } else {
         decrypt_alg = PSA_ALG_RSA_PKCS1V15_CRYPT;
@@ -388,7 +388,7 @@
 
     psa_set_key_usage_flags(&attributes, PSA_KEY_USAGE_ENCRYPT);
     if (mbedtls_rsa_get_padding_mode(rsa) == MBEDTLS_RSA_PKCS_V21) {
-        psa_md_alg = mbedtls_md_psa_alg_from_type(mbedtls_rsa_get_md_alg(rsa));
+        psa_md_alg = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) mbedtls_rsa_get_md_alg(rsa));
         psa_set_key_algorithm(&attributes, PSA_ALG_RSA_OAEP(psa_md_alg));
     } else {
         psa_set_key_algorithm(&attributes, PSA_ALG_RSA_PKCS1V15_CRYPT);
diff --git a/library/pkwrite.c b/library/pkwrite.c
index b9ddcf1..5e009c5 100644
--- a/library/pkwrite.c
+++ b/library/pkwrite.c
@@ -202,7 +202,7 @@
         mbedtls_ecp_keypair *ec = mbedtls_pk_ec_rw(*pk);
         byte_length = (ec->grp.pbits + 7) / 8;
 
-        ret = mbedtls_ecp_write_key(ec, tmp, byte_length);
+        ret = mbedtls_ecp_write_key_ext(ec, &byte_length, tmp, sizeof(tmp));
         if (ret != 0) {
             goto exit;
         }
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index b86a4fc..31d340d 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -563,7 +563,7 @@
     size_t *key_buffer_length, size_t *bits)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_key_type_t type = attributes->core.type;
+    psa_key_type_t type = attributes->type;
 
     /* zero-length keys are never supported. */
     if (data_length == 0) {
@@ -573,7 +573,7 @@
     if (key_type_is_raw_bytes(type)) {
         *bits = PSA_BYTES_TO_BITS(data_length);
 
-        status = psa_validate_unstructured_key_bit_size(attributes->core.type,
+        status = psa_validate_unstructured_key_bit_size(attributes->type,
                                                         *bits);
         if (status != PSA_SUCCESS) {
             return status;
@@ -1206,58 +1206,12 @@
     return overall_status;
 }
 
-#if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-static psa_status_t psa_get_rsa_public_exponent(
-    const mbedtls_rsa_context *rsa,
-    psa_key_attributes_t *attributes)
-{
-    mbedtls_mpi mpi;
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    uint8_t *buffer = NULL;
-    size_t buflen;
-    mbedtls_mpi_init(&mpi);
-
-    ret = mbedtls_rsa_export(rsa, NULL, NULL, NULL, NULL, &mpi);
-    if (ret != 0) {
-        goto exit;
-    }
-    if (mbedtls_mpi_cmp_int(&mpi, 65537) == 0) {
-        /* It's the default value, which is reported as an empty string,
-         * so there's nothing to do. */
-        goto exit;
-    }
-
-    buflen = mbedtls_mpi_size(&mpi);
-    buffer = mbedtls_calloc(1, buflen);
-    if (buffer == NULL) {
-        ret = MBEDTLS_ERR_MPI_ALLOC_FAILED;
-        goto exit;
-    }
-    ret = mbedtls_mpi_write_binary(&mpi, buffer, buflen);
-    if (ret != 0) {
-        goto exit;
-    }
-    attributes->domain_parameters = buffer;
-    attributes->domain_parameters_size = buflen;
-
-exit:
-    mbedtls_mpi_free(&mpi);
-    if (ret != 0) {
-        mbedtls_free(buffer);
-    }
-    return mbedtls_to_psa_error(ret);
-}
-#endif /* defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-
 /** Retrieve all the publicly-accessible attributes of a key.
  */
 psa_status_t psa_get_key_attributes(mbedtls_svc_key_id_t key,
                                     psa_key_attributes_t *attributes)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
 
     psa_reset_key_attributes(attributes);
@@ -1267,9 +1221,7 @@
         return status;
     }
 
-    attributes->core = slot->attr;
-    attributes->core.flags &= (MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY |
-                               MBEDTLS_PSA_KA_MASK_DUAL_USE);
+    *attributes = slot->attr;
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     if (psa_get_se_driver_entry(slot->attr.lifetime) != NULL) {
@@ -1278,55 +1230,7 @@
     }
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
 
-    switch (slot->attr.type) {
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-        case PSA_KEY_TYPE_RSA_KEY_PAIR:
-        case PSA_KEY_TYPE_RSA_PUBLIC_KEY:
-            /* TODO: This is a temporary situation where domain parameters are deprecated,
-             * but we need it for namely generating an RSA key with a non-default exponent.
-             * This would be improved after https://github.com/Mbed-TLS/mbedtls/issues/6494.
-             */
-            if (!psa_key_lifetime_is_external(slot->attr.lifetime)) {
-                mbedtls_rsa_context *rsa = NULL;
-
-                status = mbedtls_psa_rsa_load_representation(
-                    slot->attr.type,
-                    slot->key.data,
-                    slot->key.bytes,
-                    &rsa);
-                if (status != PSA_SUCCESS) {
-                    break;
-                }
-
-                status = psa_get_rsa_public_exponent(rsa,
-                                                     attributes);
-                mbedtls_rsa_free(rsa);
-                mbedtls_free(rsa);
-            }
-            break;
-#else
-        case PSA_KEY_TYPE_RSA_KEY_PAIR:
-        case PSA_KEY_TYPE_RSA_PUBLIC_KEY:
-            attributes->domain_parameters = NULL;
-            attributes->domain_parameters_size = SIZE_MAX;
-            break;
-#endif /* (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-        default:
-            /* Nothing else to do. */
-            break;
-    }
-
-    if (status != PSA_SUCCESS) {
-        psa_reset_key_attributes(attributes);
-    }
-
-    unlock_status = psa_unregister_read_under_mutex(slot);
-
-    return (status == PSA_SUCCESS) ? unlock_status : status;
+    return psa_unregister_read_under_mutex(slot);
 }
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@@ -1334,7 +1238,7 @@
     const psa_key_attributes_t *attributes,
     psa_key_slot_number_t *slot_number)
 {
-    if (attributes->core.flags & MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER) {
+    if (attributes->has_slot_number) {
         *slot_number = attributes->slot_number;
         return PSA_SUCCESS;
     } else {
@@ -1364,7 +1268,7 @@
     const uint8_t *key_buffer, size_t key_buffer_size,
     uint8_t *data, size_t data_size, size_t *data_length)
 {
-    psa_key_type_t type = attributes->core.type;
+    psa_key_type_t type = attributes->type;
 
     if (key_type_is_raw_bytes(type) ||
         PSA_KEY_TYPE_IS_RSA(type)   ||
@@ -1413,10 +1317,7 @@
         return status;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = slot->attr
-    };
-    status = psa_driver_wrapper_export_key(&attributes,
+    status = psa_driver_wrapper_export_key(&slot->attr,
                                            slot->key.data, slot->key.bytes,
                                            data, data_size, data_length);
 
@@ -1433,7 +1334,7 @@
     size_t data_size,
     size_t *data_length)
 {
-    psa_key_type_t type = attributes->core.type;
+    psa_key_type_t type = attributes->type;
 
     if (PSA_KEY_TYPE_IS_PUBLIC_KEY(type) &&
         (PSA_KEY_TYPE_IS_RSA(type) || PSA_KEY_TYPE_IS_ECC(type) ||
@@ -1500,7 +1401,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
-    psa_key_attributes_t attributes;
 
     /* Reject a zero-length output buffer now, since this can never be a
      * valid key representation. This way we know that data must be a valid
@@ -1526,11 +1426,8 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
     status = psa_driver_wrapper_export_public_key(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         data, data_size, data_length);
 
 exit:
@@ -1539,16 +1436,6 @@
     return (status == PSA_SUCCESS) ? unlock_status : status;
 }
 
-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.
  *
  * This function only rejects invalid policies. It does not validate the
@@ -1614,7 +1501,7 @@
         }
     }
 
-    status = psa_validate_key_policy(&attributes->core.policy);
+    status = psa_validate_key_policy(&attributes->policy);
     if (status != PSA_SUCCESS) {
         return status;
     }
@@ -1627,12 +1514,6 @@
         return PSA_ERROR_NOT_SUPPORTED;
     }
 
-    /* Reject invalid flags. These should not be reachable through the API. */
-    if (attributes->core.flags & ~(MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY |
-                                   MBEDTLS_PSA_KA_MASK_DUAL_USE)) {
-        return PSA_ERROR_INVALID_ARGUMENT;
-    }
-
     return PSA_SUCCESS;
 }
 
@@ -1706,7 +1587,7 @@
      * volatile key identifier associated to the slot returned to contain its
      * definition. */
 
-    slot->attr = attributes->core;
+    slot->attr = *attributes;
     if (PSA_KEY_LIFETIME_IS_VOLATILE(slot->attr.lifetime)) {
 #if !defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER)
         slot->attr.id = volatile_key_id;
@@ -1715,13 +1596,6 @@
 #endif
     }
 
-    /* Erase external-only flags from the internal copy. To access
-     * external-only flags, query `attributes`. Thanks to the check
-     * in psa_validate_key_attributes(), this leaves the dual-use
-     * flags and any internal flag that psa_reserve_free_key_slot()
-     * may have set. */
-    slot->attr.flags &= ~MBEDTLS_PSA_KA_MASK_EXTERNAL_ONLY;
-
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     /* For a key in a secure element, we need to do three things
      * when creating or registering a persistent key:
@@ -1748,7 +1622,7 @@
             return status;
         }
 
-        if (!PSA_KEY_LIFETIME_IS_VOLATILE(attributes->core.lifetime)) {
+        if (!PSA_KEY_LIFETIME_IS_VOLATILE(attributes->lifetime)) {
             psa_crypto_prepare_transaction(PSA_CRYPTO_TRANSACTION_CREATE_KEY);
             psa_crypto_transaction.key.lifetime = slot->attr.lifetime;
             psa_crypto_transaction.key.slot = slot_number;
@@ -1948,65 +1822,14 @@
     const psa_key_slot_t *slot,
     const psa_key_attributes_t *attributes)
 {
-    if (attributes->core.type != 0) {
-        if (attributes->core.type != slot->attr.type) {
+    if (attributes->type != 0) {
+        if (attributes->type != slot->attr.type) {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
     }
 
-    if (attributes->domain_parameters_size != 0) {
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-        defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-        defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-        if (PSA_KEY_TYPE_IS_RSA(slot->attr.type)) {
-            mbedtls_rsa_context *rsa = NULL;
-            mbedtls_mpi actual, required;
-            int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
-            psa_status_t status = mbedtls_psa_rsa_load_representation(
-                slot->attr.type,
-                slot->key.data,
-                slot->key.bytes,
-                &rsa);
-            if (status != PSA_SUCCESS) {
-                return status;
-            }
-
-            mbedtls_mpi_init(&actual);
-            mbedtls_mpi_init(&required);
-            ret = mbedtls_rsa_export(rsa,
-                                     NULL, NULL, NULL, NULL, &actual);
-            mbedtls_rsa_free(rsa);
-            mbedtls_free(rsa);
-            if (ret != 0) {
-                goto rsa_exit;
-            }
-            ret = mbedtls_mpi_read_binary(&required,
-                                          attributes->domain_parameters,
-                                          attributes->domain_parameters_size);
-            if (ret != 0) {
-                goto rsa_exit;
-            }
-            if (mbedtls_mpi_cmp_mpi(&actual, &required) != 0) {
-                ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
-            }
-rsa_exit:
-            mbedtls_mpi_free(&actual);
-            mbedtls_mpi_free(&required);
-            if (ret != 0) {
-                return mbedtls_to_psa_error(ret);
-            }
-        } else
-#endif /* (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) &&
-        *  defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) ||
-        * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
-        {
-            return PSA_ERROR_INVALID_ARGUMENT;
-        }
-    }
-
-    if (attributes->core.bits != 0) {
-        if (attributes->core.bits != slot->attr.bits) {
+    if (attributes->bits != 0) {
+        if (attributes->bits != slot->attr.bits) {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
     }
@@ -2050,7 +1873,7 @@
      * with storage ( MBEDTLS_PSA_CRYPTO_SE_C ) ),we have to allocate a
      * buffer to hold the imported key material. */
     if (slot->key.data == NULL) {
-        if (psa_key_lifetime_is_external(attributes->core.lifetime)) {
+        if (psa_key_lifetime_is_external(attributes->lifetime)) {
             status = psa_driver_wrapper_get_key_buffer_size_from_key_data(
                 attributes, data, data_length, &storage_size);
             if (status != PSA_SUCCESS) {
@@ -2170,12 +1993,12 @@
      * equal to the ones of the source key. So it is safe to inherit
      * them from the source key now."
      * */
-    actual_attributes.core.bits = source_slot->attr.bits;
-    actual_attributes.core.type = source_slot->attr.type;
+    actual_attributes.bits = source_slot->attr.bits;
+    actual_attributes.type = source_slot->attr.type;
 
 
     status = psa_restrict_key_policy(source_slot->attr.type,
-                                     &actual_attributes.core.policy,
+                                     &actual_attributes.policy,
                                      &source_slot->attr.policy);
     if (status != PSA_SUCCESS) {
         goto exit;
@@ -2204,7 +2027,7 @@
      * - For opaque keys this translates to an invocation of the drivers'
      *   copy_key entry point through the dispatch layer.
      * */
-    if (psa_key_lifetime_is_external(actual_attributes.core.lifetime)) {
+    if (psa_key_lifetime_is_external(actual_attributes.lifetime)) {
         status = psa_driver_wrapper_get_key_buffer_size(&actual_attributes,
                                                         &storage_size);
         if (status != PSA_SUCCESS) {
@@ -2512,7 +2335,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot = NULL;
-    psa_key_attributes_t attributes;
 
     /* A context must be freshly initialized before it can be set up. */
     if (operation->id != 0) {
@@ -2529,11 +2351,7 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
-    status = psa_mac_finalize_alg_and_key_validation(alg, &attributes,
+    status = psa_mac_finalize_alg_and_key_validation(alg, &slot->attr,
                                                      &operation->mac_size);
     if (status != PSA_SUCCESS) {
         goto exit;
@@ -2543,13 +2361,13 @@
     /* Dispatch the MAC setup call with validated input */
     if (is_sign) {
         status = psa_driver_wrapper_mac_sign_setup(operation,
-                                                   &attributes,
+                                                   &slot->attr,
                                                    slot->key.data,
                                                    slot->key.bytes,
                                                    alg);
     } else {
         status = psa_driver_wrapper_mac_verify_setup(operation,
-                                                     &attributes,
+                                                     &slot->attr,
                                                      slot->key.data,
                                                      slot->key.bytes,
                                                      alg);
@@ -2699,7 +2517,6 @@
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
     uint8_t operation_mac_size = 0;
-    psa_key_attributes_t attributes;
 
     status = psa_get_and_lock_key_slot_with_policy(
         key,
@@ -2710,11 +2527,7 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
-    status = psa_mac_finalize_alg_and_key_validation(alg, &attributes,
+    status = psa_mac_finalize_alg_and_key_validation(alg, &slot->attr,
                                                      &operation_mac_size);
     if (status != PSA_SUCCESS) {
         goto exit;
@@ -2726,7 +2539,7 @@
     }
 
     status = psa_driver_wrapper_mac_compute(
-        &attributes,
+        &slot->attr,
         slot->key.data, slot->key.bytes,
         alg,
         input, input_length,
@@ -2836,7 +2649,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
-    psa_key_attributes_t attributes;
 
     *signature_length = 0;
 
@@ -2868,19 +2680,15 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     if (input_is_message) {
         status = psa_driver_wrapper_sign_message(
-            &attributes, slot->key.data, slot->key.bytes,
+            &slot->attr, slot->key.data, slot->key.bytes,
             alg, input, input_length,
             signature, signature_size, signature_length);
     } else {
 
         status = psa_driver_wrapper_sign_hash(
-            &attributes, slot->key.data, slot->key.bytes,
+            &slot->attr, slot->key.data, slot->key.bytes,
             alg, input, input_length,
             signature, signature_size, signature_length);
     }
@@ -2922,18 +2730,14 @@
         return status;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = slot->attr
-    };
-
     if (input_is_message) {
         status = psa_driver_wrapper_verify_message(
-            &attributes, slot->key.data, slot->key.bytes,
+            &slot->attr, slot->key.data, slot->key.bytes,
             alg, input, input_length,
             signature, signature_length);
     } else {
         status = psa_driver_wrapper_verify_hash(
-            &attributes, slot->key.data, slot->key.bytes,
+            &slot->attr, slot->key.data, slot->key.bytes,
             alg, input, input_length,
             signature, signature_length);
     }
@@ -3044,7 +2848,7 @@
     psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
     uint8_t *signature, size_t signature_size, size_t *signature_length)
 {
-    if (attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+    if (attributes->type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
         if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
             PSA_ALG_IS_RSA_PSS(alg)) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
@@ -3059,7 +2863,7 @@
         } else {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
-    } else if (PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    } else if (PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         if (PSA_ALG_IS_ECDSA(alg)) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
             defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
@@ -3105,7 +2909,7 @@
     psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
     const uint8_t *signature, size_t signature_length)
 {
-    if (PSA_KEY_TYPE_IS_RSA(attributes->core.type)) {
+    if (PSA_KEY_TYPE_IS_RSA(attributes->type)) {
         if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
             PSA_ALG_IS_RSA_PSS(alg)) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_SIGN) || \
@@ -3120,7 +2924,7 @@
         } else {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
-    } else if (PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    } else if (PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         if (PSA_ALG_IS_ECDSA(alg)) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
             defined(MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA)
@@ -3171,7 +2975,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
-    psa_key_attributes_t attributes;
 
     (void) input;
     (void) input_length;
@@ -3196,12 +2999,8 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     status = psa_driver_wrapper_asymmetric_encrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg, input, input_length, salt, salt_length,
         output, output_size, output_length);
 exit:
@@ -3223,7 +3022,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
-    psa_key_attributes_t attributes;
 
     (void) input;
     (void) input_length;
@@ -3247,12 +3045,8 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     status = psa_driver_wrapper_asymmetric_decrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg, input, input_length, salt, salt_length,
         output, output_size, output_length);
 
@@ -3321,7 +3115,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot;
-    psa_key_attributes_t attributes;
 
     /* Check that start has not been previously called, or operation has not
      * previously errored. */
@@ -3348,14 +3141,10 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     /* Ensure ops count gets reset, in case of operation re-use. */
     operation->num_ops = 0;
 
-    status = psa_driver_wrapper_sign_hash_start(operation, &attributes,
+    status = psa_driver_wrapper_sign_hash_start(operation, &slot->attr,
                                                 slot->key.data,
                                                 slot->key.bytes, alg,
                                                 hash, hash_length);
@@ -3493,14 +3282,10 @@
         return status;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = slot->attr
-    };
-
     /* Ensure ops count gets reset, in case of operation re-use. */
     operation->num_ops = 0;
 
-    status = psa_driver_wrapper_verify_hash_start(operation, &attributes,
+    status = psa_driver_wrapper_verify_hash_start(operation, &slot->attr,
                                                   slot->key.data,
                                                   slot->key.bytes,
                                                   alg, hash, hash_length,
@@ -3635,7 +3420,7 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     size_t required_hash_length;
 
-    if (!PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    if (!PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
 
@@ -3652,8 +3437,8 @@
     /* Ensure num_ops is zero'ed in case of context re-use. */
     operation->num_ops = 0;
 
-    status = mbedtls_psa_ecp_load_representation(attributes->core.type,
-                                                 attributes->core.bits,
+    status = mbedtls_psa_ecp_load_representation(attributes->type,
+                                                 attributes->bits,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &operation->ctx);
@@ -3851,7 +3636,7 @@
     size_t coordinate_bytes = 0;
     size_t required_hash_length = 0;
 
-    if (!PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    if (!PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
 
@@ -3870,8 +3655,8 @@
     /* Ensure num_ops is zero'ed in case of context re-use. */
     operation->num_ops = 0;
 
-    status = mbedtls_psa_ecp_load_representation(attributes->core.type,
-                                                 attributes->core.bits,
+    status = mbedtls_psa_ecp_load_representation(attributes->type,
+                                                 attributes->bits,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &operation->ctx);
@@ -4029,7 +3814,6 @@
     psa_key_usage_t usage = (cipher_operation == MBEDTLS_ENCRYPT ?
                              PSA_KEY_USAGE_ENCRYPT :
                              PSA_KEY_USAGE_DECRYPT);
-    psa_key_attributes_t attributes;
 
     /* A context must be freshly initialized before it can be set up. */
     if (operation->id != 0) {
@@ -4059,20 +3843,16 @@
     }
     operation->default_iv_length = PSA_CIPHER_IV_LENGTH(slot->attr.type, alg);
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     /* Try doing the operation through a driver before using software fallback. */
     if (cipher_operation == MBEDTLS_ENCRYPT) {
         status = psa_driver_wrapper_cipher_encrypt_setup(operation,
-                                                         &attributes,
+                                                         &slot->attr,
                                                          slot->key.data,
                                                          slot->key.bytes,
                                                          alg);
     } else {
         status = psa_driver_wrapper_cipher_decrypt_setup(operation,
-                                                         &attributes,
+                                                         &slot->attr,
                                                          slot->key.data,
                                                          slot->key.bytes,
                                                          alg);
@@ -4285,7 +4065,6 @@
     psa_key_slot_t *slot = NULL;
     uint8_t local_iv[PSA_CIPHER_IV_MAX_SIZE];
     size_t default_iv_length = 0;
-    psa_key_attributes_t attributes;
 
     if (!PSA_ALG_IS_CIPHER(alg)) {
         status = PSA_ERROR_INVALID_ARGUMENT;
@@ -4299,10 +4078,6 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     default_iv_length = PSA_CIPHER_IV_LENGTH(slot->attr.type, alg);
     if (default_iv_length > PSA_CIPHER_IV_MAX_SIZE) {
         status = PSA_ERROR_GENERIC_ERROR;
@@ -4322,7 +4097,7 @@
     }
 
     status = psa_driver_wrapper_cipher_encrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg, local_iv, default_iv_length, input, input_length,
         psa_crypto_buffer_offset(output, default_iv_length),
         output_size - default_iv_length, output_length);
@@ -4356,7 +4131,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot = NULL;
-    psa_key_attributes_t attributes;
 
     if (!PSA_ALG_IS_CIPHER(alg)) {
         status = PSA_ERROR_INVALID_ARGUMENT;
@@ -4370,10 +4144,6 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     if (alg == PSA_ALG_CCM_STAR_NO_TAG &&
         input_length < PSA_BLOCK_CIPHER_BLOCK_LENGTH(slot->attr.type)) {
         status = PSA_ERROR_INVALID_ARGUMENT;
@@ -4384,7 +4154,7 @@
     }
 
     status = psa_driver_wrapper_cipher_decrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg, input, input_length,
         output, output_size, output_length);
 
@@ -4493,17 +4263,13 @@
         return status;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = slot->attr
-    };
-
     status = psa_aead_check_nonce_length(alg, nonce_length);
     if (status != PSA_SUCCESS) {
         goto exit;
     }
 
     status = psa_driver_wrapper_aead_encrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg,
         nonce, nonce_length,
         additional_data, additional_data_length,
@@ -4548,17 +4314,13 @@
         return status;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = slot->attr
-    };
-
     status = psa_aead_check_nonce_length(alg, nonce_length);
     if (status != PSA_SUCCESS) {
         goto exit;
     }
 
     status = psa_driver_wrapper_aead_decrypt(
-        &attributes, slot->key.data, slot->key.bytes,
+        &slot->attr, slot->key.data, slot->key.bytes,
         alg,
         nonce, nonce_length,
         additional_data, additional_data_length,
@@ -4624,7 +4386,6 @@
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot = NULL;
     psa_key_usage_t key_usage = 0;
-    psa_key_attributes_t attributes;
 
     status = psa_aead_check_algorithm(alg);
     if (status != PSA_SUCCESS) {
@@ -4654,23 +4415,19 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
     if ((status = psa_validate_tag_length(alg)) != PSA_SUCCESS) {
         goto exit;
     }
 
     if (is_encrypt) {
         status = psa_driver_wrapper_aead_encrypt_setup(operation,
-                                                       &attributes,
+                                                       &slot->attr,
                                                        slot->key.data,
                                                        slot->key.bytes,
                                                        alg);
     } else {
         status = psa_driver_wrapper_aead_decrypt_setup(operation,
-                                                       &attributes,
+                                                       &slot->attr,
                                                        slot->key.data,
                                                        slot->key.bytes,
                                                        alg);
@@ -4679,7 +4436,7 @@
         goto exit;
     }
 
-    operation->key_type = psa_get_key_type(&attributes);
+    operation->key_type = psa_get_key_type(&slot->attr);
 
 exit:
     unlock_status = psa_unregister_read_under_mutex(slot);
@@ -5982,7 +5739,6 @@
     size_t bytes = PSA_BITS_TO_BYTES(bits);
     size_t storage_size = bytes;
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_key_attributes_t attributes;
 
     if (PSA_KEY_TYPE_IS_PUBLIC_KEY(slot->attr.type)) {
         return PSA_ERROR_INVALID_ARGUMENT;
@@ -6031,12 +5787,9 @@
     }
 
     slot->attr.bits = (psa_key_bits_t) bits;
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
 
-    if (psa_key_lifetime_is_external(attributes.core.lifetime)) {
-        status = psa_driver_wrapper_get_key_buffer_size(&attributes,
+    if (psa_key_lifetime_is_external(slot->attr.lifetime)) {
+        status = psa_driver_wrapper_get_key_buffer_size(&slot->attr,
                                                         &storage_size);
         if (status != PSA_SUCCESS) {
             goto exit;
@@ -6047,7 +5800,7 @@
         goto exit;
     }
 
-    status = psa_driver_wrapper_import_key(&attributes,
+    status = psa_driver_wrapper_import_key(&slot->attr,
                                            data, bytes,
                                            slot->key.data,
                                            slot->key.bytes,
@@ -6061,9 +5814,28 @@
     return status;
 }
 
-psa_status_t psa_key_derivation_output_key(const psa_key_attributes_t *attributes,
-                                           psa_key_derivation_operation_t *operation,
-                                           mbedtls_svc_key_id_t *key)
+static const psa_key_production_parameters_t default_production_parameters =
+    PSA_KEY_PRODUCTION_PARAMETERS_INIT;
+
+int psa_key_production_parameters_are_default(
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length)
+{
+    if (params->flags != 0) {
+        return 0;
+    }
+    if (params_data_length != 0) {
+        return 0;
+    }
+    return 1;
+}
+
+psa_status_t psa_key_derivation_output_key_ext(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length,
+    mbedtls_svc_key_id_t *key)
 {
     psa_status_t status;
     psa_key_slot_t *slot = NULL;
@@ -6077,6 +5849,10 @@
         return PSA_ERROR_INVALID_ARGUMENT;
     }
 
+    if (!psa_key_production_parameters_are_default(params, params_data_length)) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
     if (operation->alg == PSA_ALG_NONE) {
         return PSA_ERROR_BAD_STATE;
     }
@@ -6095,7 +5871,7 @@
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
     if (status == PSA_SUCCESS) {
         status = psa_generate_derived_key_internal(slot,
-                                                   attributes->core.bits,
+                                                   attributes->bits,
                                                    operation);
     }
     if (status == PSA_SUCCESS) {
@@ -6108,6 +5884,15 @@
     return status;
 }
 
+psa_status_t psa_key_derivation_output_key(
+    const psa_key_attributes_t *attributes,
+    psa_key_derivation_operation_t *operation,
+    mbedtls_svc_key_id_t *key)
+{
+    return psa_key_derivation_output_key_ext(attributes, operation,
+                                             &default_production_parameters, 0,
+                                             key);
+}
 
 
 /****************************************************************/
@@ -7131,11 +6916,7 @@
         return PSA_ERROR_NOT_SUPPORTED;
     }
 
-    psa_key_attributes_t attributes = {
-        .core = private_key->attr
-    };
-
-    return psa_driver_wrapper_key_agreement(&attributes,
+    return psa_driver_wrapper_key_agreement(&private_key->attr,
                                             private_key->key.data,
                                             private_key->key.bytes, alg,
                                             peer_key, peer_key_length,
@@ -7154,7 +6935,7 @@
                                                size_t peer_key_length)
 {
     psa_status_t status;
-    uint8_t shared_secret[PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE];
+    uint8_t shared_secret[PSA_RAW_KEY_AGREEMENT_OUTPUT_MAX_SIZE] = { 0 };
     size_t shared_secret_length = 0;
     psa_algorithm_t ka_alg = PSA_ALG_KEY_AGREEMENT_GET_BASE(operation->alg);
 
@@ -7475,15 +7256,15 @@
 
 psa_status_t psa_generate_key_internal(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
-    psa_key_type_t type = attributes->core.type;
+    psa_key_type_t type = attributes->type;
 
-    if ((attributes->domain_parameters == NULL) &&
-        (attributes->domain_parameters_size != 0)) {
-        return PSA_ERROR_INVALID_ARGUMENT;
-    }
+    /* Only used for RSA */
+    (void) params;
+    (void) params_data_length;
 
     if (key_type_is_raw_bytes(type)) {
         status = psa_generate_random(key_buffer, key_buffer_size);
@@ -7501,6 +7282,7 @@
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
     if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
         return mbedtls_psa_rsa_generate_key(attributes,
+                                            params, params_data_length,
                                             key_buffer,
                                             key_buffer_size,
                                             key_buffer_length);
@@ -7532,8 +7314,10 @@
     return PSA_SUCCESS;
 }
 
-psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
-                              mbedtls_svc_key_id_t *key)
+psa_status_t psa_generate_key_ext(const psa_key_attributes_t *attributes,
+                                  const psa_key_production_parameters_t *params,
+                                  size_t params_data_length,
+                                  mbedtls_svc_key_id_t *key)
 {
     psa_status_t status;
     psa_key_slot_t *slot = NULL;
@@ -7549,7 +7333,18 @@
     }
 
     /* Reject any attempt to create a public key. */
-    if (PSA_KEY_TYPE_IS_PUBLIC_KEY(attributes->core.type)) {
+    if (PSA_KEY_TYPE_IS_PUBLIC_KEY(attributes->type)) {
+        return PSA_ERROR_INVALID_ARGUMENT;
+    }
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    if (attributes->type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+        if (params->flags != 0) {
+            return PSA_ERROR_INVALID_ARGUMENT;
+        }
+    } else
+#endif
+    if (!psa_key_production_parameters_are_default(params, params_data_length)) {
         return PSA_ERROR_INVALID_ARGUMENT;
     }
 
@@ -7564,17 +7359,17 @@
      * with storage ( MBEDTLS_PSA_CRYPTO_SE_C ) ),we have to allocate a
      * buffer to hold the generated key material. */
     if (slot->key.data == NULL) {
-        if (PSA_KEY_LIFETIME_GET_LOCATION(attributes->core.lifetime) ==
+        if (PSA_KEY_LIFETIME_GET_LOCATION(attributes->lifetime) ==
             PSA_KEY_LOCATION_LOCAL_STORAGE) {
             status = psa_validate_key_type_and_size_for_key_generation(
-                attributes->core.type, attributes->core.bits);
+                attributes->type, attributes->bits);
             if (status != PSA_SUCCESS) {
                 goto exit;
             }
 
             key_buffer_size = PSA_EXPORT_KEY_OUTPUT_SIZE(
-                attributes->core.type,
-                attributes->core.bits);
+                attributes->type,
+                attributes->bits);
         } else {
             status = psa_driver_wrapper_get_key_buffer_size(
                 attributes, &key_buffer_size);
@@ -7590,8 +7385,9 @@
     }
 
     status = psa_driver_wrapper_generate_key(attributes,
-                                             slot->key.data, slot->key.bytes, &slot->key.bytes);
-
+                                             params, params_data_length,
+                                             slot->key.data, slot->key.bytes,
+                                             &slot->key.bytes);
     if (status != PSA_SUCCESS) {
         psa_remove_key_data_from_memory(slot);
     }
@@ -7607,6 +7403,14 @@
     return status;
 }
 
+psa_status_t psa_generate_key(const psa_key_attributes_t *attributes,
+                              mbedtls_svc_key_id_t *key)
+{
+    return psa_generate_key_ext(attributes,
+                                &default_production_parameters, 0,
+                                key);
+}
+
 /****************************************************************/
 /* Module setup */
 /****************************************************************/
@@ -7879,7 +7683,6 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_status_t unlock_status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_slot_t *slot = NULL;
-    psa_key_attributes_t attributes;
     psa_key_type_t type;
 
     if (operation->stage != PSA_PAKE_OPERATION_STAGE_COLLECT_INPUTS) {
@@ -7894,11 +7697,7 @@
         goto exit;
     }
 
-    attributes = (psa_key_attributes_t) {
-        .core = slot->attr
-    };
-
-    type = psa_get_key_type(&attributes);
+    type = psa_get_key_type(&slot->attr);
 
     if (type != PSA_KEY_TYPE_PASSWORD &&
         type != PSA_KEY_TYPE_PASSWORD_HASH) {
@@ -7914,7 +7713,8 @@
 
     memcpy(operation->data.inputs.password, slot->key.data, slot->key.bytes);
     operation->data.inputs.password_len = slot->key.bytes;
-    operation->data.inputs.attributes = attributes;
+    operation->data.inputs.attributes = slot->attr;
+
 exit:
     if (status != PSA_SUCCESS) {
         psa_pake_abort(operation);
diff --git a/library/psa_crypto_aead.c b/library/psa_crypto_aead.c
index 49aa961..a201985 100644
--- a/library/psa_crypto_aead.c
+++ b/library/psa_crypto_aead.c
@@ -33,10 +33,10 @@
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     mbedtls_cipher_id_t cipher_id;
     mbedtls_cipher_mode_t mode;
-    size_t key_bits = attributes->core.bits;
+    size_t key_bits = attributes->bits;
     (void) key_buffer_size;
 
-    status = mbedtls_cipher_values_from_psa(alg, attributes->core.type,
+    status = mbedtls_cipher_values_from_psa(alg, attributes->type,
                                             &key_bits, &mode, &cipher_id);
     if (status != PSA_SUCCESS) {
         return status;
@@ -49,7 +49,7 @@
             /* CCM allows the following tag lengths: 4, 6, 8, 10, 12, 14, 16.
              * The call to mbedtls_ccm_encrypt_and_tag or
              * mbedtls_ccm_auth_decrypt will validate the tag length. */
-            if (PSA_BLOCK_CIPHER_BLOCK_LENGTH(attributes->core.type) != 16) {
+            if (PSA_BLOCK_CIPHER_BLOCK_LENGTH(attributes->type) != 16) {
                 return PSA_ERROR_INVALID_ARGUMENT;
             }
 
@@ -69,7 +69,7 @@
             /* GCM allows the following tag lengths: 4, 8, 12, 13, 14, 15, 16.
              * The call to mbedtls_gcm_crypt_and_tag or
              * mbedtls_gcm_auth_decrypt will validate the tag length. */
-            if (PSA_BLOCK_CIPHER_BLOCK_LENGTH(attributes->core.type) != 16) {
+            if (PSA_BLOCK_CIPHER_BLOCK_LENGTH(attributes->type) != 16) {
                 return PSA_ERROR_INVALID_ARGUMENT;
             }
 
diff --git a/library/psa_crypto_cipher.c b/library/psa_crypto_cipher.c
index 3132854..a45fb0f 100644
--- a/library/psa_crypto_cipher.c
+++ b/library/psa_crypto_cipher.c
@@ -289,14 +289,14 @@
     int ret = 0;
     size_t key_bits;
     const mbedtls_cipher_info_t *cipher_info = NULL;
-    psa_key_type_t key_type = attributes->core.type;
+    psa_key_type_t key_type = attributes->type;
 
     (void) key_buffer_size;
 
     mbedtls_cipher_init(&operation->ctx.cipher);
 
     operation->alg = alg;
-    key_bits = attributes->core.bits;
+    key_bits = attributes->bits;
     cipher_info = mbedtls_cipher_info_from_psa(alg, key_type,
                                                key_bits, NULL);
     if (cipher_info == NULL) {
diff --git a/library/psa_crypto_client.c b/library/psa_crypto_client.c
index 472d3d3..72f671d 100644
--- a/library/psa_crypto_client.c
+++ b/library/psa_crypto_client.c
@@ -16,57 +16,7 @@
 
 void psa_reset_key_attributes(psa_key_attributes_t *attributes)
 {
-    mbedtls_free(attributes->domain_parameters);
     memset(attributes, 0, sizeof(*attributes));
 }
 
-psa_status_t psa_set_key_domain_parameters(psa_key_attributes_t *attributes,
-                                           psa_key_type_t type,
-                                           const uint8_t *data,
-                                           size_t data_length)
-{
-    uint8_t *copy = NULL;
-
-    if (data_length != 0) {
-        copy = mbedtls_calloc(1, data_length);
-        if (copy == NULL) {
-            return PSA_ERROR_INSUFFICIENT_MEMORY;
-        }
-        memcpy(copy, data, data_length);
-    }
-    /* After this point, this function is guaranteed to succeed, so it
-     * can start modifying `*attributes`. */
-
-    if (attributes->domain_parameters != NULL) {
-        mbedtls_free(attributes->domain_parameters);
-        attributes->domain_parameters = NULL;
-        attributes->domain_parameters_size = 0;
-    }
-
-    attributes->domain_parameters = copy;
-    attributes->domain_parameters_size = data_length;
-    attributes->core.type = type;
-    return PSA_SUCCESS;
-}
-
-psa_status_t psa_get_key_domain_parameters(
-    const psa_key_attributes_t *attributes,
-    uint8_t *data, size_t data_size, size_t *data_length)
-{
-    if (attributes->domain_parameters == NULL &&
-        attributes->domain_parameters_size == SIZE_MAX) {
-        return PSA_ERROR_NOT_SUPPORTED;
-    }
-
-    if (attributes->domain_parameters_size > data_size) {
-        return PSA_ERROR_BUFFER_TOO_SMALL;
-    }
-    *data_length = attributes->domain_parameters_size;
-    if (attributes->domain_parameters_size != 0) {
-        memcpy(data, attributes->domain_parameters,
-               attributes->domain_parameters_size);
-    }
-    return PSA_SUCCESS;
-}
-
 #endif /* MBEDTLS_PSA_CRYPTO_CLIENT */
diff --git a/library/psa_crypto_core.h b/library/psa_crypto_core.h
index 0d7322c..d4bdf92 100644
--- a/library/psa_crypto_core.h
+++ b/library/psa_crypto_core.h
@@ -59,7 +59,7 @@
  * and metadata for one key.
  */
 typedef struct {
-    psa_core_key_attributes_t attr;
+    psa_key_attributes_t attr;
 
