diff --git a/include/psa/crypto_builtin_composites.h b/include/psa/crypto_builtin_composites.h
index 1d11b00..b05660f 100644
--- a/include/psa/crypto_builtin_composites.h
+++ b/include/psa/crypto_builtin_composites.h
@@ -32,6 +32,7 @@
 
 #ifndef PSA_CRYPTO_BUILTIN_COMPOSITES_H
 #define PSA_CRYPTO_BUILTIN_COMPOSITES_H
+#include "mbedtls/private_access.h"
 
 #include <psa/crypto_driver_common.h>
 
@@ -47,11 +48,11 @@
 typedef struct
 {
     /** The HMAC algorithm in use */
-    psa_algorithm_t alg;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
     /** The hash context. */
     struct psa_hash_operation_s hash_ctx;
     /** The HMAC part of the context. */
-    uint8_t opad[PSA_HMAC_MAX_HASH_BLOCK_SIZE];
+    uint8_t MBEDTLS_PRIVATE(opad)[PSA_HMAC_MAX_HASH_BLOCK_SIZE];
 } mbedtls_psa_hmac_operation_t;
 
 #define MBEDTLS_PSA_HMAC_OPERATION_INIT {0, PSA_HASH_OPERATION_INIT, {0}}
@@ -61,17 +62,17 @@
 
 typedef struct
 {
-    psa_algorithm_t alg;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
     union
     {
-        unsigned dummy; /* Make the union non-empty even with no supported algorithms. */
+        unsigned MBEDTLS_PRIVATE(dummy); /* Make the union non-empty even with no supported algorithms. */
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HMAC) || defined(PSA_CRYPTO_DRIVER_TEST)
-        mbedtls_psa_hmac_operation_t hmac;
+        mbedtls_psa_hmac_operation_t MBEDTLS_PRIVATE(hmac);
 #endif /* MBEDTLS_PSA_BUILTIN_ALG_HMAC */
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_CMAC) || defined(PSA_CRYPTO_DRIVER_TEST)
-        mbedtls_cipher_context_t cmac;
+        mbedtls_cipher_context_t MBEDTLS_PRIVATE(cmac);
 #endif /* MBEDTLS_PSA_BUILTIN_ALG_CMAC */
-    } ctx;
+    } MBEDTLS_PRIVATE(ctx);
 } mbedtls_psa_mac_operation_t;
 
 #define MBEDTLS_PSA_MAC_OPERATION_INIT {0, {0}}
diff --git a/include/psa/crypto_builtin_primitives.h b/include/psa/crypto_builtin_primitives.h
index 75801a1..674c7d0 100644
--- a/include/psa/crypto_builtin_primitives.h
+++ b/include/psa/crypto_builtin_primitives.h
@@ -32,6 +32,7 @@
 
 #ifndef PSA_CRYPTO_BUILTIN_PRIMITIVES_H
 #define PSA_CRYPTO_BUILTIN_PRIMITIVES_H
+#include "mbedtls/private_access.h"
 
 #include <psa/crypto_driver_common.h>
 
@@ -61,32 +62,32 @@
 
 typedef struct
 {
-    psa_algorithm_t alg;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
     union
     {
-        unsigned dummy; /* Make the union non-empty even with no supported algorithms. */
+        unsigned MBEDTLS_PRIVATE(dummy); /* Make the union non-empty even with no supported algorithms. */
 #if defined(MBEDTLS_MD2_C)
-        mbedtls_md2_context md2;
+        mbedtls_md2_context MBEDTLS_PRIVATE(md2);
 #endif
 #if defined(MBEDTLS_MD4_C)
-        mbedtls_md4_context md4;
+        mbedtls_md4_context MBEDTLS_PRIVATE(md4);
 #endif
 #if defined(MBEDTLS_MD5_C)
-        mbedtls_md5_context md5;
+        mbedtls_md5_context MBEDTLS_PRIVATE(md5);
 #endif
 #if defined(MBEDTLS_RIPEMD160_C)
-        mbedtls_ripemd160_context ripemd160;
+        mbedtls_ripemd160_context MBEDTLS_PRIVATE(ripemd160);
 #endif
 #if defined(MBEDTLS_SHA1_C)
-        mbedtls_sha1_context sha1;
+        mbedtls_sha1_context MBEDTLS_PRIVATE(sha1);
 #endif
 #if defined(MBEDTLS_SHA256_C)
-        mbedtls_sha256_context sha256;
+        mbedtls_sha256_context MBEDTLS_PRIVATE(sha256);
 #endif
 #if defined(MBEDTLS_SHA512_C)
-        mbedtls_sha512_context sha512;
+        mbedtls_sha512_context MBEDTLS_PRIVATE(sha512);
 #endif
-    } ctx;
+    } MBEDTLS_PRIVATE(ctx);
 } mbedtls_psa_hash_operation_t;
 
