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/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));
 
     /*