     /*
      * The current state of the key slot, as described in
@@ -159,11 +159,6 @@
     } while (0);
 #endif
 
-/* A mask of key attribute flags used only internally.
- * Currently there aren't any. */
-#define PSA_KA_MASK_INTERNAL_ONLY (     \
-        0)
-
 /** Test whether a key slot has any registered readers.
  * If multi-threading is enabled, the caller must hold the
  * global key slot mutex.
@@ -177,56 +172,6 @@
     return slot->registered_readers > 0;
 }
 
-/** Retrieve flags from psa_key_slot_t::attr::core::flags.
- *
- * \param[in] slot      The key slot to query.
- * \param mask          The mask of bits to extract.
- *
- * \return The key attribute flags in the given slot,
- *         bitwise-anded with \p mask.
- */
-static inline uint16_t psa_key_slot_get_flags(const psa_key_slot_t *slot,
-                                              uint16_t mask)
-{
-    return slot->attr.flags & mask;
-}
-
-/** Set flags in psa_key_slot_t::attr::core::flags.
- *
- * \param[in,out] slot  The key slot to modify.
- * \param mask          The mask of bits to modify.
- * \param value         The new value of the selected bits.
- */
-static inline void psa_key_slot_set_flags(psa_key_slot_t *slot,
-                                          uint16_t mask,
-                                          uint16_t value)
-{
-    slot->attr.flags = ((~mask & slot->attr.flags) |
-                        (mask & value));
-}
-
-/** Turn on flags in psa_key_slot_t::attr::core::flags.
- *
- * \param[in,out] slot  The key slot to modify.
- * \param mask          The mask of bits to set.
- */
-static inline void psa_key_slot_set_bits_in_flags(psa_key_slot_t *slot,
-                                                  uint16_t mask)
-{
-    slot->attr.flags |= mask;
-}
-
-/** Turn off flags in psa_key_slot_t::attr::core::flags.
- *
- * \param[in,out] slot  The key slot to modify.
- * \param mask          The mask of bits to clear.
- */
-static inline void psa_key_slot_clear_bits(psa_key_slot_t *slot,
-                                           uint16_t mask)
-{
-    slot->attr.flags &= ~mask;
-}
-
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
 /** Get the SE slot number of a key from the key slot storing its description.
  *
@@ -398,6 +343,18 @@
     const uint8_t *key_buffer, size_t key_buffer_size,
     uint8_t *data, size_t data_size, size_t *data_length);
 
+/** Whether a key production parameters structure is the default.
+ *
+ * Calls to a key generation driver with non-default production parameters
+ * require a driver supporting custom production parameters.
+ *
+ * \param[in] params            The key production parameters to check.
+ * \param params_data_length    Size of `params->data` in bytes.
+ */
+int psa_key_production_parameters_are_default(
+    const psa_key_production_parameters_t *params,
+    size_t params_data_length);
+
 /**
  * \brief Generate a key.
  *
@@ -405,6 +362,9 @@
  *       entry point.
  *
  * \param[in]  attributes         The attributes for the key to generate.
+ * \param[in]  params             The production parameters from
+ *                                psa_generate_key_ext().
+ * \param      params_data_length The size of `params->data` in bytes.
  * \param[out] key_buffer         Buffer where the key data is to be written.
  * \param[in]  key_buffer_size    Size of \p key_buffer in bytes.
  * \param[out] key_buffer_length  On success, the number of bytes written in
@@ -419,6 +379,8 @@
  *         The size of \p key_buffer is too small.
  */
 psa_status_t psa_generate_key_internal(const psa_key_attributes_t *attributes,
+                                       const psa_key_production_parameters_t *params,
+                                       size_t params_data_length,
                                        uint8_t *key_buffer,
                                        size_t key_buffer_size,
                                        size_t *key_buffer_length);
diff --git a/library/psa_crypto_ecp.c b/library/psa_crypto_ecp.c
index db08541..95baff6 100644
--- a/library/psa_crypto_ecp.c
+++ b/library/psa_crypto_ecp.c
@@ -216,8 +216,8 @@
     mbedtls_ecp_keypair *ecp = NULL;
 
     /* Parse input */
-    status = mbedtls_psa_ecp_load_representation(attributes->core.type,
-                                                 attributes->core.bits,
+    status = mbedtls_psa_ecp_load_representation(attributes->type,
+                                                 attributes->bits,
                                                  data,
                                                  data_length,
                                                  &ecp);
@@ -225,7 +225,7 @@
         goto exit;
     }
 
-    if (PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type) ==
+    if (PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->type) ==
         PSA_ECC_FAMILY_MONTGOMERY) {
         *bits = ecp->grp.nbits + 1;
     } else {
@@ -235,7 +235,7 @@
     /* Re-export the data to PSA export format. There is currently no support
      * for other input formats then the export format, so this is a 1-1
      * copy operation. */
-    status = mbedtls_psa_ecp_export_key(attributes->core.type,
+    status = mbedtls_psa_ecp_export_key(attributes->type,
                                         ecp,
                                         key_buffer,
                                         key_buffer_size,
@@ -281,20 +281,8 @@
 
         return status;
     } else {
-        if (data_size < PSA_BITS_TO_BYTES(ecp->grp.nbits)) {
-            return PSA_ERROR_BUFFER_TOO_SMALL;
-        }
-
         status = mbedtls_to_psa_error(
-            mbedtls_ecp_write_key(ecp,
-                                  data,
-                                  PSA_BITS_TO_BYTES(ecp->grp.nbits)));
-        if (status == PSA_SUCCESS) {
-            *data_length = PSA_BITS_TO_BYTES(ecp->grp.nbits);
-        } else {
-            memset(data, 0, data_size);
-        }
-
+            mbedtls_ecp_write_key_ext(ecp, data_length, data, data_size));
         return status;
     }
 }
@@ -308,7 +296,7 @@
     mbedtls_ecp_keypair *ecp = NULL;
 
     status = mbedtls_psa_ecp_load_representation(
-        attributes->core.type, attributes->core.bits,
+        attributes->type, attributes->bits,
         key_buffer, key_buffer_size, &ecp);
     if (status != PSA_SUCCESS) {
         return status;
@@ -316,7 +304,7 @@
 
     status = mbedtls_psa_ecp_export_key(
         PSA_KEY_TYPE_ECC_PUBLIC_KEY(
-            PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type)),
+            PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->type)),
         ecp, data, data_size, data_length);
 
     mbedtls_ecp_keypair_free(ecp);
@@ -337,18 +325,14 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
 
     psa_ecc_family_t curve = PSA_KEY_TYPE_ECC_GET_FAMILY(
-        attributes->core.type);
+        attributes->type);
     mbedtls_ecp_group_id grp_id =
-        mbedtls_ecc_group_from_psa(curve, attributes->core.bits);
+        mbedtls_ecc_group_from_psa(curve, attributes->bits);
 
     const mbedtls_ecp_curve_info *curve_info =
         mbedtls_ecp_curve_info_from_grp_id(grp_id);
     mbedtls_ecp_keypair ecp;
 
-    if (attributes->domain_parameters_size != 0) {
-        return PSA_ERROR_NOT_SUPPORTED;
-    }
-
     if (grp_id == MBEDTLS_ECP_DP_NONE || curve_info == NULL) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
@@ -363,14 +347,11 @@
     }
 
     status = mbedtls_to_psa_error(
-        mbedtls_ecp_write_key(&ecp, key_buffer, key_buffer_size));
+        mbedtls_ecp_write_key_ext(&ecp, key_buffer_length,
+                                  key_buffer, key_buffer_size));
 
     mbedtls_ecp_keypair_free(&ecp);
 
-    if (status == PSA_SUCCESS) {
-        *key_buffer_length = key_buffer_size;
-    }
-
     return status;
 }
 #endif /* MBEDTLS_PSA_BUILTIN_KEY_TYPE_ECC_KEY_PAIR_GENERATE */
@@ -393,8 +374,8 @@
     size_t curve_bytes;
     mbedtls_mpi r, s;
 
-    status = mbedtls_psa_ecp_load_representation(attributes->core.type,
-                                                 attributes->core.bits,
+    status = mbedtls_psa_ecp_load_representation(attributes->type,
+                                                 attributes->bits,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &ecp);
@@ -480,8 +461,8 @@
 
     (void) alg;
 
-    status = mbedtls_psa_ecp_load_representation(attributes->core.type,
-                                                 attributes->core.bits,
+    status = mbedtls_psa_ecp_load_representation(attributes->type,
+                                                 attributes->bits,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &ecp);
@@ -545,14 +526,14 @@
     size_t *shared_secret_length)
 {
     psa_status_t status;
-    if (!PSA_KEY_TYPE_IS_ECC_KEY_PAIR(attributes->core.type) ||
+    if (!PSA_KEY_TYPE_IS_ECC_KEY_PAIR(attributes->type) ||
         !PSA_ALG_IS_ECDH(alg)) {
         return PSA_ERROR_INVALID_ARGUMENT;
     }
     mbedtls_ecp_keypair *ecp = NULL;
     status = mbedtls_psa_ecp_load_representation(
-        attributes->core.type,
-        attributes->core.bits,
+        attributes->type,
+        attributes->bits,
         key_buffer,
         key_buffer_size,
         &ecp);
diff --git a/library/psa_crypto_ffdh.c b/library/psa_crypto_ffdh.c
index 0099d5f..ae38f6d 100644
--- a/library/psa_crypto_ffdh.c
+++ b/library/psa_crypto_ffdh.c
@@ -151,7 +151,7 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     mbedtls_mpi GX, G, X, P;
-    psa_key_type_t type = attributes->core.type;
+    psa_key_type_t type = attributes->type;
 
     if (PSA_KEY_TYPE_IS_PUBLIC_KEY(type)) {
         if (key_buffer_size > data_size) {
@@ -167,7 +167,7 @@
     mbedtls_mpi_init(&GX); mbedtls_mpi_init(&G);
     mbedtls_mpi_init(&X); mbedtls_mpi_init(&P);
 
-    size_t key_len = PSA_BITS_TO_BYTES(attributes->core.bits);
+    size_t key_len = PSA_BITS_TO_BYTES(attributes->bits);
 
     status = mbedtls_psa_ffdh_set_prime_generator(key_len, &P, &G);
 
@@ -283,7 +283,7 @@
     mbedtls_mpi_init(&K);
 
     status = mbedtls_psa_ffdh_set_prime_generator(
-        PSA_BITS_TO_BYTES(attributes->core.bits), &P, &G);
+        PSA_BITS_TO_BYTES(attributes->bits), &P, &G);
 
     if (status != PSA_SUCCESS) {
         goto cleanup;
diff --git a/library/psa_crypto_rsa.c b/library/psa_crypto_rsa.c
index 4a574d1..2f613b3 100644
--- a/library/psa_crypto_rsa.c
+++ b/library/psa_crypto_rsa.c
@@ -116,7 +116,7 @@
     mbedtls_rsa_context *rsa = NULL;
 
     /* Parse input */
-    status = mbedtls_psa_rsa_load_representation(attributes->core.type,
+    status = mbedtls_psa_rsa_load_representation(attributes->type,
                                                  data,
                                                  data_length,
                                                  &rsa);
@@ -130,7 +130,7 @@
      * representation in the key slot. Export representation in case of RSA is
      * the smallest representation that's allowed as input, so a straight-up
      * allocation of the same size as the input buffer will be large enough. */
-    status = mbedtls_psa_rsa_export_key(attributes->core.type,
+    status = mbedtls_psa_rsa_export_key(attributes->type,
                                         rsa,
                                         key_buffer,
                                         key_buffer_size,
@@ -196,7 +196,7 @@
     mbedtls_rsa_context *rsa = NULL;
 
     status = mbedtls_psa_rsa_load_representation(
-        attributes->core.type, key_buffer, key_buffer_size, &rsa);
+        attributes->type, key_buffer, key_buffer_size, &rsa);
     if (status != PSA_SUCCESS) {
         return status;
     }
@@ -216,26 +216,21 @@
         * defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY) */
 
 #if defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
-static psa_status_t psa_rsa_read_exponent(const uint8_t *domain_parameters,
-                                          size_t domain_parameters_size,
+static psa_status_t psa_rsa_read_exponent(const uint8_t *e_bytes,
+                                          size_t e_length,
                                           int *exponent)
 {
     size_t i;
     uint32_t acc = 0;
 
-    if (domain_parameters_size == 0) {
-        *exponent = 65537;
-        return PSA_SUCCESS;
-    }
-
     /* Mbed TLS encodes the public exponent as an int. For simplicity, only
      * support values that fit in a 32-bit integer, which is larger than
      * int on just about every platform anyway. */
-    if (domain_parameters_size > sizeof(acc)) {
+    if (e_length > sizeof(acc)) {
         return PSA_ERROR_NOT_SUPPORTED;
     }
-    for (i = 0; i < domain_parameters_size; i++) {
-        acc = (acc << 8) | domain_parameters[i];
+    for (i = 0; i < e_length; i++) {
+        acc = (acc << 8) | e_bytes[i];
     }
     if (acc > INT_MAX) {
         return PSA_ERROR_NOT_SUPPORTED;
@@ -246,31 +241,33 @@
 
 psa_status_t mbedtls_psa_rsa_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length)
 {
     psa_status_t status;
     mbedtls_rsa_context rsa;
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    int exponent;
+    int exponent = 65537;
 
-    status = psa_rsa_read_exponent(attributes->domain_parameters,
-                                   attributes->domain_parameters_size,
-                                   &exponent);
-    if (status != PSA_SUCCESS) {
-        return status;
+    if (params_data_length != 0) {
+        status = psa_rsa_read_exponent(params->data, params_data_length,
+                                       &exponent);
+        if (status != PSA_SUCCESS) {
+            return status;
+        }
     }
 
     mbedtls_rsa_init(&rsa);
     ret = mbedtls_rsa_gen_key(&rsa,
                               mbedtls_psa_get_random,
                               MBEDTLS_PSA_RANDOM_STATE,
-                              (unsigned int) attributes->core.bits,
+                              (unsigned int) attributes->bits,
                               exponent);
     if (ret != 0) {
         return mbedtls_to_psa_error(ret);
     }
 
-    status = mbedtls_psa_rsa_export_key(attributes->core.type,
+    status = mbedtls_psa_rsa_export_key(attributes->type,
                                         &rsa, key_buffer, key_buffer_size,
                                         key_buffer_length);
     mbedtls_rsa_free(&rsa);
@@ -328,7 +325,7 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_md_type_t md_alg;
 
-    status = mbedtls_psa_rsa_load_representation(attributes->core.type,
+    status = mbedtls_psa_rsa_load_representation(attributes->type,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &rsa);
@@ -427,7 +424,7 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     mbedtls_md_type_t md_alg;
 
-    status = mbedtls_psa_rsa_load_representation(attributes->core.type,
+    status = mbedtls_psa_rsa_load_representation(attributes->type,
                                                  key_buffer,
                                                  key_buffer_size,
                                                  &rsa);
@@ -539,11 +536,11 @@
     (void) output_size;
     (void) output_length;
 
-    if (PSA_KEY_TYPE_IS_RSA(attributes->core.type)) {
+    if (PSA_KEY_TYPE_IS_RSA(attributes->type)) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
         defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
         mbedtls_rsa_context *rsa = NULL;
-        status = mbedtls_psa_rsa_load_representation(attributes->core.type,
+        status = mbedtls_psa_rsa_load_representation(attributes->type,
                                                      key_buffer,
                                                      key_buffer_size,
                                                      &rsa);
@@ -635,11 +632,11 @@
 
     *output_length = 0;
 
-    if (attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+    if (attributes->type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_PKCS1V15_CRYPT) || \
         defined(MBEDTLS_PSA_BUILTIN_ALG_RSA_OAEP)
         mbedtls_rsa_context *rsa = NULL;
-        status = mbedtls_psa_rsa_load_representation(attributes->core.type,
+        status = mbedtls_psa_rsa_load_representation(attributes->type,
                                                      key_buffer,
                                                      key_buffer_size,
                                                      &rsa);
diff --git a/library/psa_crypto_rsa.h b/library/psa_crypto_rsa.h
index e4c5caf..ffeef26 100644
--- a/library/psa_crypto_rsa.h
+++ b/library/psa_crypto_rsa.h
@@ -109,6 +109,15 @@
  *       entry point.
  *
  * \param[in]  attributes         The attributes for the RSA key to generate.
+ * \param[in]  params             Production parameters for the key
+ *                                generation. This function only uses
+ *                                `params->data`,
+ *                                which contains the public exponent.
+ *                                This can be a null pointer if
+ *                                \c params_data_length is 0.
+ * \param params_data_length      Length of `params->data` in bytes.
+ *                                This can be 0, in which case the
+ *                                public exponent will be 65537.
  * \param[out] key_buffer         Buffer where the key data is to be written.
  * \param[in]  key_buffer_size    Size of \p key_buffer in bytes.
  * \param[out] key_buffer_length  On success, the number of bytes written in
@@ -123,6 +132,7 @@
  */
 psa_status_t mbedtls_psa_rsa_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length);
 
 /** Sign an already-calculated hash with an RSA private key.
diff --git a/library/psa_crypto_slot_management.c b/library/psa_crypto_slot_management.c
index b2a3c7e..5dee32f 100644
--- a/library/psa_crypto_slot_management.c
+++ b/library/psa_crypto_slot_management.c
@@ -329,7 +329,7 @@
 
     /* Copy actual key length and core attributes into the slot on success */
     slot->key.bytes = key_buffer_length;
-    slot->attr = attributes.core;
+    slot->attr = attributes;
 exit:
     if (status != PSA_SUCCESS) {
         psa_remove_key_data_from_memory(slot);
diff --git a/library/psa_crypto_storage.c b/library/psa_crypto_storage.c
index 13a3c8a..7d1317b 100644
--- a/library/psa_crypto_storage.c
+++ b/library/psa_crypto_storage.c
@@ -235,7 +235,7 @@
 
 void psa_format_key_data_for_storage(const uint8_t *data,
                                      const size_t data_length,
-                                     const psa_core_key_attributes_t *attr,
+                                     const psa_key_attributes_t *attr,
                                      uint8_t *storage_data)
 {
     psa_persistent_key_storage_format *storage_format =
@@ -267,7 +267,7 @@
                                              size_t storage_data_length,
                                              uint8_t **key_data,
                                              size_t *key_data_length,
-                                             psa_core_key_attributes_t *attr)
+                                             psa_key_attributes_t *attr)
 {
     psa_status_t status;
     const psa_persistent_key_storage_format *storage_format =
@@ -314,7 +314,7 @@
     return PSA_SUCCESS;
 }
 
-psa_status_t psa_save_persistent_key(const psa_core_key_attributes_t *attr,
+psa_status_t psa_save_persistent_key(const psa_key_attributes_t *attr,
                                      const uint8_t *data,
                                      const size_t data_length)
 {
@@ -352,7 +352,7 @@
     mbedtls_zeroize_and_free(key_data, key_data_length);
 }
 
-psa_status_t psa_load_persistent_key(psa_core_key_attributes_t *attr,
+psa_status_t psa_load_persistent_key(psa_key_attributes_t *attr,
                                      uint8_t **data,
                                      size_t *data_length)
 {
diff --git a/library/psa_crypto_storage.h b/library/psa_crypto_storage.h
index b6b5e15..f1ea265 100644
--- a/library/psa_crypto_storage.h
+++ b/library/psa_crypto_storage.h
@@ -93,7 +93,7 @@
  * \retval #PSA_ERROR_DATA_INVALID \emptydescription
  * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
  */
-psa_status_t psa_save_persistent_key(const psa_core_key_attributes_t *attr,
+psa_status_t psa_save_persistent_key(const psa_key_attributes_t *attr,
                                      const uint8_t *data,
                                      const size_t data_length);
 
@@ -123,7 +123,7 @@
  * \retval #PSA_ERROR_DATA_CORRUPT \emptydescription
  * \retval #PSA_ERROR_DOES_NOT_EXIST \emptydescription
  */
-psa_status_t psa_load_persistent_key(psa_core_key_attributes_t *attr,
+psa_status_t psa_load_persistent_key(psa_key_attributes_t *attr,
                                      uint8_t **data,
                                      size_t *data_length);
 
@@ -163,7 +163,7 @@
  */
 void psa_format_key_data_for_storage(const uint8_t *data,
                                      const size_t data_length,
-                                     const psa_core_key_attributes_t *attr,
+                                     const psa_key_attributes_t *attr,
                                      uint8_t *storage_data);
 
 /**
@@ -186,7 +186,7 @@
                                              size_t storage_data_length,
                                              uint8_t **key_data,
                                              size_t *key_data_length,
-                                             psa_core_key_attributes_t *attr);
+                                             psa_key_attributes_t *attr);
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
 /** This symbol is defined if transaction support is required. */
diff --git a/library/ssl_client.c b/library/ssl_client.c
index 6d988a8..8892acf 100644
--- a/library/ssl_client.c
+++ b/library/ssl_client.c
@@ -765,11 +765,6 @@
           MBEDTLS_SSL_SESSION_TICKETS &&
           MBEDTLS_HAVE_TIME */
 
-    if (ssl->conf->f_rng == NULL) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("no RNG provided"));
-        return MBEDTLS_ERR_SSL_NO_RNG;
-    }
-
     /* Bet on the highest configured version if we are not in a TLS 1.2
      * renegotiation or session resumption.
      */
diff --git a/library/ssl_debug_helpers.h b/library/ssl_debug_helpers.h
index 2b0e737..a8e3140 100644
--- a/library/ssl_debug_helpers.h
+++ b/library/ssl_debug_helpers.h
@@ -21,6 +21,10 @@
 
 const char *mbedtls_ssl_states_str(mbedtls_ssl_states in);
 
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+const char *mbedtls_ssl_early_data_status_str(mbedtls_ssl_early_data_status in);
+#endif
+
 const char *mbedtls_ssl_protocol_version_str(mbedtls_ssl_protocol_version in);
 
 const char *mbedtls_tls_prf_types_str(mbedtls_tls_prf_types in);
diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index 942d4ad..883b988 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -665,21 +665,21 @@
 #if defined(MBEDTLS_SSL_CLI_C)
     /** Minimum TLS version to be negotiated.
      *
-     *  It is set up in the ClientHello writing preparation stage and used
-     *  throughout the ClientHello writing. Not relevant anymore as soon as
-     *  the protocol version has been negotiated thus as soon as the
-     *  ServerHello is received.
-     *  For a fresh handshake not linked to any previous handshake, it is
-     *  equal to the configured minimum minor version to be negotiated. When
-     *  renegotiating or resuming a session, it is equal to the previously
-     *  negotiated minor version.
+     * It is set up in the ClientHello writing preparation stage and used
+     * throughout the ClientHello writing. Not relevant anymore as soon as
+     * the protocol version has been negotiated thus as soon as the
+     * ServerHello is received.
+     * For a fresh handshake not linked to any previous handshake, it is
+     * equal to the configured minimum minor version to be negotiated. When
+     * renegotiating or resuming a session, it is equal to the previously
+     * negotiated minor version.
      *
-     *  There is no maximum TLS version field in this handshake context.
-     *  From the start of the handshake, we need to define a current protocol
-     *  version for the record layer which we define as the maximum TLS
-     *  version to be negotiated. The `tls_version` field of the SSL context is
-     *  used to store this maximum value until it contains the actual
-     *  negotiated value.
+     * There is no maximum TLS version field in this handshake context.
+     * From the start of the handshake, we need to define a current protocol
+     * version for the record layer which we define as the maximum TLS
+     * version to be negotiated. The `tls_version` field of the SSL context is
+     * used to store this maximum value until it contains the actual
+     * negotiated value.
      */
     mbedtls_ssl_protocol_version min_tls_version;
 #endif
@@ -730,16 +730,21 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
     uint8_t key_exchange_mode; /*!< Selected key exchange mode */
 
-    /** Number of HelloRetryRequest messages received/sent from/to the server. */
-    uint8_t hello_retry_request_count;
+    /**
+     * Flag indicating if, in the course of the current handshake, an
+     * HelloRetryRequest message has been sent by the server or received by
+     * the client (<> 0) or not (0).
+     */
+    uint8_t hello_retry_request_flag;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
     /**
-     *  Number of dummy change_cipher_spec (CCS) record sent. Used to send only
-     *  one CCS per handshake without having to complicate the handshake state
-     *  transitions.
+     * Flag indicating if, in the course of the current handshake, a dummy
+     * change_cipher_spec (CCS) record has already been sent. Used to send only
+     * one CCS per handshake while not complicating the handshake state
+     * transitions for that purpose.
      */
-    uint8_t ccs_count;
+    uint8_t ccs_sent;
 #endif
 
 #if defined(MBEDTLS_SSL_SRV_C)
@@ -2146,37 +2151,8 @@
                                            const unsigned char *end,
                                            size_t *out_len);
 
-#if defined(MBEDTLS_SSL_CLI_C)
-/*
- * The client has not sent the first ClientHello yet, it is unknown if the
- * client will send an early data indication extension or not.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN 0
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, it has not received the response (ServerHello or
- * HelloRetryRequest) from the server yet. The transform to protect early data
- * is not set and early data cannot be sent yet.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_SENT 4
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, it has not received the response (ServerHello or
- * HelloRetryRequest) from the server yet. The transform to protect early data
- * has been set and early data can be written now.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE 5
-
-/*
- * The client has sent an early data indication extension in its first
- * ClientHello, the server has accepted them and the client has received the
- * server Finished message. It cannot send early data to the server anymore.
- */
-#define MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED 6
-#endif /* MBEDTLS_SSL_CLI_C */
-
+int mbedtls_ssl_tls13_check_early_data_len(mbedtls_ssl_context *ssl,
+                                           size_t early_data_len);
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
diff --git a/library/ssl_msg.c b/library/ssl_msg.c
index c2e64c6..0c71157 100644
--- a/library/ssl_msg.c
+++ b/library/ssl_msg.c
@@ -4005,7 +4005,11 @@
                  MBEDTLS_SSL_EARLY_DATA_TRY_TO_DEPROTECT_AND_DISCARD)) {
                 MBEDTLS_SSL_DEBUG_MSG(
                     3, ("EarlyData: deprotect and discard app data records."));
-                /* TODO: Add max_early_data_size check here, see issue 6347 */
+
+                ret = mbedtls_ssl_tls13_check_early_data_len(ssl, rec->data_len);
+                if (ret != 0) {
+                    return ret;
+                }
                 ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
             }
 #endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_SRV_C */
@@ -4129,9 +4133,15 @@
      */
     if (ssl->discard_early_data_record == MBEDTLS_SSL_EARLY_DATA_DISCARD) {
         if (rec->type == MBEDTLS_SSL_MSG_APPLICATION_DATA) {
+
+            ret = mbedtls_ssl_tls13_check_early_data_len(ssl, rec->data_len);
+            if (ret != 0) {
+                return ret;
+            }
+
             MBEDTLS_SSL_DEBUG_MSG(
                 3, ("EarlyData: Ignore application message before 2nd ClientHello"));
-            /* TODO: Add max_early_data_size check here, see issue 6347 */
+
             return MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
         } else if (rec->type == MBEDTLS_SSL_MSG_HANDSHAKE) {
             ssl->discard_early_data_record = MBEDTLS_SSL_EARLY_DATA_NO_DISCARD;
@@ -6058,6 +6068,94 @@
     return ret;
 }
 
+#if defined(MBEDTLS_SSL_EARLY_DATA) && defined(MBEDTLS_SSL_CLI_C)
+int mbedtls_ssl_write_early_data(mbedtls_ssl_context *ssl,
+                                 const unsigned char *buf, size_t len)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    const struct mbedtls_ssl_config *conf;
+    int written_data_len = 0;
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("=> write early_data"));
+
+    if (ssl == NULL || (conf = ssl->conf) == NULL) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    if (conf->endpoint != MBEDTLS_SSL_IS_CLIENT) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    if ((!mbedtls_ssl_conf_is_tls13_enabled(conf)) ||
+        (conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM) ||
+        (conf->early_data_enabled != MBEDTLS_SSL_EARLY_DATA_ENABLED)) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    if (ssl->tls_version != MBEDTLS_SSL_VERSION_TLS1_3) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    /*
+     * If we are at the beginning of the handshake, the early data status being
+     * equal to MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN or
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_SENT advance the handshake just
+     * enough to be able to send early data if possible. That way, we can
+     * guarantee that when starting the handshake with this function we will
+     * send at least one record of early data. Note that when the status is
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_SENT and not yet
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE, we cannot send early data yet
+     * as the early data outbound transform has not been set as we may have to
+     * first send a dummy CCS in clear.
+     */
+    if ((ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN) ||
+        (ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_SENT)) {
+        while ((ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN) ||
+               (ssl->early_data_status == MBEDTLS_SSL_EARLY_DATA_STATUS_SENT)) {
+            ret = mbedtls_ssl_handshake_step(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake_step", ret);
+                return ret;
+            }
+
+            ret = mbedtls_ssl_flush_output(ssl);
+            if (ret != 0) {
+                MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_flush_output", ret);
+                return ret;
+            }
+        }
+    } else {
+        /*
+         * If we are past the point where we can send early data, return
+         * immediatly. Otherwise, progress the handshake as much as possible to
+         * not delay it too much. If we reach a point where we can still send
+         * early data, then we will send some.
+         */
+        if ((ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE) &&
+            (ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED)) {
+            return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+        }
+
+        ret = mbedtls_ssl_handshake(ssl);
+        if ((ret != 0) && (ret != MBEDTLS_ERR_SSL_WANT_READ)) {
+            MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_handshake", ret);
+            return ret;
+        }
+    }
+
+    if ((ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE) &&
+        (ssl->early_data_status != MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED)) {
+        return MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA;
+    }
+
+    written_data_len = ssl_write_real(ssl, buf, len);
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("<= write early_data, len=%d", written_data_len));
+
+    return written_data_len;
+}
+#endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_CLI_C */
+
 /*
  * Notify the peer that the connection is being closed
  */
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 5b0a4b9..1bfd180 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -432,10 +432,6 @@
 static int ssl_calc_finished_tls_sha384(mbedtls_ssl_context *, unsigned char *, int);
 #endif /* MBEDTLS_MD_CAN_SHA384*/
 
-static size_t ssl_tls12_session_save(const mbedtls_ssl_session *session,
-                                     unsigned char *buf,
-                                     size_t buf_len);
-
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_tls12_session_load(mbedtls_ssl_session *session,
                                   const unsigned char *buf,
@@ -1105,6 +1101,7 @@
 #if defined(MBEDTLS_SSL_SRV_C)
     ssl->discard_early_data_record = MBEDTLS_SSL_EARLY_DATA_NO_DISCARD;
 #endif
+    ssl->total_early_data_size = 0;
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
     /* Initialize structures */
@@ -1365,6 +1362,11 @@
     }
 #endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
 
+    if (ssl->conf->f_rng == NULL) {
+        MBEDTLS_SSL_DEBUG_MSG(1, ("no RNG provided"));
+        return MBEDTLS_ERR_SSL_NO_RNG;
+    }
+
     /* Space for further checks */
 
     return 0;
@@ -2448,282 +2450,6 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
 
-#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
-/* Serialization of TLS 1.3 sessions:
- *
- *     struct {
- *       opaque hostname<0..2^16-1>;
- *       uint64 ticket_reception_time;
- *       uint32 ticket_lifetime;
- *       opaque ticket<1..2^16-1>;
- *     } ClientOnlyData;
- *
- *     struct {
- *       uint32 ticket_age_add;
- *       uint8 ticket_flags;
- *       opaque resumption_key<0..255>;
- *       uint32 max_early_data_size;
- *       uint16 record_size_limit;
- *       select ( endpoint ) {
- *            case client: ClientOnlyData;
- *            case server: uint64 ticket_creation_time;
- *        };
- *     } serialized_session_tls13;
- *
- */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
-                                  unsigned char *buf,
-                                  size_t buf_len,
-                                  size_t *olen)
-{
-    unsigned char *p = buf;
-#if defined(MBEDTLS_SSL_CLI_C) && \
-    defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-    size_t hostname_len = (session->hostname == NULL) ?
-                          0 : strlen(session->hostname) + 1;
-#endif
-    size_t needed =   4  /* ticket_age_add */
-                    + 1  /* ticket_flags */
-                    + 1; /* resumption_key length */
-    *olen = 0;
-
-    if (session->resumption_key_len > MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-    needed += session->resumption_key_len;  /* resumption_key */
-
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    needed += 4;                            /* max_early_data_size */
-#endif
-#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
-    needed += 2;                            /* record_size_limit */
-#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
-
-#if defined(MBEDTLS_HAVE_TIME)
-    needed += 8; /* ticket_creation_time or ticket_reception_time */
-#endif
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        needed +=  2                        /* hostname_len */
-                  + hostname_len;           /* hostname */
-#endif
-
-        needed +=   4                       /* ticket_lifetime */
-                  + 2;                      /* ticket_len */
-
-        /* Check size_t overflow */
-        if (session->ticket_len > SIZE_MAX - needed) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        needed += session->ticket_len;      /* ticket */
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-
-    *olen = needed;
-    if (needed > buf_len) {
-        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
-    }
-
-    MBEDTLS_PUT_UINT32_BE(session->ticket_age_add, p, 0);
-    p[4] = session->ticket_flags;
-
-    /* save resumption_key */
-    p[5] = session->resumption_key_len;
-    p += 6;
-    memcpy(p, session->resumption_key, session->resumption_key_len);
-    p += session->resumption_key_len;
-
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    MBEDTLS_PUT_UINT32_BE(session->max_early_data_size, p, 0);
-    p += 4;
-#endif
-#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
-    MBEDTLS_PUT_UINT16_BE(session->record_size_limit, p, 0);
-    p += 2;
-#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
-
-#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
-        p += 8;
-    }
-#endif /* MBEDTLS_HAVE_TIME */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        MBEDTLS_PUT_UINT16_BE(hostname_len, p, 0);
-        p += 2;
-        if (hostname_len > 0) {
-            /* save host name */
-            memcpy(p, session->hostname, hostname_len);
-            p += hostname_len;
-        }
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_HAVE_TIME)
-        MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_reception_time, p, 0);
-        p += 8;
-#endif
-        MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0);
-        p += 4;
-
-        MBEDTLS_PUT_UINT16_BE(session->ticket_len, p, 0);
-        p += 2;
-
-        if (session->ticket != NULL && session->ticket_len > 0) {
-            memcpy(p, session->ticket, session->ticket_len);
-            p += session->ticket_len;
-        }
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-    return 0;
-}
-
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_session_load(mbedtls_ssl_session *session,
-                                  const unsigned char *buf,
-                                  size_t len)
-{
-    const unsigned char *p = buf;
-    const unsigned char *end = buf + len;
-
-    if (end - p < 6) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-    session->ticket_age_add = MBEDTLS_GET_UINT32_BE(p, 0);
-    session->ticket_flags = p[4];
-
-    /* load resumption_key */
-    session->resumption_key_len = p[5];
-    p += 6;
-
-    if (end - p < session->resumption_key_len) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    if (sizeof(session->resumption_key) < session->resumption_key_len) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-    memcpy(session->resumption_key, p, session->resumption_key_len);
-    p += session->resumption_key_len;
-
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    if (end - p < 4) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-    session->max_early_data_size = MBEDTLS_GET_UINT32_BE(p, 0);
-    p += 4;
-#endif
-#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
-    if (end - p < 2) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-    session->record_size_limit = MBEDTLS_GET_UINT16_BE(p, 0);
-    p += 2;
-#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
-
-#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        if (end - p < 8) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
-        p += 8;
-    }
-#endif /* MBEDTLS_HAVE_TIME */
-
-#if defined(MBEDTLS_SSL_CLI_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
-#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
-        size_t hostname_len;
-        /* load host name */
-        if (end - p < 2) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        hostname_len = MBEDTLS_GET_UINT16_BE(p, 0);
-        p += 2;
-
-        if (end - p < (long int) hostname_len) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        if (hostname_len > 0) {
-            session->hostname = mbedtls_calloc(1, hostname_len);
-            if (session->hostname == NULL) {
-                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-            }
-            memcpy(session->hostname, p, hostname_len);
-            p += hostname_len;
-        }
-#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
-
-#if defined(MBEDTLS_HAVE_TIME)
-        if (end - p < 8) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        session->ticket_reception_time = MBEDTLS_GET_UINT64_BE(p, 0);
-        p += 8;
-#endif
-        if (end - p < 4) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        session->ticket_lifetime = MBEDTLS_GET_UINT32_BE(p, 0);
-        p += 4;
-
-        if (end - p <  2) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        session->ticket_len = MBEDTLS_GET_UINT16_BE(p, 0);
-        p += 2;
-
-        if (end - p < (long int) session->ticket_len) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        if (session->ticket_len > 0) {
-            session->ticket = mbedtls_calloc(1, session->ticket_len);
-            if (session->ticket == NULL) {
-                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-            }
-            memcpy(session->ticket, p, session->ticket_len);
-            p += session->ticket_len;
-        }
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-
-    return 0;
-
-}
-#else /* MBEDTLS_SSL_SESSION_TICKETS */
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
-                                  unsigned char *buf,
-                                  size_t buf_len,
-                                  size_t *olen)
-{
-    ((void) session);
-    ((void) buf);
-    ((void) buf_len);
-    *olen = 0;
-    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-}
-
-static int ssl_tls13_session_load(const mbedtls_ssl_session *session,
-                                  unsigned char *buf,
-                                  size_t buf_len)
-{
-    ((void) session);
-    ((void) buf);
-    ((void) buf_len);
-    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-}
-#endif /* !MBEDTLS_SSL_SESSION_TICKETS */
-#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
-
 psa_status_t mbedtls_ssl_cipher_to_psa(mbedtls_cipher_type_t mbedtls_cipher_type,
                                        size_t taglen,
                                        psa_algorithm_t *alg,
@@ -3640,6 +3366,630 @@
 }
 #endif /* MBEDTLS_SSL_CLI_C */
 