 #define MBEDTLS_PSA_HASH_OPERATION_INIT {0, {0}}
@@ -110,10 +111,10 @@
 
 typedef struct {
     /* Context structure for the Mbed TLS cipher implementation. */
-    psa_algorithm_t alg;
-    uint8_t iv_length;
-    uint8_t block_length;
-    mbedtls_cipher_context_t cipher;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
+    uint8_t MBEDTLS_PRIVATE(iv_length);
+    uint8_t MBEDTLS_PRIVATE(block_length);
+    mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher);
 } mbedtls_psa_cipher_operation_t;
 
 #define MBEDTLS_PSA_CIPHER_OPERATION_INIT {0, 0, 0, {0}}
diff --git a/include/psa/crypto_extra.h b/include/psa/crypto_extra.h
index a7b4ab5..3611c41 100644
--- a/include/psa/crypto_extra.h
+++ b/include/psa/crypto_extra.h
@@ -27,6 +27,7 @@
 
 #ifndef PSA_CRYPTO_EXTRA_H
 #define PSA_CRYPTO_EXTRA_H
+#include "mbedtls/private_access.h"
 
 #include "mbedtls/platform_util.h"
 
@@ -71,7 +72,7 @@
     psa_key_attributes_t *attributes,
     psa_algorithm_t alg2)
 {
-    attributes->core.policy.alg2 = alg2;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2) = alg2;
 }
 
 /** Retrieve the enrollment algorithm policy from key attributes.
@@ -83,7 +84,7 @@
 static inline psa_algorithm_t psa_get_key_enrollment_algorithm(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.policy.alg2 );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg2) );
 }
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@@ -141,8 +142,8 @@
     psa_key_attributes_t *attributes,
     psa_key_slot_number_t slot_number )
 {
-    attributes->core.flags |= MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
-    attributes->slot_number = slot_number;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) |= MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
+    attributes->MBEDTLS_PRIVATE(slot_number) = slot_number;
 }
 
 /** Remove the slot number attribute from a key attribute structure.
@@ -154,7 +155,7 @@
 static inline void psa_clear_key_slot_number(
     psa_key_attributes_t *attributes )
 {
-    attributes->core.flags &= ~MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(flags) &= ~MBEDTLS_PSA_KA_FLAG_HAS_SLOT_NUMBER;
 }
 
 /** Register a key that is already present in a secure element.
@@ -226,26 +227,26 @@
 typedef struct mbedtls_psa_stats_s
 {
     /** Number of slots containing key material for a volatile key. */
-    size_t volatile_slots;
+    size_t MBEDTLS_PRIVATE(volatile_slots);
     /** Number of slots containing key material for a key which is in
      * internal persistent storage. */
-    size_t persistent_slots;
+    size_t MBEDTLS_PRIVATE(persistent_slots);
     /** Number of slots containing a reference to a key in a
      * secure element. */
-    size_t external_slots;
+    size_t MBEDTLS_PRIVATE(external_slots);
     /** Number of slots which are occupied, but do not contain
      * key material yet. */
-    size_t half_filled_slots;
+    size_t MBEDTLS_PRIVATE(half_filled_slots);
     /** Number of slots that contain cache data. */
-    size_t cache_slots;
+    size_t MBEDTLS_PRIVATE(cache_slots);
     /** Number of slots that are not used for anything. */
-    size_t empty_slots;
+    size_t MBEDTLS_PRIVATE(empty_slots);
     /** Number of slots that are locked. */
-    size_t locked_slots;
+    size_t MBEDTLS_PRIVATE(locked_slots);
     /** Largest key id value among open keys in internal persistent storage. */
-    psa_key_id_t max_open_internal_key_id;
+    psa_key_id_t MBEDTLS_PRIVATE(max_open_internal_key_id);
     /** Largest key id value among open keys in secure elements. */
-    psa_key_id_t max_open_external_key_id;
+    psa_key_id_t MBEDTLS_PRIVATE(max_open_external_key_id);
 } mbedtls_psa_stats_t;
 
