Add missing library/psa_crypto_driver_wrappers.c
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
new file mode 100644
index 0000000..a5ae6a2
--- /dev/null
+++ b/library/psa_crypto_driver_wrappers.c
@@ -0,0 +1,2471 @@
+/*
+ * Functions to delegate cryptographic operations to an available
+ * and appropriate accelerator.
+ * Warning: This file will be auto-generated in the future.
+ */
+/* Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "common.h"
+#include "psa_crypto_aead.h"
+#include "psa_crypto_cipher.h"
+#include "psa_crypto_core.h"
+#include "psa_crypto_driver_wrappers.h"
+#include "psa_crypto_hash.h"
+#include "psa_crypto_mac.h"
+#include "psa_crypto_rsa.h"
+
+#include "mbedtls/platform.h"
+
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+
+#if defined(MBEDTLS_PSA_CRYPTO_DRIVERS)
+
+/* Include test driver definition when running tests */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+#ifndef PSA_CRYPTO_DRIVER_PRESENT
+#define PSA_CRYPTO_DRIVER_PRESENT
+#endif
+#ifndef PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT
+#define PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT
+#endif
+#include "test/drivers/test_driver.h"
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+
+/* Repeat above block for each JSON-declared driver during autogeneration */
+#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS */
+
+/* Auto-generated values depending on which drivers are registered.
+ * ID 0 is reserved for unallocated operations.
+ * ID 1 is reserved for the Mbed TLS software driver. */
+#define PSA_CRYPTO_MBED_TLS_DRIVER_ID (1)
+
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+#define PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID (2)
+#define PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID (3)
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+
+/* Support the 'old' SE interface when asked to */
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
+/* PSA_CRYPTO_DRIVER_PRESENT is defined when either a new-style or old-style
+ * SE driver is present, to avoid unused argument errors at compile time. */
+#ifndef PSA_CRYPTO_DRIVER_PRESENT
+#define PSA_CRYPTO_DRIVER_PRESENT
+#endif
+#include "psa_crypto_se.h"
+#endif
+
+psa_status_t psa_driver_wrapper_init( void )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
+ status = psa_init_all_se_drivers( );
+ if( status != PSA_SUCCESS )
+ return( status );
+#endif
+
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_init( );
+ if( status != PSA_SUCCESS )
+ return( status );
+
+ status = mbedtls_test_opaque_init( );
+ if( status != PSA_SUCCESS )
+ return( status );
+#endif
+
+ (void) status;
+ return( PSA_SUCCESS );
+}
+
+void psa_driver_wrapper_free( void )
+{
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
+ /* Unregister all secure element drivers, so that we restart from
+ * a pristine state. */
+ psa_unregister_all_se_drivers( );
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
+
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ mbedtls_test_transparent_free( );
+ mbedtls_test_opaque_free( );
+#endif
+}
+
+/* Start delegation functions */
+psa_status_t psa_driver_wrapper_sign_message(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *signature,
+ size_t signature_size,
+ size_t *signature_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_signature_sign_message(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_size,
+ signature_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ break;
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_signature_sign_message(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_size,
+ signature_length );
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+ break;
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ break;
+ }
+
+ return( psa_sign_message_builtin( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_size,
+ signature_length ) );
+}
+
+psa_status_t psa_driver_wrapper_verify_message(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *input,
+ size_t input_length,
+ const uint8_t *signature,
+ size_t signature_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_signature_verify_message(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ break;
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_signature_verify_message(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_length ) );
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+ break;
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ break;
+ }
+
+ return( psa_verify_message_builtin( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ signature,
+ signature_length ) );
+}
+
+psa_status_t psa_driver_wrapper_sign_hash(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+ uint8_t *signature, size_t signature_size, size_t *signature_length )
+{
+ /* 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( drv->asymmetric == NULL ||
+ drv->asymmetric->p_sign == NULL )
+ {
+ /* Key is defined in SE, but we have no way to exercise it */
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+ return( drv->asymmetric->p_sign(
+ drv_context, *( (psa_key_slot_number_t *)key_buffer ),
+ alg, hash, hash_length,
+ signature, signature_size, signature_length ) );
+ }
+#endif /* PSA_CRYPTO_SE_C */
+
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_signature_sign_hash( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_size,
+ signature_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ /* Fell through, meaning no accelerator supports this operation */
+ return( psa_sign_hash_builtin( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_size,
+ signature_length ) );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_signature_sign_hash( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_size,
+ signature_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_verify_hash(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
+ const uint8_t *signature, size_t signature_length )
+{
+ /* 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( drv->asymmetric == NULL ||
+ drv->asymmetric->p_verify == NULL )
+ {
+ /* Key is defined in SE, but we have no way to exercise it */
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+ return( drv->asymmetric->p_verify(
+ drv_context, *( (psa_key_slot_number_t *)key_buffer ),
+ alg, hash, hash_length,
+ signature, signature_length ) );
+ }
+#endif /* PSA_CRYPTO_SE_C */
+
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_signature_verify_hash(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ return( psa_verify_hash_builtin( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_length ) );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_signature_verify_hash( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ hash,
+ hash_length,
+ signature,
+ signature_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+/** Calculate the key buffer size required to store the key material of a key
+ * associated with an opaque driver from input key data.