+#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
+
+/* Serialization of TLS 1.2 sessions
+ *
+ * For more detail, see the description of ssl_session_save().
+ */
+static size_t ssl_tls12_session_save(const mbedtls_ssl_session *session,
+                                     unsigned char *buf,
+                                     size_t buf_len)
+{
+    unsigned char *p = buf;
+    size_t used = 0;
+
+#if defined(MBEDTLS_HAVE_TIME)
+    uint64_t start;
+#endif
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+    size_t cert_len;
+#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+    /*
+     * Time
+     */
+#if defined(MBEDTLS_HAVE_TIME)
+    used += 8;
+
+    if (used <= buf_len) {
+        start = (uint64_t) session->start;
+
+        MBEDTLS_PUT_UINT64_BE(start, p, 0);
+        p += 8;
+    }
+#endif /* MBEDTLS_HAVE_TIME */
+
+    /*
+     * Basic mandatory fields
+     */
+    used += 1 /* id_len */
+            + sizeof(session->id)
+            + sizeof(session->master)
+            + 4; /* verify_result */
+
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_0(session->id_len);
+        memcpy(p, session->id, 32);
+        p += 32;
+
+        memcpy(p, session->master, 48);
+        p += 48;
+
+        MBEDTLS_PUT_UINT32_BE(session->verify_result, p, 0);
+        p += 4;
+    }
+
+    /*
+     * Peer's end-entity certificate
+     */
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+    if (session->peer_cert == NULL) {
+        cert_len = 0;
+    } else {
+        cert_len = session->peer_cert->raw.len;
+    }
+
+    used += 3 + cert_len;
+
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_2(cert_len);
+        *p++ = MBEDTLS_BYTE_1(cert_len);
+        *p++ = MBEDTLS_BYTE_0(cert_len);
+
+        if (session->peer_cert != NULL) {
+            memcpy(p, session->peer_cert->raw.p, cert_len);
+            p += cert_len;
+        }
+    }
+#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+    if (session->peer_cert_digest != NULL) {
+        used += 1 /* type */ + 1 /* length */ + session->peer_cert_digest_len;
+        if (used <= buf_len) {
+            *p++ = (unsigned char) session->peer_cert_digest_type;
+            *p++ = (unsigned char) session->peer_cert_digest_len;
+            memcpy(p, session->peer_cert_digest,
+                   session->peer_cert_digest_len);
+            p += session->peer_cert_digest_len;
+        }
+    } else {
+        used += 2;
+        if (used <= buf_len) {
+            *p++ = (unsigned char) MBEDTLS_MD_NONE;
+            *p++ = 0;
+        }
+    }
+#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+    /*
+     * Session ticket if any, plus associated data
+     */
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+#if defined(MBEDTLS_SSL_CLI_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        used += 3 + session->ticket_len + 4; /* len + ticket + lifetime */
+
+        if (used <= buf_len) {
+            *p++ = MBEDTLS_BYTE_2(session->ticket_len);
+            *p++ = MBEDTLS_BYTE_1(session->ticket_len);
+            *p++ = MBEDTLS_BYTE_0(session->ticket_len);
+
+            if (session->ticket != NULL) {
+                memcpy(p, session->ticket, session->ticket_len);
+                p += session->ticket_len;
+            }
+
+            MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0);
+            p += 4;
+        }
+    }
+#endif /* MBEDTLS_SSL_CLI_C */
+#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        used += 8;
+
+        if (used <= buf_len) {
+            MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
+            p += 8;
+        }
+    }
+#endif /* MBEDTLS_HAVE_TIME && MBEDTLS_SSL_SRV_C */
+#endif /* MBEDTLS_SSL_SESSION_TICKETS */
+
+    /*
+     * Misc extension-related info
+     */
+#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+    used += 1;
+
+    if (used <= buf_len) {
+        *p++ = session->mfl_code;
+    }
+#endif
+
+#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
+    used += 1;
+
+    if (used <= buf_len) {
+        *p++ = MBEDTLS_BYTE_0(session->encrypt_then_mac);
+    }
+#endif
+
+    return used;
+}
+
+MBEDTLS_CHECK_RETURN_CRITICAL
+static int ssl_tls12_session_load(mbedtls_ssl_session *session,
+                                  const unsigned char *buf,
+                                  size_t len)
+{
+#if defined(MBEDTLS_HAVE_TIME)
+    uint64_t start;
+#endif
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+    size_t cert_len;
+#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+    const unsigned char *p = buf;
+    const unsigned char * const end = buf + len;
+
+    /*
+     * Time
+     */
+#if defined(MBEDTLS_HAVE_TIME)
+    if (8 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    start = MBEDTLS_GET_UINT64_BE(p, 0);
+    p += 8;
+
+    session->start = (time_t) start;
+#endif /* MBEDTLS_HAVE_TIME */
+
+    /*
+     * Basic mandatory fields
+     */
+    if (1 + 32 + 48 + 4 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    session->id_len = *p++;
+    memcpy(session->id, p, 32);
+    p += 32;
+
+    memcpy(session->master, p, 48);
+    p += 48;
+
+    session->verify_result = MBEDTLS_GET_UINT32_BE(p, 0);
+    p += 4;
+
+    /* Immediately clear invalid pointer values that have been read, in case
+     * we exit early before we replaced them with valid ones. */
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+    session->peer_cert = NULL;
+#else
+    session->peer_cert_digest = NULL;
+#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
+    session->ticket = NULL;
+#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
+
+    /*
+     * Peer certificate
+     */
+#if defined(MBEDTLS_X509_CRT_PARSE_C)
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+    /* Deserialize CRT from the end of the ticket. */
+    if (3 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    cert_len = MBEDTLS_GET_UINT24_BE(p, 0);
+    p += 3;
+
+    if (cert_len != 0) {
+        int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+
+        if (cert_len > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        session->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
+
+        if (session->peer_cert == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
+
+        mbedtls_x509_crt_init(session->peer_cert);
+
+        if ((ret = mbedtls_x509_crt_parse_der(session->peer_cert,
+                                              p, cert_len)) != 0) {
+            mbedtls_x509_crt_free(session->peer_cert);
+            mbedtls_free(session->peer_cert);
+            session->peer_cert = NULL;
+            return ret;
+        }
+
+        p += cert_len;
+    }
+#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+    /* Deserialize CRT digest from the end of the ticket. */
+    if (2 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    session->peer_cert_digest_type = (mbedtls_md_type_t) *p++;
+    session->peer_cert_digest_len  = (size_t) *p++;
+
+    if (session->peer_cert_digest_len != 0) {
+        const mbedtls_md_info_t *md_info =
+            mbedtls_md_info_from_type(session->peer_cert_digest_type);
+        if (md_info == NULL) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        if (session->peer_cert_digest_len != mbedtls_md_get_size(md_info)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        if (session->peer_cert_digest_len > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        session->peer_cert_digest =
+            mbedtls_calloc(1, session->peer_cert_digest_len);
+        if (session->peer_cert_digest == NULL) {
+            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+        }
+
+        memcpy(session->peer_cert_digest, p,
+               session->peer_cert_digest_len);
+        p += session->peer_cert_digest_len;
+    }
+#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
+#endif /* MBEDTLS_X509_CRT_PARSE_C */
+
+    /*
+     * Session ticket and associated data
+     */
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+#if defined(MBEDTLS_SSL_CLI_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+        if (3 > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        session->ticket_len = MBEDTLS_GET_UINT24_BE(p, 0);
+        p += 3;
+
+        if (session->ticket_len != 0) {
+            if (session->ticket_len > (size_t) (end - p)) {
+                return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+            }
+
+            session->ticket = mbedtls_calloc(1, session->ticket_len);
+            if (session->ticket == NULL) {
+                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+            }
+
+            memcpy(session->ticket, p, session->ticket_len);
+            p += session->ticket_len;
+        }
+
+        if (4 > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        session->ticket_lifetime = MBEDTLS_GET_UINT32_BE(p, 0);
+        p += 4;
+    }
+#endif /* MBEDTLS_SSL_CLI_C */
+#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        if (8 > (size_t) (end - p)) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
+        p += 8;
+    }
+#endif /* MBEDTLS_HAVE_TIME && MBEDTLS_SSL_SRV_C */
+#endif /* MBEDTLS_SSL_SESSION_TICKETS */
+
+    /*
+     * Misc extension-related info
+     */
+#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+    if (1 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    session->mfl_code = *p++;
+#endif
+
+#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
+    if (1 > (size_t) (end - p)) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    session->encrypt_then_mac = *p++;
+#endif
+
+    /* Done, should have consumed entire buffer */
+    if (p != end) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    return 0;
+}
+
+#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
+
+#if defined(MBEDTLS_SSL_PROTO_TLS1_3)
+/* Serialization of TLS 1.3 sessions:
+ *
+ * For more detail, see the description of ssl_session_save().
+ */
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+MBEDTLS_CHECK_RETURN_CRITICAL
+static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
+                                  unsigned char *buf,
+                                  size_t buf_len,
+                                  size_t *olen)
+{
+    unsigned char *p = buf;
+#if defined(MBEDTLS_SSL_CLI_C) && \
+    defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+    size_t hostname_len = (session->hostname == NULL) ?
+                          0 : strlen(session->hostname) + 1;
+#endif
+    size_t needed =   4  /* ticket_age_add */
+                    + 1  /* ticket_flags */
+                    + 1; /* resumption_key length */
+    *olen = 0;
+
+    if (session->resumption_key_len > MBEDTLS_SSL_TLS1_3_TICKET_RESUMPTION_KEY_LEN) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    needed += session->resumption_key_len;  /* resumption_key */
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    needed += 4;                            /* max_early_data_size */
+#endif
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+    needed += 2;                            /* record_size_limit */
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
+#if defined(MBEDTLS_HAVE_TIME)
+    needed += 8; /* ticket_creation_time or ticket_reception_time */
+#endif
+
+#if defined(MBEDTLS_SSL_CLI_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+        needed +=  2                        /* hostname_len */
+                  + hostname_len;           /* hostname */
+#endif
+
+        needed +=   4                       /* ticket_lifetime */
+                  + 2;                      /* ticket_len */
+
+        /* Check size_t overflow */
+        if (session->ticket_len > SIZE_MAX - needed) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+
+        needed += session->ticket_len;      /* ticket */
+    }
+#endif /* MBEDTLS_SSL_CLI_C */
+
+    *olen = needed;
+    if (needed > buf_len) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
+
+    MBEDTLS_PUT_UINT32_BE(session->ticket_age_add, p, 0);
+    p[4] = session->ticket_flags;
+
+    /* save resumption_key */
+    p[5] = session->resumption_key_len;
+    p += 6;
+    memcpy(p, session->resumption_key, session->resumption_key_len);
+    p += session->resumption_key_len;
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    MBEDTLS_PUT_UINT32_BE(session->max_early_data_size, p, 0);
+    p += 4;
+#endif
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+    MBEDTLS_PUT_UINT16_BE(session->record_size_limit, p, 0);
+    p += 2;
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
+#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
+        p += 8;
+    }
+#endif /* MBEDTLS_HAVE_TIME */
+
+#if defined(MBEDTLS_SSL_CLI_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+        MBEDTLS_PUT_UINT16_BE(hostname_len, p, 0);
+        p += 2;
+        if (hostname_len > 0) {
+            /* save host name */
+            memcpy(p, session->hostname, hostname_len);
+            p += hostname_len;
+        }
+#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
+
+#if defined(MBEDTLS_HAVE_TIME)
+        MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_reception_time, p, 0);
+        p += 8;
+#endif
+        MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0);
+        p += 4;
+
+        MBEDTLS_PUT_UINT16_BE(session->ticket_len, p, 0);
+        p += 2;
+
+        if (session->ticket != NULL && session->ticket_len > 0) {
+            memcpy(p, session->ticket, session->ticket_len);
+            p += session->ticket_len;
+        }
+    }
+#endif /* MBEDTLS_SSL_CLI_C */
+    return 0;
+}
+
+MBEDTLS_CHECK_RETURN_CRITICAL
+static int ssl_tls13_session_load(mbedtls_ssl_session *session,
+                                  const unsigned char *buf,
+                                  size_t len)
+{
+    const unsigned char *p = buf;
+    const unsigned char *end = buf + len;
+
+    if (end - p < 6) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    session->ticket_age_add = MBEDTLS_GET_UINT32_BE(p, 0);
+    session->ticket_flags = p[4];
+
+    /* load resumption_key */
+    session->resumption_key_len = p[5];
+    p += 6;
+
+    if (end - p < session->resumption_key_len) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    if (sizeof(session->resumption_key) < session->resumption_key_len) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    memcpy(session->resumption_key, p, session->resumption_key_len);
+    p += session->resumption_key_len;
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+    if (end - p < 4) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    session->max_early_data_size = MBEDTLS_GET_UINT32_BE(p, 0);
+    p += 4;
+#endif
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+    if (end - p < 2) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+    session->record_size_limit = MBEDTLS_GET_UINT16_BE(p, 0);
+    p += 2;
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
+#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
+        if (end - p < 8) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
+        p += 8;
+    }
+#endif /* MBEDTLS_HAVE_TIME */
+
+#if defined(MBEDTLS_SSL_CLI_C)
+    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+        size_t hostname_len;
+        /* load host name */
+        if (end - p < 2) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        hostname_len = MBEDTLS_GET_UINT16_BE(p, 0);
+        p += 2;
+
+        if (end - p < (long int) hostname_len) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        if (hostname_len > 0) {
+            session->hostname = mbedtls_calloc(1, hostname_len);
+            if (session->hostname == NULL) {
+                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+            }
+            memcpy(session->hostname, p, hostname_len);
+            p += hostname_len;
+        }
+#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
+
+#if defined(MBEDTLS_HAVE_TIME)
+        if (end - p < 8) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        session->ticket_reception_time = MBEDTLS_GET_UINT64_BE(p, 0);
+        p += 8;
+#endif
+        if (end - p < 4) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        session->ticket_lifetime = MBEDTLS_GET_UINT32_BE(p, 0);
+        p += 4;
+
+        if (end - p <  2) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        session->ticket_len = MBEDTLS_GET_UINT16_BE(p, 0);
+        p += 2;
+
+        if (end - p < (long int) session->ticket_len) {
+            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+        }
+        if (session->ticket_len > 0) {
+            session->ticket = mbedtls_calloc(1, session->ticket_len);
+            if (session->ticket == NULL) {
+                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
+            }
+            memcpy(session->ticket, p, session->ticket_len);
+            p += session->ticket_len;
+        }
+    }
+#endif /* MBEDTLS_SSL_CLI_C */
+
+    return 0;
+
+}
+#else /* MBEDTLS_SSL_SESSION_TICKETS */
+MBEDTLS_CHECK_RETURN_CRITICAL
+static int ssl_tls13_session_save(const mbedtls_ssl_session *session,
+                                  unsigned char *buf,
+                                  size_t buf_len,
+                                  size_t *olen)
+{
+    ((void) session);
+    ((void) buf);
+    ((void) buf_len);
+    *olen = 0;
+    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
+}
+
+static int ssl_tls13_session_load(const mbedtls_ssl_session *session,
+                                  unsigned char *buf,
+                                  size_t buf_len)
+{
+    ((void) session);
+    ((void) buf);
+    ((void) buf_len);
+    return MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
+}
+#endif /* !MBEDTLS_SSL_SESSION_TICKETS */
+#endif /* MBEDTLS_SSL_PROTO_TLS1_3 */
+
 /*
  * Define ticket header determining Mbed TLS version
  * and structure of the ticket.
@@ -3662,6 +4012,12 @@
 #define SSL_SERIALIZED_SESSION_CONFIG_CRT 0
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
 
+#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT 1
+#else
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT 0
+#endif /* MBEDTLS_SSL_SESSION_TICKETS */
+
 #if defined(MBEDTLS_SSL_CLI_C) && defined(MBEDTLS_SSL_SESSION_TICKETS)
 #define SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET 1
 #else
@@ -3686,12 +4042,34 @@
 #define SSL_SERIALIZED_SESSION_CONFIG_TICKET 0
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
+#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+#define SSL_SERIALIZED_SESSION_CONFIG_SNI 1
+#else
+#define SSL_SERIALIZED_SESSION_CONFIG_SNI 0
+#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+#define SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA 1
+#else
+#define SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA 0
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
+#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+#define SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE 1
+#else
+#define SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE 0
+#endif /* MBEDTLS_SSL_RECORD_SIZE_LIMIT */
+
 #define SSL_SERIALIZED_SESSION_CONFIG_TIME_BIT          0
 #define SSL_SERIALIZED_SESSION_CONFIG_CRT_BIT           1
 #define SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT 2
 #define SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT           3
 #define SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT           4
 #define SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT        5
+#define SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT 6
+#define SSL_SERIALIZED_SESSION_CONFIG_SNI_BIT           7
+#define SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA_BIT    8
+#define SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE_BIT   9
 
 #define SSL_SERIALIZED_SESSION_CONFIG_BITFLAG                           \
     ((uint16_t) (                                                      \
@@ -3701,7 +4079,14 @@
              SSL_SERIALIZED_SESSION_CONFIG_CLIENT_TICKET_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_MFL << SSL_SERIALIZED_SESSION_CONFIG_MFL_BIT) | \
          (SSL_SERIALIZED_SESSION_CONFIG_ETM << SSL_SERIALIZED_SESSION_CONFIG_ETM_BIT) | \
-         (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT)))
+         (SSL_SERIALIZED_SESSION_CONFIG_TICKET << SSL_SERIALIZED_SESSION_CONFIG_TICKET_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT << \
+             SSL_SERIALIZED_SESSION_CONFIG_KEEP_PEER_CRT_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_SNI << SSL_SERIALIZED_SESSION_CONFIG_SNI_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA << \
+             SSL_SERIALIZED_SESSION_CONFIG_EARLY_DATA_BIT) | \
+         (SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE << \
+             SSL_SERIALIZED_SESSION_CONFIG_RECORD_SIZE_BIT)))
 
 static const unsigned char ssl_serialized_session_header[] = {
     MBEDTLS_VERSION_MAJOR,
@@ -3715,7 +4100,77 @@
  * Serialize a session in the following format:
  * (in the presentation language of TLS, RFC 8446 section 3)
  *
- *  struct {
+ * TLS 1.2 session:
+ *
+ * struct {
+ * #if defined(MBEDTLS_SSL_SESSION_TICKETS)
+ *    opaque ticket<0..2^24-1>;       // length 0 means no ticket
+ *    uint32 ticket_lifetime;
+ * #endif
+ * } ClientOnlyData;
+ *
+ * struct {
+ * #if defined(MBEDTLS_HAVE_TIME)
+ *    uint64 start_time;
+ * #endif
+ *     uint8 session_id_len;           // at most 32
+ *     opaque session_id[32];
+ *     opaque master[48];              // fixed length in the standard
+ *     uint32 verify_result;
+ * #if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE
+ *    opaque peer_cert<0..2^24-1>;    // length 0 means no peer cert
+ * #else
+ *    uint8 peer_cert_digest_type;
+ *    opaque peer_cert_digest<0..2^8-1>
+ * #endif
+ *     select (endpoint) {
+ *         case client: ClientOnlyData;
+ *         case server: uint64 ticket_creation_time;
+ *     };
+ * #if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
+ *    uint8 mfl_code;                 // up to 255 according to standard
+ * #endif
+ * #if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
+ *    uint8 encrypt_then_mac;         // 0 or 1
+ * #endif
+ * } serialized_session_tls12;
+ *
+ *
+ * TLS 1.3 Session:
+ *
+ * struct {
+ * #if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
+ *    opaque hostname<0..2^16-1>;
+ * #endif
+ * #if defined(MBEDTLS_HAVE_TIME)
+ *    uint64 ticket_reception_time;
+ * #endif
+ *    uint32 ticket_lifetime;
+ *    opaque ticket<1..2^16-1>;
+ * } ClientOnlyData;
+ *
+ * struct {
+ *    uint32 ticket_age_add;
+ *    uint8 ticket_flags;
+ *    opaque resumption_key<0..255>;
+ * #if defined(MBEDTLS_SSL_EARLY_DATA)
+ *    uint32 max_early_data_size;
+ * #endif
+ * #if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
+ *    uint16 record_size_limit;
+ * #endif
+ *    select ( endpoint ) {
+ *         case client: ClientOnlyData;
+ * #if defined(MBEDTLS_HAVE_TIME)
+ *         case server: uint64 ticket_creation_time;
+ * #endif
+ *     };
+ * } serialized_session_tls13;
+ *
+ *
+ * SSL session:
+ *
+ * struct {
  *
  *    opaque mbedtls_version[3];   // library version: major, minor, patch
  *    opaque session_format[2];    // library-version specific 16-bit field
@@ -3733,6 +4188,8 @@
  *    uint8_t minor_ver;           // Protocol minor version. Possible values:
  *                                 // - TLS 1.2 (0x0303)
  *                                 // - TLS 1.3 (0x0304)
+ *    uint8_t endpoint;
+ *    uint16_t ciphersuite;
  *
  *    select (serialized_session.tls_version) {
  *
@@ -8948,385 +9405,6 @@
 
 #endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
-/* Serialization of TLS 1.2 sessions:
- *
- * struct {
- *     opaque ticket<0..2^24-1>;       // length 0 means no ticket
- *     uint32 ticket_lifetime;
- * } ClientOnlyData;
- *
- * struct {
- *     uint64 start_time;
- *     uint8 session_id_len;           // at most 32
- *     opaque session_id[32];
- *     opaque master[48];              // fixed length in the standard
- *     uint32 verify_result;
- *     opaque peer_cert<0..2^24-1>;    // length 0 means no peer cert
- *     select (endpoint) {
- *         case client: ClientOnlyData;
- *         case server: uint64 ticket_creation_time;
- *     };
- *     uint8 mfl_code;                 // up to 255 according to standard
- *     uint8 encrypt_then_mac;         // 0 or 1
- * } serialized_session_tls12;
- */
-static size_t ssl_tls12_session_save(const mbedtls_ssl_session *session,
-                                     unsigned char *buf,
-                                     size_t buf_len)
-{
-    unsigned char *p = buf;
-    size_t used = 0;
-
-#if defined(MBEDTLS_HAVE_TIME)
-    uint64_t start;
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    size_t cert_len;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    /*
-     * Time
-     */
-#if defined(MBEDTLS_HAVE_TIME)
-    used += 8;
-
-    if (used <= buf_len) {
-        start = (uint64_t) session->start;
-
-        MBEDTLS_PUT_UINT64_BE(start, p, 0);
-        p += 8;
-    }
-#endif /* MBEDTLS_HAVE_TIME */
-
-    /*
-     * Basic mandatory fields
-     */
-    used += 1 /* id_len */
-            + sizeof(session->id)
-            + sizeof(session->master)
-            + 4; /* verify_result */
-
-    if (used <= buf_len) {
-        *p++ = MBEDTLS_BYTE_0(session->id_len);
-        memcpy(p, session->id, 32);
-        p += 32;
-
-        memcpy(p, session->master, 48);
-        p += 48;
-
-        MBEDTLS_PUT_UINT32_BE(session->verify_result, p, 0);
-        p += 4;
-    }
-
-    /*
-     * Peer's end-entity certificate
-     */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    if (session->peer_cert == NULL) {
-        cert_len = 0;
-    } else {
-        cert_len = session->peer_cert->raw.len;
-    }
-
-    used += 3 + cert_len;
-
-    if (used <= buf_len) {
-        *p++ = MBEDTLS_BYTE_2(cert_len);
-        *p++ = MBEDTLS_BYTE_1(cert_len);
-        *p++ = MBEDTLS_BYTE_0(cert_len);
-
-        if (session->peer_cert != NULL) {
-            memcpy(p, session->peer_cert->raw.p, cert_len);
-            p += cert_len;
-        }
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    if (session->peer_cert_digest != NULL) {
-        used += 1 /* type */ + 1 /* length */ + session->peer_cert_digest_len;
-        if (used <= buf_len) {
-            *p++ = (unsigned char) session->peer_cert_digest_type;
-            *p++ = (unsigned char) session->peer_cert_digest_len;
-            memcpy(p, session->peer_cert_digest,
-                   session->peer_cert_digest_len);
-            p += session->peer_cert_digest_len;
-        }
-    } else {
-        used += 2;
-        if (used <= buf_len) {
-            *p++ = (unsigned char) MBEDTLS_MD_NONE;
-            *p++ = 0;
-        }
-    }
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    /*
-     * Session ticket if any, plus associated data
-     */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#if defined(MBEDTLS_SSL_CLI_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
-        used += 3 + session->ticket_len + 4; /* len + ticket + lifetime */
-
-        if (used <= buf_len) {
-            *p++ = MBEDTLS_BYTE_2(session->ticket_len);
-            *p++ = MBEDTLS_BYTE_1(session->ticket_len);
-            *p++ = MBEDTLS_BYTE_0(session->ticket_len);
-
-            if (session->ticket != NULL) {
-                memcpy(p, session->ticket, session->ticket_len);
-                p += session->ticket_len;
-            }
-
-            MBEDTLS_PUT_UINT32_BE(session->ticket_lifetime, p, 0);
-            p += 4;
-        }
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        used += 8;
-
-        if (used <= buf_len) {
-            MBEDTLS_PUT_UINT64_BE((uint64_t) session->ticket_creation_time, p, 0);
-            p += 8;
-        }
-    }
-#endif /* MBEDTLS_HAVE_TIME && MBEDTLS_SSL_SRV_C */
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-    /*
-     * Misc extension-related info
-     */
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    used += 1;
-
-    if (used <= buf_len) {
-        *p++ = session->mfl_code;
-    }
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    used += 1;
-
-    if (used <= buf_len) {
-        *p++ = MBEDTLS_BYTE_0(session->encrypt_then_mac);
-    }
-#endif
-
-    return used;
-}
-
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls12_session_load(mbedtls_ssl_session *session,
-                                  const unsigned char *buf,
-                                  size_t len)
-{
-#if defined(MBEDTLS_HAVE_TIME)
-    uint64_t start;
-#endif
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    size_t cert_len;
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    const unsigned char *p = buf;
-    const unsigned char * const end = buf + len;
-
-    /*
-     * Time
-     */
-#if defined(MBEDTLS_HAVE_TIME)
-    if (8 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    start = MBEDTLS_GET_UINT64_BE(p, 0);
-    p += 8;
-
-    session->start = (time_t) start;
-#endif /* MBEDTLS_HAVE_TIME */
-
-    /*
-     * Basic mandatory fields
-     */
-    if (1 + 32 + 48 + 4 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    session->id_len = *p++;
-    memcpy(session->id, p, 32);
-    p += 32;
-
-    memcpy(session->master, p, 48);
-    p += 48;
-
-    session->verify_result = MBEDTLS_GET_UINT32_BE(p, 0);
-    p += 4;
-
-    /* Immediately clear invalid pointer values that have been read, in case
-     * we exit early before we replaced them with valid ones. */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    session->peer_cert = NULL;
-#else
-    session->peer_cert_digest = NULL;
-#endif /* !MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
-    session->ticket = NULL;
-#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
-
-    /*
-     * Peer certificate
-     */
-#if defined(MBEDTLS_X509_CRT_PARSE_C)
-#if defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE)
-    /* Deserialize CRT from the end of the ticket. */
-    if (3 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    cert_len = MBEDTLS_GET_UINT24_BE(p, 0);
-    p += 3;
-
-    if (cert_len != 0) {
-        int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-
-        if (cert_len > (size_t) (end - p)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        session->peer_cert = mbedtls_calloc(1, sizeof(mbedtls_x509_crt));
-
-        if (session->peer_cert == NULL) {
-            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        }
-
-        mbedtls_x509_crt_init(session->peer_cert);
-
-        if ((ret = mbedtls_x509_crt_parse_der(session->peer_cert,
-                                              p, cert_len)) != 0) {
-            mbedtls_x509_crt_free(session->peer_cert);
-            mbedtls_free(session->peer_cert);
-            session->peer_cert = NULL;
-            return ret;
-        }
-
-        p += cert_len;
-    }
-#else /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-    /* Deserialize CRT digest from the end of the ticket. */
-    if (2 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    session->peer_cert_digest_type = (mbedtls_md_type_t) *p++;
-    session->peer_cert_digest_len  = (size_t) *p++;
-
-    if (session->peer_cert_digest_len != 0) {
-        const mbedtls_md_info_t *md_info =
-            mbedtls_md_info_from_type(session->peer_cert_digest_type);
-        if (md_info == NULL) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        if (session->peer_cert_digest_len != mbedtls_md_get_size(md_info)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        if (session->peer_cert_digest_len > (size_t) (end - p)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        session->peer_cert_digest =
-            mbedtls_calloc(1, session->peer_cert_digest_len);
-        if (session->peer_cert_digest == NULL) {
-            return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-        }
-
-        memcpy(session->peer_cert_digest, p,
-               session->peer_cert_digest_len);
-        p += session->peer_cert_digest_len;
-    }
-#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
-#endif /* MBEDTLS_X509_CRT_PARSE_C */
-
-    /*
-     * Session ticket and associated data
-     */
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-#if defined(MBEDTLS_SSL_CLI_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_CLIENT) {
-        if (3 > (size_t) (end - p)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        session->ticket_len = MBEDTLS_GET_UINT24_BE(p, 0);
-        p += 3;
-
-        if (session->ticket_len != 0) {
-            if (session->ticket_len > (size_t) (end - p)) {
-                return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-            }
-
-            session->ticket = mbedtls_calloc(1, session->ticket_len);
-            if (session->ticket == NULL) {
-                return MBEDTLS_ERR_SSL_ALLOC_FAILED;
-            }
-
-            memcpy(session->ticket, p, session->ticket_len);
-            p += session->ticket_len;
-        }
-
-        if (4 > (size_t) (end - p)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-
-        session->ticket_lifetime = MBEDTLS_GET_UINT32_BE(p, 0);
-        p += 4;
-    }
-#endif /* MBEDTLS_SSL_CLI_C */
-#if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
-    if (session->endpoint == MBEDTLS_SSL_IS_SERVER) {
-        if (8 > (size_t) (end - p)) {
-            return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        }
-        session->ticket_creation_time = MBEDTLS_GET_UINT64_BE(p, 0);
-        p += 8;
-    }
-#endif /* MBEDTLS_HAVE_TIME && MBEDTLS_SSL_SRV_C */
-#endif /* MBEDTLS_SSL_SESSION_TICKETS */
-
-    /*
-     * Misc extension-related info
-     */
-#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
-    if (1 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    session->mfl_code = *p++;
-#endif
-
-#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
-    if (1 > (size_t) (end - p)) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    session->encrypt_then_mac = *p++;
-#endif
-
-    /* Done, should have consumed entire buffer */
-    if (p != end) {
-        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-    }
-
-    return 0;
-}
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
 
 int mbedtls_ssl_validate_ciphersuite(
diff --git a/library/ssl_tls12_server.c b/library/ssl_tls12_server.c
index 53a9ce2..b49a8ae 100644
--- a/library/ssl_tls12_server.c
+++ b/library/ssl_tls12_server.c
@@ -2178,11 +2178,6 @@
     }
 #endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
 
-    if (ssl->conf->f_rng == NULL) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("no RNG provided"));
-        return MBEDTLS_ERR_SSL_NO_RNG;
-    }
-
     /*
      *     0  .   0   handshake type
      *     1  .   3   handshake length
@@ -2703,8 +2698,7 @@
                              PSA_KEY_TYPE_ECC_KEY_PAIR(ssl->handshake->xxdh_psa_type));
             psa_set_key_bits(&key_attributes, ssl->handshake->xxdh_psa_bits);
 
-            key_len = PSA_BITS_TO_BYTES(key->grp.pbits);
-            ret = mbedtls_ecp_write_key(key, buf, key_len);
+            ret = mbedtls_ecp_write_key_ext(key, &key_len, buf, sizeof(buf));
             if (ret != 0) {
                 mbedtls_platform_zeroize(buf, sizeof(buf));
                 break;
diff --git a/library/ssl_tls13_client.c b/library/ssl_tls13_client.c
index 1e8df1b..88d6c9e 100644
--- a/library/ssl_tls13_client.c
+++ b/library/ssl_tls13_client.c
@@ -1180,7 +1180,15 @@
 #endif
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    if (ssl->handshake->hello_retry_request_count == 0) {
+    /* In the first ClientHello, write the early data indication extension if
+     * necessary and update the early data status.
+     * If an HRR has been received and thus we are currently writing the
+     * second ClientHello, the second ClientHello must not contain an early
+     * data extension and the early data status must stay as it is:
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT or
+     * MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED.
+     */
+    if (!ssl->handshake->hello_retry_request_flag) {
         if (mbedtls_ssl_conf_tls13_is_some_psk_enabled(ssl) &&
             ssl_tls13_early_data_has_valid_ticket(ssl) &&
             ssl->conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED) {
@@ -1495,7 +1503,7 @@
              * to a HelloRetryRequest), it MUST abort the handshake with an
              * "unexpected_message" alert.
              */
-            if (handshake->hello_retry_request_count > 0) {
+            if (handshake->hello_retry_request_flag) {
                 MBEDTLS_SSL_DEBUG_MSG(1, ("Multiple HRRs received"));
                 MBEDTLS_SSL_PEND_FATAL_ALERT(
                     MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
@@ -1517,7 +1525,7 @@
                 return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
             }
 
-            handshake->hello_retry_request_count++;
+            handshake->hello_retry_request_flag = 1;
 
             break;
     }
@@ -1672,7 +1680,7 @@
      * proposed in the HRR, we abort the handshake and send an
      * "illegal_parameter" alert.
      */
-    else if ((!is_hrr) && (handshake->hello_retry_request_count > 0) &&
+    else if ((!is_hrr) && handshake->hello_retry_request_flag &&
              (cipher_suite != ssl->session_negotiate->ciphersuite)) {
         fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
     }
@@ -2270,6 +2278,7 @@
 
 }
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
 /*
  * Handler for MBEDTLS_SSL_END_OF_EARLY_DATA
  *
@@ -2308,6 +2317,32 @@
     return ret;
 }
 
+int mbedtls_ssl_get_early_data_status(mbedtls_ssl_context *ssl)
+{
+    if ((ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT) ||
+        (!mbedtls_ssl_is_handshake_over(ssl))) {
+        return MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
+    }
+
+    switch (ssl->early_data_status) {
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT;
+            break;
+
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED;
+            break;
+
+        case MBEDTLS_SSL_EARLY_DATA_STATUS_SERVER_FINISHED_RECEIVED:
+            return MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED;
+            break;
+
+        default:
+            return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
+    }
+}
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED)
 /*
  * STATE HANDLING: CertificateRequest
@@ -3030,9 +3065,11 @@
             ret = ssl_tls13_process_server_finished(ssl);
             break;
 
+#if defined(MBEDTLS_SSL_EARLY_DATA)
         case MBEDTLS_SSL_END_OF_EARLY_DATA:
             ret = ssl_tls13_write_end_of_early_data(ssl);
             break;
+#endif
 
         case MBEDTLS_SSL_CLIENT_CERTIFICATE:
             ret = ssl_tls13_write_client_certificate(ssl);
@@ -3061,23 +3098,17 @@
              */
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
         case MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_CLIENT_HELLO);
             break;
 
         case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             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 064f616..d448a05 100644
--- a/library/ssl_tls13_generic.c
+++ b/library/ssl_tls13_generic.c
@@ -1379,6 +1379,12 @@
 
     MBEDTLS_SSL_DEBUG_MSG(2, ("=> write change cipher spec"));
 
+    /* Only one CCS to send. */
+    if (ssl->handshake->ccs_sent) {
+        ret = 0;
+        goto cleanup;
+    }
+
     /* Write CCS message */
     MBEDTLS_SSL_PROC_CHK(ssl_tls13_write_change_cipher_spec_body(
                              ssl, ssl->out_msg,
@@ -1390,7 +1396,7 @@
     /* Dispatch message */
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_write_record(ssl, 0));
 
-    ssl->handshake->ccs_count++;
+    ssl->handshake->ccs_sent = 1;
 
 cleanup:
 
@@ -1448,6 +1454,54 @@
 
     return 0;
 }
+
+#if defined(MBEDTLS_SSL_SRV_C)
+int mbedtls_ssl_tls13_check_early_data_len(mbedtls_ssl_context *ssl,
+                                           size_t early_data_len)
+{
+    /*
+     * This function should be called only while an handshake is in progress
+     * and thus a session under negotiation. Add a sanity check to detect a
+     * misuse.
+     */
+    if (ssl->session_negotiate == NULL) {
+        return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
+    }
+
+    /* RFC 8446 section 4.6.1
+     *
+     * A server receiving more than max_early_data_size bytes of 0-RTT data
+     * SHOULD terminate the connection with an "unexpected_message" alert.
+     * Note that if it is still possible to send early_data_len bytes of early
+     * data, it means that early_data_len is smaller than max_early_data_size
+     * (type uint32_t) and can fit in an uint32_t. We use this further
+     * down.
+     */
+    if (early_data_len >
+        (ssl->session_negotiate->max_early_data_size -
+         ssl->total_early_data_size)) {
+
+        MBEDTLS_SSL_DEBUG_MSG(
+            2, ("EarlyData: Too much early data received, %u + %" MBEDTLS_PRINTF_SIZET " > %u",
+                ssl->total_early_data_size, early_data_len,
+                ssl->session_negotiate->max_early_data_size));
+
+        MBEDTLS_SSL_PEND_FATAL_ALERT(
+            MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE,
+            MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE);
+        return MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE;
+    }
+
+    /*
+     * early_data_len has been checked to be less than max_early_data_size
+     * that is uint32_t. Its cast to an uint32_t below is thus safe. We need
+     * the cast to appease some compilers.
+     */
+    ssl->total_early_data_size += (uint32_t) early_data_len;
+
+    return 0;
+}
+#endif /* MBEDTLS_SSL_SRV_C */
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
 /* Reset SSL context and update hash for handling HRR.
diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 1411446..887c5c6 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -39,6 +39,63 @@
     return ciphersuite_info;
 }
 
+static void ssl_tls13_select_ciphersuite(
+    mbedtls_ssl_context *ssl,
+    const unsigned char *cipher_suites,
+    const unsigned char *cipher_suites_end,
+    int psk_ciphersuite_id,
+    psa_algorithm_t psk_hash_alg,
+    const mbedtls_ssl_ciphersuite_t **selected_ciphersuite_info)
+{
+    *selected_ciphersuite_info = NULL;
+
+    /*
+     * In a compliant ClientHello the byte-length of the list of ciphersuites
+     * is even and this function relies on this fact. This should have been
+     * checked in the main ClientHello parsing function. Double check here.
+     */
+    if ((cipher_suites_end - cipher_suites) & 1) {
+        return;
+    }
+
+    for (const unsigned char *p = cipher_suites;
+         p < cipher_suites_end; p += 2) {
+        /*
+         * "cipher_suites_end - p is even" is an invariant of the loop. As
+         * cipher_suites_end - p > 0, we have cipher_suites_end - p >= 2 and it
+         * is thus safe to read two bytes.
+         */
+        uint16_t id = MBEDTLS_GET_UINT16_BE(p, 0);
+
+        const mbedtls_ssl_ciphersuite_t *info =
+            ssl_tls13_validate_peer_ciphersuite(ssl, id);
+        if (info == NULL) {
+            continue;
+        }
+
+        /*
+         * If a valid PSK ciphersuite identifier has been passed in, we want
+         * an exact match.
+         */
+        if (psk_ciphersuite_id != 0) {
+            if (id != psk_ciphersuite_id) {
+                continue;
+            }
+        } else if (psk_hash_alg != PSA_ALG_NONE) {
+            if (mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) info->mac) !=
+                psk_hash_alg) {
+                continue;
+            }
+        }
+
+        *selected_ciphersuite_info = info;
+        return;
+    }
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("No matched ciphersuite, psk_ciphersuite_id=%x, psk_hash_alg=%x",
+                              (unsigned) psk_ciphersuite_id, psk_hash_alg));
+}
+
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
 /* From RFC 8446:
  *
@@ -90,8 +147,30 @@
     return 0;
 }
 