 /** \brief Get statistics about
diff --git a/include/psa/crypto_se_driver.h b/include/psa/crypto_se_driver.h
index 1dc8f9b..91a6d0b 100644
--- a/include/psa/crypto_se_driver.h
+++ b/include/psa/crypto_se_driver.h
@@ -33,6 +33,7 @@
  */
 #ifndef PSA_CRYPTO_SE_DRIVER_H
 #define PSA_CRYPTO_SE_DRIVER_H
+#include "mbedtls/private_access.h"
 
 #include "crypto_driver_common.h"
 
@@ -97,21 +98,21 @@
      * - psa_destroy_key() causes a call to
      *   psa_drv_se_key_management_t::p_destroy.
      */
-    const void *const persistent_data;
+    const void *const MBEDTLS_PRIVATE(persistent_data);
 
     /** The size of \c persistent_data in bytes.
      *
      * This is always equal to the value of the `persistent_data_size` field
      * of the ::psa_drv_se_t structure when the driver is registered.
      */
-    const size_t persistent_data_size;
+    const size_t MBEDTLS_PRIVATE(persistent_data_size);
 
     /** Driver transient data.
      *
      * The core initializes this value to 0 and does not read or modify it
      * afterwards. The driver may store whatever it wants in this field.
      */
-    uintptr_t transient_data;
+    uintptr_t MBEDTLS_PRIVATE(transient_data);
 } psa_drv_se_context_t;
 
 /** \brief A driver initialization function.
@@ -323,28 +324,28 @@
     /**The size in bytes of the hardware-specific secure element MAC context
      * structure
     */
-    size_t                    context_size;
+    size_t                    MBEDTLS_PRIVATE(context_size);
     /** Function that performs a MAC setup operation
      */
-    psa_drv_se_mac_setup_t          p_setup;
+    psa_drv_se_mac_setup_t          MBEDTLS_PRIVATE(p_setup);
     /** Function that performs a MAC update operation
      */
-    psa_drv_se_mac_update_t         p_update;
+    psa_drv_se_mac_update_t         MBEDTLS_PRIVATE(p_update);
     /** Function that completes a MAC operation
      */
-    psa_drv_se_mac_finish_t         p_finish;
+    psa_drv_se_mac_finish_t         MBEDTLS_PRIVATE(p_finish);
     /** Function that completes a MAC operation with a verify check
      */
-    psa_drv_se_mac_finish_verify_t  p_finish_verify;
+    psa_drv_se_mac_finish_verify_t  MBEDTLS_PRIVATE(p_finish_verify);
     /** Function that aborts a previoustly started MAC operation
      */
-    psa_drv_se_mac_abort_t          p_abort;
+    psa_drv_se_mac_abort_t          MBEDTLS_PRIVATE(p_abort);
     /** Function that performs a MAC operation in one call
      */
-    psa_drv_se_mac_generate_t       p_mac;
+    psa_drv_se_mac_generate_t       MBEDTLS_PRIVATE(p_mac);
     /** Function that performs a MAC and verify operation in one call
      */
-    psa_drv_se_mac_verify_t         p_mac_verify;
+    psa_drv_se_mac_verify_t         MBEDTLS_PRIVATE(p_mac_verify);
 } psa_drv_se_mac_t;
 /**@}*/
 