+ *
+ * \param[in] attributes The key attributes
+ * \param[in] data The input key data.
+ * \param[in] data_length The input data length.
+ * \param[out] key_buffer_size Minimum buffer size to contain the key material.
+ *
+ * \retval #PSA_SUCCESS
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ */
+psa_status_t psa_driver_wrapper_get_key_buffer_size_from_key_data(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *data,
+ size_t data_length,
+ 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;
+
+ *key_buffer_size = 0;
+ switch( location )
+ {
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ *key_buffer_size = mbedtls_test_opaque_size_function( key_type,
+ PSA_BYTES_TO_BITS( data_length ) );
+ return( ( *key_buffer_size != 0 ) ?
+ PSA_SUCCESS : PSA_ERROR_NOT_SUPPORTED );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+
+ default:
+ (void)key_type;
+ (void)data;
+ (void)data_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+/** Get the key buffer size required to store the key material of a key
+ * associated with an opaque driver.
+ *
+ * \param[in] attributes The key attributes.
+ * \param[out] key_buffer_size Minimum buffer size to contain the key material
+ *
+ * \retval #PSA_SUCCESS
+ * The minimum size for a buffer to contain the key material has been
+ * returned successfully.
+ * \retval #PSA_ERROR_NOT_SUPPORTED
+ * The type and/or the size in bits of the key or the combination of
+ * the two is not supported.
+ * \retval #PSA_ERROR_INVALID_ARGUMENT
+ * The key is declared with a lifetime not known to us.
+ */
+psa_status_t psa_driver_wrapper_get_key_buffer_size(
+ 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;
+
+ *key_buffer_size = 0;
+ switch( location )
+ {
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+#if defined(MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS)
+ /* Emulate property 'builtin_key_size' */
+ if( psa_key_id_is_builtin(
+ MBEDTLS_SVC_KEY_ID_GET_KEY_ID(
+ psa_get_key_id( attributes ) ) ) )
+ {
+ *key_buffer_size = sizeof( psa_drv_slot_number_t );
+ return( PSA_SUCCESS );
+ }
+#endif /* MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS */
+ *key_buffer_size = mbedtls_test_opaque_size_function( key_type,
+ key_bits );
+ return( ( *key_buffer_size != 0 ) ?
+ PSA_SUCCESS : PSA_ERROR_NOT_SUPPORTED );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+
+ default:
+ (void)key_type;
+ (void)key_bits;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_generate_key(
+ const psa_key_attributes_t *attributes,
+ 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);
+
+ /* 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 ) )
+ {
+ size_t pubkey_length = 0; /* We don't support this feature yet */
+ if( drv->key_management == NULL ||
+ drv->key_management->p_generate == NULL )
+ {
+ /* Key is defined as being in SE, but we have no way to generate it */
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+ return( drv->key_management->p_generate(
+ drv_context,
+ *( (psa_key_slot_number_t *)key_buffer ),
+ attributes, NULL, 0, &pubkey_length ) );
+ }
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
+
+ switch( location )
+ {
+ 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 ) )
+ {
+ /* Cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_generate_key(
+ attributes, key_buffer, key_buffer_size,
+ key_buffer_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ break;
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+ }
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ /* Software fallback */
+ status = psa_generate_key_internal(
+ attributes, key_buffer, key_buffer_size, key_buffer_length );
+ break;
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_generate_key(
+ attributes, key_buffer, key_buffer_size, key_buffer_length );
+ break;
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ status = PSA_ERROR_INVALID_ARGUMENT;
+ break;
+ }
+
+ return( status );
+}
+
+psa_status_t psa_driver_wrapper_import_key(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *data,
+ size_t data_length,
+ uint8_t *key_buffer,
+ size_t key_buffer_size,
+ size_t *key_buffer_length,
+ size_t *bits )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
+ psa_get_key_lifetime( attributes ) );
+
+ /* 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( drv->key_management == NULL ||
+ drv->key_management->p_import == NULL )
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* The driver should set the number of key bits, however in
+ * case it doesn't, we initialize bits to an invalid value. */
+ *bits = PSA_MAX_KEY_BITS + 1;
+ status = drv->key_management->p_import(
+ drv_context,