-#define SSL_TLS1_3_OFFERED_PSK_NOT_MATCH   1
-#define SSL_TLS1_3_OFFERED_PSK_MATCH       0
+/*
+ * Non-error return values of
+ * ssl_tls13_offered_psks_check_identity_match_ticket() and
+ * ssl_tls13_offered_psks_check_identity_match(). They are positive to
+ * not collide with error codes that are negative. Zero
+ * (SSL_TLS1_3_PSK_IDENTITY_MATCH) in case of success as it may be propagated
+ * up by the callers of this function as a generic success condition.
+ *
+ * The return value SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE means
+ * that the pre-shared-key identity matches that of a ticket or an externally-
+ * provisioned pre-shared-key. We have thus been able to retrieve the
+ * attributes of the pre-shared-key but at least one of them does not meet
+ * some criteria and the pre-shared-key cannot be used. For example, a ticket
+ * is expired or its version is not TLS 1.3. Note eventually that the return
+ * value SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE does not have
+ * anything to do with binder check. A binder check is done only when a
+ * suitable pre-shared-key has been selected and only for that selected
+ * pre-shared-key: if the binder check fails, we fail the handshake and we do
+ * not try to find another pre-shared-key for which the binder check would
+ * succeed as recommended by the specification.
+ */
+#define SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH 2
+#define SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE 1
+#define SSL_TLS1_3_PSK_IDENTITY_MATCH 0
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
 MBEDTLS_CHECK_RETURN_CRITICAL
@@ -109,7 +188,6 @@
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *ticket_buffer;
-    unsigned int key_exchanges;
 #if defined(MBEDTLS_HAVE_TIME)
     mbedtls_ms_time_t now;
     mbedtls_ms_time_t server_age;
@@ -123,7 +201,7 @@
 
     /* Ticket parser is not configured, Skip */
     if (ssl->conf->f_ticket_parse == NULL || identity_len == 0) {
-        return 0;
+        return SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH;
     }
 
     /* We create a copy of the encrypted ticket since the ticket parsing
@@ -133,63 +211,51 @@
      */
     ticket_buffer = mbedtls_calloc(1, identity_len);
     if (ticket_buffer == NULL) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("buffer too small"));
         return MBEDTLS_ERR_SSL_ALLOC_FAILED;
     }
     memcpy(ticket_buffer, identity, identity_len);
 
-    if ((ret = ssl->conf->f_ticket_parse(ssl->conf->p_ticket,
-                                         session,
-                                         ticket_buffer, identity_len)) != 0) {
-        if (ret == MBEDTLS_ERR_SSL_INVALID_MAC) {
-            MBEDTLS_SSL_DEBUG_MSG(3, ("ticket is not authentic"));
-        } else if (ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) {
+    ret = ssl->conf->f_ticket_parse(ssl->conf->p_ticket,
+                                    session,
+                                    ticket_buffer, identity_len);
+    switch (ret) {
+        case 0:
+            ret = SSL_TLS1_3_PSK_IDENTITY_MATCH;
+            break;
+
+        case MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED:
             MBEDTLS_SSL_DEBUG_MSG(3, ("ticket is expired"));
-        } else {
+            ret = SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE;
+            break;
+
+        case MBEDTLS_ERR_SSL_INVALID_MAC:
+            MBEDTLS_SSL_DEBUG_MSG(3, ("ticket is not authentic"));
+            ret = SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH;
+            break;
+
+        default:
             MBEDTLS_SSL_DEBUG_RET(1, "ticket_parse", ret);
-        }
+            ret = SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH;
     }
 
     /* We delete the temporary buffer */
     mbedtls_free(ticket_buffer);
 
-    if (ret == 0 && session->tls_version != MBEDTLS_SSL_VERSION_TLS1_3) {
-        MBEDTLS_SSL_DEBUG_MSG(3, ("Ticket TLS version is not 1.3."));
-        /* TODO: Define new return value for this case. */
-        ret = MBEDTLS_ERR_SSL_BAD_PROTOCOL_VERSION;
-    }
-
-    if (ret != 0) {
+    if (ret != SSL_TLS1_3_PSK_IDENTITY_MATCH) {
         goto exit;
     }
 
-    /* RFC 8446 section 4.2.9
-     *
-     * Servers SHOULD NOT send NewSessionTicket with tickets that are not
-     * compatible with the advertised modes; however, if a server does so,
-     * the impact will just be that the client's attempts at resumption fail.
-     *
-     * We regard the ticket with incompatible key exchange modes as not match.
+    /*
+     * The identity matches that of a ticket. Now check that it has suitable
+     * attributes and bet it will not be the case.
      */
-    ret = MBEDTLS_ERR_ERROR_GENERIC_ERROR;
-    MBEDTLS_SSL_PRINT_TICKET_FLAGS(4, session->ticket_flags);
+    ret = SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE;
 
-    key_exchanges = 0;
-    if (mbedtls_ssl_tls13_session_ticket_allow_psk_ephemeral(session) &&
-        ssl_tls13_key_exchange_is_psk_ephemeral_available(ssl)) {
-        key_exchanges |= MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
-    }
-    if (mbedtls_ssl_tls13_session_ticket_allow_psk(session) &&
-        ssl_tls13_key_exchange_is_psk_available(ssl)) {
-        key_exchanges |= MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
-    }
-
-    if (key_exchanges == 0) {
-        MBEDTLS_SSL_DEBUG_MSG(3, ("No suitable key exchange mode"));
+    if (session->tls_version != MBEDTLS_SSL_VERSION_TLS1_3) {
+        MBEDTLS_SSL_DEBUG_MSG(3, ("Ticket TLS version is not 1.3."));
         goto exit;
     }
 
-    ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
 #if defined(MBEDTLS_HAVE_TIME)
     now = mbedtls_ms_time();
 
@@ -242,13 +308,15 @@
                 age_diff));
         goto exit;
     }
-
-    ret = 0;
-
 #endif /* MBEDTLS_HAVE_TIME */
 
+    /*
+     * All good, we have found a suitable ticket.
+     */
+    ret = SSL_TLS1_3_PSK_IDENTITY_MATCH;
+
 exit:
-    if (ret != 0) {
+    if (ret != SSL_TLS1_3_PSK_IDENTITY_MATCH) {
         mbedtls_ssl_session_free(session);
     }
 
@@ -273,13 +341,11 @@
     *psk_type = MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL;
 
     MBEDTLS_SSL_DEBUG_BUF(4, "identity", identity, identity_len);
-    ssl->handshake->resume = 0;
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    if (ssl_tls13_offered_psks_check_identity_match_ticket(
-            ssl, identity, identity_len, obfuscated_ticket_age,
-            session) == SSL_TLS1_3_OFFERED_PSK_MATCH) {
-        ssl->handshake->resume = 1;
+    ret = ssl_tls13_offered_psks_check_identity_match_ticket(
+        ssl, identity, identity_len, obfuscated_ticket_age, session);
+    if (ret == SSL_TLS1_3_PSK_IDENTITY_MATCH) {
         *psk_type = MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION;
         ret = mbedtls_ssl_set_hs_psk(ssl,
                                      session->resumption_key,
@@ -294,7 +360,9 @@
                               session->resumption_key_len);
         MBEDTLS_SSL_DEBUG_MSG(4, ("ticket: obfuscated_ticket_age: %u",
                                   (unsigned) obfuscated_ticket_age));
-        return SSL_TLS1_3_OFFERED_PSK_MATCH;
+        return SSL_TLS1_3_PSK_IDENTITY_MATCH;
+    } else if (ret == SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE) {
+        return SSL_TLS1_3_PSK_IDENTITY_MATCH_BUT_PSK_NOT_USABLE;
     }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
@@ -302,9 +370,9 @@
     if (ssl->conf->f_psk != NULL) {
         if (ssl->conf->f_psk(
                 ssl->conf->p_psk, ssl, identity, identity_len) == 0) {
-            return SSL_TLS1_3_OFFERED_PSK_MATCH;
+            return SSL_TLS1_3_PSK_IDENTITY_MATCH;
         }
-        return SSL_TLS1_3_OFFERED_PSK_NOT_MATCH;
+        return SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH;
     }
 
     MBEDTLS_SSL_DEBUG_BUF(5, "identity", identity, identity_len);
@@ -318,12 +386,20 @@
             MBEDTLS_SSL_DEBUG_RET(1, "mbedtls_ssl_set_hs_psk", ret);
             return ret;
         }
-        return SSL_TLS1_3_OFFERED_PSK_MATCH;
+        return SSL_TLS1_3_PSK_IDENTITY_MATCH;
     }
 
-    return SSL_TLS1_3_OFFERED_PSK_NOT_MATCH;
+    return SSL_TLS1_3_PSK_IDENTITY_DOES_NOT_MATCH;
 }
 
+/*
+ * Non-error return values of ssl_tls13_offered_psks_check_binder_match().
+ * They are positive to not collide with error codes that are negative. Zero
+ * (SSL_TLS1_3_BINDER_MATCH) in case of success as it may be propagated up
+ * by the callers of this function as a generic success condition.
+ */
+#define SSL_TLS1_3_BINDER_DOES_NOT_MATCH 1
+#define SSL_TLS1_3_BINDER_MATCH 0
 MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_tls13_offered_psks_check_binder_match(
     mbedtls_ssl_context *ssl,
@@ -368,100 +444,16 @@
     MBEDTLS_SSL_DEBUG_BUF(3, "psk binder ( received ): ", binder, binder_len);
 
     if (mbedtls_ct_memcmp(server_computed_binder, binder, binder_len) == 0) {
-        return SSL_TLS1_3_OFFERED_PSK_MATCH;
+        return SSL_TLS1_3_BINDER_MATCH;
     }
 
     mbedtls_platform_zeroize(server_computed_binder,
                              sizeof(server_computed_binder));
-    return SSL_TLS1_3_OFFERED_PSK_NOT_MATCH;
-}
-
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_select_ciphersuite_for_psk(
-    mbedtls_ssl_context *ssl,
-    const unsigned char *cipher_suites,
-    const unsigned char *cipher_suites_end,
-    uint16_t *selected_ciphersuite,
-    const mbedtls_ssl_ciphersuite_t **selected_ciphersuite_info)
-{
-    psa_algorithm_t psk_hash_alg = PSA_ALG_SHA_256;
-
-    *selected_ciphersuite = 0;
-    *selected_ciphersuite_info = NULL;
-
-    /* RFC 8446, page 55.
-     *
-     * For externally established PSKs, the Hash algorithm MUST be set when the
-     * PSK is established or default to SHA-256 if no such algorithm is defined.
-     *
-     */
-
-    /*
-     * Search for a matching ciphersuite
-     */
-    for (const unsigned char *p = cipher_suites;
-         p < cipher_suites_end; p += 2) {
-        uint16_t cipher_suite;
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-
-        cipher_suite = MBEDTLS_GET_UINT16_BE(p, 0);
-        ciphersuite_info = ssl_tls13_validate_peer_ciphersuite(ssl,
-                                                               cipher_suite);
-        if (ciphersuite_info == NULL) {
-            continue;
-        }
-
-        /* MAC of selected ciphersuite MUST be same with PSK binder if exist.
-         * Otherwise, client should reject.
-         */
-        if (psk_hash_alg ==
-            mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) ciphersuite_info->mac)) {
-            *selected_ciphersuite = cipher_suite;
-            *selected_ciphersuite_info = ciphersuite_info;
-            return 0;
-        }
-    }
-    MBEDTLS_SSL_DEBUG_MSG(2, ("No matched ciphersuite"));
-    return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
+    return SSL_TLS1_3_BINDER_DOES_NOT_MATCH;
 }
 
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_select_ciphersuite_for_resumption(
-    mbedtls_ssl_context *ssl,
-    const unsigned char *cipher_suites,
-    const unsigned char *cipher_suites_end,
-    mbedtls_ssl_session *session,
-    uint16_t *selected_ciphersuite,
-    const mbedtls_ssl_ciphersuite_t **selected_ciphersuite_info)
-{
-
-    *selected_ciphersuite = 0;
-    *selected_ciphersuite_info = NULL;
-    for (const unsigned char *p = cipher_suites; p < cipher_suites_end; p += 2) {
-        uint16_t cipher_suite = MBEDTLS_GET_UINT16_BE(p, 0);
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
-
-        if (cipher_suite != session->ciphersuite) {
-            continue;
-        }
-
-        ciphersuite_info = ssl_tls13_validate_peer_ciphersuite(ssl,
-                                                               cipher_suite);
-        if (ciphersuite_info == NULL) {
-            continue;
-        }
-
-        *selected_ciphersuite = cipher_suite;
-        *selected_ciphersuite_info = ciphersuite_info;
-
-        return 0;
-    }
-
-    return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
-}
-
-MBEDTLS_CHECK_RETURN_CRITICAL
 static int ssl_tls13_session_copy_ticket(mbedtls_ssl_session *dst,
                                          const mbedtls_ssl_session *src)
 {
@@ -481,6 +473,13 @@
 }
 #endif /* MBEDTLS_SSL_SESSION_TICKETS */
 
+struct psk_attributes {
+    int type;
+    int key_exchange_mode;
+    const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
+};
+#define PSK_ATTRIBUTES_INIT { 0, 0, NULL }
+
 /* Parser for pre_shared_key extension in client hello
  *    struct {
  *        opaque identity<1..2^16-1>;
@@ -507,7 +506,8 @@
     const unsigned char *pre_shared_key_ext,
     const unsigned char *pre_shared_key_ext_end,
     const unsigned char *ciphersuites,
-    const unsigned char *ciphersuites_end)
+    const unsigned char *ciphersuites_end,
+    struct psk_attributes *psk)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     const unsigned char *identities = pre_shared_key_ext;
@@ -558,9 +558,10 @@
         uint32_t obfuscated_ticket_age;
         const unsigned char *binder;
         size_t binder_len;
-        int psk_type;
-        uint16_t cipher_suite;
-        const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
+        int psk_ciphersuite_id;
+        psa_algorithm_t psk_hash_alg;
+        int allowed_key_exchange_modes;
+
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
         mbedtls_ssl_session session;
         mbedtls_ssl_session_init(&session);
@@ -586,47 +587,74 @@
 
         ret = ssl_tls13_offered_psks_check_identity_match(
             ssl, identity, identity_len, obfuscated_ticket_age,
-            &psk_type, &session);
-        if (ret != SSL_TLS1_3_OFFERED_PSK_MATCH) {
+            &psk->type, &session);
+        if (ret != SSL_TLS1_3_PSK_IDENTITY_MATCH) {
             continue;
         }
 
         MBEDTLS_SSL_DEBUG_MSG(4, ("found matched identity"));
-        switch (psk_type) {
+
+        switch (psk->type) {
             case MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL:
-                ret = ssl_tls13_select_ciphersuite_for_psk(
-                    ssl, ciphersuites, ciphersuites_end,
-                    &cipher_suite, &ciphersuite_info);
+                psk_ciphersuite_id = 0;
+                psk_hash_alg = PSA_ALG_SHA_256;
+                allowed_key_exchange_modes =
+                    MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL;
                 break;
-            case MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION:
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-                ret = ssl_tls13_select_ciphersuite_for_resumption(
-                    ssl, ciphersuites, ciphersuites_end, &session,
-                    &cipher_suite, &ciphersuite_info);
-                if (ret != 0) {
-                    mbedtls_ssl_session_free(&session);
-                }
-#else
-                ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
-#endif
+            case MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION:
+                psk_ciphersuite_id = session.ciphersuite;
+                psk_hash_alg = PSA_ALG_NONE;
+                ssl->session_negotiate->ticket_flags = session.ticket_flags;
+                allowed_key_exchange_modes =
+                    session.ticket_flags &
+                    MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL;
                 break;
+#endif
             default:
                 return MBEDTLS_ERR_SSL_INTERNAL_ERROR;
         }
-        if (ret != 0) {
-            /* See below, no cipher_suite available, abort handshake */
+
+        psk->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE;
+
+        if ((allowed_key_exchange_modes &
+             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL) &&
+            ssl_tls13_key_exchange_is_psk_ephemeral_available(ssl)) {
+            psk->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
+        } else if ((allowed_key_exchange_modes &
+                    MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK) &&
+                   ssl_tls13_key_exchange_is_psk_available(ssl)) {
+            psk->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
+        }
+
+        if (psk->key_exchange_mode == MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("No suitable PSK key exchange mode"));
+            continue;
+        }
+
+        ssl_tls13_select_ciphersuite(ssl, ciphersuites, ciphersuites_end,
+                                     psk_ciphersuite_id, psk_hash_alg,
+                                     &psk->ciphersuite_info);
+
+        if (psk->ciphersuite_info == NULL) {
+#if defined(MBEDTLS_SSL_SESSION_TICKETS)
+            mbedtls_ssl_session_free(&session);
+#endif
+            /*
+             * We consider finding a ciphersuite suitable for the PSK as part
+             * of the validation of its binder. Thus if we do not find one, we
+             * abort the handshake with a decrypt_error alert.
+             */
             MBEDTLS_SSL_PEND_FATAL_ALERT(
                 MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR,
                 MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
-            MBEDTLS_SSL_DEBUG_RET(
-                2, "ssl_tls13_select_ciphersuite", ret);
-            return ret;
+            return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
         }
 
         ret = ssl_tls13_offered_psks_check_binder_match(
-            ssl, binder, binder_len, psk_type,
-            mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) ciphersuite_info->mac));
-        if (ret != SSL_TLS1_3_OFFERED_PSK_MATCH) {
+            ssl, binder, binder_len, psk->type,
+            mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) psk->ciphersuite_info->mac));
+        if (ret != SSL_TLS1_3_BINDER_MATCH) {
             /* For security reasons, the handshake should be aborted when we
              * fail to validate a binder value. See RFC 8446 section 4.2.11.2
              * and appendix E.6. */
@@ -644,13 +672,8 @@
 
         matched_identity = identity_id;
 
-        /* Update handshake parameters */
-        ssl->handshake->ciphersuite_info = ciphersuite_info;
-        ssl->session_negotiate->ciphersuite = cipher_suite;
-        MBEDTLS_SSL_DEBUG_MSG(2, ("overwrite ciphersuite: %04x - %s",
-                                  cipher_suite, ciphersuite_info->name));
 #if defined(MBEDTLS_SSL_SESSION_TICKETS)
-        if (psk_type == MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION) {
+        if (psk->type == MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION) {
             ret = ssl_tls13_session_copy_ticket(ssl->session_negotiate,
                                                 &session);
             mbedtls_ssl_session_free(&session);
@@ -676,7 +699,7 @@
         return ret;
     }
     if (matched_identity == -1) {
-        MBEDTLS_SSL_DEBUG_MSG(3, ("No matched PSK or ticket."));
+        MBEDTLS_SSL_DEBUG_MSG(3, ("No usable PSK or ticket."));
         return MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
     }
 
@@ -1003,21 +1026,29 @@
 
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
 MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_ticket_is_kex_mode_permitted(mbedtls_ssl_context *ssl,
-                                                  unsigned int kex_mode)
+static int ssl_tls13_key_exchange_is_psk_available(mbedtls_ssl_context *ssl)
 {
-#if defined(MBEDTLS_SSL_SESSION_TICKETS)
-    if (ssl->handshake->resume) {
-        if (!mbedtls_ssl_tls13_session_ticket_has_flags(
-                ssl->session_negotiate, kex_mode)) {
-            return 0;
-        }
-    }
+#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED)
+    return mbedtls_ssl_conf_tls13_is_psk_enabled(ssl) &&
+           mbedtls_ssl_tls13_is_psk_supported(ssl) &&
+           ssl_tls13_client_hello_has_exts_for_psk_key_exchange(ssl);
 #else
     ((void) ssl);
-    ((void) kex_mode);
+    return 0;
 #endif
-    return 1;
+}
+
+MBEDTLS_CHECK_RETURN_CRITICAL
+static int ssl_tls13_key_exchange_is_psk_ephemeral_available(mbedtls_ssl_context *ssl)
+{
+#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED)
+    return mbedtls_ssl_conf_tls13_is_psk_ephemeral_enabled(ssl) &&
+           mbedtls_ssl_tls13_is_psk_ephemeral_supported(ssl) &&
+           ssl_tls13_client_hello_has_exts_for_psk_ephemeral_key_exchange(ssl);
+#else
+    ((void) ssl);
+    return 0;
+#endif
 }
 #endif /* MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED */
 
@@ -1033,83 +1064,6 @@
 #endif
 }
 
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_key_exchange_is_psk_available(mbedtls_ssl_context *ssl)
-{
-#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED)
-    return ssl_tls13_ticket_is_kex_mode_permitted(
-        ssl, MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK) &&
-           mbedtls_ssl_conf_tls13_is_psk_enabled(ssl) &&
-           mbedtls_ssl_tls13_is_psk_supported(ssl) &&
-           ssl_tls13_client_hello_has_exts_for_psk_key_exchange(ssl);
-#else
-    ((void) ssl);
-    return 0;
-#endif
-}
-
-MBEDTLS_CHECK_RETURN_CRITICAL
-static int ssl_tls13_key_exchange_is_psk_ephemeral_available(mbedtls_ssl_context *ssl)
-{
-#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED)
-    return ssl_tls13_ticket_is_kex_mode_permitted(
-        ssl, MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL) &&
-           mbedtls_ssl_conf_tls13_is_psk_ephemeral_enabled(ssl) &&
-           mbedtls_ssl_tls13_is_psk_ephemeral_supported(ssl) &&
-           ssl_tls13_client_hello_has_exts_for_psk_ephemeral_key_exchange(ssl);
-#else
-    ((void) ssl);
-    return 0;
-#endif
-}
-
-static int ssl_tls13_determine_key_exchange_mode(mbedtls_ssl_context *ssl)
-{
-    /*
-     * Determine the key exchange algorithm to use.
-     * There are three types of key exchanges supported in TLS 1.3:
-     * - (EC)DH with ECDSA,
-     * - (EC)DH with PSK,
-     * - plain PSK.
-     *
-     * The PSK-based key exchanges may additionally be used with 0-RTT.
-     *
-     * Our built-in order of preference is
-     *  1 ) (EC)DHE-PSK Mode ( psk_ephemeral )
-     *  2 ) Certificate Mode ( ephemeral )
-     *  3 ) Plain PSK Mode ( psk )
-     */
-
-    ssl->handshake->key_exchange_mode =
-        MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_NONE;
-
-    if (ssl_tls13_key_exchange_is_psk_ephemeral_available(ssl)) {
-        ssl->handshake->key_exchange_mode =
-            MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
-        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: psk_ephemeral"));
-    } else
-    if (ssl_tls13_key_exchange_is_ephemeral_available(ssl)) {
-        ssl->handshake->key_exchange_mode =
-            MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL;
-        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: ephemeral"));
-    } else
-    if (ssl_tls13_key_exchange_is_psk_available(ssl)) {
-        ssl->handshake->key_exchange_mode =
-            MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
-        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: psk"));
-    } else {
-        MBEDTLS_SSL_DEBUG_MSG(
-            1,
-            ("ClientHello message misses mandatory extensions."));
-        MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_MISSING_EXTENSION,
-                                     MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER);
-        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
-    }
-
-    return 0;
-
-}
-
 #if defined(MBEDTLS_X509_CRT_PARSE_C) && \
     defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED)
 
@@ -1301,6 +1255,8 @@
     int no_usable_share_for_key_agreement = 0;
 
 #if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
+    int got_psk = 0;
+    struct psk_attributes psk = PSK_ATTRIBUTES_INIT;
     const unsigned char *pre_shared_key_ext = NULL;
     const unsigned char *pre_shared_key_ext_end = NULL;
 #endif
@@ -1464,37 +1420,20 @@
      */
     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;
 
-        /*
-         * "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) {
-            continue;
-        }
-
-        ssl->session_negotiate->ciphersuite = cipher_suite;
-        handshake->ciphersuite_info = ciphersuite_info;
-        MBEDTLS_SSL_DEBUG_MSG(2, ("selected ciphersuite: %04x - %s",
-                                  cipher_suite,
-                                  ciphersuite_info->name));
-        break;
-    }
+    ssl_tls13_select_ciphersuite(ssl, cipher_suites, cipher_suites_end,
+                                 0, PSA_ALG_NONE, &handshake->ciphersuite_info);
 
     if (handshake->ciphersuite_info == NULL) {
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE,
                                      MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
         return MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE;
     }
+    ssl->session_negotiate->ciphersuite = handshake->ciphersuite_info->id;
+
+    MBEDTLS_SSL_DEBUG_MSG(2, ("selected ciphersuite: %04x - %s",
+                              ((unsigned) handshake->ciphersuite_info->id),
+                              handshake->ciphersuite_info->name));
 
     /* ...
      * opaque legacy_compression_methods<1..2^8-1>;
@@ -1531,7 +1470,7 @@
         const unsigned char *extension_data_end;
         uint32_t allowed_exts = MBEDTLS_SSL_TLS1_3_ALLOWED_EXTS_OF_CH;
 
-        if (ssl->handshake->hello_retry_request_count > 0) {
+        if (ssl->handshake->hello_retry_request_flag) {
             /* Do not accept early data extension in 2nd ClientHello */
             allowed_exts &= ~MBEDTLS_SSL_EXT_MASK(EARLY_DATA);
         }
@@ -1734,10 +1673,11 @@
     /* Update checksum with either
      * - The entire content of the CH message, if no PSK extension is present
      * - The content up to but excluding the PSK extension, if present.
+     * Always parse the pre-shared-key extension when present in the
+     * ClientHello even if some pre-requisites for PSK key exchange modes are
+     * not met. That way we always validate the syntax of the extension.
      */
-    /* If we've settled on a PSK-based exchange, parse PSK identity ext */
-    if (ssl_tls13_key_exchange_is_psk_available(ssl) ||
-        ssl_tls13_key_exchange_is_psk_ephemeral_available(ssl)) {
+    if (handshake->received_extensions & MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY)) {
         ret = handshake->update_checksum(ssl, buf,
                                          pre_shared_key_ext - buf);
         if (0 != ret) {
@@ -1748,10 +1688,11 @@
                                                  pre_shared_key_ext,
                                                  pre_shared_key_ext_end,
                                                  cipher_suites,
-                                                 cipher_suites_end);
-        if (ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) {
-            handshake->received_extensions &= ~MBEDTLS_SSL_EXT_MASK(PRE_SHARED_KEY);
-        } else if (ret != 0) {
+                                                 cipher_suites_end,
+                                                 &psk);
+        if (ret == 0) {
+            got_psk = 1;
+        } else if (ret != MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) {
             MBEDTLS_SSL_DEBUG_RET(
                 1, "ssl_tls13_parse_pre_shared_key_ext", ret);
             return ret;
@@ -1766,12 +1707,68 @@
         }
     }
 
-    ret = ssl_tls13_determine_key_exchange_mode(ssl);
-    if (ret < 0) {
-        return ret;
+    /*
+     * Determine the key exchange algorithm to use.
+     * There are three types of key exchanges supported in TLS 1.3:
+     * - (EC)DH with ECDSA,
+     * - (EC)DH with PSK,
+     * - plain PSK.
+     *
+     * The PSK-based key exchanges may additionally be used with 0-RTT.
+     *
+     * Our built-in order of preference is
+     *  1 ) (EC)DHE-PSK Mode ( psk_ephemeral )
+     *  2 ) Certificate Mode ( ephemeral )
+     *  3 ) Plain PSK Mode ( psk )
+     */
+#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
+    if (got_psk && (psk.key_exchange_mode ==
+                    MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL)) {
+        handshake->key_exchange_mode =
+            MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL;
+        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: psk_ephemeral"));
+
+    } else
+#endif
+    if (ssl_tls13_key_exchange_is_ephemeral_available(ssl)) {
+        handshake->key_exchange_mode =
+            MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL;
+        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: ephemeral"));
+
+    }
+#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
+    else if (got_psk && (psk.key_exchange_mode ==
+                         MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK)) {
+        handshake->key_exchange_mode = MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK;
+        MBEDTLS_SSL_DEBUG_MSG(2, ("key exchange mode: psk"));
+    }
+#endif
+    else {
+        MBEDTLS_SSL_DEBUG_MSG(
+            1,
+            ("ClientHello message misses mandatory extensions."));
+        MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_MISSING_EXTENSION,
+                                     MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER);
+        return MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
     }
 
-    if (ssl->handshake->key_exchange_mode !=
+#if defined(MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_SOME_PSK_ENABLED)
+    if (handshake->key_exchange_mode &
+        MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ALL) {
+        handshake->ciphersuite_info = psk.ciphersuite_info;
+        ssl->session_negotiate->ciphersuite = psk.ciphersuite_info->id;
+
+        MBEDTLS_SSL_DEBUG_MSG(2, ("Select PSK ciphersuite: %04x - %s",
+                                  ((unsigned) psk.ciphersuite_info->id),
+                                  psk.ciphersuite_info->name));
+
+        if (psk.type == MBEDTLS_SSL_TLS1_3_PSK_RESUMPTION) {
+            handshake->resume = 1;
+        }
+    }
+#endif
+
+    if (handshake->key_exchange_mode !=
         MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK) {
         hrr_required = (no_usable_share_for_key_agreement != 0);
     }
@@ -1973,10 +1970,6 @@
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
     unsigned char *server_randbytes =
         ssl->handshake->randbytes + MBEDTLS_CLIENT_HELLO_RANDOM_LEN;
-    if (ssl->conf->f_rng == NULL) {
-        MBEDTLS_SSL_DEBUG_MSG(1, ("no RNG provided"));
-        return MBEDTLS_ERR_SSL_NO_RNG;
-    }
 
     if ((ret = ssl->conf->f_rng(ssl->conf->p_rng, server_randbytes,
                                 MBEDTLS_SERVER_HELLO_RANDOM_LEN)) != 0) {
@@ -2427,7 +2420,7 @@
 static int ssl_tls13_prepare_hello_retry_request(mbedtls_ssl_context *ssl)
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    if (ssl->handshake->hello_retry_request_count > 0) {
+    if (ssl->handshake->hello_retry_request_flag) {
         MBEDTLS_SSL_DEBUG_MSG(1, ("Too many HRRs"));
         MBEDTLS_SSL_PEND_FATAL_ALERT(MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE,
                                      MBEDTLS_ERR_SSL_HANDSHAKE_FAILURE);
@@ -2474,7 +2467,7 @@
     MBEDTLS_SSL_PROC_CHK(mbedtls_ssl_finish_handshake_msg(ssl, buf_len,
                                                           msg_len));
 
-    ssl->handshake->hello_retry_request_count++;
+    ssl->handshake->hello_retry_request_flag = 1;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
     /* The server sends a dummy change_cipher_spec record immediately
@@ -2913,17 +2906,14 @@
     }
 
     if (ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA) {
-        MBEDTLS_SSL_DEBUG_MSG(3, ("Received early data"));
-        /* RFC 8446 section 4.6.1
-         *
-         * A server receiving more than max_early_data_size bytes of 0-RTT data
-         * SHOULD terminate the connection with an "unexpected_message" alert.
-         *
-         * TODO: Add received data size check here.
-         */
         if (ssl->in_offt == NULL) {
+            MBEDTLS_SSL_DEBUG_MSG(3, ("Received early data"));
             /* Set the reading pointer */
             ssl->in_offt = ssl->in_msg;
+            ret = mbedtls_ssl_tls13_check_early_data_len(ssl, ssl->in_msglen);
+            if (ret != 0) {
+                return ret;
+            }
         }
         return SSL_GOT_EARLY_DATA;
     }
@@ -3141,6 +3131,7 @@
         ssl->conf->max_early_data_size > 0) {
         mbedtls_ssl_tls13_session_set_ticket_flags(
             session, MBEDTLS_SSL_TLS1_3_TICKET_ALLOW_EARLY_DATA);
+        session->max_early_data_size = ssl->conf->max_early_data_size;
     }
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
@@ -3477,12 +3468,9 @@
             break;
 
         case MBEDTLS_SSL_SERVER_CCS_AFTER_SERVER_HELLO:
-            ret = 0;
-            if (ssl->handshake->ccs_count == 0) {
-                ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
-                if (ret != 0) {
-                    break;
-                }
+            ret = mbedtls_ssl_tls13_write_change_cipher_spec(ssl);
+            if (ret != 0) {
+                break;
             }
             mbedtls_ssl_handshake_set_state(ssl, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
             break;
diff --git a/library/x509_crt.c b/library/x509_crt.c
index 7f0160a..2fd56fb 100644
--- a/library/x509_crt.c
+++ b/library/x509_crt.c
@@ -3290,4 +3290,12 @@
 }
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
 
+int mbedtls_x509_crt_get_ca_istrue(const mbedtls_x509_crt *crt)
+{
+    if ((crt->ext_types & MBEDTLS_X509_EXT_BASIC_CONSTRAINTS) != 0) {
+        return crt->MBEDTLS_PRIVATE(ca_istrue);
+    }
+    return MBEDTLS_ERR_X509_INVALID_EXTENSIONS;
+}
+
 #endif /* MBEDTLS_X509_CRT_PARSE_C */
diff --git a/library/x509_internal.h b/library/x509_internal.h
index 15e097a..8a2d2ed 100644
--- a/library/x509_internal.h
+++ b/library/x509_internal.h
@@ -21,133 +21,6 @@
 #include "mbedtls/rsa.h"
 #endif
 
-/**
- * \brief          Return the next relative DN in an X509 name.
- *
- * \note           Intended use is to compare function result to dn->next
- *                 in order to detect boundaries of multi-valued RDNs.
- *
- * \param dn       Current node in the X509 name
- *
- * \return         Pointer to the first attribute-value pair of the
- *                 next RDN in sequence, or NULL if end is reached.
- */
-static inline mbedtls_x509_name *mbedtls_x509_dn_get_next(
-    mbedtls_x509_name *dn)
-{
-    while (dn->MBEDTLS_PRIVATE(next_merged) && dn->next != NULL) {
-        dn = dn->next;
-    }
-    return dn->next;
-}
-
-/**
- * \brief          Store the certificate serial in printable form into buf;
- *                 no more than size characters will be written.
- *
- * \param buf      Buffer to write to
- * \param size     Maximum size of buffer
- * \param serial   The X509 serial to represent
- *
- * \return         The length of the string written (not including the
- *                 terminated nul byte), or a negative error code.
- */
-int mbedtls_x509_serial_gets(char *buf, size_t size, const mbedtls_x509_buf *serial);
-
-/**
- * \brief          Compare pair of mbedtls_x509_time.
- *
- * \param t1       mbedtls_x509_time to compare
- * \param t2       mbedtls_x509_time to compare
- *
- * \return         < 0 if t1 is before t2
- *                   0 if t1 equals t2
- *                 > 0 if t1 is after t2
- */
-int mbedtls_x509_time_cmp(const mbedtls_x509_time *t1, const mbedtls_x509_time *t2);
-
-#if defined(MBEDTLS_HAVE_TIME_DATE)
-/**
- * \brief          Fill mbedtls_x509_time with provided mbedtls_time_t.
- *
- * \param tt       mbedtls_time_t to convert
- * \param now      mbedtls_x509_time to fill with converted mbedtls_time_t
- *
- * \return         \c 0 on success
- * \return         A non-zero return value on failure.
- */
-int mbedtls_x509_time_gmtime(mbedtls_time_t tt, mbedtls_x509_time *now);
-#endif /* MBEDTLS_HAVE_TIME_DATE */
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the past.
- *
- * \note           Intended usage is "if( is_past( valid_to ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param to       mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the past or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_past(const mbedtls_x509_time *to);
-
-/**
- * \brief          Check a given mbedtls_x509_time against the system time
- *                 and tell if it's in the future.
- *
- * \note           Intended usage is "if( is_future( valid_from ) ) ERROR".
- *                 Hence the return value of 1 if on internal errors.
- *
- * \param from     mbedtls_x509_time to check
- *
- * \return         1 if the given time is in the future or an error occurred,
- *                 0 otherwise.
- */
-int mbedtls_x509_time_is_future(const mbedtls_x509_time *from);
-
-/**
- * \brief          This function parses an item in the SubjectAlternativeNames
- *                 extension. Please note that this function might allocate
- *                 additional memory for a subject alternative name, thus
- *                 mbedtls_x509_free_subject_alt_name has to be called
- *                 to dispose of this additional memory afterwards.
- *
- * \param san_buf  The buffer holding the raw data item of the subject
- *                 alternative name.
- * \param san      The target structure to populate with the parsed presentation
- *                 of the subject alternative name encoded in \p san_buf.
- *
- * \note           Supported GeneralName types, as defined in RFC 5280:
- *                 "rfc822Name", "dnsName", "directoryName",
- *                 "uniformResourceIdentifier" and "hardware_module_name"
- *                 of type "otherName", as defined in RFC 4108.
- *
- * \note           This function should be called on a single raw data of
- *                 subject alternative name. For example, after successful
- *                 certificate parsing, one must iterate on every item in the
- *                 \c crt->subject_alt_names sequence, and pass it to
- *                 this function.
- *
- * \warning        The target structure contains pointers to the raw data of the
- *                 parsed certificate, and its lifetime is restricted by the
- *                 lifetime of the certificate.
- *
- * \return         \c 0 on success
- * \return         #MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE for an unsupported
- *                 SAN type.
- * \return         Another negative value for any other failure.
- */
-int mbedtls_x509_parse_subject_alt_name(const mbedtls_x509_buf *san_buf,
-                                        mbedtls_x509_subject_alternative_name *san);
-/**
- * \brief          Unallocate all data related to subject alternative name
- *
- * \param san      SAN structure - extra memory owned by this structure will be freed
- */
-void mbedtls_x509_free_subject_alt_name(mbedtls_x509_subject_alternative_name *san);
-
 int mbedtls_x509_get_name(unsigned char **p, const unsigned char *end,
                           mbedtls_x509_name *cur);
 int mbedtls_x509_get_alg_null(unsigned char **p, const unsigned char *end,
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 05bb2ff..332befd 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -52,7 +52,7 @@
 #define DFL_KEY_OPAQUE          0
 #define DFL_KEY_PWD             ""
 #define DFL_PSK                 ""
-#define DFL_EARLY_DATA          ""
+#define DFL_EARLY_DATA          -1
 #define DFL_PSK_OPAQUE          0
 #define DFL_PSK_IDENTITY        "Client_identity"
 #define DFL_ECJPAKE_PW          NULL
@@ -347,9 +347,8 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
 #define USAGE_EARLY_DATA \
-    "    early_data=%%s      The file path to read early data from\n" \
-    "                        default: \"\" (do nothing)\n"            \
-    "                        option: a file path\n"
+    "    early_data=%%d      default: library default\n" \
+    "                        options: 0 (disabled), 1 (enabled)\n"
 #else
 #define USAGE_EARLY_DATA ""
 #endif /* MBEDTLS_SSL_EARLY_DATA && MBEDTLS_SSL_PROTO_TLS1_3 */
@@ -544,7 +543,7 @@
     int reproducible;           /* make communication reproducible          */
     int skip_close_notify;      /* skip sending the close_notify alert      */
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    const char *early_data;     /* the path of the file to read early data from */
+    int early_data;             /* early data enablement flag               */
 #endif
     int query_config_mode;      /* whether to read config                   */
     int use_srtp;               /* Support SRTP                             */
@@ -717,9 +716,64 @@
     return ret;
 }
 