@@ -510,22 +511,22 @@
     /** The size in bytes of the hardware-specific secure element cipher
      * context structure
      */
-    size_t               context_size;
+    size_t               MBEDTLS_PRIVATE(context_size);
     /** Function that performs a cipher setup operation */
-    psa_drv_se_cipher_setup_t  p_setup;
+    psa_drv_se_cipher_setup_t  MBEDTLS_PRIVATE(p_setup);
     /** Function that sets a cipher IV (if necessary) */
-    psa_drv_se_cipher_set_iv_t p_set_iv;
+    psa_drv_se_cipher_set_iv_t MBEDTLS_PRIVATE(p_set_iv);
     /** Function that performs a cipher update operation */
-    psa_drv_se_cipher_update_t p_update;
+    psa_drv_se_cipher_update_t MBEDTLS_PRIVATE(p_update);
     /** Function that completes a cipher operation */
-    psa_drv_se_cipher_finish_t p_finish;
+    psa_drv_se_cipher_finish_t MBEDTLS_PRIVATE(p_finish);
     /** Function that aborts a cipher operation */
-    psa_drv_se_cipher_abort_t  p_abort;
+    psa_drv_se_cipher_abort_t  MBEDTLS_PRIVATE(p_abort);
     /** Function that performs ECB mode for a cipher operation
      * (Danger: ECB mode should not be used directly by clients of the PSA
      * Crypto Client API)
      */
-    psa_drv_se_cipher_ecb_t    p_ecb;
+    psa_drv_se_cipher_ecb_t    MBEDTLS_PRIVATE(p_ecb);
 } psa_drv_se_cipher_t;
 
 /**@}*/
@@ -681,13 +682,13 @@
  */
 typedef struct {
     /** Function that performs an asymmetric sign operation */
-    psa_drv_se_asymmetric_sign_t    p_sign;
+    psa_drv_se_asymmetric_sign_t    MBEDTLS_PRIVATE(p_sign);
     /** Function that performs an asymmetric verify operation */
-    psa_drv_se_asymmetric_verify_t  p_verify;
+    psa_drv_se_asymmetric_verify_t  MBEDTLS_PRIVATE(p_verify);
     /** Function that performs an asymmetric encrypt operation */
-    psa_drv_se_asymmetric_encrypt_t p_encrypt;
+    psa_drv_se_asymmetric_encrypt_t MBEDTLS_PRIVATE(p_encrypt);
     /** Function that performs an asymmetric decrypt operation */
-    psa_drv_se_asymmetric_decrypt_t p_decrypt;
+    psa_drv_se_asymmetric_decrypt_t MBEDTLS_PRIVATE(p_decrypt);
 } psa_drv_se_asymmetric_t;
 
 /**@}*/
@@ -798,9 +799,9 @@
  */
 typedef struct {
     /** Function that performs the AEAD encrypt operation */
-    psa_drv_se_aead_encrypt_t p_encrypt;
+    psa_drv_se_aead_encrypt_t MBEDTLS_PRIVATE(p_encrypt);
     /** Function that performs the AEAD decrypt operation */
-    psa_drv_se_aead_decrypt_t p_decrypt;
+    psa_drv_se_aead_decrypt_t MBEDTLS_PRIVATE(p_decrypt);
 } psa_drv_se_aead_t;
 /**@}*/
 
@@ -1120,19 +1121,19 @@
  */
 typedef struct {
     /** Function that allocates a slot for a key. */
-    psa_drv_se_allocate_key_t   p_allocate;
+    psa_drv_se_allocate_key_t   MBEDTLS_PRIVATE(p_allocate);
     /** Function that checks the validity of a slot for a key. */
-    psa_drv_se_validate_slot_number_t p_validate_slot_number;
+    psa_drv_se_validate_slot_number_t MBEDTLS_PRIVATE(p_validate_slot_number);
     /** Function that performs a key import operation */
-    psa_drv_se_import_key_t     p_import;
+    psa_drv_se_import_key_t     MBEDTLS_PRIVATE(p_import);
     /** Function that performs a generation */
-    psa_drv_se_generate_key_t   p_generate;
+    psa_drv_se_generate_key_t   MBEDTLS_PRIVATE(p_generate);
     /** Function that performs a key destroy operation */
-    psa_drv_se_destroy_key_t    p_destroy;
+    psa_drv_se_destroy_key_t    MBEDTLS_PRIVATE(p_destroy);
     /** Function that performs a key export operation */
-    psa_drv_se_export_key_t     p_export;
+    psa_drv_se_export_key_t     MBEDTLS_PRIVATE(p_export);
     /** Function that performs a public key export operation */
-    psa_drv_se_export_key_t     p_export_public;
+    psa_drv_se_export_key_t     MBEDTLS_PRIVATE(p_export_public);
 } psa_drv_se_key_management_t;
 
 /**@}*/
@@ -1263,16 +1264,16 @@
  */
 typedef struct {
     /** The driver-specific size of the key derivation context */
-    size_t                           context_size;
+    size_t                           MBEDTLS_PRIVATE(context_size);
     /** Function that performs a key derivation setup */
-    psa_drv_se_key_derivation_setup_t      p_setup;
+    psa_drv_se_key_derivation_setup_t      MBEDTLS_PRIVATE(p_setup);
     /** Function that sets key derivation collateral */
-    psa_drv_se_key_derivation_collateral_t p_collateral;
+    psa_drv_se_key_derivation_collateral_t MBEDTLS_PRIVATE(p_collateral);
     /** Function that performs a final key derivation step */
-    psa_drv_se_key_derivation_derive_t     p_derive;
+    psa_drv_se_key_derivation_derive_t     MBEDTLS_PRIVATE(p_derive);
     /** Function that perforsm a final key derivation or agreement and
      * exports the key */
-    psa_drv_se_key_derivation_export_t     p_export;
+    psa_drv_se_key_derivation_export_t     MBEDTLS_PRIVATE(p_export);
 } psa_drv_se_key_derivation_t;
 
 /**@}*/
@@ -1293,7 +1294,7 @@
      * a different version of this specification.
      * Use #PSA_DRV_SE_HAL_VERSION.
      */
-    uint32_t hal_version;
+    uint32_t MBEDTLS_PRIVATE(hal_version);
 
     /** The size of the driver's persistent data in bytes.
      *
@@ -1303,7 +1304,7 @@
      * for more information about why and how a driver can use
      * persistent data.
      */
-    size_t persistent_data_size;
+    size_t MBEDTLS_PRIVATE(persistent_data_size);
 
     /** The driver initialization function.
      *
@@ -1315,14 +1316,14 @@
      * If this field is \c NULL, it is equivalent to a function that does
      * nothing and returns #PSA_SUCCESS.
      */
-    psa_drv_se_init_t p_init;
+    psa_drv_se_init_t MBEDTLS_PRIVATE(p_init);
 
-    const psa_drv_se_key_management_t *key_management;
-    const psa_drv_se_mac_t *mac;
-    const psa_drv_se_cipher_t *cipher;
-    const psa_drv_se_aead_t *aead;
-    const psa_drv_se_asymmetric_t *asymmetric;
-    const psa_drv_se_key_derivation_t *derivation;
+    const psa_drv_se_key_management_t *MBEDTLS_PRIVATE(key_management);
+    const psa_drv_se_mac_t *MBEDTLS_PRIVATE(mac);
+    const psa_drv_se_cipher_t *MBEDTLS_PRIVATE(cipher);
+    const psa_drv_se_aead_t *MBEDTLS_PRIVATE(aead);
+    const psa_drv_se_asymmetric_t *MBEDTLS_PRIVATE(asymmetric);
+    const psa_drv_se_key_derivation_t *MBEDTLS_PRIVATE(derivation);
 } psa_drv_se_t;
 
 /** The current version of the secure element driver HAL.
diff --git a/include/psa/crypto_struct.h b/include/psa/crypto_struct.h
index 47012fd..b07ced8 100644
--- a/include/psa/crypto_struct.h
+++ b/include/psa/crypto_struct.h
@@ -60,6 +60,7 @@
 
 #ifndef PSA_CRYPTO_STRUCT_H
 #define PSA_CRYPTO_STRUCT_H
+#include "mbedtls/private_access.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -88,8 +89,8 @@
      * ID values are auto-generated in psa_driver_wrappers.h.
      * ID value zero means the context is not valid or not assigned to
      * any driver (i.e. the driver context is not active, in use). */
-    unsigned int id;
-    psa_driver_hash_context_t ctx;
+    unsigned int MBEDTLS_PRIVATE(id);
+    psa_driver_hash_context_t MBEDTLS_PRIVATE(ctx);
 };
 
 #define PSA_HASH_OPERATION_INIT {0, {0}}
@@ -107,14 +108,14 @@
      * ID values are auto-generated in psa_crypto_driver_wrappers.h
      * ID value zero means the context is not valid or not assigned to
      * any driver (i.e. none of the driver contexts are active). */
-    unsigned int id;
+    unsigned int MBEDTLS_PRIVATE(id);
 