+/*
+ * Build HTTP request
+ */
+static int build_http_request(unsigned char *buf, size_t buf_size, size_t *request_len)
+{
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+    size_t len, tail_len, request_size;
+
+    ret = mbedtls_snprintf((char *) buf, buf_size, GET_REQUEST, opt.request_page);
+    if (ret < 0) {
+        return ret;
+    }
+
+    len = (size_t) ret;
+    tail_len = strlen(GET_REQUEST_END);
+    if (opt.request_size != DFL_REQUEST_SIZE) {
+        request_size = (size_t) opt.request_size;
+    } else {
+        request_size = len + tail_len;
+    }
+
+    if (request_size > buf_size) {
+        return MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
+    }
+
+    /* Add padding to GET request to reach opt.request_size in length */
+    if (opt.request_size != DFL_REQUEST_SIZE &&
+        len + tail_len < request_size) {
+        memset(buf + len, 'A', request_size - len - tail_len);
+        len = request_size - tail_len;
+    }
+
+    strncpy((char *) buf + len, GET_REQUEST_END, buf_size - len);
+    len += tail_len;
+
+    /* Truncate if request size is smaller than the "natural" size */
+    if (opt.request_size != DFL_REQUEST_SIZE &&
+        len > request_size) {
+        len = request_size;
+
+        /* Still end with \r\n unless that's really not possible */
+        if (len >= 2) {
+            buf[len - 2] = '\r';
+        }
+        if (len >= 1) {
+            buf[len - 1] = '\n';
+        }
+    }
+
+    *request_len = len;
+
+    return 0;
+}
+
 int main(int argc, char *argv[])
 {
-    int ret = 0, len, tail_len, i, written, frags, retry_left;
+    int ret = 0, i;
+    size_t len, written, frags, retry_left;
     int query_config_ret = 0;
     mbedtls_net_context server_fd;
     io_ctx_t io_ctx;
@@ -742,10 +796,6 @@
     size_t cid_renego_len = 0;
 #endif
 
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    FILE *early_data_fp = NULL;
-#endif /* MBEDTLS_SSL_EARLY_DATA */
-
 #if defined(MBEDTLS_SSL_ALPN)
     const char *alpn_list[ALPN_LIST_SIZE];
 #endif
@@ -1201,7 +1251,15 @@
 #if defined(MBEDTLS_SSL_PROTO_TLS1_3)
 #if defined(MBEDTLS_SSL_EARLY_DATA)
         else if (strcmp(p, "early_data") == 0) {
-            opt.early_data = q;
+            switch (atoi(q)) {
+                case 0:
+                    opt.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+                    break;
+                case 1:
+                    opt.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+                    break;
+                default: goto usage;
+            }
         }
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
@@ -1711,11 +1769,10 @@
                                      &psa_alg, &psa_alg2,
                                      &usage,
                                      mbedtls_pk_get_type(&pkey)) == 0) {
-            ret = mbedtls_pk_wrap_as_opaque(&pkey, &key_slot, psa_alg,
-                                            usage, psa_alg2);
+            ret = pk_wrap_as_opaque(&pkey, psa_alg, psa_alg2, usage, &key_slot);
             if (ret != 0) {
                 mbedtls_printf(" failed\n  !  "
-                               "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n",
+                               "mbedtls_pk_get_psa_attributes returned -0x%x\n\n",
                                (unsigned int)  -ret);
                 goto exit;
             }
@@ -1968,16 +2025,9 @@
     }
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
-    int early_data_enabled = MBEDTLS_SSL_EARLY_DATA_DISABLED;
-    if (strlen(opt.early_data) > 0) {
-        if ((early_data_fp = fopen(opt.early_data, "rb")) == NULL) {
-            mbedtls_printf("failed\n  ! Cannot open '%s' for reading.\n",
-                           opt.early_data);
-            goto exit;
-        }
-        early_data_enabled = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    if (opt.early_data != DFL_EARLY_DATA) {
+        mbedtls_ssl_conf_early_data(&conf, opt.early_data);
     }
-    mbedtls_ssl_conf_early_data(&conf, early_data_enabled);
 #endif /* MBEDTLS_SSL_EARLY_DATA */
 
     if ((ret = mbedtls_ssl_setup(&ssl, &conf)) != 0) {
@@ -2448,32 +2498,9 @@
     mbedtls_printf("  > Write to server:");
     fflush(stdout);
 
-    len = mbedtls_snprintf((char *) buf, sizeof(buf) - 1, GET_REQUEST,
-                           opt.request_page);
-    tail_len = (int) strlen(GET_REQUEST_END);
-
-    /* Add padding to GET request to reach opt.request_size in length */
-    if (opt.request_size != DFL_REQUEST_SIZE &&
-        len + tail_len < opt.request_size) {
-        memset(buf + len, 'A', opt.request_size - len - tail_len);
-        len += opt.request_size - len - tail_len;
-    }
-
-    strncpy((char *) buf + len, GET_REQUEST_END, sizeof(buf) - len - 1);
-    len += tail_len;
-
-    /* Truncate if request size is smaller than the "natural" size */
-    if (opt.request_size != DFL_REQUEST_SIZE &&
-        len > opt.request_size) {
-        len = opt.request_size;
-
-        /* Still end with \r\n unless that's really not possible */
-        if (len >= 2) {
-            buf[len - 2] = '\r';
-        }
-        if (len >= 1) {
-            buf[len - 1] = '\n';
-        }
+    ret = build_http_request(buf, sizeof(buf) - 1, &len);
+    if (ret != 0) {
+        goto exit;
     }
 
     if (opt.transport == MBEDTLS_SSL_TRANSPORT_STREAM) {
@@ -2545,8 +2572,11 @@
     }
 
     buf[written] = '\0';
-    mbedtls_printf(" %d bytes written in %d fragments\n\n%s\n",
-                   written, frags, (char *) buf);
+    mbedtls_printf(
+        " %" MBEDTLS_PRINTF_SIZET " bytes written in %" MBEDTLS_PRINTF_SIZET " fragments\n\n%s\n",
+        written,
+        frags,
+        (char *) buf);
 
     /* Send a non-empty request if request_size == 0 */
     if (len == 0) {
@@ -2653,7 +2683,9 @@
 
             len = ret;
             buf[len] = '\0';
-            mbedtls_printf("  < Read from server: %d bytes read\n\n%s", len, (char *) buf);
+            mbedtls_printf("  < Read from server: %" MBEDTLS_PRINTF_SIZET " bytes read\n\n%s",
+                           len,
+                           (char *) buf);
             fflush(stdout);
             /* End of message should be detected according to the syntax of the
              * application protocol (eg HTTP), just use a dummy test here. */
@@ -2712,7 +2744,9 @@
 
         len = ret;
         buf[len] = '\0';
-        mbedtls_printf("  < Read from server: %d bytes read\n\n%s", len, (char *) buf);
+        mbedtls_printf("  < Read from server: %" MBEDTLS_PRINTF_SIZET " bytes read\n\n%s",
+                       len,
+                       (char *) buf);
         ret = 0;
     }
 
@@ -3002,6 +3036,54 @@
             goto exit;
         }
 
+        ret = build_http_request(buf, sizeof(buf) - 1, &len);
+        if (ret != 0) {
+            goto exit;
+        }
+
+#if defined(MBEDTLS_SSL_EARLY_DATA)
+        if (ssl.conf->early_data_enabled == MBEDTLS_SSL_EARLY_DATA_ENABLED) {
+            frags = 0;
+            written = 0;
+            do {
+                while ((ret = mbedtls_ssl_write_early_data(&ssl, buf + written,
+                                                           len - written)) < 0) {
+                    if (ret == MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA) {
+                        goto end_of_early_data;
+                    }
+                    if (ret != MBEDTLS_ERR_SSL_WANT_READ &&
+                        ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
+                        ret != MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) {
+                        mbedtls_printf(" failed\n  ! mbedtls_ssl_write returned -0x%x\n\n",
+                                       (unsigned int) -ret);
+                        goto exit;
+                    }
+
+                    /* For event-driven IO, wait for socket to become available */
+                    if (opt.event == 1 /* level triggered IO */) {
+#if defined(MBEDTLS_TIMING_C)
+                        idle(&server_fd, &timer, ret);
+#else
+                        idle(&server_fd, ret);
+#endif
+                    }
+                }
+
+                frags++;
+                written += ret;
+            } while (written < len);
+        }
+
+end_of_early_data:
+
+        buf[written] = '\0';
+        mbedtls_printf(
+            " %" MBEDTLS_PRINTF_SIZET " bytes of early data written in %" MBEDTLS_PRINTF_SIZET " fragments\n\n%s\n",
+            written,
+            frags,
+            (char *) buf);
+#endif /* MBEDTLS_SSL_EARLY_DATA */
+
         while ((ret = mbedtls_ssl_handshake(&ssl)) != 0) {
             if (ret != MBEDTLS_ERR_SSL_WANT_READ &&
                 ret != MBEDTLS_ERR_SSL_WANT_WRITE &&
@@ -3035,12 +3117,6 @@
     mbedtls_ssl_config_free(&conf);
     mbedtls_ssl_session_free(&saved_session);
 
-#if defined(MBEDTLS_SSL_EARLY_DATA)
-    if (early_data_fp != NULL) {
-        fclose(early_data_fp);
-    }
-#endif
-
     if (session_data != NULL) {
         mbedtls_platform_zeroize(session_data, session_data_len);
     }
diff --git a/programs/ssl/ssl_server2.c b/programs/ssl/ssl_server2.c
index abf33de..f00a111 100644
--- a/programs/ssl/ssl_server2.c
+++ b/programs/ssl/ssl_server2.c
@@ -2708,12 +2708,10 @@
                                      &psa_alg, &psa_alg2,
                                      &psa_usage,
                                      mbedtls_pk_get_type(&pkey)) == 0) {
-            ret = mbedtls_pk_wrap_as_opaque(&pkey, &key_slot,
-                                            psa_alg, psa_usage, psa_alg2);
-
+            ret = pk_wrap_as_opaque(&pkey, psa_alg, psa_alg2, psa_usage, &key_slot);
             if (ret != 0) {
                 mbedtls_printf(" failed\n  !  "
-                               "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n",
+                               "pk_wrap_as_opaque returned -0x%x\n\n",
                                (unsigned int)  -ret);
                 goto exit;
             }
@@ -2727,12 +2725,10 @@
                                      &psa_alg, &psa_alg2,
                                      &psa_usage,
                                      mbedtls_pk_get_type(&pkey2)) == 0) {
-            ret = mbedtls_pk_wrap_as_opaque(&pkey2, &key_slot2,
-                                            psa_alg, psa_usage, psa_alg2);
-
+            ret = pk_wrap_as_opaque(&pkey2, psa_alg, psa_alg2, psa_usage, &key_slot2);
             if (ret != 0) {
                 mbedtls_printf(" failed\n  !  "
-                               "mbedtls_pk_wrap_as_opaque returned -0x%x\n\n",
+                               "mbedtls_pk_get_psa_attributes returned -0x%x\n\n",
                                (unsigned int)  -ret);
                 goto exit;
             }
diff --git a/programs/ssl/ssl_test_lib.c b/programs/ssl/ssl_test_lib.c
index d3ac526..17d36b7 100644
--- a/programs/ssl/ssl_test_lib.c
+++ b/programs/ssl/ssl_test_lib.c
@@ -274,6 +274,37 @@
 
     return 0;
 }
+
+#if defined(MBEDTLS_PK_C)
+int pk_wrap_as_opaque(mbedtls_pk_context *pk, psa_algorithm_t psa_alg, psa_algorithm_t psa_alg2,
+                      psa_key_usage_t psa_usage, mbedtls_svc_key_id_t *key_id)
+{
+    int ret;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+
+    ret = mbedtls_pk_get_psa_attributes(pk, PSA_KEY_USAGE_SIGN_HASH, &key_attr);
+    if (ret != 0) {
+        return ret;
+    }
+    psa_set_key_usage_flags(&key_attr, psa_usage);
+    psa_set_key_algorithm(&key_attr, psa_alg);
+    if (psa_alg2 != PSA_ALG_NONE) {
+        psa_set_key_enrollment_algorithm(&key_attr, psa_alg2);
+    }
+    ret = mbedtls_pk_import_into_psa(pk, &key_attr, key_id);
+    if (ret != 0) {
+        return ret;
+    }
+    mbedtls_pk_free(pk);
+    mbedtls_pk_init(pk);
+    ret = mbedtls_pk_setup_opaque(pk, *key_id);
+    if (ret != 0) {
+        return ret;
+    }
+
+    return 0;
+}
+#endif /* MBEDTLS_PK_C */
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK)
diff --git a/programs/ssl/ssl_test_lib.h b/programs/ssl/ssl_test_lib.h
index d06e099..1da2dfb 100644
--- a/programs/ssl/ssl_test_lib.h
+++ b/programs/ssl/ssl_test_lib.h
@@ -235,6 +235,31 @@
                              psa_algorithm_t *psa_alg2,
                              psa_key_usage_t *usage,
                              mbedtls_pk_type_t key_type);
+
+#if defined(MBEDTLS_PK_C)
+/** Turn a non-opaque PK context into an opaque one with folowing steps:
+ * - extract the key data and attributes from the PK context.
+ * - import the key material into PSA.
+ * - free the provided PK context and re-initilize it as an opaque PK context
+ *   wrapping the PSA key imported in the above step.
+ *
+ * \param[in/out] pk    On input the non-opaque PK context which contains the
+ *                      key to be wrapped. On output the re-initialized PK
+ *                      context which represents the opaque version of the one
+ *                      provided as input.
+ * \param[in] psa_alg   The primary algorithm that will be associated to the
+ *                      PSA key.
+ * \param[in] psa_alg2  The enrollment algorithm that will be associated to the
+ *                      PSA key.
+ * \param[in] psa_usage The PSA key usage policy.
+ * \param[out] key_id   The PSA key identifier of the imported key.
+ *
+ * \return              \c 0 on sucess.
+ * \return              \c -1 on failure.
+ */
+int pk_wrap_as_opaque(mbedtls_pk_context *pk, psa_algorithm_t psa_alg, psa_algorithm_t psa_alg2,
+                      psa_key_usage_t psa_usage, mbedtls_svc_key_id_t *key_id);
+#endif /* MBEDTLS_PK_C */
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
diff --git a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
index 924b08c..8b91f0b 100644
--- a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
+++ b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers.h.jinja
@@ -122,7 +122,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -196,7 +196,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -266,7 +266,7 @@
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         if( drv->asymmetric == NULL ||
             drv->asymmetric->p_sign == NULL )
@@ -283,7 +283,7 @@
 
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -306,11 +306,11 @@
                 return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #if defined (MBEDTLS_PSA_P256M_DRIVER_ENABLED)
-            if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) &&
+            if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type(attributes) ) &&
                 PSA_ALG_IS_ECDSA(alg) &&
                 !PSA_ALG_ECDSA_IS_DETERMINISTIC( alg ) &&
-                PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type) == PSA_ECC_FAMILY_SECP_R1 &&
-                attributes->core.bits == 256 )
+                PSA_KEY_TYPE_ECC_GET_FAMILY(psa_get_key_type(attributes)) == PSA_ECC_FAMILY_SECP_R1 &&
+                psa_get_key_bits(attributes) == 256 )
             {
                 status = p256_transparent_sign_hash( attributes,
                                                      key_buffer,
@@ -370,7 +370,7 @@
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         if( drv->asymmetric == NULL ||
             drv->asymmetric->p_verify == NULL )
@@ -387,7 +387,7 @@
 
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -410,11 +410,11 @@
                 return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #if defined (MBEDTLS_PSA_P256M_DRIVER_ENABLED)
-            if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) &&
+            if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type(attributes) ) &&
                 PSA_ALG_IS_ECDSA(alg) &&
                 !PSA_ALG_ECDSA_IS_DETERMINISTIC( alg ) &&
-                PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type) == PSA_ECC_FAMILY_SECP_R1 &&
-                attributes->core.bits == 256 )
+                PSA_KEY_TYPE_ECC_GET_FAMILY(psa_get_key_type(attributes)) == PSA_ECC_FAMILY_SECP_R1 &&
+                psa_get_key_bits(attributes) == 256 )
             {
                 status = p256_transparent_verify_hash( attributes,
                                                        key_buffer,
@@ -517,7 +517,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
-                                                    attributes->core.lifetime );
+                                                    psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -609,7 +609,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
-                                                    attributes->core.lifetime );
+                                                    psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -707,8 +707,8 @@
     size_t *key_buffer_size )
 {
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
-    psa_key_type_t key_type = attributes->core.type;
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
+    psa_key_type_t key_type = psa_get_key_type(attributes);
 
     *key_buffer_size = 0;
     switch( location )
@@ -731,18 +731,33 @@
 
 static inline psa_status_t psa_driver_wrapper_generate_key(
     const psa_key_attributes_t *attributes,
+    const psa_key_production_parameters_t *params, size_t params_data_length,
     uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length )
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION(attributes->core.lifetime);
+        PSA_KEY_LIFETIME_GET_LOCATION(psa_get_key_lifetime(attributes));
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    int is_default_production =
+        psa_key_production_parameters_are_default(params, params_data_length);
+    if( location != PSA_KEY_LOCATION_LOCAL_STORAGE && !is_default_production )
+    {
+        /* We don't support passing custom production parameters
+         * to drivers yet. */
+        return PSA_ERROR_NOT_SUPPORTED;
+    }
+#else
+    int is_default_production = 1;
+    (void) is_default_production;
+#endif
 
     /* Try dynamically-registered SE interface first */
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         size_t pubkey_length = 0; /* We don't support this feature yet */
         if( drv->key_management == NULL ||
@@ -762,8 +777,11 @@
     {
         case PSA_KEY_LOCATION_LOCAL_STORAGE:
 #if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
-            /* Transparent drivers are limited to generating asymmetric keys */
-            if( PSA_KEY_TYPE_IS_ASYMMETRIC( attributes->core.type ) )
+            /* Transparent drivers are limited to generating asymmetric keys. */
+            /* We don't support passing custom production parameters
+             * to drivers yet. */
+            if( PSA_KEY_TYPE_IS_ASYMMETRIC( psa_get_key_type(attributes) ) &&
+                is_default_production )
             {
             /* Cycle through all known transparent accelerators */
 #if defined(PSA_CRYPTO_DRIVER_TEST)
@@ -775,9 +793,9 @@
                     break;
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #if defined(MBEDTLS_PSA_P256M_DRIVER_ENABLED)
-                if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) &&
-                    attributes->core.type == PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1) &&
-                    attributes->core.bits == 256 )
+                if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type(attributes) ) &&
+                    psa_get_key_type(attributes) == PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1) &&
+                    psa_get_key_bits(attributes) == 256 )
                 {
                     status = p256_transparent_generate_key( attributes,
                                                             key_buffer,
@@ -793,7 +811,8 @@
 
             /* Software fallback */
             status = psa_generate_key_internal(
-                attributes, key_buffer, key_buffer_size, key_buffer_length );
+                attributes, params, params_data_length,
+                key_buffer, key_buffer_size, key_buffer_length );
             break;
 
         /* Add cases for opaque driver here */
@@ -843,7 +862,7 @@
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         if( drv->key_management == NULL ||
             drv->key_management->p_import == NULL )
@@ -920,7 +939,7 @@
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         if( ( drv->key_management == NULL   ) ||
             ( drv->key_management->p_export == NULL ) )
@@ -975,13 +994,13 @@
 {% endmacro %}
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         /* Copying to a secure element is not implemented yet. */
         return( PSA_ERROR_NOT_SUPPORTED );
@@ -1025,7 +1044,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1115,7 +1134,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1192,7 +1211,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1265,7 +1284,7 @@
 {
     psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1665,7 +1684,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1717,7 +1736,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1766,7 +1785,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -1814,7 +1833,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2150,7 +2169,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2214,7 +2233,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2286,7 +2305,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2486,7 +2505,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2544,7 +2563,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2608,7 +2627,7 @@
 {
     psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
     psa_key_location_t location =
-        PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
 
     switch( location )
     {
@@ -2626,10 +2645,10 @@
                 return( status );
 #endif /* PSA_CRYPTO_DRIVER_TEST */
 #if defined(MBEDTLS_PSA_P256M_DRIVER_ENABLED)
-            if( PSA_KEY_TYPE_IS_ECC( attributes->core.type ) &&
+            if( PSA_KEY_TYPE_IS_ECC( psa_get_key_type(attributes) ) &&
                 PSA_ALG_IS_ECDH(alg) &&
-                PSA_KEY_TYPE_ECC_GET_FAMILY(attributes->core.type) == PSA_ECC_FAMILY_SECP_R1 &&
-                attributes->core.bits == 256 )
+                PSA_KEY_TYPE_ECC_GET_FAMILY(psa_get_key_type(attributes)) == PSA_ECC_FAMILY_SECP_R1 &&
+                psa_get_key_bits(attributes) == 256 )
             {
                 status = p256_transparent_key_agreement( attributes,
                                                          key_buffer,
diff --git a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers_no_static.c.jinja b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers_no_static.c.jinja
index 2aae628..261cd2a 100644
--- a/scripts/data_files/driver_templates/psa_crypto_driver_wrappers_no_static.c.jinja
+++ b/scripts/data_files/driver_templates/psa_crypto_driver_wrappers_no_static.c.jinja
@@ -88,9 +88,9 @@
     const psa_key_attributes_t *attributes,
     size_t *key_buffer_size )
 {
-    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
-    psa_key_type_t key_type = attributes->core.type;
-    size_t key_bits = attributes->core.bits;
+    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
+    psa_key_type_t key_type = psa_get_key_type(attributes);
+    size_t key_bits = psa_get_key_bits(attributes);
 
     *key_buffer_size = 0;
     switch( location )
@@ -144,7 +144,7 @@
     const psa_drv_se_t *drv;
     psa_drv_se_context_t *drv_context;
 
-    if( psa_get_se_driver( attributes->core.lifetime, &drv, &drv_context ) )
+    if( psa_get_se_driver( psa_get_key_lifetime(attributes), &drv, &drv_context ) )
     {
         if( ( drv->key_management == NULL ) ||
             ( drv->key_management->p_export_public == NULL ) )
@@ -203,7 +203,7 @@
 key_buffer_size,
 key_buffer_length
 {% endmacro %}
-    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime(attributes) );
     switch( location )
     {
 #if defined(PSA_CRYPTO_DRIVER_TEST)
diff --git a/tests/include/test/drivers/config_test_driver.h b/tests/include/test/drivers/config_test_driver.h
index 4eb27f0..ec8bcb6 100644
--- a/tests/include/test/drivers/config_test_driver.h
+++ b/tests/include/test/drivers/config_test_driver.h
@@ -40,5 +40,7 @@
 //#define MBEDTLS_MD_C
 //#define MBEDTLS_PEM_PARSE_C
 //#define MBEDTLS_BASE64_C
+//#define MBEDTLS_THREADING_C
+//#define MBEDTLS_THREADING_PTHREAD
 
 #endif /* MBEDTLS_CONFIG_H */
diff --git a/tests/include/test/ssl_helpers.h b/tests/include/test/ssl_helpers.h
index 9a078f6..335386b 100644
--- a/tests/include/test/ssl_helpers.h
+++ b/tests/include/test/ssl_helpers.h
@@ -114,6 +114,7 @@
     void (*cli_log_fun)(void *, int, const char *, int, const char *);
     int resize_buffers;
     int early_data;
+    int max_early_data_size;
 #if defined(MBEDTLS_SSL_CACHE_C)
     mbedtls_ssl_cache_context *cache;
 #endif
@@ -196,6 +197,13 @@
 #endif /* MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
 
 /*
+ * Random number generator aimed for TLS unitary tests. Its main purpose is to
+ * simplify the set-up of a random number generator for TLS
+ * unitary tests: no need to set up a good entropy source for example.
+ */
+int mbedtls_test_random(void *p_rng, unsigned char *output, size_t output_len);
+
+/*
  * This function can be passed to mbedtls to receive output logs from it. In
  * this case, it will count the instances of a mbedtls_test_ssl_log_pattern
  * in the received logged messages.
@@ -608,9 +616,7 @@
     mbedtls_test_handshake_test_options *client_options,
     mbedtls_test_handshake_test_options *server_options,
     mbedtls_ssl_session *session);
-#endif /* MBEDTLS_SSL_CLI_C && MBEDTLS_SSL_SRV_C &&
-          MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SESSION_TICKETS &&
-          MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED */
+#endif
 
 #define ECJPAKE_TEST_PWD        "bla"
 
diff --git a/tests/opt-testcases/tls13-kex-modes.sh b/tests/opt-testcases/tls13-kex-modes.sh
index 4581bc5..49f06e0 100755
--- a/tests/opt-testcases/tls13-kex-modes.sh
+++ b/tests/opt-testcases/tls13-kex-modes.sh
@@ -23,7 +23,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -s "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -41,7 +41,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -78,7 +78,7 @@
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -s "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -96,7 +96,7 @@
             -s "found pre_shared_key extension" \
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -133,7 +133,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -151,7 +151,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -188,7 +188,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -206,7 +206,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -261,7 +261,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -280,7 +280,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -319,7 +319,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -338,7 +338,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -377,7 +377,7 @@
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -s "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -396,7 +396,7 @@
             -s "found pre_shared_key extension" \
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -435,7 +435,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -454,7 +454,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -493,7 +493,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -512,7 +512,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -550,8 +550,9 @@
             -s "found pre_shared_key extension" \
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
+            -s "No suitable PSK key exchange mode" \
             -S "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -572,7 +573,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -592,7 +593,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -633,7 +634,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -653,7 +654,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -694,7 +695,7 @@
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -733,8 +734,9 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
+            -s "No suitable PSK key exchange mode" \
             -S "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -754,7 +756,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -793,7 +795,7 @@
             -S "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -921,7 +923,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -s "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -938,7 +940,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -973,7 +975,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -990,7 +992,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1025,7 +1027,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1042,7 +1044,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1078,7 +1080,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1096,7 +1098,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1133,7 +1135,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1151,7 +1153,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1188,7 +1190,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1206,7 +1208,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1243,7 +1245,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1261,7 +1263,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1299,7 +1301,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1318,7 +1320,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1357,7 +1359,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -s "key exchange mode: psk_ephemeral"  \
             -S "key exchange mode: ephemeral"
@@ -1376,7 +1378,7 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1413,8 +1415,9 @@
             -s "found pre_shared_key extension" \
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -S "Found PSK KEX MODE" \
+            -s "No suitable PSK key exchange mode" \
             -S "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1433,7 +1436,7 @@
             -s "Found PSK_EPHEMERAL KEX MODE" \
             -s "Found PSK KEX MODE" \
             -s "Pre shared key found" \
-            -S "No matched PSK or ticket" \
+            -S "No usable PSK or ticket" \
             -S "key exchange mode: psk$"  \
             -S "key exchange mode: psk_ephemeral"  \
             -s "key exchange mode: ephemeral"
@@ -1580,7 +1583,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket"
+            -s "No usable PSK or ticket"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -1665,7 +1668,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -1711,7 +1714,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -1769,7 +1772,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -1827,7 +1830,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket"
+            -s "No usable PSK or ticket"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -1870,7 +1873,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -1916,7 +1919,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -2047,7 +2050,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket"
+            -s "No usable PSK or ticket"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -2106,7 +2109,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "key exchange mode: ephemeral"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2152,7 +2155,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2199,7 +2202,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "key exchange mode: ephemeral"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2288,7 +2291,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2348,7 +2351,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket"
+            -s "No usable PSK or ticket"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -2392,7 +2395,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2438,7 +2441,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket"
+            -s "No usable PSK or ticket"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
 requires_config_enabled MBEDTLS_SSL_SRV_C
@@ -2485,7 +2488,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2532,7 +2535,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2595,7 +2598,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -c "Selected key exchange mode: ephemeral" \
             -c "HTTP/1.0 200 OK"
 
@@ -2643,7 +2646,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "ClientHello message misses mandatory extensions."
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
@@ -2690,7 +2693,7 @@
             -c "client hello, adding pre_shared_key extension, omitting PSK binder list" \
             -c "client hello, adding psk_key_exchange_modes extension" \
             -c "client hello, adding PSK binder list" \
-            -s "No matched PSK or ticket" \
+            -s "No usable PSK or ticket" \
             -s "key exchange mode: ephemeral"
 
 requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_3
diff --git a/tests/opt-testcases/tls13-misc.sh b/tests/opt-testcases/tls13-misc.sh
index 4e6bf87..066fa3f 100755
--- a/tests/opt-testcases/tls13-misc.sh
+++ b/tests/opt-testcases/tls13-misc.sh
@@ -263,7 +263,7 @@
 run_test    "TLS 1.3 m->G: EarlyData: basic check, good" \
             "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK \
                          --earlydata --maxearlydata 16384 --disable-client-cert" \
-            "$P_CLI debug_level=4 early_data=$EARLY_DATA_INPUT reco_mode=1 reconnect=1 reco_delay=900" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=900" \
             0 \
             -c "received max_early_data_size: 16384" \
             -c "Reconnecting with saved session" \
@@ -285,9 +285,34 @@
                              MBEDTLS_SSL_EARLY_DATA
 requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
                              MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
+run_test    "TLS 1.3 m->G: EarlyData: write early data, good" \
+            "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --earlydata --disable-client-cert" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1 reco_delay=900" \
+            0 \
+            -c "Reconnecting with saved session" \
+            -c "NewSessionTicket: early_data(42) extension received." \
+            -c "ClientHello: early_data(42) extension exists." \
+            -c "EncryptedExtensions: early_data(42) extension received." \
+            -c "EncryptedExtensions: early_data(42) extension exists." \
+            -c "<= write early_data" \
+            -c "<= write EndOfEarlyData" \
+            -s "Parsing extension 'Early Data/42' (0 bytes)" \
+            -s "Sending extension Early Data/42 (0 bytes)" \
+            -s "END OF EARLY DATA (5) was received." \
+            -s "early data accepted" \
+            -s "decrypted early data with length"
+
+requires_gnutls_tls1_3
+requires_config_enabled MBEDTLS_DEBUG_C
+requires_config_enabled MBEDTLS_SSL_CLI_C
+requires_all_configs_enabled MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED \
+                             MBEDTLS_SSL_EARLY_DATA
+requires_any_configs_enabled MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED
 run_test    "TLS 1.3 m->G: EarlyData: no early_data in NewSessionTicket, good" \
             "$G_NEXT_SRV -d 10 --priority=NORMAL:-VERS-ALL:+VERS-TLS1.3:+CIPHER-ALL:+ECDHE-PSK:+PSK --disable-client-cert" \
-            "$P_CLI debug_level=4 early_data=$EARLY_DATA_INPUT reco_mode=1 reconnect=1" \
+            "$P_CLI debug_level=4 early_data=1 reco_mode=1 reconnect=1" \
             0 \
             -c "Reconnecting with saved session" \
             -C "NewSessionTicket: early_data(42) extension received." \
@@ -328,8 +353,8 @@
          -s "key exchange mode: ephemeral" \
          -S "key exchange mode: psk_ephemeral" \
          -S "key exchange mode: psk$" \
-         -s "No suitable key exchange mode" \
-         -s "No matched PSK or ticket"
+         -s "No suitable PSK key exchange mode" \
+         -s "No usable PSK or ticket"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
                              MBEDTLS_SSL_SRV_C MBEDTLS_SSL_CLI_C MBEDTLS_DEBUG_C \
@@ -340,7 +365,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=psk_or_ephemeral reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
@@ -356,8 +381,8 @@
          -s "key exchange mode: ephemeral" \
          -S "key exchange mode: psk_ephemeral" \
          -S "key exchange mode: psk$" \
-         -s "No suitable key exchange mode" \
-         -s "No matched PSK or ticket"
+         -s "No suitable PSK key exchange mode" \
+         -s "No usable PSK or ticket"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
                              MBEDTLS_SSL_SRV_C MBEDTLS_SSL_CLI_C MBEDTLS_DEBUG_C \
@@ -368,7 +393,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=psk_or_ephemeral reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
@@ -384,8 +409,8 @@
          -s "key exchange mode: ephemeral" \
          -S "key exchange mode: psk_ephemeral" \
          -S "key exchange mode: psk$" \
-         -s "No suitable key exchange mode" \
-         -s "No matched PSK or ticket"
+         -s "No suitable PSK key exchange mode" \
+         -s "No usable PSK or ticket"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
                              MBEDTLS_SSL_SRV_C MBEDTLS_SSL_CLI_C MBEDTLS_DEBUG_C \
@@ -400,8 +425,8 @@
          -s "key exchange mode: ephemeral" \
          -S "key exchange mode: psk_ephemeral" \
          -S "key exchange mode: psk$" \
-         -s "No suitable key exchange mode" \
-         -s "No matched PSK or ticket"
+         -s "No suitable PSK key exchange mode" \
+         -s "No usable PSK or ticket"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
                              MBEDTLS_SSL_SRV_C MBEDTLS_SSL_CLI_C MBEDTLS_DEBUG_C \
@@ -412,7 +437,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=ephemeral_all reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity" \
          -s "key exchange mode: psk_ephemeral"
 
@@ -425,7 +450,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=ephemeral_all reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity" \
          -s "key exchange mode: psk_ephemeral"
 
@@ -443,8 +468,8 @@
          -s "key exchange mode: ephemeral" \
          -S "key exchange mode: psk_ephemeral" \
          -S "key exchange mode: psk$" \
-         -s "No suitable key exchange mode" \
-         -s "No matched PSK or ticket"
+         -s "No suitable PSK key exchange mode" \
+         -s "No usable PSK or ticket"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
                              MBEDTLS_SSL_SRV_C MBEDTLS_SSL_CLI_C MBEDTLS_DEBUG_C \
@@ -456,7 +481,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=all reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity"
 
 requires_all_configs_enabled MBEDTLS_SSL_SESSION_TICKETS \
@@ -469,7 +494,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=all reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity" \
          -s "key exchange mode: psk_ephemeral"
 
@@ -483,7 +508,7 @@
          "$P_CLI debug_level=4 tls13_kex_modes=all reconnect=1" \
          0 \
          -c "Pre-configured PSK number = 1" \
-         -S "No suitable key exchange mode" \
+         -S "No suitable PSK key exchange mode" \
          -s "found matched identity" \
          -s "key exchange mode: psk_ephemeral"
 
@@ -510,3 +535,18 @@
          -s "$( tail -1 $EARLY_DATA_INPUT )"                                \
          -s "200 early data bytes read"                                     \
          -s "106 early data bytes read"
+
+requires_all_configs_enabled MBEDTLS_SSL_EARLY_DATA MBEDTLS_SSL_SESSION_TICKETS \
+                             MBEDTLS_SSL_CLI_C MBEDTLS_SSL_SRV_C \
+                             MBEDTLS_DEBUG_C MBEDTLS_HAVE_TIME \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED \
+                             MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED
+run_test "TLS 1.3 m->m: Ephemeral over PSK kex with early data enabled" \
+         "$P_SRV force_version=tls13 debug_level=4 max_early_data_size=1024" \
+         "$P_CLI debug_level=4 early_data=1 tls13_kex_modes=psk_or_ephemeral reco_mode=1 reconnect=1" \
+         0 \
+         -s "key exchange mode: ephemeral" \
+         -S "key exchange mode: psk" \
+         -s "found matched identity" \
+         -s "EarlyData: rejected, not a session resumption" \
+         -C "EncryptedExtensions: early_data(42) extension exists."
diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index c25f044..fcb465e 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -212,10 +212,21 @@
     # defined in this script whose name starts with "component_".
     ALL_COMPONENTS=$(compgen -A function component_ | sed 's/component_//')
 
-    # Delay determinig SUPPORTED_COMPONENTS until the command line options have a chance to override
+    # Delay determining SUPPORTED_COMPONENTS until the command line options have a chance to override
     # the commands set by the environment
 }
 
+setup_quiet_wrappers()
+{
+    # Pick up "quiet" wrappers for make and cmake, which don't output very much
+    # unless there is an error. This reduces logging overhead in the CI.
+    #
+    # Note that the cmake wrapper breaks unless we use an absolute path here.
+    if [[ -e ${PWD}/tests/scripts/quiet ]]; then
+        export PATH=${PWD}/tests/scripts/quiet:$PATH
+    fi
+}
+
 # Test whether the component $1 is included in the command line patterns.
 is_component_included()
 {
@@ -889,6 +900,16 @@
     # Dynamic secure element support is a deprecated feature and needs to be disabled here.
     # This is done to have the same form of psa_key_attributes_s for libdriver and library.
     scripts/config.py unset MBEDTLS_PSA_CRYPTO_SE_C
+
+    # If threading is enabled on the normal build, then we need to enable it in the drivers as well,
+    # otherwise we will end up running multithreaded tests without mutexes to protect them.
+    if scripts/config.py get MBEDTLS_THREADING_C; then
+        scripts/config.py -f "$CONFIG_TEST_DRIVER_H" set MBEDTLS_THREADING_C
+    fi
+
+    if scripts/config.py get MBEDTLS_THREADING_PTHREAD; then
+        scripts/config.py -f "$CONFIG_TEST_DRIVER_H" set MBEDTLS_THREADING_PTHREAD
+    fi
 }
 
 # When called with no parameter this function disables all builtin curves.
@@ -6353,6 +6374,7 @@
 pre_initialize_variables
 pre_parse_command_line "$@"
 