-    unsigned int iv_required : 1;
-    unsigned int iv_set : 1;
+    unsigned int MBEDTLS_PRIVATE(iv_required) : 1;
+    unsigned int MBEDTLS_PRIVATE(iv_set) : 1;
 
-    uint8_t default_iv_length;
+    uint8_t MBEDTLS_PRIVATE(default_iv_length);
 
-    psa_driver_cipher_context_t ctx;
+    psa_driver_cipher_context_t MBEDTLS_PRIVATE(ctx);
 };
 
 #define PSA_CIPHER_OPERATION_INIT {0, 0, 0, 0, {0}}
@@ -136,10 +137,10 @@
      * ID values are auto-generated in psa_driver_wrappers.h
      * ID value zero means the context is not valid or not assigned to
      * any driver (i.e. none of the driver contexts are active). */
-    unsigned int id;
-    uint8_t mac_size;
-    unsigned int is_sign : 1;
-    psa_driver_mac_context_t ctx;
+    unsigned int MBEDTLS_PRIVATE(id);
+    uint8_t MBEDTLS_PRIVATE(mac_size);
+    unsigned int MBEDTLS_PRIVATE(is_sign) : 1;
+    psa_driver_mac_context_t MBEDTLS_PRIVATE(ctx);
 };
 
 #define PSA_MAC_OPERATION_INIT {0, 0, 0, {0}}
@@ -151,16 +152,16 @@
 
 struct psa_aead_operation_s
 {
-    psa_algorithm_t alg;
-    unsigned int key_set : 1;
-    unsigned int iv_set : 1;
-    uint8_t iv_size;
-    uint8_t block_size;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
+    unsigned int MBEDTLS_PRIVATE(key_set) : 1;
+    unsigned int MBEDTLS_PRIVATE(iv_set) : 1;
+    uint8_t MBEDTLS_PRIVATE(iv_size);
+    uint8_t MBEDTLS_PRIVATE(block_size);
     union
     {
-        unsigned dummy; /* Enable easier initializing of the union. */
-        mbedtls_cipher_context_t cipher;
-    } ctx;
+        unsigned MBEDTLS_PRIVATE(dummy); /* Enable easier initializing of the union. */
+        mbedtls_cipher_context_t MBEDTLS_PRIVATE(cipher);
+    } MBEDTLS_PRIVATE(ctx);
 };
 
 #define PSA_AEAD_OPERATION_INIT {0, 0, 0, 0, 0, {0}}
@@ -173,18 +174,18 @@
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF)
 typedef struct
 {
-    uint8_t *info;
-    size_t info_length;
-    psa_mac_operation_t hmac;
-    uint8_t prk[PSA_HASH_MAX_SIZE];
-    uint8_t output_block[PSA_HASH_MAX_SIZE];
+    uint8_t *MBEDTLS_PRIVATE(info);
+    size_t MBEDTLS_PRIVATE(info_length);
+    psa_mac_operation_t MBEDTLS_PRIVATE(hmac);
+    uint8_t MBEDTLS_PRIVATE(prk)[PSA_HASH_MAX_SIZE];
+    uint8_t MBEDTLS_PRIVATE(output_block)[PSA_HASH_MAX_SIZE];
 #if PSA_HASH_MAX_SIZE > 0xff
 #error "PSA_HASH_MAX_SIZE does not fit in uint8_t"
 #endif
-    uint8_t offset_in_block;
-    uint8_t block_number;
-    unsigned int state : 2;
-    unsigned int info_set : 1;
+    uint8_t MBEDTLS_PRIVATE(offset_in_block);
+    uint8_t MBEDTLS_PRIVATE(block_number);
+    unsigned int MBEDTLS_PRIVATE(state) : 2;
+    unsigned int MBEDTLS_PRIVATE(info_set) : 1;
 } psa_hkdf_key_derivation_t;
 #endif /* MBEDTLS_PSA_BUILTIN_ALG_HKDF */
 
@@ -207,45 +208,45 @@
 
     /* Indicates how many bytes in the current HMAC block have
      * not yet been read by the user. */
-    uint8_t left_in_block;
+    uint8_t MBEDTLS_PRIVATE(left_in_block);
 
     /* The 1-based number of the block. */
-    uint8_t block_number;
+    uint8_t MBEDTLS_PRIVATE(block_number);
 
-    psa_tls12_prf_key_derivation_state_t state;
+    psa_tls12_prf_key_derivation_state_t MBEDTLS_PRIVATE(state);
 
-    uint8_t *secret;
-    size_t secret_length;
-    uint8_t *seed;
-    size_t seed_length;
-    uint8_t *label;
-    size_t label_length;
+    uint8_t *MBEDTLS_PRIVATE(secret);
+    size_t MBEDTLS_PRIVATE(secret_length);
+    uint8_t *MBEDTLS_PRIVATE(seed);
+    size_t MBEDTLS_PRIVATE(seed_length);
+    uint8_t *MBEDTLS_PRIVATE(label);
+    size_t MBEDTLS_PRIVATE(label_length);
 
-    uint8_t Ai[PSA_HASH_MAX_SIZE];
+    uint8_t MBEDTLS_PRIVATE(Ai)[PSA_HASH_MAX_SIZE];
 
     /* `HMAC_hash( prk, A(i) + seed )` in the notation of RFC 5246, Sect. 5. */
-    uint8_t output_block[PSA_HASH_MAX_SIZE];
+    uint8_t MBEDTLS_PRIVATE(output_block)[PSA_HASH_MAX_SIZE];
 } psa_tls12_prf_key_derivation_t;
 #endif /* MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) ||
         * MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS */
 
 struct psa_key_derivation_s
 {
-    psa_algorithm_t alg;
-    unsigned int can_output_key : 1;
-    size_t capacity;
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
+    unsigned int MBEDTLS_PRIVATE(can_output_key) : 1;
+    size_t MBEDTLS_PRIVATE(capacity);
     union
     {
         /* Make the union non-empty even with no supported algorithms. */
-        uint8_t dummy;
+        uint8_t MBEDTLS_PRIVATE(dummy);
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_HKDF)
-        psa_hkdf_key_derivation_t hkdf;
+        psa_hkdf_key_derivation_t MBEDTLS_PRIVATE(hkdf);
 #endif
 #if defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PRF) || \
     defined(MBEDTLS_PSA_BUILTIN_ALG_TLS12_PSK_TO_MS)
-        psa_tls12_prf_key_derivation_t tls12_prf;
+        psa_tls12_prf_key_derivation_t MBEDTLS_PRIVATE(tls12_prf);
 #endif
-    } ctx;
+    } MBEDTLS_PRIVATE(ctx);
 };
 
 /* This only zeroes out the first byte in the union, the rest is unspecified. */
@@ -258,9 +259,9 @@
 
 struct psa_key_policy_s
 {
-    psa_key_usage_t usage;
-    psa_algorithm_t alg;
-    psa_algorithm_t alg2;
+    psa_key_usage_t MBEDTLS_PRIVATE(usage);
+    psa_algorithm_t MBEDTLS_PRIVATE(alg);
+    psa_algorithm_t MBEDTLS_PRIVATE(alg2);
 };
 typedef struct psa_key_policy_s psa_key_policy_t;
 
@@ -309,24 +310,24 @@
 
 typedef struct
 {
-    psa_key_type_t type;
-    psa_key_bits_t bits;
-    psa_key_lifetime_t lifetime;
-    mbedtls_svc_key_id_t id;
-    psa_key_policy_t policy;
-    psa_key_attributes_flag_t flags;
+    psa_key_type_t MBEDTLS_PRIVATE(type);
+    psa_key_bits_t MBEDTLS_PRIVATE(bits);
+    psa_key_lifetime_t MBEDTLS_PRIVATE(lifetime);
+    mbedtls_svc_key_id_t MBEDTLS_PRIVATE(id);
+    psa_key_policy_t MBEDTLS_PRIVATE(policy);
+    psa_key_attributes_flag_t MBEDTLS_PRIVATE(flags);
 } psa_core_key_attributes_t;
 