+setup_quiet_wrappers
 pre_check_git
 pre_restore_files
 pre_back_up
diff --git a/tests/scripts/analyze_outcomes.py b/tests/scripts/analyze_outcomes.py
index 2a29f71..5b4deb6 100755
--- a/tests/scripts/analyze_outcomes.py
+++ b/tests/scripts/analyze_outcomes.py
@@ -570,6 +570,11 @@
                     re.compile(r'mbedtls_ct_zeroize_if .*'),
                     re.compile(r'mbedtls_ct_memmove_left .*')
                 ],
+                'test_suite_psa_crypto': [
+                    # We don't support generate_key_ext entry points
+                    # in drivers yet.
+                    re.compile(r'PSA generate key ext: RSA, e=.*'),
+                ],
             }
         }
     },
diff --git a/tests/scripts/check_files.py b/tests/scripts/check_files.py
index 65fbc9f..4483f55 100755
--- a/tests/scripts/check_files.py
+++ b/tests/scripts/check_files.py
@@ -173,6 +173,8 @@
         b'sh': 'sh',
     }
 
+    path_exemptions = re.compile(r'tests/scripts/quiet/.*')
+
     def is_valid_shebang(self, first_line, filepath):
         m = re.match(self._shebang_re, first_line)
         if not m:
diff --git a/tests/scripts/quiet/cmake b/tests/scripts/quiet/cmake
new file mode 100755
index 0000000..930931d
--- /dev/null
+++ b/tests/scripts/quiet/cmake
@@ -0,0 +1,19 @@
+#! /usr/bin/env bash
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# This swallows the output of the wrapped tool, unless there is an error.
+# This helps reduce excess logging in the CI.
+
+# If you are debugging a build / CI issue, you can get complete unsilenced logs
+# by un-commenting the following line (or setting VERBOSE_LOGS in your environment):
+
+# export VERBOSE_LOGS=1
+
+# don't silence invocations containing these arguments
+export NO_SILENCE=" --version "
+
+export TOOL="cmake"
+
+exec "$(dirname "$0")/quiet.sh" "$@"
diff --git a/tests/scripts/quiet/make b/tests/scripts/quiet/make
new file mode 100755
index 0000000..d022551
--- /dev/null
+++ b/tests/scripts/quiet/make
@@ -0,0 +1,19 @@
+#! /usr/bin/env bash
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# This swallows the output of the wrapped tool, unless there is an error.
+# This helps reduce excess logging in the CI.
+
+# If you are debugging a build / CI issue, you can get complete unsilenced logs
+# by un-commenting the following line (or setting VERBOSE_LOGS in your environment):
+
+# export VERBOSE_LOGS=1
+
+# don't silence invocations containing these arguments
+export NO_SILENCE=" --version | test "
+
+export TOOL="make"
+
+exec "$(dirname "$0")/quiet.sh" "$@"
diff --git a/tests/scripts/quiet/quiet.sh b/tests/scripts/quiet/quiet.sh
new file mode 100755
index 0000000..30ee569
--- /dev/null
+++ b/tests/scripts/quiet/quiet.sh
@@ -0,0 +1,75 @@
+# -*-mode: sh; sh-shell: bash -*-
+#
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# This swallows the output of the wrapped tool, unless there is an error.
+# This helps reduce excess logging in the CI.
+
+# If you are debugging a build / CI issue, you can get complete unsilenced logs
+# by un-commenting the following line (or setting VERBOSE_LOGS in your environment):
+#
+# VERBOSE_LOGS=1
+#
+# This script provides most of the functionality for the adjacent make and cmake
+# wrappers.
+#
+# It requires two variables to be set:
+#
+# TOOL       - the name of the tool that is being wrapped (with no path), e.g. "make"
+#
+# NO_SILENCE - a regex that describes the commandline arguments for which output will not
+#              be silenced, e.g. " --version | test ". In this example, "make lib test" will
+#              not be silent, but "make lib" will be.
+
+# Locate original tool
+TOOL_WITH_PATH=$(dirname "$0")/$TOOL
+ORIGINAL_TOOL=$(type -ap "${TOOL}" | grep -v -Fx "$TOOL_WITH_PATH" | head -n1)
+
+print_quoted_args() {
+    # similar to printf '%q' "$@"
+    # but produce more human-readable results for common/simple cases like "a b"
+    for a in "$@"; do
+        # Get bash to quote the string
+        printf -v q '%q' "$a"
+        simple_pattern="^([-[:alnum:]_+./:@]+=)?([^']*)$"
+        if [[ "$a" != "$q" && $a =~ $simple_pattern ]]; then
+            # a requires some quoting (a != q), but has no single quotes, so we can
+            # simplify the quoted form - e.g.:
+            #   a b        -> 'a b'
+            #   CFLAGS=a b -> CFLAGS='a b'
+            q="${BASH_REMATCH[1]}'${BASH_REMATCH[2]}'"
+        fi
+        printf " %s" "$q"
+    done
+}
+
+if [[ ! " $* " =~ " --version " ]]; then
+    # Display the command being invoked - if it succeeds, this is all that will
+    # be displayed. Don't do this for invocations with --version, because
+    # this output is often parsed by scripts, so we don't want to modify it.
+    printf %s "${TOOL}"    1>&2
+    print_quoted_args "$@" 1>&2
+    echo                   1>&2
+fi
+
+if [[ " $@ " =~ $NO_SILENCE || -n "${VERBOSE_LOGS}" ]]; then
+    # Run original command with no output supression
+    exec "${ORIGINAL_TOOL}" "$@"
+else
+    # Run original command and capture output & exit status
+    TMPFILE=$(mktemp "quiet-${TOOL}.XXXXXX")
+    "${ORIGINAL_TOOL}" "$@" > "${TMPFILE}" 2>&1
+    EXIT_STATUS=$?
+
+    if [[ $EXIT_STATUS -ne 0 ]]; then
+        # On error, display the full output
+        cat "${TMPFILE}"
+    fi
+
+    # Remove tmpfile
+    rm "${TMPFILE}"
+
+    # Propagate the exit status
+    exit $EXIT_STATUS
+fi
diff --git a/tests/src/drivers/test_driver_key_management.c b/tests/src/drivers/test_driver_key_management.c
index a3d532d..866b31e 100644
--- a/tests/src/drivers/test_driver_key_management.c
+++ b/tests/src/drivers/test_driver_key_management.c
@@ -225,10 +225,13 @@
         defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
         return libtestdriver1_mbedtls_psa_rsa_generate_key(
             (const libtestdriver1_psa_key_attributes_t *) attributes,
+            NULL, 0, /* We don't support custom e in the test driver yet */
             key, key_size, key_length);
 #elif defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
         return mbedtls_psa_rsa_generate_key(
-            attributes, key, key_size, key_length);
+            attributes,
+            NULL, 0, /* We don't support custom e in the test driver yet */
+            key, key_size, key_length);
 #endif
     } else if (PSA_KEY_TYPE_IS_DH(psa_get_key_type(attributes))
                && PSA_KEY_TYPE_IS_KEY_PAIR(psa_get_key_type(attributes))) {
diff --git a/tests/src/drivers/test_driver_signature.c b/tests/src/drivers/test_driver_signature.c
index 00dd3e2..4fca5d1 100644
--- a/tests/src/drivers/test_driver_signature.c
+++ b/tests/src/drivers/test_driver_signature.c
@@ -49,7 +49,7 @@
     size_t signature_size,
     size_t *signature_length)
 {
-    if (attributes->core.type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+    if (attributes->type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
         if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
             PSA_ALG_IS_RSA_PSS(alg)) {
 #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \
@@ -71,7 +71,7 @@
         } else {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
-    } else if (PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    } else if (PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         if (PSA_ALG_IS_ECDSA(alg)) {
 #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \
             (defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
@@ -116,7 +116,7 @@
     const uint8_t *signature,
     size_t signature_length)
 {
-    if (PSA_KEY_TYPE_IS_RSA(attributes->core.type)) {
+    if (PSA_KEY_TYPE_IS_RSA(attributes->type)) {
         if (PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) ||
             PSA_ALG_IS_RSA_PSS(alg)) {
 #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \
@@ -138,7 +138,7 @@
         } else {
             return PSA_ERROR_INVALID_ARGUMENT;
         }
-    } else if (PSA_KEY_TYPE_IS_ECC(attributes->core.type)) {
+    } else if (PSA_KEY_TYPE_IS_ECC(attributes->type)) {
         if (PSA_ALG_IS_ECDSA(alg)) {
 #if defined(MBEDTLS_TEST_LIBTESTDRIVER1) && \
             (defined(LIBTESTDRIVER1_MBEDTLS_PSA_BUILTIN_ALG_ECDSA) || \
diff --git a/tests/src/helpers.c b/tests/src/helpers.c
index b9233be..2433422 100644
--- a/tests/src/helpers.c
+++ b/tests/src/helpers.c
@@ -31,7 +31,16 @@
 #endif /* MBEDTLS_THREADING_C */
 
 /*----------------------------------------------------------------------------*/
-/* Mbedtls Test Info accessors */
+/* Mbedtls Test Info accessors
+ *
+ * NOTE - there are two types of accessors here: public accessors and internal
+ * accessors. The public accessors have prototypes in helpers.h and lock
+ * mbedtls_test_info_mutex (if mutexes are enabled). The _internal accessors,
+ * which are expected to be used from this module *only*, do not lock the mutex.
+ * These are designed to be called from within public functions which already
+ * hold the mutex. The main reason for this difference is the need to set
+ * multiple test data values atomically (without releasing the mutex) to prevent
+ * race conditions. */
 
 mbedtls_test_result_t mbedtls_test_get_result(void)
 {
@@ -50,8 +59,8 @@
     return result;
 }
 
-void mbedtls_test_set_result(mbedtls_test_result_t result, const char *test,
-                             int line_no, const char *filename)
+static void mbedtls_test_set_result_internal(mbedtls_test_result_t result, const char *test,
+                                             int line_no, const char *filename)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -144,7 +153,7 @@
     return step;
 }
 
-void mbedtls_test_reset_step(void)
+static void mbedtls_test_reset_step_internal(void)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -178,7 +187,7 @@
 #endif /* MBEDTLS_THREADING_C */
 }
 
-void mbedtls_test_set_line1(const char *line)
+static void mbedtls_test_set_line1_internal(const char *line)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -203,7 +212,7 @@
 #endif /* MBEDTLS_THREADING_C */
 }
 
-void mbedtls_test_set_line2(const char *line)
+static void mbedtls_test_set_line2_internal(const char *line)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -219,7 +228,19 @@
 #if defined(MBEDTLS_TEST_MUTEX_USAGE)
 const char *mbedtls_test_get_mutex_usage_error(void)
 {
-    return mbedtls_test_info.mutex_usage_error;
+    const char *usage_error;
+
+#ifdef MBEDTLS_THREADING_C
+    mbedtls_mutex_lock(&mbedtls_test_info_mutex);
+#endif /* MBEDTLS_THREADING_C */
+
+    usage_error = mbedtls_test_info.mutex_usage_error;
+
+#ifdef MBEDTLS_THREADING_C
+    mbedtls_mutex_unlock(&mbedtls_test_info_mutex);
+#endif /* MBEDTLS_THREADING_C */
+
+    return usage_error;
 }
 
 void mbedtls_test_set_mutex_usage_error(const char *msg)
@@ -255,7 +276,7 @@
     return test_case_uses_negative_0;
 }
 
-void mbedtls_test_set_case_uses_negative_0(unsigned uses)
+static void mbedtls_test_set_case_uses_negative_0_internal(unsigned uses)
 {
     /* Internal function only - mbedtls_test_info_mutex should be held prior
      * to calling this function. */
@@ -350,7 +371,7 @@
     if (mbedtls_test_info.result != MBEDTLS_TEST_RESULT_FAILED) {
         /* If we have already recorded the test as having failed then don't
          * overwrite any previous information about the failure. */
-        mbedtls_test_set_result(MBEDTLS_TEST_RESULT_FAILED, test, line_no, filename);
+        mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_FAILED, test, line_no, filename);
     }
 }
 
@@ -373,7 +394,7 @@
     mbedtls_mutex_lock(&mbedtls_test_info_mutex);
 #endif /* MBEDTLS_THREADING_C */
 
-    mbedtls_test_set_result(MBEDTLS_TEST_RESULT_SKIPPED, test, line_no, filename);
+    mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_SKIPPED, test, line_no, filename);
 
 #ifdef MBEDTLS_THREADING_C
     mbedtls_mutex_unlock(&mbedtls_test_info_mutex);
@@ -386,13 +407,13 @@
     mbedtls_mutex_lock(&mbedtls_test_info_mutex);
 #endif /* MBEDTLS_THREADING_C */
 
-    mbedtls_test_set_result(MBEDTLS_TEST_RESULT_SUCCESS, 0, 0, 0);
-    mbedtls_test_reset_step();
-    mbedtls_test_set_line1(NULL);
-    mbedtls_test_set_line2(NULL);
+    mbedtls_test_set_result_internal(MBEDTLS_TEST_RESULT_SUCCESS, 0, 0, 0);
+    mbedtls_test_reset_step_internal();
+    mbedtls_test_set_line1_internal(NULL);
+    mbedtls_test_set_line2_internal(NULL);
 
 #if defined(MBEDTLS_BIGNUM_C)
-    mbedtls_test_set_case_uses_negative_0(0);
+    mbedtls_test_set_case_uses_negative_0_internal(0);
 #endif
 
 #ifdef MBEDTLS_THREADING_C
@@ -424,11 +445,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %lld",
                                 value1, (long long) value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %lld",
                                 value2, (long long) value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
@@ -462,11 +483,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %llu",
                                 value1, value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %llu",
                                 value2, value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
@@ -500,11 +521,11 @@
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "lhs = 0x%016llx = %lld",
                                 (unsigned long long) value1, value1);
-        mbedtls_test_set_line1(buf);
+        mbedtls_test_set_line1_internal(buf);
         (void) mbedtls_snprintf(buf, sizeof(buf),
                                 "rhs = 0x%016llx = %lld",
                                 (unsigned long long) value2, value2);
-        mbedtls_test_set_line2(buf);
+        mbedtls_test_set_line2_internal(buf);
     }
 
 #ifdef MBEDTLS_THREADING_C
diff --git a/tests/src/test_helpers/ssl_helpers.c b/tests/src/test_helpers/ssl_helpers.c
index 7a28bd8..56e03f1 100644
--- a/tests/src/test_helpers/ssl_helpers.c
+++ b/tests/src/test_helpers/ssl_helpers.c
@@ -12,9 +12,7 @@
 #include "mbedtls/psa_util.h"
 
 #if defined(MBEDTLS_SSL_TLS_C)
-#if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
-static int rng_seed = 0xBEEF;
-static int rng_get(void *p_rng, unsigned char *output, size_t output_len)
+int mbedtls_test_random(void *p_rng, unsigned char *output, size_t output_len)
 {
     (void) p_rng;
     for (size_t i = 0; i < output_len; i++) {
@@ -23,7 +21,6 @@
 
     return 0;
 }
-#endif
 
 void mbedtls_test_ssl_log_analyzer(void *ctx, int level,
                                    const char *file, int line,
@@ -46,6 +43,8 @@
     mbedtls_test_handshake_test_options *opts)
 {
 #if defined(MBEDTLS_SSL_HANDSHAKE_WITH_CERT_ENABLED)
+    static int rng_seed = 0xBEEF;
+
     srand(rng_seed);
     rng_seed += 0xD0;
 #endif
@@ -68,6 +67,7 @@
     opts->legacy_renegotiation = MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION;
     opts->resize_buffers = 1;
     opts->early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+    opts->max_early_data_size = -1;
 #if defined(MBEDTLS_SSL_CACHE_C)
     TEST_CALLOC(opts->cache, 1);
     mbedtls_ssl_cache_init(opts->cache);
@@ -685,9 +685,20 @@
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if (opaque_alg != 0) {
-        TEST_EQUAL(mbedtls_pk_wrap_as_opaque(cert->pkey, &key_slot,
-                                             opaque_alg, opaque_usage,
-                                             opaque_alg2), 0);
+        psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
+        /* Use a fake key usage to get a successful initial guess for the PSA attributes. */
+        TEST_EQUAL(mbedtls_pk_get_psa_attributes(cert->pkey, PSA_KEY_USAGE_SIGN_HASH,
+                                                 &key_attr), 0);
+        /* Then manually usage, alg and alg2 as requested by the test. */
+        psa_set_key_usage_flags(&key_attr, opaque_usage);
+        psa_set_key_algorithm(&key_attr, opaque_alg);
+        if (opaque_alg2 != PSA_ALG_NONE) {
+            psa_set_key_enrollment_algorithm(&key_attr, opaque_alg2);
+        }
+        TEST_EQUAL(mbedtls_pk_import_into_psa(cert->pkey, &key_attr, &key_slot), 0);
+        mbedtls_pk_free(cert->pkey);
+        mbedtls_pk_init(cert->pkey);
+        TEST_EQUAL(mbedtls_pk_setup_opaque(cert->pkey, key_slot), 0);
     }
 #else
     (void) opaque_alg;
@@ -744,7 +755,7 @@
 
     mbedtls_ssl_init(&(ep->ssl));
     mbedtls_ssl_config_init(&(ep->conf));
-    mbedtls_ssl_conf_rng(&(ep->conf), rng_get, NULL);
+    mbedtls_ssl_conf_rng(&(ep->conf), mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_conf_get_user_data_p(&ep->conf) == NULL);
     TEST_EQUAL(mbedtls_ssl_conf_get_user_data_n(&ep->conf), 0);
@@ -815,6 +826,13 @@
 
 #if defined(MBEDTLS_SSL_EARLY_DATA)
     mbedtls_ssl_conf_early_data(&(ep->conf), options->early_data);
+#if defined(MBEDTLS_SSL_SRV_C)
+    if (endpoint_type == MBEDTLS_SSL_IS_SERVER &&
+        (options->max_early_data_size >= 0)) {
+        mbedtls_ssl_conf_max_early_data_size(&(ep->conf),
+                                             options->max_early_data_size);
+    }
+#endif
 #endif
 
 #if defined(MBEDTLS_SSL_CACHE_C) && defined(MBEDTLS_SSL_SRV_C)
diff --git a/tests/src/threading_helpers.c b/tests/src/threading_helpers.c
index ff0c712..c1686c2 100644
--- a/tests/src/threading_helpers.c
+++ b/tests/src/threading_helpers.c
@@ -317,22 +317,26 @@
 
 void mbedtls_test_mutex_usage_check(void)
 {
-    if (live_mutexes != 0) {
-        /* A positive number (more init than free) means that a mutex resource
-         * is leaking (on platforms where a mutex consumes more than the
-         * mbedtls_threading_mutex_t object itself). The rare case of a
-         * negative number means a missing init somewhere. */
-        mbedtls_fprintf(stdout, "[mutex: %d leaked] ", live_mutexes);
-        live_mutexes = 0;
-        mbedtls_test_set_mutex_usage_error("missing free");
+    if (mutex_functions.lock(&mbedtls_test_mutex_mutex) == 0) {
+        if (live_mutexes != 0) {
+            /* A positive number (more init than free) means that a mutex resource
+             * is leaking (on platforms where a mutex consumes more than the
+             * mbedtls_threading_mutex_t object itself). The (hopefully) rare
+             * case of a negative number means a missing init somewhere. */
+            mbedtls_fprintf(stdout, "[mutex: %d leaked] ", live_mutexes);
+            live_mutexes = 0;
+            mbedtls_test_set_mutex_usage_error("missing free");
+        }
+        if (mbedtls_test_get_mutex_usage_error() != NULL &&
+            mbedtls_test_get_result() != MBEDTLS_TEST_RESULT_FAILED) {
+            /* Functionally, the test passed. But there was a mutex usage error,
+             * so mark the test as failed after all. */
+            mbedtls_test_fail("Mutex usage error", __LINE__, __FILE__);
+        }
+        mbedtls_test_set_mutex_usage_error(NULL);
+
+        mutex_functions.unlock(&mbedtls_test_mutex_mutex);
     }
-    if (mbedtls_test_get_mutex_usage_error() != NULL &&
-        mbedtls_test_get_result() != MBEDTLS_TEST_RESULT_FAILED) {
-        /* Functionally, the test passed. But there was a mutex usage error,
-         * so mark the test as failed after all. */
-        mbedtls_test_fail("Mutex usage error", __LINE__, __FILE__);
-    }
-    mbedtls_test_set_mutex_usage_error(NULL);
 }
 
 void mbedtls_test_mutex_usage_end(void)
diff --git a/tests/suites/test_suite_debug.function b/tests/suites/test_suite_debug.function
index eeefc95..70e7bad 100644
--- a/tests/suites/test_suite_debug.function
+++ b/tests/suites/test_suite_debug.function
@@ -2,6 +2,7 @@
 #include "debug_internal.h"
 #include "string.h"
 #include "mbedtls/pk.h"
+#include <test/ssl_helpers.h>
 
 struct buffer_data {
     char buf[2000];
@@ -65,11 +66,12 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_config_defaults(&conf,
-                                MBEDTLS_SSL_IS_CLIENT,
-                                MBEDTLS_SSL_TRANSPORT_STREAM,
-                                MBEDTLS_SSL_PRESET_DEFAULT);
-
+    TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT),
+               0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_dbg(&conf, string_debug, &buffer);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
@@ -103,11 +105,12 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_config_defaults(&conf,
-                                MBEDTLS_SSL_IS_CLIENT,
-                                MBEDTLS_SSL_TRANSPORT_STREAM,
-                                MBEDTLS_SSL_PRESET_DEFAULT);
-
+    TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT),
+               0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_dbg(&conf, string_debug, &buffer);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
@@ -138,11 +141,12 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_config_defaults(&conf,
-                                MBEDTLS_SSL_IS_CLIENT,
-                                MBEDTLS_SSL_TRANSPORT_STREAM,
-                                MBEDTLS_SSL_PRESET_DEFAULT);
-
+    TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT),
+               0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_dbg(&conf, string_debug, &buffer);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
@@ -175,11 +179,12 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_config_defaults(&conf,
-                                MBEDTLS_SSL_IS_CLIENT,
-                                MBEDTLS_SSL_TRANSPORT_STREAM,
-                                MBEDTLS_SSL_PRESET_DEFAULT);
-
+    TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT),
+               0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_dbg(&conf, string_debug, &buffer);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
@@ -214,11 +219,12 @@
     memset(buffer.buf, 0, 2000);
     buffer.ptr = buffer.buf;
 
-    mbedtls_ssl_config_defaults(&conf,
-                                MBEDTLS_SSL_IS_CLIENT,
-                                MBEDTLS_SSL_TRANSPORT_STREAM,
-                                MBEDTLS_SSL_PRESET_DEFAULT);
-
+    TEST_EQUAL(mbedtls_ssl_config_defaults(&conf,
+                                           MBEDTLS_SSL_IS_CLIENT,
+                                           MBEDTLS_SSL_TRANSPORT_STREAM,
+                                           MBEDTLS_SSL_PRESET_DEFAULT),
+               0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_dbg(&conf, string_debug, &buffer);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
diff --git a/tests/suites/test_suite_ecdh.data b/tests/suites/test_suite_ecdh.data
index cc58432..8d06067 100644
--- a/tests/suites/test_suite_ecdh.data
+++ b/tests/suites/test_suite_ecdh.data
@@ -100,3 +100,19 @@
 ECDH get_params with mismatched groups: their SECP256R1, our BP256R1
 depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED:MBEDTLS_ECP_DP_BP256R1_ENABLED
 ecdh_exchange_get_params_fail:MBEDTLS_ECP_DP_BP256R1:"1234567812345678123456781234567812345678123456781234567812345678":MBEDTLS_ECP_DP_SECP256R1:"04dad0b65394221cf9b051e1feca5787d098dfe637fc90b9ef945d0c37725811805271a0461cdb8252d61f1c456fa3e59ab1f45b33accf5f58389e0577b8990bb3":1:MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+
+Context get ECP Group #1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecdh_context_grp:MBEDTLS_ECP_DP_SECP256R1
+
+Context get ECP Group #2
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecdh_primitive_random:MBEDTLS_ECP_DP_SECP384R1
+
+Context get ECP Group #3
+depends_on:MBEDTLS_ECP_DP_SECP521R1_ENABLED
+ecdh_primitive_random:MBEDTLS_ECP_DP_SECP521R1
+
+Context get ECP Group #4
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecdh_primitive_random:MBEDTLS_ECP_DP_CURVE448
diff --git a/tests/suites/test_suite_ecdh.function b/tests/suites/test_suite_ecdh.function
index cc193da..300916f 100644
--- a/tests/suites/test_suite_ecdh.function
+++ b/tests/suites/test_suite_ecdh.function
@@ -464,3 +464,20 @@
     mbedtls_ecp_keypair_free(&their_key);
 }
 /* END_CASE */
+
+/* BEGIN_CASE */
+void ecdh_context_grp(int id)
+{
+    mbedtls_ecdh_context srv;
+
+    mbedtls_ecdh_init(&srv);
+    TEST_ASSERT(mbedtls_ecdh_setup(&srv, id) == 0);
+
+    /* Test the retrieved group id matches/*/
+    TEST_ASSERT((int) mbedtls_ecdh_get_grp_id(&srv) == id);
+
+exit:
+    mbedtls_ecdh_free(&srv);
+
+}
+/* END_CASE */
diff --git a/tests/suites/test_suite_ecp.data b/tests/suites/test_suite_ecp.data
index 01fdc47..fd63657 100644
--- a/tests/suites/test_suite_ecp.data
+++ b/tests/suites/test_suite_ecp.data
@@ -736,6 +736,261 @@
 depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
 mbedtls_ecp_read_key:MBEDTLS_ECP_DP_CURVE25519:"70076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c6a":0:1
 
+ECP write key: secp256r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":32:0
+
+ECP write key: secp256r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":33:0
+
+ECP write key: secp256r1, output longer by 32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":64:0
+
+ECP write key: secp256r1, output longer by 33
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":65:0
+
+ECP write key: secp256r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":31:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, output_size=1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":1:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, output_size=0
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, top byte = 0, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":32:0
+
+ECP write key: secp256r1, top byte = 0, output_size=31 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":31:0
+
+ECP write key: secp256r1, top byte = 0, output_size=30 (too small)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":30:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp256r1, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":32:0
+
+ECP write key: secp256r1, mostly-0 key, output_size=31 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":31:0
+
+ECP write key: secp256r1, mostly-0 key, output_size=1 (fits)
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":1:0
+
+ECP write key: secp384r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":48:0
+
+ECP write key: secp384r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":49:0
+
+ECP write key: secp384r1, output longer by 48
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":96:0
+
+ECP write key: secp384r1, output longer by 49
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":97:0
+
+ECP write key: secp384r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":47:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp384r1, output_size=1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":1:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: secp384r1, output_size=0
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":0:MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":32:0
+
+ECP write key: Curve25519, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":33:0
+
+ECP write key: Curve25519, output longer by 32
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":64:0
+
+ECP write key: Curve25519, output longer by 33
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":65:0
+
+ECP write key: Curve25519, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, output_size=1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":1:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, output_size=0
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve25519, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":32:0
+
+ECP write key: Curve25519, mostly-0 key, output_size=31
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":56:0
+
+ECP write key: Curve448, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":57:0
+
+ECP write key: Curve448, output longer by 32
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":112:0
+
+ECP write key: Curve448, output longer by 33
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":113:0
+
+ECP write key: Curve448, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, output_size=1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":1:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, output_size=0
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key: Curve448, mostly-0 key, output_size=56
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":56:0
+
+ECP write key: Curve448, mostly-0 key, output_size=55
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":32:0
+
+ECP write key ext: secp256r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":33:0
+
+ECP write key ext: secp256r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, output_size=0
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"f12a1320760270a83cbffd53f6031ef76a5d86c8a204f2c30ca9ebf51f0f0ea7":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, top byte = 0, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":32:0
+
+ECP write key ext: secp256r1, top byte = 0, output_size=31
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, top byte = 0, output_size=30
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"00ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff":30:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":32:0
+
+ECP write key ext: secp256r1, mostly-0 key, output_size=1
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"0000000000000000000000000000000000000000000000000000000000000001":1:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: secp256r1, private key not set
+depends_on:MBEDTLS_ECP_DP_SECP256R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP256R1:"":32:MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+
+ECP write key ext: secp384r1, nominal
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":48:0
+
+ECP write key ext: secp384r1, output longer by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":49:0
+
+ECP write key ext: secp384r1, output short by 1
+depends_on:MBEDTLS_ECP_DP_SECP384R1_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_SECP384R1:"d27335ea71664af244dd14e9fd1260715dfd8a7965571c48d709ee7a7962a156d706a90cbcb5df2986f05feadb9376f1":47:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: Curve25519, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":32:0
+
+ECP write key ext: Curve25519, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":33:0
+
+ECP write key ext: Curve25519, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: Curve25519, output_size=0
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"a046e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449a44":0:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: Curve25519, mostly-0 key, output_size=32
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":32:0
+
+ECP write key ext: Curve25519, mostly-0 key, output_size=31
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"0000000000000000000000000000000000000000000000000000000000000040":31:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: Curve25519, private key not set
+depends_on:MBEDTLS_ECP_DP_CURVE25519_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE25519:"":32:MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+
+ECP write key ext: Curve448, nominal
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":56:0
+
+ECP write key ext: Curve448, output longer by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":57:0
+
+ECP write key ext: Curve448, output short by 1
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE448:"3c262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: Curve448, mostly-0 key, output_size=56
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":56:0
+
+ECP write key ext: Curve448, mostly-0 key, output_size=55
+depends_on:MBEDTLS_ECP_DP_CURVE448_ENABLED
+ecp_write_key_ext:MBEDTLS_ECP_DP_CURVE448:"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080":55:MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL
+
+ECP write key ext: group not set
+ecp_write_key_ext:MBEDTLS_ECP_DP_NONE:"":32:MBEDTLS_ERR_ECP_BAD_INPUT_DATA
+
 ECP mod p192 small (more than 192 bits, less limbs than 2 * 192 bits)
 depends_on:MBEDTLS_ECP_DP_SECP192R1_ENABLED:MBEDTLS_ECP_NIST_OPTIM
 ecp_fast_mod:MBEDTLS_ECP_DP_SECP192R1:"0100000000000103010000000000010201000000000001010100000000000100"
diff --git a/tests/suites/test_suite_ecp.function b/tests/suites/test_suite_ecp.function
index 295fe7f..9b5c86f 100644
--- a/tests/suites/test_suite_ecp.function
+++ b/tests/suites/test_suite_ecp.function
@@ -1204,29 +1204,46 @@
         TEST_EQUAL(mbedtls_mpi_cmp_int(&key.Q.Y, 2), 0);
         TEST_EQUAL(mbedtls_mpi_cmp_int(&key.Q.Z, 3), 0);
 
-        if (canonical) {
+        if (canonical && in_key->len == (key.grp.nbits + 7) / 8) {
             unsigned char buf[MBEDTLS_ECP_MAX_BYTES];
+            size_t length = 0xdeadbeef;
 
-            ret = mbedtls_ecp_write_key(&key, buf, in_key->len);
-            TEST_ASSERT(ret == 0);
+            TEST_EQUAL(mbedtls_ecp_write_key_ext(&key,
+                                                 &length, buf, in_key->len), 0);
+            TEST_MEMORY_COMPARE(in_key->x, in_key->len,
+                                buf, length);
 
+#if defined(MBEDTLS_TEST_DEPRECATED)
+            memset(buf, 0, sizeof(buf));
+            TEST_EQUAL(mbedtls_ecp_write_key(&key, buf, in_key->len), 0);
             TEST_MEMORY_COMPARE(in_key->x, in_key->len,
                                 buf, in_key->len);
+#endif /* MBEDTLS_TEST_DEPRECATED */
         } else {
             unsigned char export1[MBEDTLS_ECP_MAX_BYTES];
             unsigned char export2[MBEDTLS_ECP_MAX_BYTES];
 
-            ret = mbedtls_ecp_write_key(&key, export1, in_key->len);
-            TEST_ASSERT(ret == 0);
+            size_t length1 = 0xdeadbeef;
+            TEST_EQUAL(mbedtls_ecp_write_key_ext(&key, &length1,
+                                                 export1, sizeof(export1)), 0);
+            TEST_EQUAL(mbedtls_ecp_read_key(grp_id, &key2, export1, length1),
+                       expected);
+            size_t length2 = 0xdeadbeef;
+            TEST_EQUAL(mbedtls_ecp_write_key_ext(&key2, &length2,
+                                                 export2, sizeof(export2)), 0);
+            TEST_MEMORY_COMPARE(export1, length1,
+                                export2, length2);
 
-            ret = mbedtls_ecp_read_key(grp_id, &key2, export1, in_key->len);
-            TEST_ASSERT(ret == expected);
-
-            ret = mbedtls_ecp_write_key(&key2, export2, in_key->len);
-            TEST_ASSERT(ret == 0);
-
+#if defined(MBEDTLS_TEST_DEPRECATED)
+            memset(export1, 0, sizeof(export1));
+            memset(export2, 0, sizeof(export2));
+            TEST_EQUAL(mbedtls_ecp_write_key(&key, export1, in_key->len), 0);
+            TEST_EQUAL(mbedtls_ecp_read_key(grp_id, &key2, export1, in_key->len),
+                       expected);
+            TEST_EQUAL(mbedtls_ecp_write_key(&key2, export2, in_key->len), 0);
             TEST_MEMORY_COMPARE(export1, in_key->len,
                                 export2, in_key->len);
+#endif /* MBEDTLS_TEST_DEPRECATED */
         }
     }
 
@@ -1236,6 +1253,102 @@
 }
 /* END_CASE */
 
+/* BEGIN_CASE depends_on:MBEDTLS_TEST_DEPRECATED */
+void ecp_write_key(int grp_id, data_t *in_key,
+                   int exported_size, int expected_ret)
+{
+    mbedtls_ecp_keypair key;
+    mbedtls_ecp_keypair_init(&key);
+    unsigned char *exported = NULL;
+
+    TEST_EQUAL(mbedtls_ecp_read_key(grp_id, &key, in_key->x, in_key->len), 0);
+
+    TEST_CALLOC(exported, exported_size);
+    TEST_EQUAL(mbedtls_ecp_write_key(&key, exported, exported_size),
+               expected_ret);
+
+    if (expected_ret == 0) {
+        size_t length = (key.grp.nbits + 7) / 8;
+        const unsigned char *key_start = NULL;
+        const unsigned char *zeros_start = NULL;
+        switch (mbedtls_ecp_get_type(&key.grp)) {
+            case MBEDTLS_ECP_TYPE_SHORT_WEIERSTRASS:
+                if ((size_t) exported_size < length) {
+                    length = exported_size;
+                }
+                key_start = exported + exported_size - length;
+                zeros_start = exported;
+                break;
+            case MBEDTLS_ECP_TYPE_MONTGOMERY:
+                TEST_LE_U(length, exported_size);
+                key_start = exported;
+                zeros_start = exported + length;
+                break;
+            default:
+                TEST_FAIL("Unknown ECP curve type");
+                break;
+        }
+
+        if (length < in_key->len) {
+            /* Shorter output (only possible with Weierstrass keys) */
+            for (size_t i = 0; i < in_key->len - length; i++) {
+                mbedtls_test_set_step(i);
+                TEST_EQUAL(in_key->x[i], 0);
+            }
+            TEST_MEMORY_COMPARE(in_key->x + in_key->len - length, length,
+                                key_start, length);
+        } else {
+            TEST_MEMORY_COMPARE(in_key->x, in_key->len,
+                                key_start, length);
+            for (size_t i = 0; i < exported_size - length; i++) {
+                mbedtls_test_set_step(i);
+                TEST_EQUAL(zeros_start[i], 0);
+            }
+        }
+    }
+
+exit:
+    mbedtls_ecp_keypair_free(&key);
+    mbedtls_free(exported);
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void ecp_write_key_ext(int grp_id, data_t *in_key,
+                       int exported_size, int expected_ret)
+{
+    mbedtls_ecp_keypair key;
+    mbedtls_ecp_keypair_init(&key);
+    unsigned char *exported = NULL;
+
+    if (in_key->len != 0) {
+        TEST_EQUAL(mbedtls_ecp_read_key(grp_id, &key, in_key->x, in_key->len), 0);
+    } else if (grp_id != MBEDTLS_ECP_DP_NONE) {
+        TEST_EQUAL(mbedtls_ecp_group_load(&key.grp, grp_id), 0);
+    }
+
+    TEST_CALLOC(exported, exported_size);
+    size_t olen = 0xdeadbeef;
+    TEST_EQUAL(mbedtls_ecp_write_key_ext(&key, &olen, exported, exported_size),
+               expected_ret);
+
+    if (expected_ret == 0) {
+        TEST_EQUAL(olen, (key.grp.nbits + 7) / 8);
+        TEST_LE_U(olen, MBEDTLS_ECP_MAX_BYTES);
+        TEST_MEMORY_COMPARE(in_key->x, in_key->len,
+                            exported, olen);
+    } else {
+        /* Robustness check: even in the error case, insist that olen is less
+         * than the buffer size. */
+        TEST_LE_U(olen, exported_size);
+    }
+
+exit:
+    mbedtls_ecp_keypair_free(&key);
+    mbedtls_free(exported);
+}
+/* END_CASE */
+
 /* BEGIN_CASE depends_on:MBEDTLS_TEST_HOOKS:MBEDTLS_ECP_MONTGOMERY_ENABLED:MBEDTLS_ECP_LIGHT */
 void genkey_mx_known_answer(int bits, data_t *seed, data_t *expected)
 {
diff --git a/tests/suites/test_suite_pk.function b/tests/suites/test_suite_pk.function
index 180cf76..3d75ad0 100644
--- a/tests/suites/test_suite_pk.function
+++ b/tests/suites/test_suite_pk.function
@@ -434,7 +434,7 @@
  */
 mbedtls_svc_key_id_t pk_psa_genkey_ecc(void)
 {
-    mbedtls_svc_key_id_t key;
+    mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     const psa_key_type_t type =
         PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1);
@@ -456,7 +456,7 @@
  */
 mbedtls_svc_key_id_t pk_psa_genkey_rsa(void)
 {
-    mbedtls_svc_key_id_t key;
+    mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
     const psa_key_type_t type = PSA_KEY_TYPE_RSA_KEY_PAIR;
     const size_t bits = 1024;
@@ -482,7 +482,7 @@
 void pk_psa_utils(int key_is_rsa)
 {
     mbedtls_pk_context pk, pk2;
-    mbedtls_svc_key_id_t key;
+    mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 
     const char * const name = "Opaque";
@@ -836,6 +836,7 @@
     mbedtls_pk_context pub, prv, alt;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_svc_key_id_t opaque_key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t opaque_key_attr = PSA_KEY_ATTRIBUTES_INIT;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_pk_init(&pub);
@@ -873,9 +874,13 @@
 #endif
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     if (mbedtls_pk_get_type(&prv) == MBEDTLS_PK_ECKEY) {
-        TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&prv, &opaque_key_id,
-                                             PSA_ALG_ANY_HASH,
-                                             PSA_KEY_USAGE_EXPORT, 0), 0);
+        /* Turn the prv PK context into an opaque one.*/
+        TEST_EQUAL(mbedtls_pk_get_psa_attributes(&prv, PSA_KEY_USAGE_SIGN_HASH,
+                                                 &opaque_key_attr), 0);
+        TEST_EQUAL(mbedtls_pk_import_into_psa(&prv, &opaque_key_attr, &opaque_key_id), 0);
+        mbedtls_pk_free(&prv);
+        mbedtls_pk_init(&prv);
+        TEST_EQUAL(mbedtls_pk_setup_opaque(&prv, opaque_key_id), 0);
         TEST_EQUAL(mbedtls_pk_check_pair(&pub, &prv, mbedtls_test_rnd_std_rand,
                                          NULL), ret);
     }
@@ -1395,7 +1400,8 @@
     mbedtls_mpi N, P, Q, E;
     mbedtls_rsa_context *rsa;
     mbedtls_pk_context pk;
-    mbedtls_svc_key_id_t key_id;
+    mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
     size_t olen;
 
     mbedtls_pk_init(&pk);
@@ -1422,10 +1428,11 @@
     TEST_EQUAL(mbedtls_rsa_complete(rsa), 0);
 
     /* Turn PK context into an opaque one. */
-    TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&pk, &key_id,
-                                         PSA_ALG_RSA_PKCS1V15_CRYPT,
-                                         PSA_KEY_USAGE_DECRYPT,
-                                         PSA_ALG_NONE), 0);
+    TEST_EQUAL(mbedtls_pk_get_psa_attributes(&pk, PSA_KEY_USAGE_DECRYPT, &key_attr), 0);
+    TEST_EQUAL(mbedtls_pk_import_into_psa(&pk, &key_attr, &key_id), 0);
+    mbedtls_pk_free(&pk);
+    mbedtls_pk_init(&pk);
+    TEST_EQUAL(mbedtls_pk_setup_opaque(&pk, key_id), 0);
 
     TEST_EQUAL(mbedtls_pk_get_bitlen(&pk), mod);
 
@@ -1635,10 +1642,9 @@
     unsigned char pkey_legacy[200];
     unsigned char pkey_psa[200];
     unsigned char *pkey_legacy_start, *pkey_psa_start;
-    psa_algorithm_t alg_psa;
     size_t sig_len, klen_legacy, klen_psa;
     int ret;
-    mbedtls_svc_key_id_t key_id;
+    mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
 
     /*
@@ -1660,7 +1666,6 @@
         TEST_ASSERT(mbedtls_rsa_gen_key(mbedtls_pk_rsa(pk),
                                         mbedtls_test_rnd_std_rand, NULL,
                                         curve_or_keybits, 3) == 0);
-        alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(PSA_ALG_SHA_256);
     } else
 #endif /* MBEDTLS_RSA_C && MBEDTLS_GENPRIME */
 #if defined(MBEDTLS_PK_CAN_ECDSA_SIGN)
@@ -1671,8 +1676,6 @@
         TEST_ASSERT(mbedtls_pk_setup(&pk,
                                      mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)) == 0);
         TEST_ASSERT(pk_genkey(&pk, grpid) == 0);
-
-        alg_psa = PSA_ALG_ECDSA(PSA_ALG_SHA_256);
     } else
 #endif /* MBEDTLS_PK_CAN_ECDSA_SIGN */
     {
@@ -1699,9 +1702,11 @@
 #endif /* MBEDTLS_PK_WRITE_C */
 
     /* Turn PK context into an opaque one. */
-    TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&pk, &key_id, alg_psa,
-                                          PSA_KEY_USAGE_SIGN_HASH,
-                                          PSA_ALG_NONE) == 0);
+    TEST_EQUAL(mbedtls_pk_get_psa_attributes(&pk, PSA_KEY_USAGE_SIGN_HASH, &attributes), 0);
+    TEST_EQUAL(mbedtls_pk_import_into_psa(&pk, &attributes, &key_id), 0);
+    mbedtls_pk_free(&pk);
+    mbedtls_pk_init(&pk);
+    TEST_EQUAL(mbedtls_pk_setup_opaque(&pk, key_id), 0);
 
     PSA_ASSERT(psa_get_key_attributes(key_id, &attributes));
     TEST_EQUAL(psa_get_key_type(&attributes), (psa_key_type_t) psa_type);
@@ -1821,13 +1826,13 @@
 {
     mbedtls_pk_context pk;
     size_t sig_len, pkey_len;
-    mbedtls_svc_key_id_t key_id;
+    mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
     unsigned char sig[MBEDTLS_PK_SIGNATURE_MAX_SIZE];
     unsigned char pkey[PSA_EXPORT_PUBLIC_KEY_MAX_SIZE];
     unsigned char *pkey_start;
     unsigned char hash[PSA_HASH_MAX_SIZE];
     psa_algorithm_t psa_md_alg = mbedtls_md_psa_alg_from_type(md_alg);
-    psa_algorithm_t psa_alg;
     size_t hash_len = PSA_HASH_LENGTH(psa_md_alg);
     void const *options = NULL;
     mbedtls_pk_rsassa_pss_options rsassa_pss_options;
@@ -1844,6 +1849,10 @@
                                    mbedtls_test_rnd_std_rand, NULL,
                                    key_bits, 3), 0);
 
+    if (key_pk_type == MBEDTLS_PK_RSASSA_PSS) {
+        mbedtls_rsa_set_padding(mbedtls_pk_rsa(pk), MBEDTLS_RSA_PKCS_V21, MBEDTLS_MD_NONE);
+    }
+
     /* Export underlying public key for re-importing in a legacy context. */
     ret = mbedtls_pk_write_pubkey_der(&pk, pkey, sizeof(pkey));
     TEST_ASSERT(ret >= 0);
@@ -1852,18 +1861,12 @@
     /* mbedtls_pk_write_pubkey_der() writes backwards in the data buffer. */
     pkey_start = pkey + sizeof(pkey) - pkey_len;
 
-    if (key_pk_type == MBEDTLS_PK_RSA) {
-        psa_alg = PSA_ALG_RSA_PKCS1V15_SIGN(psa_md_alg);
-    } else if (key_pk_type == MBEDTLS_PK_RSASSA_PSS) {
-        psa_alg = PSA_ALG_RSA_PSS(psa_md_alg);
-    } else {
-        TEST_ASSUME(!"PK key type not supported in this configuration");
-    }
-
     /* Turn PK context into an opaque one. */
-    TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&pk, &key_id, psa_alg,
-                                         PSA_KEY_USAGE_SIGN_HASH,
-                                         PSA_ALG_NONE), 0);
+    TEST_EQUAL(mbedtls_pk_get_psa_attributes(&pk, PSA_KEY_USAGE_SIGN_HASH, &key_attr), 0);
+    TEST_EQUAL(mbedtls_pk_import_into_psa(&pk, &key_attr, &key_id), 0);
+    mbedtls_pk_free(&pk);
+    mbedtls_pk_init(&pk);
+    TEST_EQUAL(mbedtls_pk_setup_opaque(&pk, key_id), 0);
 
     memset(hash, 0x2a, sizeof(hash));
     memset(sig, 0, sizeof(sig));
diff --git a/tests/suites/test_suite_pkwrite.function b/tests/suites/test_suite_pkwrite.function
index c760090..735c125 100644
--- a/tests/suites/test_suite_pkwrite.function
+++ b/tests/suites/test_suite_pkwrite.function
@@ -75,6 +75,7 @@
     size_t buf_len, check_buf_len;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_svc_key_id_t opaque_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     USE_PSA_INIT();
@@ -117,10 +118,13 @@
     /* Verify that pk_write works also for opaque private keys */
     if (!is_public_key) {
         memset(buf, 0, check_buf_len);
-        TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&key, &opaque_id,
-                                             PSA_ALG_NONE,
-                                             PSA_KEY_USAGE_EXPORT,
-                                             PSA_ALG_NONE), 0);
+        /* Turn the key PK context into an opaque one.
+         * Note: set some practical usage for the key to make get_psa_attributes() happy. */
+        TEST_EQUAL(mbedtls_pk_get_psa_attributes(&key, PSA_KEY_USAGE_SIGN_MESSAGE, &key_attr), 0);
+        TEST_EQUAL(mbedtls_pk_import_into_psa(&key, &key_attr, &opaque_id), 0);
+        mbedtls_pk_free(&key);
+        mbedtls_pk_init(&key);
+        TEST_EQUAL(mbedtls_pk_setup_opaque(&key, opaque_id), 0);
         start_buf = buf;
         buf_len = check_buf_len;
         TEST_EQUAL(pk_write_any_key(&key, &start_buf, &buf_len, is_public_key,
@@ -172,6 +176,7 @@
     size_t pub_key_len = 0;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_svc_key_id_t opaque_key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
 #endif /* MBEDTLS_USE_PSA_CRYPTO */
 
     mbedtls_pk_init(&priv_key);
@@ -194,9 +199,12 @@
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_platform_zeroize(derived_key_raw, derived_key_len);
 
-    TEST_EQUAL(mbedtls_pk_wrap_as_opaque(&priv_key, &opaque_key_id,
-                                         PSA_ALG_NONE, PSA_KEY_USAGE_EXPORT,
-                                         PSA_ALG_NONE), 0);
+    /* Turn the priv_key PK context into an opaque one. */
+    TEST_EQUAL(mbedtls_pk_get_psa_attributes(&priv_key, PSA_KEY_USAGE_SIGN_HASH, &key_attr), 0);
+    TEST_EQUAL(mbedtls_pk_import_into_psa(&priv_key, &key_attr, &opaque_key_id), 0);
+    mbedtls_pk_free(&priv_key);
+    mbedtls_pk_init(&priv_key);
+    TEST_EQUAL(mbedtls_pk_setup_opaque(&priv_key, opaque_key_id), 0);
 
     TEST_EQUAL(mbedtls_pk_write_pubkey_der(&priv_key, derived_key_raw,
                                            derived_key_len), pub_key_len);
diff --git a/tests/suites/test_suite_psa_crypto.data b/tests/suites/test_suite_psa_crypto.data
index 38e4046..c55af03 100644
--- a/tests/suites/test_suite_psa_crypto.data
+++ b/tests/suites/test_suite_psa_crypto.data
@@ -6870,6 +6870,18 @@
 depends_on:PSA_WANT_ALG_PBKDF2_AES_CMAC_PRF_128:PSA_WANT_ALG_CMAC:PSA_WANT_KEY_TYPE_AES:!MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH
 derive_key_type:PSA_ALG_PBKDF2_AES_CMAC_PRF_128:"706173737764":"01":"73616c74":PSA_KEY_TYPE_AES:256:"28e288c6345bb5ecf7ca70274208a3ba0f1148b5868537d5e09d3ee6813b1f52"
 
+PSA key derivation: default params -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:0:"":PSA_SUCCESS:"3cb25f25faacd57a90434f64d0362f2a"
+
+PSA key derivation: params.flags=1 -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:1:"":PSA_ERROR_INVALID_ARGUMENT:""
+
+PSA key derivation: params.data non-empty -> AES-128
+depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256:PSA_WANT_KEY_TYPE_AES
+derive_key_ext:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_AES:128:0:"2a":PSA_ERROR_INVALID_ARGUMENT:""
+
 PSA key derivation: invalid type (0)
 depends_on:PSA_WANT_ALG_HKDF:PSA_WANT_ALG_SHA_256
 derive_key:PSA_ALG_HKDF(PSA_ALG_SHA_256):"0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b":"000102030405060708090a0b0c":"f0f1f2f3f4f5f6f7f8f9":PSA_KEY_TYPE_NONE:128:PSA_ERROR_NOT_SUPPORTED:0
@@ -7419,24 +7431,6 @@
 depends_on:PSA_WANT_ALG_ECDH:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_MONTGOMERY_448
 generate_key:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_MONTGOMERY):448:PSA_KEY_USAGE_EXPORT | PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:PSA_SUCCESS:0
 
-PSA generate key: RSA, default e
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"":PSA_SUCCESS
-
-PSA generate key: RSA, e=3
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"03":PSA_SUCCESS
-
-PSA generate key: RSA, e=65537
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"010001":PSA_SUCCESS
-
-PSA generate key: RSA, e=513
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"0201":PSA_SUCCESS
-
-PSA generate key: RSA, e=1
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"01":PSA_ERROR_INVALID_ARGUMENT
-
-PSA generate key: RSA, e=2
-generate_key_rsa:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:"02":PSA_ERROR_INVALID_ARGUMENT
-
 PSA generate key: FFDH, 2048 bits, good
 depends_on:PSA_WANT_ALG_FFDH:PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE:PSA_WANT_DH_RFC7919_2048
 generate_key:PSA_KEY_TYPE_DH_KEY_PAIR(PSA_DH_FAMILY_RFC7919):2048:PSA_KEY_USAGE_EXPORT:PSA_ALG_FFDH:PSA_SUCCESS:0
@@ -7461,6 +7455,86 @@
 depends_on:PSA_WANT_ALG_FFDH:PSA_WANT_KEY_TYPE_DH_KEY_PAIR_GENERATE
 generate_key:PSA_KEY_TYPE_DH_KEY_PAIR(PSA_DH_FAMILY_RFC7919):1024:PSA_KEY_USAGE_EXPORT:PSA_ALG_FFDH:PSA_ERROR_NOT_SUPPORTED:0
 
+PSA generate key ext: RSA, params.flags=1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:1:"":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, empty e
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=3
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"03":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=3 with leading zeros
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"000003":PSA_SUCCESS
+
+# TODO: currently errors with NOT_SUPPORTED because e is converted to an int
+# and the conversion errors out if there are too many digits without checking
+# for leading zeros. This is a very minor bug. Re-enable this test when this
+# bug is fixed.
+#PSA generate key ext: RSA, e=3 with many leading zeros
+#depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+#generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"0000000000000000000000000000000003":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=513
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"0201":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=65537
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"010001":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=2^31-1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT:INT_MAX>=0x7fffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:PSA_ALG_RSA_PKCS1V15_CRYPT:0:"7fffffff":PSA_SUCCESS
+
+PSA generate key ext: RSA, e=2^31+3 (too large for built-in RSA)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE:INT_MAX<=0x7fffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"80000003":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: RSA, e=2^64+3 (too large for built-in RSA)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_ACCEL_KEY_TYPE_RSA_KEY_PAIR_GENERATE:INT_MAX<=0xffffffffffffffff
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"010000000000000003":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: RSA, e=1
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"01":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, e=0
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"00":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: RSA, e=2
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"02":PSA_ERROR_INVALID_ARGUMENT
+
+# Check that with a driver, we reject a custom e as unsupported,
+# as opposed to silently using the default e.
+# When we add proper driver support, remove this test case and remove
+# the dependency on MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE from
+# the positive/invalid_argument test cases.
+PSA generate key ext: RSA, e=3 with driver and no fallback (not yet supported)
+depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:!MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_GENERATE
+generate_key_ext:PSA_KEY_TYPE_RSA_KEY_PAIR:PSA_VENDOR_RSA_GENERATE_MIN_KEY_BITS:PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT:0:0:"03":PSA_ERROR_NOT_SUPPORTED
+
+PSA generate key ext: ECC, flags=0
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:0:"":PSA_SUCCESS
+
+PSA generate key ext: ECC, flags=1
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:1:"":PSA_ERROR_INVALID_ARGUMENT
+
+PSA generate key ext: ECC, params.data non-empty
+depends_on:PSA_WANT_KEY_TYPE_ECC_KEY_PAIR_GENERATE:PSA_WANT_ECC_SECP_R1_256:PSA_WANT_ALG_ECDH
+generate_key_ext:PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1):256:PSA_KEY_USAGE_DERIVE:PSA_ALG_ECDH:0:"2a":PSA_ERROR_INVALID_ARGUMENT
+
+Key production parameters initializers
+key_production_parameters_init:
+
 PSA import persistent key: raw data, 8 bits
 depends_on:MBEDTLS_PSA_CRYPTO_STORAGE_C
 persistent_key_load_key_from_storage:"2a":PSA_KEY_TYPE_RAW_DATA:8:PSA_KEY_USAGE_EXPORT:0:IMPORT_KEY
diff --git a/tests/suites/test_suite_psa_crypto.function b/tests/suites/test_suite_psa_crypto.function
index 95e7a2d..09874a1 100644
--- a/tests/suites/test_suite_psa_crypto.function
+++ b/tests/suites/test_suite_psa_crypto.function
@@ -1255,6 +1255,84 @@
 }
 #endif /* MBEDTLS_ECP_RESTARTABLE */
 
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+static int rsa_test_e(mbedtls_svc_key_id_t key,
+                      size_t bits,
+                      const data_t *e_arg)
+{
+    uint8_t *exported = NULL;
+    size_t exported_size =
+        PSA_EXPORT_KEY_OUTPUT_SIZE(PSA_KEY_TYPE_RSA_PUBLIC_KEY, bits);
+    size_t exported_length = SIZE_MAX;
+    int ok = 0;
+
+    TEST_CALLOC(exported, exported_size);
+    PSA_ASSERT(psa_export_public_key(key,
+                                     exported, exported_size,
+                                     &exported_length));
+    uint8_t *p = exported;
+    uint8_t *end = exported + exported_length;
+    size_t len;
+    /*   RSAPublicKey ::= SEQUENCE {
+     *      modulus            INTEGER,    -- n
+     *      publicExponent     INTEGER  }  -- e
+     */
+    TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
+                                       MBEDTLS_ASN1_SEQUENCE |
+                                       MBEDTLS_ASN1_CONSTRUCTED));
+    TEST_ASSERT(mbedtls_test_asn1_skip_integer(&p, end, bits, bits, 1));
+    TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
+                                       MBEDTLS_ASN1_INTEGER));
+    if (len >= 1 && p[0] == 0) {
+        ++p;
+        --len;
+    }
+    if (e_arg->len == 0) {
+        TEST_EQUAL(len, 3);
+        TEST_EQUAL(p[0], 1);
+        TEST_EQUAL(p[1], 0);
+        TEST_EQUAL(p[2], 1);
+    } else {
+        const uint8_t *expected = e_arg->x;
+        size_t expected_len = e_arg->len;
+        while (expected_len > 0 && *expected == 0) {
+            ++expected;
+            --expected_len;
+        }
+        TEST_MEMORY_COMPARE(p, len, expected, expected_len);
+    }
+    ok = 1;
+
+exit:
+    mbedtls_free(exported);
+    return ok;
+}
+#endif /* PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE */
+
+static int setup_key_production_parameters(
+    psa_key_production_parameters_t **params, size_t *params_data_length,
+    int flags_arg, const data_t *params_data)
+{
+    *params_data_length = params_data->len;
+    /* If there are N bytes of padding at the end of
+     * psa_key_production_parameters_t, then it's enough to allocate
+     * MIN(sizeof(psa_key_production_parameters_t),
+     *     offsetof(psa_key_production_parameters_t, data) + params_data_length).
+     *
+     * For simplicity, here, we allocate up to N more bytes than necessary.
+     * In practice, the current layout of psa_key_production_parameters_t
+     * makes padding extremely unlikely, so we don't worry about testing
+     * that the library code doesn't try to access these extra N bytes.
+     */
+    *params = mbedtls_calloc(1, sizeof(**params) + *params_data_length);
+    TEST_ASSERT(*params != NULL);
+    (*params)->flags = (uint32_t) flags_arg;
+    memcpy((*params)->data, params_data->x, params_data->len);
+    return 1;
+exit:
+    return 0;
+}
+
 /* END_HEADER */
 
 /* BEGIN_DEPENDENCIES
@@ -9255,6 +9333,81 @@
 /* END_CASE */
 
 /* BEGIN_CASE */
+void derive_key_ext(int alg_arg,
+                    data_t *key_data,
+                    data_t *input1,
+                    data_t *input2,
+                    int key_type_arg, int bits_arg,
+                    int flags_arg,
+                    data_t *params_data,
+                    psa_status_t expected_status,
+                    data_t *expected_export)
+{
+    mbedtls_svc_key_id_t base_key = MBEDTLS_SVC_KEY_ID_INIT;
+    mbedtls_svc_key_id_t derived_key = MBEDTLS_SVC_KEY_ID_INIT;
+    const psa_algorithm_t alg = alg_arg;
+    const psa_key_type_t key_type = key_type_arg;
+    const size_t bits = bits_arg;
+    psa_key_production_parameters_t *params = NULL;
+    size_t params_data_length = 0;
+    psa_key_derivation_operation_t operation = PSA_KEY_DERIVATION_OPERATION_INIT;
+    const size_t export_buffer_size =
+        PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, bits);
+    uint8_t *export_buffer = NULL;
+    psa_key_attributes_t base_attributes = PSA_KEY_ATTRIBUTES_INIT;
+    psa_key_attributes_t derived_attributes = PSA_KEY_ATTRIBUTES_INIT;
+    size_t export_length;
+
+    TEST_CALLOC(export_buffer, export_buffer_size);
+    PSA_ASSERT(psa_crypto_init());
+
+    psa_set_key_usage_flags(&base_attributes, PSA_KEY_USAGE_DERIVE);
+    psa_set_key_algorithm(&base_attributes, alg);
+    psa_set_key_type(&base_attributes, PSA_KEY_TYPE_DERIVE);
+    PSA_ASSERT(psa_import_key(&base_attributes, key_data->x, key_data->len,
+                              &base_key));
+
+    if (mbedtls_test_psa_setup_key_derivation_wrap(
+            &operation, base_key, alg,
+            input1->x, input1->len,
+            input2->x, input2->len,
+            PSA_KEY_DERIVATION_UNLIMITED_CAPACITY) == 0) {
+        goto exit;
+    }
+
+    psa_set_key_usage_flags(&derived_attributes, PSA_KEY_USAGE_EXPORT);
+    psa_set_key_algorithm(&derived_attributes, 0);
+    psa_set_key_type(&derived_attributes, key_type);
+    psa_set_key_bits(&derived_attributes, bits);
+    if (!setup_key_production_parameters(&params, &params_data_length,
+                                         flags_arg, params_data)) {
+        goto exit;
+    }
+
+    TEST_EQUAL(psa_key_derivation_output_key_ext(&derived_attributes, &operation,
+                                                 params, params_data_length,
+                                                 &derived_key),
+               expected_status);
+
+    if (expected_status == PSA_SUCCESS) {
+        PSA_ASSERT(psa_export_key(derived_key,
+                                  export_buffer, export_buffer_size,
+                                  &export_length));
+        TEST_MEMORY_COMPARE(export_buffer, export_length,
+                            expected_export->x, expected_export->len);
+    }
+
+exit:
+    mbedtls_free(export_buffer);
+    mbedtls_free(params);
+    psa_key_derivation_abort(&operation);
+    psa_destroy_key(base_key);
+    psa_destroy_key(derived_key);
+    PSA_DONE();
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
 void derive_key(int alg_arg,
                 data_t *key_data, data_t *input1, data_t *input2,
                 int type_arg, int bits_arg,
@@ -9687,71 +9840,57 @@
 }
 /* END_CASE */
 
-/* BEGIN_CASE depends_on:PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE:PSA_WANT_ALG_RSA_PKCS1V15_CRYPT:PSA_WANT_ALG_RSA_PKCS1V15_SIGN */
-void generate_key_rsa(int bits_arg,
-                      data_t *e_arg,
+/* BEGIN_CASE */
+void generate_key_ext(int type_arg,
+                      int bits_arg,
+                      int usage_arg,
+                      int alg_arg,
+                      int flags_arg,
+                      data_t *params_data,
                       int expected_status_arg)
 {
     mbedtls_svc_key_id_t key = MBEDTLS_SVC_KEY_ID_INIT;
-    psa_key_type_t type = PSA_KEY_TYPE_RSA_KEY_PAIR;
+    psa_key_type_t type = type_arg;
+    psa_key_usage_t usage = usage_arg;
     size_t bits = bits_arg;
-    psa_key_usage_t usage = PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT;
-    psa_algorithm_t alg = PSA_ALG_RSA_PKCS1V15_SIGN_RAW;
+    psa_algorithm_t alg = alg_arg;
     psa_status_t expected_status = expected_status_arg;
     psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
-    uint8_t *exported = NULL;
-    size_t exported_size =
-        PSA_EXPORT_KEY_OUTPUT_SIZE(PSA_KEY_TYPE_RSA_PUBLIC_KEY, bits);
-    size_t exported_length = SIZE_MAX;
-    uint8_t *e_read_buffer = NULL;
-    int is_default_public_exponent = 0;
-    size_t e_read_size = PSA_KEY_DOMAIN_PARAMETERS_SIZE(type, bits);
-    size_t e_read_length = SIZE_MAX;
-
-    if (e_arg->len == 0 ||
-        (e_arg->len == 3 &&
-         e_arg->x[0] == 1 && e_arg->x[1] == 0 && e_arg->x[2] == 1)) {
-        is_default_public_exponent = 1;
-        e_read_size = 0;
-    }
-    TEST_CALLOC(e_read_buffer, e_read_size);
-    TEST_CALLOC(exported, exported_size);
+    psa_key_production_parameters_t *params = NULL;
+    size_t params_data_length = 0;
+    psa_key_attributes_t got_attributes = PSA_KEY_ATTRIBUTES_INIT;
 
     PSA_ASSERT(psa_crypto_init());
 
     psa_set_key_usage_flags(&attributes, usage);
     psa_set_key_algorithm(&attributes, alg);
-    PSA_ASSERT(psa_set_key_domain_parameters(&attributes, type,
-                                             e_arg->x, e_arg->len));
+    psa_set_key_type(&attributes, type);
     psa_set_key_bits(&attributes, bits);
 
+    if (!setup_key_production_parameters(&params, &params_data_length,
+                                         flags_arg, params_data)) {
+        goto exit;
+    }
+
     /* Generate a key */
-    TEST_EQUAL(psa_generate_key(&attributes, &key), expected_status);
+    psa_status_t status = psa_generate_key_ext(&attributes,
+                                               params, params_data_length,
+                                               &key);
+
+    TEST_EQUAL(status, expected_status);
     if (expected_status != PSA_SUCCESS) {
         goto exit;
     }
 
     /* Test the key information */
-    PSA_ASSERT(psa_get_key_attributes(key, &attributes));
-    TEST_EQUAL(psa_get_key_type(&attributes), type);
-    TEST_EQUAL(psa_get_key_bits(&attributes), bits);
-    psa_status_t status = psa_get_key_domain_parameters(&attributes,
-                                                        e_read_buffer, e_read_size,
-                                                        &e_read_length);
+    PSA_ASSERT(psa_get_key_attributes(key, &got_attributes));
+    TEST_EQUAL(psa_get_key_type(&got_attributes), type);
+    TEST_EQUAL(psa_get_key_bits(&got_attributes), bits);
 
-
-#if (defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_IMPORT) && \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_KEY_PAIR_EXPORT)) || \
-    defined(MBEDTLS_PSA_BUILTIN_KEY_TYPE_RSA_PUBLIC_KEY)
-    if (is_default_public_exponent) {
-        TEST_EQUAL(e_read_length, 0);
-    } else {
-        TEST_EQUAL(status, PSA_SUCCESS);
-        TEST_MEMORY_COMPARE(e_read_buffer, e_read_length, e_arg->x, e_arg->len);
+#if defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR_GENERATE)
+    if (type == PSA_KEY_TYPE_RSA_KEY_PAIR) {
+        TEST_ASSERT(rsa_test_e(key, bits, params_data));
     }
-#else
-    (void) is_default_public_exponent;
-    TEST_EQUAL(status, PSA_ERROR_NOT_SUPPORTED);
 #endif
 
     /* Do something with the key according to its type and permitted usage. */
@@ -9759,49 +9898,27 @@
         goto exit;
     }
 
-    /* Export the key and check the public exponent. */
-    PSA_ASSERT(psa_export_public_key(key,
-                                     exported, exported_size,
-                                     &exported_length));
-    {
-        uint8_t *p = exported;
-        uint8_t *end = exported + exported_length;
-        size_t len;
-        /*   RSAPublicKey ::= SEQUENCE {
-         *      modulus            INTEGER,    -- n
-         *      publicExponent     INTEGER  }  -- e
-         */
-        TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
-                                           MBEDTLS_ASN1_SEQUENCE |
-                                           MBEDTLS_ASN1_CONSTRUCTED));
-        TEST_ASSERT(mbedtls_test_asn1_skip_integer(&p, end, bits, bits, 1));
-        TEST_EQUAL(0, mbedtls_asn1_get_tag(&p, end, &len,
-                                           MBEDTLS_ASN1_INTEGER));
-        if (len >= 1 && p[0] == 0) {
-            ++p;
-            --len;
-        }
-        if (e_arg->len == 0) {
-            TEST_EQUAL(len, 3);
-            TEST_EQUAL(p[0], 1);
-            TEST_EQUAL(p[1], 0);
-            TEST_EQUAL(p[2], 1);
-        } else {
-            TEST_MEMORY_COMPARE(p, len, e_arg->x, e_arg->len);
-        }
-    }
-
 exit:
     /*
-     * Key attributes may have been returned by psa_get_key_attributes() or
-     * set by psa_set_key_domain_parameters() thus reset them as required.
+     * Key attributes may have been returned by psa_get_key_attributes()
+     * thus reset them as required.
      */
-    psa_reset_key_attributes(&attributes);
-
+    psa_reset_key_attributes(&got_attributes);
+    mbedtls_free(params);
     psa_destroy_key(key);
     PSA_DONE();
-    mbedtls_free(e_read_buffer);
-    mbedtls_free(exported);
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void key_production_parameters_init()
+{
+    psa_key_production_parameters_t init = PSA_KEY_PRODUCTION_PARAMETERS_INIT;
+    psa_key_production_parameters_t zero;
+    memset(&zero, 0, sizeof(zero));
+
+    TEST_EQUAL(init.flags, 0);
+    TEST_EQUAL(zero.flags, 0);
 }
 /* END_CASE */
 
diff --git a/tests/suites/test_suite_psa_crypto_persistent_key.function b/tests/suites/test_suite_psa_crypto_persistent_key.function
index c4e4c7d..ea8cb6b 100644
--- a/tests/suites/test_suite_psa_crypto_persistent_key.function
+++ b/tests/suites/test_suite_psa_crypto_persistent_key.function
@@ -61,7 +61,7 @@
 
     TEST_CALLOC(file_data, file_data_length);
     psa_format_key_data_for_storage(key_data->x, key_data->len,
-                                    &attributes.core,
+                                    &attributes,
                                     file_data);
 
     TEST_MEMORY_COMPARE(expected_file_data->x, expected_file_data->len,
@@ -90,7 +90,7 @@
 
     status = psa_parse_key_data_from_storage(file_data->x, file_data->len,
                                              &key_data, &key_data_length,
-                                             &attributes.core);
+                                             &attributes);
 
     TEST_EQUAL(status, expected_status);
     if (status != PSA_SUCCESS) {
diff --git a/tests/suites/test_suite_psa_crypto_se_driver_hal.function b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
index 8e96984..e3681ba 100644
--- a/tests/suites/test_suite_psa_crypto_se_driver_hal.function
+++ b/tests/suites/test_suite_psa_crypto_se_driver_hal.function
@@ -952,7 +952,7 @@
     psa_set_key_slot_number(&attributes, min_slot);
 
     if (PSA_KEY_LIFETIME_IS_VOLATILE(lifetime)) {
-        attributes.core.id = returned_id;
+        attributes.id = returned_id;
     } else {
         psa_set_key_id(&attributes, returned_id);
     }
diff --git a/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function b/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
index 6f28f93..b6d3a34 100644
--- a/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
+++ b/tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function
@@ -359,19 +359,19 @@
 
     if (mock_alloc_return_value == PSA_SUCCESS) {
         TEST_ASSERT(mbedtls_svc_key_id_equal(
-                        mock_import_data.attributes.core.id, id));
+                        mock_import_data.attributes.id, id));
     } else {
         TEST_ASSERT(MBEDTLS_SVC_KEY_ID_GET_KEY_ID(
-                        mock_import_data.attributes.core.id) == 0);
+                        mock_import_data.attributes.id) == 0);
         TEST_ASSERT(MBEDTLS_SVC_KEY_ID_GET_OWNER_ID(
-                        mock_import_data.attributes.core.id) == 0);
+                        mock_import_data.attributes.id) == 0);
     }
 
-    TEST_ASSERT(mock_import_data.attributes.core.lifetime ==
+    TEST_ASSERT(mock_import_data.attributes.lifetime ==
                 (mock_alloc_return_value == PSA_SUCCESS ? lifetime : 0));
-    TEST_ASSERT(mock_import_data.attributes.core.policy.usage ==
+    TEST_ASSERT(mock_import_data.attributes.policy.usage ==
                 (mock_alloc_return_value == PSA_SUCCESS ? PSA_KEY_USAGE_EXPORT : 0));
-    TEST_ASSERT(mock_import_data.attributes.core.type ==
+    TEST_ASSERT(mock_import_data.attributes.type ==
                 (mock_alloc_return_value == PSA_SUCCESS ? PSA_KEY_TYPE_RAW_DATA : 0));
 
     if (expected_result == PSA_SUCCESS) {
@@ -474,19 +474,19 @@
 
     if (mock_alloc_return_value == PSA_SUCCESS) {
         TEST_ASSERT(mbedtls_svc_key_id_equal(
-                        mock_generate_data.attributes.core.id, id));
+                        mock_generate_data.attributes.id, id));
     } else {
         TEST_ASSERT(MBEDTLS_SVC_KEY_ID_GET_KEY_ID(
-                        mock_generate_data.attributes.core.id) == 0);
+                        mock_generate_data.attributes.id) == 0);
         TEST_ASSERT(MBEDTLS_SVC_KEY_ID_GET_OWNER_ID(
-                        mock_generate_data.attributes.core.id) == 0);
+                        mock_generate_data.attributes.id) == 0);
     }
 
-    TEST_ASSERT(mock_generate_data.attributes.core.lifetime ==
+    TEST_ASSERT(mock_generate_data.attributes.lifetime ==
                 (mock_alloc_return_value == PSA_SUCCESS ? lifetime : 0));
-    TEST_ASSERT(mock_generate_data.attributes.core.policy.usage ==
+    TEST_ASSERT(mock_generate_data.attributes.policy.usage ==
                 (mock_alloc_return_value == PSA_SUCCESS ? PSA_KEY_USAGE_EXPORT : 0));
-    TEST_ASSERT(mock_generate_data.attributes.core.type ==
+    TEST_ASSERT(mock_generate_data.attributes.type ==
                 (mock_alloc_return_value == PSA_SUCCESS ? PSA_KEY_TYPE_RAW_DATA : 0));
 
     if (expected_result == PSA_SUCCESS) {
diff --git a/tests/suites/test_suite_psa_crypto_slot_management.function b/tests/suites/test_suite_psa_crypto_slot_management.function
index 8564d35..94f26f6 100644
--- a/tests/suites/test_suite_psa_crypto_slot_management.function
+++ b/tests/suites/test_suite_psa_crypto_slot_management.function
@@ -458,7 +458,7 @@
          * PSA key attributes APIs thus accessing to the attributes
          * directly.
          */
-        attributes.core.id = id;
+        attributes.id = id;
     } else {
         psa_set_key_id(&attributes, id);
     }
@@ -992,7 +992,7 @@
      * Check that we can now access the persistent key again.
      */
     PSA_ASSERT(psa_get_key_attributes(persistent_key, &attributes));
-    TEST_ASSERT(mbedtls_svc_key_id_equal(attributes.core.id,
+    TEST_ASSERT(mbedtls_svc_key_id_equal(attributes.id,
                                          persistent_key));
 
     /*
diff --git a/tests/suites/test_suite_ssl.data b/tests/suites/test_suite_ssl.data
index 69ccf26..c0c816c 100644
--- a/tests/suites/test_suite_ssl.data
+++ b/tests/suites/test_suite_ssl.data
@@ -3274,14 +3274,17 @@
 TLS 1.3 resume session with ticket
 tls13_resume_session_with_ticket
 
-TLS 1.3 early data, early data accepted
-tls13_early_data:TEST_EARLY_DATA_ACCEPTED
+TLS 1.3 read early data, early data accepted
+tls13_read_early_data:TEST_EARLY_DATA_ACCEPTED
 
-TLS 1.3 early data, server rejects early data
-tls13_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+TLS 1.3 read early data, no early data indication
+tls13_read_early_data:TEST_EARLY_DATA_NO_INDICATION_SENT
 
-TLS 1.3 early data, discard after HRR
-tls13_early_data:TEST_EARLY_DATA_HRR
+TLS 1.3 read early data, server rejects early data
+tls13_read_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+
+TLS 1.3 read early data, discard after HRR
+tls13_read_early_data:TEST_EARLY_DATA_HRR
 
 TLS 1.3 cli, early data status, early data accepted
 tls13_cli_early_data_status:TEST_EARLY_DATA_ACCEPTED
@@ -3294,3 +3297,51 @@
 
 TLS 1.3 cli, early data status, hello retry request
 tls13_cli_early_data_status:TEST_EARLY_DATA_HRR
+
+TLS 1.3 write early data, early data accepted
+tls13_write_early_data:TEST_EARLY_DATA_ACCEPTED
+
+TLS 1.3 write early data, no early data indication
+tls13_write_early_data:TEST_EARLY_DATA_NO_INDICATION_SENT
+
+TLS 1.3 write early data, server rejects early data
+tls13_write_early_data:TEST_EARLY_DATA_SERVER_REJECTS
+
+TLS 1.3 write early data, hello retry request
+tls13_write_early_data:TEST_EARLY_DATA_HRR
+
+TLS 1.3 srv, max early data size, dflt, wsz=96
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:-1:96
+
+TLS 1.3 srv, max early data size, dflt, wsz=128
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:-1:128
+
+TLS 1.3 srv, max early data size, 3, wsz=2
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:3:2
+
+TLS 1.3 srv, max early data size, 3, wsz=3
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:3:3
+
+TLS 1.3 srv, max early data size, 98, wsz=23
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:98:23
+
+TLS 1.3 srv, max early data size, 98, wsz=49
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_ACCEPTED:98:49
+
+TLS 1.3 srv, max early data size, server rejects, dflt, wsz=128
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_SERVER_REJECTS:-1:128
+
+TLS 1.3 srv, max early data size, server rejects, 3, wsz=3
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_SERVER_REJECTS:3:3
+
+TLS 1.3 srv, max early data size, server rejects, 98, wsz=49
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_SERVER_REJECTS:98:49
+
+TLS 1.3 srv, max early data size, HRR, dflt, wsz=128
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_HRR:-1:128
+
+TLS 1.3 srv, max early data size, HRR, 3, wsz=3
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_HRR:3:3
+
+TLS 1.3 srv, max early data size, HRR, 98, wsz=49
+tls13_srv_max_early_data_size:TEST_EARLY_DATA_HRR:97:0
diff --git a/tests/suites/test_suite_ssl.function b/tests/suites/test_suite_ssl.function
index 0e798f4..6e95817 100644
--- a/tests/suites/test_suite_ssl.function
+++ b/tests/suites/test_suite_ssl.function
@@ -28,10 +28,8 @@
     defined(MBEDTLS_ECP_HAVE_SECP256R1) && defined(MBEDTLS_ECP_HAVE_SECP384R1) && \
     defined(MBEDTLS_PK_CAN_ECDSA_VERIFY) && defined(MBEDTLS_SSL_SESSION_TICKETS)
 /*
- * The implementation of the function should be based on
- * mbedtls_ssl_write_early_data() eventually. The current version aims at
- * removing the dependency on mbedtls_ssl_write_early_data() for the
- * development and testing of reading early data.
+ * Test function to write early data for negative tests where
+ * mbedtls_ssl_write_early_data() cannot be used.
  */
 static int write_early_data(mbedtls_ssl_context *ssl,
                             unsigned char *buf, size_t len)
@@ -39,7 +37,7 @@
     int ret = mbedtls_ssl_get_max_out_record_payload(ssl);
 