 #define PSA_CORE_KEY_ATTRIBUTES_INIT {PSA_KEY_TYPE_NONE, 0, PSA_KEY_LIFETIME_VOLATILE, MBEDTLS_SVC_KEY_ID_INIT, PSA_KEY_POLICY_INIT, 0}
 
 struct psa_key_attributes_s
 {
-    psa_core_key_attributes_t core;
+    psa_core_key_attributes_t MBEDTLS_PRIVATE(core);
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
-    psa_key_slot_number_t slot_number;
+    psa_key_slot_number_t MBEDTLS_PRIVATE(slot_number);
 #endif /* MBEDTLS_PSA_CRYPTO_SE_C */
-    void *domain_parameters;
-    size_t domain_parameters_size;
+    void *MBEDTLS_PRIVATE(domain_parameters);
+    size_t MBEDTLS_PRIVATE(domain_parameters_size);
 };
 
 #if defined(MBEDTLS_PSA_CRYPTO_SE_C)
@@ -344,13 +345,13 @@
 static inline void psa_set_key_id( psa_key_attributes_t *attributes,
                                    mbedtls_svc_key_id_t key )
 {
-    psa_key_lifetime_t lifetime = attributes->core.lifetime;
+    psa_key_lifetime_t MBEDTLS_PRIVATE(lifetime) = attributes->MBEDTLS_PRIVATE(core).lifetime;
 
-    attributes->core.id = key;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = key;
 
     if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
     {
-        attributes->core.lifetime =
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) =
             PSA_KEY_LIFETIME_FROM_PERSISTENCE_AND_LOCATION(
                 PSA_KEY_LIFETIME_PERSISTENT,
                 PSA_KEY_LIFETIME_GET_LOCATION( lifetime ) );
@@ -360,7 +361,7 @@
 static inline mbedtls_svc_key_id_t psa_get_key_id(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.id );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) );
 }
 
 #ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
@@ -374,13 +375,13 @@
 static inline void psa_set_key_lifetime(psa_key_attributes_t *attributes,
                                         psa_key_lifetime_t lifetime)
 {
-    attributes->core.lifetime = lifetime;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) = lifetime;
     if( PSA_KEY_LIFETIME_IS_VOLATILE( lifetime ) )
     {
 #ifdef MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
-        attributes->core.id.key_id = 0;
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id).key_id = 0;
 #else
-        attributes->core.id = 0;
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(id) = 0;
 #endif
     }
 }
@@ -388,31 +389,31 @@
 static inline psa_key_lifetime_t psa_get_key_lifetime(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.lifetime );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(lifetime) );
 }
 
 static inline void psa_set_key_usage_flags(psa_key_attributes_t *attributes,
                                            psa_key_usage_t usage_flags)
 {
-    attributes->core.policy.usage = usage_flags;
+    attributes->MBEDTLS_PRIVATE(core).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->core.policy.usage );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(usage) );
 }
 
 static inline void psa_set_key_algorithm(psa_key_attributes_t *attributes,
                                          psa_algorithm_t alg)
 {
-    attributes->core.policy.alg = alg;
+    attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg) = alg;
 }
 
 static inline psa_algorithm_t psa_get_key_algorithm(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.policy.alg );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(policy).MBEDTLS_PRIVATE(alg) );
 }
 
 /* This function is declared in crypto_extra.h, which comes after this
@@ -425,10 +426,10 @@
 static inline void psa_set_key_type(psa_key_attributes_t *attributes,
                                     psa_key_type_t type)
 {
-    if( attributes->domain_parameters == NULL )
+    if( attributes->MBEDTLS_PRIVATE(domain_parameters) == NULL )
     {
         /* Common case: quick path */
-        attributes->core.type = type;
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(type) = type;
     }
     else
     {
@@ -443,22 +444,22 @@
 static inline psa_key_type_t psa_get_key_type(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.type );
+    return( attributes->MBEDTLS_PRIVATE(core).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->core.bits = PSA_KEY_BITS_TOO_LARGE;
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = PSA_KEY_BITS_TOO_LARGE;
     else
-        attributes->core.bits = (psa_key_bits_t) bits;
+        attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) = (psa_key_bits_t) bits;
 }
 
 static inline size_t psa_get_key_bits(
     const psa_key_attributes_t *attributes)
 {
-    return( attributes->core.bits );
+    return( attributes->MBEDTLS_PRIVATE(core).MBEDTLS_PRIVATE(bits) );
 }
 
 #ifdef __cplusplus