     TEST_ASSERT(ret > 0);
-    TEST_ASSERT(len <= (size_t) ret);
+    TEST_LE_U(len, (size_t) ret);
 
     ret = mbedtls_ssl_flush_output(ssl);
     TEST_EQUAL(ret, 0);
@@ -1174,6 +1172,8 @@
                                             MBEDTLS_SSL_IS_CLIENT,
                                             MBEDTLS_SSL_TRANSPORT_DATAGRAM,
                                             MBEDTLS_SSL_PRESET_DEFAULT) == 0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
+
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
 
     /* Read previous record numbers */
@@ -2922,6 +2922,7 @@
     mbedtls_ssl_conf_transport(&conf, transport);
     mbedtls_ssl_conf_min_tls_version(&conf, min_tls_version);
     mbedtls_ssl_conf_max_tls_version(&conf, max_tls_version);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == expected_ssl_setup_result);
     TEST_EQUAL(mbedtls_ssl_conf_get_endpoint(
@@ -2963,6 +2964,8 @@
     mbedtls_ssl_init(&ssl);
     MD_OR_USE_PSA_INIT();
 
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
+
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
 
     TEST_ASSERT(ssl.handshake != NULL && ssl.handshake->group_list != NULL);
@@ -2994,6 +2997,7 @@
     mbedtls_ssl_config conf;
     mbedtls_ssl_config_init(&conf);
 
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
     mbedtls_ssl_conf_max_tls_version(&conf, MBEDTLS_SSL_VERSION_TLS1_2);
     mbedtls_ssl_conf_min_tls_version(&conf, MBEDTLS_SSL_VERSION_TLS1_2);
 
@@ -3102,6 +3106,7 @@
                                            MBEDTLS_SSL_TRANSPORT_DATAGRAM,
                                            MBEDTLS_SSL_PRESET_DEFAULT),
                0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_setup(&ssl, &conf), 0);
     TEST_EQUAL(mbedtls_ssl_check_dtls_clihlo_cookie(&ssl, ssl.cli_id,
@@ -3156,6 +3161,7 @@
                                             MBEDTLS_SSL_TRANSPORT_STREAM,
                                             MBEDTLS_SSL_PRESET_DEFAULT)
                 == 0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_ASSERT(mbedtls_ssl_setup(&ssl, &conf) == 0);
 
@@ -3414,6 +3420,7 @@
                                            MBEDTLS_SSL_IS_CLIENT,
                                            MBEDTLS_SSL_TRANSPORT_STREAM,
                                            MBEDTLS_SSL_PRESET_DEFAULT), 0);
+    mbedtls_ssl_conf_rng(&conf, mbedtls_test_random, NULL);
 
     TEST_EQUAL(mbedtls_ssl_setup(&ssl, &conf), 0);
 
@@ -3624,12 +3631,12 @@
 /* END_CASE */
 
 /*
- * The !MBEDTLS_SSL_PROTO_TLS1_2 dependency of tls13_early_data() below is
+ * The !MBEDTLS_SSL_PROTO_TLS1_2 dependency of tls13_read_early_data() below is
  * a temporary workaround to not run the test in Windows-2013 where there is
  * an issue with mbedtls_vsnprintf().
  */
 /* BEGIN_CASE depends_on:!MBEDTLS_SSL_PROTO_TLS1_2:MBEDTLS_SSL_EARLY_DATA:MBEDTLS_SSL_CLI_C:MBEDTLS_SSL_SRV_C:MBEDTLS_DEBUG_C:MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED:MBEDTLS_MD_CAN_SHA256:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_ECP_HAVE_SECP384R1:MBEDTLS_PK_CAN_ECDSA_VERIFY:MBEDTLS_SSL_SESSION_TICKETS */
-void tls13_early_data(int scenario)
+void tls13_read_early_data(int scenario)
 {
     int ret = -1;
     unsigned char buf[64];
@@ -3676,6 +3683,10 @@
         case TEST_EARLY_DATA_ACCEPTED:
             break;
 
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            client_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
         case TEST_EARLY_DATA_SERVER_REJECTS:
             mbedtls_debug_set_threshold(3);
             server_pattern.pattern =
@@ -3723,12 +3734,16 @@
                    &(client_ep.ssl), &(server_ep.ssl),
                    MBEDTLS_SSL_SERVER_HELLO), 0);
 
-    TEST_ASSERT(client_ep.ssl.early_data_status !=
-                MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT);
+    ret = mbedtls_ssl_write_early_data(&(client_ep.ssl),
+                                       (unsigned char *) early_data,
+                                       early_data_len);
 
-    ret = write_early_data(&(client_ep.ssl), (unsigned char *) early_data,
-                           early_data_len);
-    TEST_EQUAL(ret, early_data_len);
+    if (client_ep.ssl.early_data_status !=
+        MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT) {
+        TEST_EQUAL(ret, early_data_len);
+    } else {
+        TEST_EQUAL(ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+    }
 
     ret = mbedtls_test_move_handshake_to_state(
         &(server_ep.ssl), &(client_ep.ssl),
@@ -3743,12 +3758,20 @@
             TEST_MEMORY_COMPARE(buf, early_data_len, early_data, early_data_len);
             break;
 
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            TEST_EQUAL(ret, 0);
+            TEST_EQUAL(server_ep.ssl.handshake->early_data_accepted, 0);
+            break;
+
         case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
         case TEST_EARLY_DATA_HRR:
             TEST_EQUAL(ret, 0);
             TEST_EQUAL(server_ep.ssl.handshake->early_data_accepted, 0);
             TEST_EQUAL(server_pattern.counter, 1);
             break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
     }
 
     TEST_EQUAL(mbedtls_test_move_handshake_to_state(
@@ -3869,6 +3892,11 @@
                         (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
         }
 
+        if (client_ep.ssl.state != MBEDTLS_SSL_HANDSHAKE_OVER) {
+            TEST_EQUAL(mbedtls_ssl_get_early_data_status(&(client_ep.ssl)),
+                       MBEDTLS_ERR_SSL_BAD_INPUT_DATA);
+        }
+
         switch (client_ep.ssl.state) {
             case MBEDTLS_SSL_CLIENT_HELLO:
                 switch (scenario) {
@@ -3880,7 +3908,7 @@
                         break;
 
                     case TEST_EARLY_DATA_HRR:
-                        if (client_ep.ssl.handshake->hello_retry_request_count == 0) {
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
                             TEST_EQUAL(client_ep.ssl.early_data_status,
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_UNKNOWN);
                         } else {
@@ -3888,6 +3916,9 @@
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         }
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3905,7 +3936,7 @@
                         break;
 
                     case TEST_EARLY_DATA_HRR:
-                        if (client_ep.ssl.handshake->hello_retry_request_count == 0) {
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
                             TEST_EQUAL(client_ep.ssl.early_data_status,
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_CAN_WRITE);
                         } else {
@@ -3913,6 +3944,9 @@
                                        MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         }
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3933,6 +3967,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3953,6 +3990,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3979,6 +4019,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -3999,12 +4042,14 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
             case MBEDTLS_SSL_CLIENT_CCS_AFTER_CLIENT_HELLO:
-                TEST_ASSERT(scenario != TEST_EARLY_DATA_NO_INDICATION_SENT);
                 switch (scenario) {
                     case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
                     case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
@@ -4012,6 +4057,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_SENT);
                         break;
+
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
                 }
                 break;
 
@@ -4022,7 +4070,6 @@
                 break;
 
             case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
-                TEST_ASSERT(scenario != TEST_EARLY_DATA_ACCEPTED);
                 switch (scenario) {
                     case TEST_EARLY_DATA_NO_INDICATION_SENT:
                         TEST_EQUAL(client_ep.ssl.early_data_status,
@@ -4034,6 +4081,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
                 }
                 break;
 #endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
@@ -4057,6 +4107,9 @@
                         TEST_EQUAL(client_ep.ssl.early_data_status,
                                    MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
                         break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
                 }
                 break;
 
@@ -4065,8 +4118,30 @@
         }
     } while (client_ep.ssl.state != MBEDTLS_SSL_HANDSHAKE_OVER);
 
+    ret = mbedtls_ssl_get_early_data_status(&(client_ep.ssl));
+    switch (scenario) {
+        case TEST_EARLY_DATA_ACCEPTED:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_ACCEPTED);
+            break;
+
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT);
+            break;
+
+        case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+        case TEST_EARLY_DATA_HRR:
+            TEST_EQUAL(ret, MBEDTLS_SSL_EARLY_DATA_STATUS_REJECTED);
+            break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
+    }
+
+    ret = mbedtls_ssl_get_early_data_status(&(server_ep.ssl));
+    TEST_EQUAL(ret, MBEDTLS_ERR_SSL_BAD_INPUT_DATA);
+
 #if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
-    TEST_EQUAL(client_ep.ssl.handshake->ccs_count, 1);
+    TEST_EQUAL(client_ep.ssl.handshake->ccs_sent, 1);
 #endif
 
 exit:
@@ -4078,3 +4153,608 @@
     PSA_DONE();
 }
 /* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SSL_EARLY_DATA:MBEDTLS_SSL_CLI_C:MBEDTLS_SSL_SRV_C:MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED:MBEDTLS_MD_CAN_SHA256:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_ECP_HAVE_SECP384R1:MBEDTLS_PK_CAN_ECDSA_VERIFY:MBEDTLS_SSL_SESSION_TICKETS */
+void tls13_write_early_data(int scenario)
+{
+    int ret = -1;
+    mbedtls_test_ssl_endpoint client_ep, server_ep;
+    mbedtls_test_handshake_test_options client_options;
+    mbedtls_test_handshake_test_options server_options;
+    mbedtls_ssl_session saved_session;
+    uint16_t group_list[3] = {
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_NONE
+    };
+    int beyond_first_hello = 0;
+
+    mbedtls_platform_zeroize(&client_ep, sizeof(client_ep));
+    mbedtls_platform_zeroize(&server_ep, sizeof(server_ep));
+    mbedtls_test_init_handshake_options(&client_options);
+    mbedtls_test_init_handshake_options(&server_options);
+    mbedtls_ssl_session_init(&saved_session);
+
+    PSA_INIT();
+
+    /*
+     * Run first handshake to get a ticket from the server.
+     */
+    client_options.pk_alg = MBEDTLS_PK_ECDSA;
+    client_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    server_options.pk_alg = MBEDTLS_PK_ECDSA;
+    server_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    if (scenario == TEST_EARLY_DATA_HRR) {
+        client_options.group_list = group_list;
+        server_options.group_list = group_list;
+    }
+
+    ret = mbedtls_test_get_tls13_ticket(&client_options, &server_options,
+                                        &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Prepare for handshake with the ticket.
+     */
+    switch (scenario) {
+        case TEST_EARLY_DATA_ACCEPTED:
+            break;
+
+        case TEST_EARLY_DATA_NO_INDICATION_SENT:
+            client_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
+        case TEST_EARLY_DATA_SERVER_REJECTS:
+            server_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            break;
+
+        case TEST_EARLY_DATA_HRR:
+            /*
+             * Remove server support for the group negotiated in
+             * mbedtls_test_get_tls13_ticket() forcing a HelloRetryRequest.
+             */
+            server_options.group_list = group_list + 1;
+            break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
+    }
+
+    ret = mbedtls_test_ssl_endpoint_init(&client_ep, MBEDTLS_SSL_IS_CLIENT,
+                                         &client_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    ret = mbedtls_test_ssl_endpoint_init(&server_ep, MBEDTLS_SSL_IS_SERVER,
+                                         &server_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    mbedtls_ssl_conf_session_tickets_cb(&server_ep.conf,
+                                        mbedtls_test_ticket_write,
+                                        mbedtls_test_ticket_parse,
+                                        NULL);
+
+    ret = mbedtls_test_mock_socket_connect(&(client_ep.socket),
+                                           &(server_ep.socket), 1024);
+    TEST_EQUAL(ret, 0);
+
+    ret = mbedtls_ssl_set_session(&(client_ep.ssl), &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Run handshakes going one state further in the handshake sequence at each
+     * loop up to the point where we reach the MBEDTLS_SSL_HANDSHAKE_OVER
+     * state. For each reached handshake state, check the result of the call
+     * to mbedtls_ssl_write_early_data(), make sure we can complete the
+     * handshake successfully and then reset the connection to restart the
+     * handshake from scratch.
+     */
+    do {
+        int client_state = client_ep.ssl.state;
+        int previous_client_state;
+        const char *early_data_string = "This is early data.";
+        const unsigned char *early_data = (const unsigned char *) early_data_string;
+        size_t early_data_len = strlen(early_data_string);
+        int write_early_data_ret, read_early_data_ret;
+        unsigned char read_buf[64];
+
+        write_early_data_ret = mbedtls_ssl_write_early_data(&(client_ep.ssl),
+                                                            early_data,
+                                                            early_data_len);
+
+        if (scenario == TEST_EARLY_DATA_NO_INDICATION_SENT) {
+            TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+            TEST_EQUAL(client_ep.ssl.state, client_state);
+            goto complete_handshake;
+        }
+
+        switch (client_state) {
+            case MBEDTLS_SSL_HELLO_REQUEST: /* Intentional fallthrough */
+            case MBEDTLS_SSL_CLIENT_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
+                            TEST_EQUAL(write_early_data_ret, early_data_len);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        } else {
+                            beyond_first_hello = 1;
+                            TEST_EQUAL(write_early_data_ret,
+                                       MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_CLIENT_HELLO);
+                        }
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_SERVER_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        if (!client_ep.ssl.handshake->hello_retry_request_flag) {
+                            TEST_EQUAL(write_early_data_ret, early_data_len);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        } else {
+                            TEST_EQUAL(write_early_data_ret,
+                                       MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                            TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        }
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_ENCRYPTED_EXTENSIONS:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_ENCRYPTED_EXTENSIONS);
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_SERVER_FINISHED:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    case TEST_EARLY_DATA_SERVER_REJECTS:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_FINISHED);
+                        break;
+
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_END_OF_EARLY_DATA:
+                TEST_EQUAL(scenario, TEST_EARLY_DATA_ACCEPTED);
+                TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_END_OF_EARLY_DATA);
+                break;
+
+#if defined(MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE)
+            case MBEDTLS_SSL_CLIENT_CCS_AFTER_CLIENT_HELLO:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, early_data_len);
+                        TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_SERVER_HELLO);
+                        break;
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            case MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO:
+                TEST_EQUAL(scenario, TEST_EARLY_DATA_HRR);
+                TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                TEST_EQUAL(client_ep.ssl.state, MBEDTLS_SSL_CLIENT_CCS_BEFORE_2ND_CLIENT_HELLO);
+                break;
+
+            case MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret,
+                                   MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state,
+                                   MBEDTLS_SSL_CLIENT_CCS_AFTER_SERVER_FINISHED);
+                        break;
+                    default:
+                        TEST_FAIL("Unexpected or unknown scenario.");
+                }
+                break;
+#endif /* MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE */
+
+            case MBEDTLS_SSL_CLIENT_CERTIFICATE: /* Intentional fallthrough */
+            case MBEDTLS_SSL_CLIENT_FINISHED: /* Intentional fallthrough */
+            case MBEDTLS_SSL_FLUSH_BUFFERS: /* Intentional fallthrough */
+            case MBEDTLS_SSL_HANDSHAKE_WRAPUP: /* Intentional fallthrough */
+            case MBEDTLS_SSL_HANDSHAKE_OVER:
+                switch (scenario) {
+                    case TEST_EARLY_DATA_ACCEPTED: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+                    case TEST_EARLY_DATA_HRR:
+                        TEST_EQUAL(write_early_data_ret, MBEDTLS_ERR_SSL_CANNOT_WRITE_EARLY_DATA);
+                        TEST_EQUAL(client_ep.ssl.state, client_state);
+                        break;
+                    default:
+                        TEST_FAIL("Unknown scenario.");
+                }
+                break;
+
+            default:
+                TEST_FAIL("Unexpected state.");
+        }
+
+complete_handshake:
+        do {
+            ret = mbedtls_test_move_handshake_to_state(
+                &(server_ep.ssl), &(client_ep.ssl),
+                MBEDTLS_SSL_HANDSHAKE_OVER);
+
+            if (ret == MBEDTLS_ERR_SSL_RECEIVED_EARLY_DATA) {
+                read_early_data_ret = mbedtls_ssl_read_early_data(
+                    &(server_ep.ssl), read_buf, sizeof(read_buf));
+
+                TEST_EQUAL(read_early_data_ret, early_data_len);
+            }
+        } while (ret == MBEDTLS_ERR_SSL_RECEIVED_EARLY_DATA);
+
+        TEST_EQUAL(ret, 0);
+        TEST_EQUAL(mbedtls_test_move_handshake_to_state(
+                       &(client_ep.ssl), &(server_ep.ssl),
+                       MBEDTLS_SSL_HANDSHAKE_OVER), 0);
+
+        mbedtls_test_mock_socket_close(&(client_ep.socket));
+        mbedtls_test_mock_socket_close(&(server_ep.socket));
+
+        ret = mbedtls_ssl_session_reset(&(client_ep.ssl));
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_ssl_set_session(&(client_ep.ssl), &saved_session);
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_ssl_session_reset(&(server_ep.ssl));
+        TEST_EQUAL(ret, 0);
+
+        ret = mbedtls_test_mock_socket_connect(&(client_ep.socket),
+                                               &(server_ep.socket), 1024);
+        TEST_EQUAL(ret, 0);
+
+        previous_client_state = client_state;
+        if (previous_client_state == MBEDTLS_SSL_HANDSHAKE_OVER) {
+            break;
+        }
+
+        /* In case of HRR scenario, once we have been through it, move over
+         * the first ClientHello and ServerHello otherwise we just keep playing
+         * this first part of the handshake with HRR.
+         */
+        if ((scenario == TEST_EARLY_DATA_HRR) && (beyond_first_hello)) {
+            TEST_ASSERT(mbedtls_test_move_handshake_to_state(
+                            &(client_ep.ssl), &(server_ep.ssl),
+                            MBEDTLS_SSL_SERVER_HELLO) == 0);
+            TEST_ASSERT(mbedtls_test_move_handshake_to_state(
+                            &(client_ep.ssl), &(server_ep.ssl),
+                            MBEDTLS_SSL_CLIENT_HELLO) == 0);
+        }
+
+        TEST_EQUAL(mbedtls_test_move_handshake_to_state(
+                       &(client_ep.ssl), &(server_ep.ssl),
+                       previous_client_state), 0);
+
+        /* Progress the handshake from at least one state */
+        while (client_ep.ssl.state == previous_client_state) {
+            ret = mbedtls_ssl_handshake_step(&(client_ep.ssl));
+            TEST_ASSERT((ret == 0) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_READ) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
+            if (client_ep.ssl.state != previous_client_state) {
+                break;
+            }
+            ret = mbedtls_ssl_handshake_step(&(server_ep.ssl));
+            TEST_ASSERT((ret == 0) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_READ) ||
+                        (ret == MBEDTLS_ERR_SSL_WANT_WRITE));
+        }
+    } while (1);
+
+exit:
+    mbedtls_test_ssl_endpoint_free(&client_ep, NULL);
+    mbedtls_test_ssl_endpoint_free(&server_ep, NULL);
+    mbedtls_test_free_handshake_options(&client_options);
+    mbedtls_test_free_handshake_options(&server_options);
+    mbedtls_ssl_session_free(&saved_session);
+    PSA_DONE();
+}
+/* END_CASE */
+
+/*
+ * The !MBEDTLS_SSL_PROTO_TLS1_2 dependency of tls13_early_data() below is
+ * a temporary workaround to not run the test in Windows-2013 where there is
+ * an issue with mbedtls_vsnprintf().
+ */
+/* BEGIN_CASE depends_on:!MBEDTLS_SSL_PROTO_TLS1_2:MBEDTLS_SSL_EARLY_DATA:MBEDTLS_SSL_CLI_C:MBEDTLS_SSL_SRV_C:MBEDTLS_DEBUG_C:MBEDTLS_TEST_AT_LEAST_ONE_TLS1_3_CIPHERSUITE:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED:MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED:MBEDTLS_MD_CAN_SHA256:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_ECP_HAVE_SECP384R1:MBEDTLS_PK_CAN_ECDSA_VERIFY:MBEDTLS_SSL_SESSION_TICKETS */
+void tls13_srv_max_early_data_size(int scenario, int max_early_data_size_arg, int write_size_arg)
+{
+    int ret = -1;
+    mbedtls_test_ssl_endpoint client_ep, server_ep;
+    mbedtls_test_handshake_test_options client_options;
+    mbedtls_test_handshake_test_options server_options;
+    mbedtls_ssl_session saved_session;
+    mbedtls_test_ssl_log_pattern server_pattern = { NULL, 0 };
+    uint16_t group_list[3] = {
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1,
+        MBEDTLS_SSL_IANA_TLS_GROUP_NONE
+    };
+    char pattern[128];
+    unsigned char *buf_write = NULL;
+    uint32_t write_size = (uint32_t) write_size_arg;
+    unsigned char *buf_read = NULL;
+    uint32_t read_size;
+    uint32_t expanded_early_data_chunk_size = 0;
+    uint32_t written_early_data_size = 0;
+    uint32_t max_early_data_size;
+
+    mbedtls_platform_zeroize(&client_ep, sizeof(client_ep));
+    mbedtls_platform_zeroize(&server_ep, sizeof(server_ep));
+    mbedtls_test_init_handshake_options(&client_options);
+    mbedtls_test_init_handshake_options(&server_options);
+    mbedtls_ssl_session_init(&saved_session);
+    PSA_INIT();
+
+    TEST_CALLOC(buf_write, write_size);
+
+    /*
+     * Allocate a smaller buffer for early data reading to exercise the reading
+     * of data in one record in multiple calls.
+     */
+    read_size = (write_size / 2) + 1;
+    TEST_CALLOC(buf_read, read_size);
+
+    /*
+     * Run first handshake to get a ticket from the server.
+     */
+
+    client_options.pk_alg = MBEDTLS_PK_ECDSA;
+    client_options.group_list = group_list;
+    client_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    server_options.pk_alg = MBEDTLS_PK_ECDSA;
+    server_options.group_list = group_list;
+    server_options.early_data = MBEDTLS_SSL_EARLY_DATA_ENABLED;
+    server_options.max_early_data_size = max_early_data_size_arg;
+
+    ret = mbedtls_test_get_tls13_ticket(&client_options, &server_options,
+                                        &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Prepare for handshake with the ticket.
+     */
+    server_options.srv_log_fun = mbedtls_test_ssl_log_analyzer;
+    server_options.srv_log_obj = &server_pattern;
+    server_pattern.pattern = pattern;
+
+    switch (scenario) {
+        case TEST_EARLY_DATA_ACCEPTED:
+            break;
+
+        case TEST_EARLY_DATA_SERVER_REJECTS:
+            server_options.early_data = MBEDTLS_SSL_EARLY_DATA_DISABLED;
+            ret = mbedtls_snprintf(pattern, sizeof(pattern),
+                                   "EarlyData: deprotect and discard app data records.");
+            TEST_ASSERT(ret < (int) sizeof(pattern));
+            mbedtls_debug_set_threshold(3);
+            break;
+
+        case TEST_EARLY_DATA_HRR:
+            /*
+             * Remove server support for the group negotiated in
+             * mbedtls_test_get_tls13_ticket() forcing an HelloRetryRequest.
+             */
+            server_options.group_list = group_list + 1;
+            ret = mbedtls_snprintf(
+                pattern, sizeof(pattern),
+                "EarlyData: Ignore application message before 2nd ClientHello");
+            TEST_ASSERT(ret < (int) sizeof(pattern));
+            mbedtls_debug_set_threshold(3);
+            break;
+
+        default:
+            TEST_FAIL("Unknown scenario.");
+    }
+
+    ret = mbedtls_test_ssl_endpoint_init(&client_ep, MBEDTLS_SSL_IS_CLIENT,
+                                         &client_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    ret = mbedtls_test_ssl_endpoint_init(&server_ep, MBEDTLS_SSL_IS_SERVER,
+                                         &server_options, NULL, NULL, NULL);
+    TEST_EQUAL(ret, 0);
+
+    mbedtls_ssl_conf_session_tickets_cb(&server_ep.conf,
+                                        mbedtls_test_ticket_write,
+                                        mbedtls_test_ticket_parse,
+                                        NULL);
+
+    ret = mbedtls_test_mock_socket_connect(&(client_ep.socket),
+                                           &(server_ep.socket), 1024);
+    TEST_EQUAL(ret, 0);
+
+    max_early_data_size = saved_session.max_early_data_size;
+
+    ret = mbedtls_ssl_set_session(&(client_ep.ssl), &saved_session);
+    TEST_EQUAL(ret, 0);
+
+    /*
+     * Start an handshake based on the ticket up to the point where early data
+     * can be sent from client side. Then send in a loop as much early data as
+     * possible without going over the maximum permitted size for the ticket.
+     * Finally, do a last writting to go past that maximum permitted size and
+     * check that we detect it.
+     */
+    TEST_EQUAL(mbedtls_test_move_handshake_to_state(
+                   &(client_ep.ssl), &(server_ep.ssl),
+                   MBEDTLS_SSL_SERVER_HELLO), 0);
+
+    TEST_ASSERT(client_ep.ssl.early_data_status !=
+                MBEDTLS_SSL_EARLY_DATA_STATUS_NOT_SENT);
+
+    ret = mbedtls_ssl_handshake(&(server_ep.ssl));
+    TEST_EQUAL(ret, MBEDTLS_ERR_SSL_WANT_READ);
+
+    /*
+     * Write and if possible read as much as possible chunks of write_size
+     * bytes data without getting over the max_early_data_size limit.
+     */
+    do {
+        uint32_t read_early_data_size = 0;
+
+        /*
+         * The contents of the early data are not very important, write a
+         * pattern that varies byte-by-byte and is different for every chunk of
+         * early data.
+         */
+        if ((written_early_data_size + write_size) > max_early_data_size) {
+            break;
+        }
+
+        /*
+         * If the server rejected early data, base the determination of when
+         * to stop the loop on the expanded size (padding and encryption
+         * expansion) of early data on server side and the number of early data
+         * received so far by the server (multiple of the expanded size).
+         */
+        if ((expanded_early_data_chunk_size != 0) &&
+            ((server_ep.ssl.total_early_data_size +
+              expanded_early_data_chunk_size) > max_early_data_size)) {
+            break;
+        }
+
+        for (size_t i = 0; i < write_size; i++) {
+            buf_write[i] = (unsigned char) (written_early_data_size + i);
+        }
+
+        ret = write_early_data(&(client_ep.ssl), buf_write, write_size);
+        TEST_EQUAL(ret, write_size);
+        written_early_data_size += write_size;
+
+        switch (scenario) {
+            case TEST_EARLY_DATA_ACCEPTED:
+                while (read_early_data_size < write_size) {
+                    ret = mbedtls_ssl_handshake(&(server_ep.ssl));
+                    TEST_EQUAL(ret, MBEDTLS_ERR_SSL_RECEIVED_EARLY_DATA);
+
+                    ret = mbedtls_ssl_read_early_data(&(server_ep.ssl),
+                                                      buf_read, read_size);
+                    TEST_ASSERT(ret > 0);
+
+                    TEST_MEMORY_COMPARE(buf_read, ret,
+                                        buf_write + read_early_data_size, ret);
+                    read_early_data_size += ret;
+
+                    TEST_EQUAL(server_ep.ssl.total_early_data_size,
+                               written_early_data_size);
+                }
+                break;
+
+            case TEST_EARLY_DATA_SERVER_REJECTS: /* Intentional fallthrough */
+            case TEST_EARLY_DATA_HRR:
+                ret = mbedtls_ssl_handshake(&(server_ep.ssl));
+                /*
+                 * In this write loop we try to always stay below the
+                 * max_early_data_size limit but if max_early_data_size is very
+                 * small we may exceed the max_early_data_size limit on the
+                 * first write. In TEST_EARLY_DATA_SERVER_REJECTS/
+                 * TEST_EARLY_DATA_HRR scenario, this is for sure the case if
+                 * max_early_data_size is smaller than the smallest possible
+                 * inner content/protected record. Take into account this
+                 * possibility here but only for max_early_data_size values
+                 * that are close to write_size. Below, '1' is for the inner
+                 * type byte and '16' is to take into account some AEAD
+                 * expansion (tag, ...).
+                 */
+                if (ret == MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) {
+                    if (scenario == TEST_EARLY_DATA_SERVER_REJECTS) {
+                        TEST_LE_U(max_early_data_size,
+                                  write_size + 1 +
+                                  MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY);
+                    } else {
+                        TEST_LE_U(max_early_data_size,
+                                  write_size + 1 + 16 +
+                                  MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY);
+                    }
+                    goto exit;
+                }
+
+                TEST_ASSERT(ret == MBEDTLS_ERR_SSL_WANT_READ);
+
+                TEST_EQUAL(server_pattern.counter, 1);
+                server_pattern.counter = 0;
+                if (expanded_early_data_chunk_size == 0) {
+                    expanded_early_data_chunk_size = server_ep.ssl.total_early_data_size;
+                }
+                break;
+        }
+        TEST_LE_U(server_ep.ssl.total_early_data_size, max_early_data_size);
+    } while (1);
+
+    mbedtls_debug_set_threshold(3);
+    ret = write_early_data(&(client_ep.ssl), buf_write, write_size);
+    TEST_EQUAL(ret, write_size);
+
+    ret = mbedtls_snprintf(pattern, sizeof(pattern),
+                           "EarlyData: Too much early data received");
+    TEST_ASSERT(ret < (int) sizeof(pattern));
+
+    ret = mbedtls_ssl_handshake(&(server_ep.ssl));
+    TEST_EQUAL(ret, MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE);
+    TEST_EQUAL(server_pattern.counter, 1);
+
+exit:
+    mbedtls_test_ssl_endpoint_free(&client_ep, NULL);
+    mbedtls_test_ssl_endpoint_free(&server_ep, NULL);
+    mbedtls_test_free_handshake_options(&client_options);
+    mbedtls_test_free_handshake_options(&server_options);
+    mbedtls_ssl_session_free(&saved_session);
+    mbedtls_free(buf_write);
+    mbedtls_free(buf_read);
+    mbedtls_debug_set_threshold(0);
+    PSA_DONE();
+}
+/* END_CASE */
diff --git a/tests/suites/test_suite_x509parse.data b/tests/suites/test_suite_x509parse.data
index 2b0920d..754660c 100644
--- a/tests/suites/test_suite_x509parse.data
+++ b/tests/suites/test_suite_x509parse.data
@@ -3155,6 +3155,18 @@
 depends_on:MBEDTLS_PK_CAN_ECDSA_SOME:MBEDTLS_ECP_HAVE_SECP256R1:MBEDTLS_MD_CAN_SHA256
 x509parse_crt_file:"data_files/parse_input/server5.crt":0
 
+X509 File parse & read the ca_istrue field (Not Set)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_MD_CAN_SHA1
+mbedtls_x509_get_ca_istrue:"data_files/parse_input/server1.crt":0
+
+X509 File parse & read the ca_istrue field (Set)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_MD_CAN_SHA1
+mbedtls_x509_get_ca_istrue:"data_files/test-ca.crt":1
+
+X509 File parse & read the ca_istrue field (Legacy Certificate)
+depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C:MBEDTLS_HAVE_TIME_DATE:MBEDTLS_MD_CAN_SHA1:MBEDTLS_MD_CAN_SHA256
+mbedtls_x509_get_ca_istrue:"data_files/server1-v1.crt":MBEDTLS_ERR_X509_INVALID_EXTENSIONS
+
 X509 Get time (UTC no issues)
 depends_on:MBEDTLS_X509_USE_C
 x509_get_time:MBEDTLS_ASN1_UTC_TIME:"500101000000Z":0:1950:1:1:0:0:0
diff --git a/tests/suites/test_suite_x509parse.function b/tests/suites/test_suite_x509parse.function
index 66477e0..f3ae0f4 100644
--- a/tests/suites/test_suite_x509parse.function
+++ b/tests/suites/test_suite_x509parse.function
@@ -1083,6 +1083,21 @@
 }
 /* END_CASE */
 
+/* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_PARSE_C:MBEDTLS_FS_IO */
+void mbedtls_x509_get_ca_istrue(char *crt_file, int result)
+{
+    mbedtls_x509_crt   crt;
+    mbedtls_x509_crt_init(&crt);
+    USE_PSA_INIT();
+
+    TEST_EQUAL(mbedtls_x509_crt_parse_file(&crt, crt_file), 0);
+    TEST_EQUAL(mbedtls_x509_crt_get_ca_istrue(&crt), result);
+exit:
+    mbedtls_x509_crt_free(&crt);
+    USE_PSA_DONE();
+}
+/* END_CASE */
+
 /* BEGIN_CASE depends_on:MBEDTLS_X509_CRT_PARSE_C */
 void x509parse_crt(data_t *buf, char *result_str, int result)
 {
diff --git a/tests/suites/test_suite_x509write.function b/tests/suites/test_suite_x509write.function
index 3d84c72..1db7e1c 100644
--- a/tests/suites/test_suite_x509write.function
+++ b/tests/suites/test_suite_x509write.function
@@ -284,7 +284,7 @@
 {
     mbedtls_pk_context key;
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
-    psa_algorithm_t md_alg_psa, alg_psa;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
     mbedtls_x509write_csr req;
     unsigned char buf[4096];
     int ret;
@@ -297,24 +297,16 @@
 
     memset(&rnd_info, 0x2a, sizeof(mbedtls_test_rnd_pseudo_info));
 
-    md_alg_psa = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) md_type);
-    TEST_ASSERT(md_alg_psa != MBEDTLS_MD_NONE);
-
     mbedtls_pk_init(&key);
     TEST_ASSERT(mbedtls_pk_parse_keyfile(&key, key_file, NULL,
                                          mbedtls_test_rnd_std_rand, NULL) == 0);
 
-    if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_ECKEY) {
-        alg_psa = PSA_ALG_ECDSA(md_alg_psa);
-    } else if (mbedtls_pk_get_type(&key) == MBEDTLS_PK_RSA) {
-        alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(md_alg_psa);
-    } else {
-        TEST_ASSUME(!"PK key type not supported in this configuration");
-    }
-
-    TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&key, &key_id, alg_psa,
-                                          PSA_KEY_USAGE_SIGN_HASH,
-                                          PSA_ALG_NONE) == 0);
+    /* Turn the PK context into an opaque one. */
+    TEST_EQUAL(mbedtls_pk_get_psa_attributes(&key, PSA_KEY_USAGE_SIGN_HASH, &key_attr), 0);
+    TEST_EQUAL(mbedtls_pk_import_into_psa(&key, &key_attr, &key_id), 0);
+    mbedtls_pk_free(&key);
+    mbedtls_pk_init(&key);
+    TEST_EQUAL(mbedtls_pk_setup_opaque(&key, key_id), 0);
 
     mbedtls_x509write_csr_set_md_alg(&req, md_type);
     mbedtls_x509write_csr_set_key(&req, &key);
@@ -373,6 +365,7 @@
     mbedtls_test_rnd_pseudo_info rnd_info;
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
     mbedtls_svc_key_id_t key_id = MBEDTLS_SVC_KEY_ID_INIT;
+    psa_key_attributes_t key_attr = PSA_KEY_ATTRIBUTES_INIT;
 #endif
     mbedtls_pk_type_t issuer_key_type;
     mbedtls_x509_san_list san_ip;
@@ -451,24 +444,14 @@
 #endif
 
 #if defined(MBEDTLS_USE_PSA_CRYPTO)
-    /* For Opaque PK contexts, wrap key as an Opaque RSA context. */
+    /* Turn the issuer PK context into an opaque one. */
     if (pk_wrap == 2) {
-        psa_algorithm_t alg_psa, md_alg_psa;
-
-        md_alg_psa = mbedtls_md_psa_alg_from_type((mbedtls_md_type_t) md_type);
-        TEST_ASSERT(md_alg_psa != MBEDTLS_MD_NONE);
-
-        if (mbedtls_pk_get_type(&issuer_key) == MBEDTLS_PK_ECKEY) {
-            alg_psa = PSA_ALG_ECDSA(md_alg_psa);
-        } else if (mbedtls_pk_get_type(&issuer_key) == MBEDTLS_PK_RSA) {
-            alg_psa = PSA_ALG_RSA_PKCS1V15_SIGN(md_alg_psa);
-        } else {
-            TEST_ASSUME(!"PK key type not supported in this configuration");
-        }
-
-        TEST_ASSERT(mbedtls_pk_wrap_as_opaque(&issuer_key, &key_id, alg_psa,
-                                              PSA_KEY_USAGE_SIGN_HASH,
-                                              PSA_ALG_NONE) == 0);
+        TEST_EQUAL(mbedtls_pk_get_psa_attributes(&issuer_key, PSA_KEY_USAGE_SIGN_HASH,
+                                                 &key_attr), 0);
+        TEST_EQUAL(mbedtls_pk_import_into_psa(&issuer_key, &key_attr, &key_id), 0);
+        mbedtls_pk_free(&issuer_key);
+        mbedtls_pk_init(&issuer_key);
+        TEST_EQUAL(mbedtls_pk_setup_opaque(&issuer_key, key_id), 0);
     }
 #endif /* MBEDTLS_USE_PSA_CRYPTO */