+ *( (psa_key_slot_number_t *)key_buffer ),
+ attributes, data, data_length, bits );
+
+ if( status != PSA_SUCCESS )
+ return( status );
+
+ if( (*bits) > PSA_MAX_KEY_BITS )
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ return( PSA_SUCCESS );
+ }
+#endif /* PSA_CRYPTO_SE_C */
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_import_key(
+ attributes,
+ data, data_length,
+ key_buffer, key_buffer_size,
+ key_buffer_length, bits );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ /* Fell through, meaning no accelerator supports this operation */
+ return( psa_import_key_into_slot( attributes,
+ data, data_length,
+ key_buffer, key_buffer_size,
+ key_buffer_length, bits ) );
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_import_key(
+ attributes,
+ data, data_length,
+ key_buffer, key_buffer_size,
+ key_buffer_length, bits ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+
+}
+
+psa_status_t psa_driver_wrapper_export_key(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ uint8_t *data, size_t data_size, size_t *data_length )
+
+{
+ psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
+ psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
+ psa_get_key_lifetime( attributes ) );
+
+ /* 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( ( drv->key_management == NULL ) ||
+ ( drv->key_management->p_export == NULL ) )
+ {
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+
+ return( drv->key_management->p_export(
+ drv_context,
+ *( (psa_key_slot_number_t *)key_buffer ),
+ data, data_size, data_length ) );
+ }
+#endif /* PSA_CRYPTO_SE_C */
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ return( psa_export_key_internal( attributes,
+ key_buffer,
+ key_buffer_size,
+ data,
+ data_size,
+ data_length ) );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_export_key( attributes,
+ key_buffer,
+ key_buffer_size,
+ data,
+ data_size,
+ data_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ return( status );
+ }
+}
+
+psa_status_t psa_driver_wrapper_export_public_key(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ uint8_t *data, size_t data_size, size_t *data_length )
+
+{
+ psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
+ psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(
+ psa_get_key_lifetime( attributes ) );
+
+ /* 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( ( drv->key_management == NULL ) ||
+ ( drv->key_management->p_export_public == NULL ) )
+ {
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+
+ return( drv->key_management->p_export_public(
+ drv_context,
+ *( (psa_key_slot_number_t *)key_buffer ),
+ data, data_size, data_length ) );
+ }
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_export_public_key(
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ data,
+ data_size,
+ data_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ /* Fell through, meaning no accelerator supports this operation */
+ return( psa_export_public_key_internal( attributes,
+ key_buffer,
+ key_buffer_size,
+ data,
+ data_size,
+ data_length ) );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_export_public_key( attributes,
+ key_buffer,
+ key_buffer_size,
+ data,
+ data_size,
+ data_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ return( status );
+ }
+}
+
+psa_status_t psa_driver_wrapper_get_builtin_key(
+ psa_drv_slot_number_t slot_number,
+ psa_key_attributes_t *attributes,
+ uint8_t *key_buffer, size_t key_buffer_size, size_t *key_buffer_length )
+{
+ psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+ switch( location )
+ {
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_get_builtin_key(
+ slot_number,
+ attributes,
+ key_buffer, key_buffer_size, key_buffer_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+ default:
+ (void) slot_number;
+ (void) key_buffer;
+ (void) key_buffer_size;
+ (void) key_buffer_length;
+ return( PSA_ERROR_DOES_NOT_EXIST );
+ }
+}
+
+psa_status_t psa_driver_wrapper_copy_key(
+ psa_key_attributes_t *attributes,
+ const uint8_t *source_key, size_t source_key_length,
+ uint8_t *target_key_buffer, size_t target_key_buffer_size,
+ size_t *target_key_buffer_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+#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 ) )
+ {
+ /* Copying to a secure element is not implemented yet. */
+ return( PSA_ERROR_NOT_SUPPORTED );
+ }
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
+
+ switch( location )
+ {
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_copy_key( attributes, source_key,
+ source_key_length,
+ target_key_buffer,
+ target_key_buffer_size,
+ target_key_buffer_length) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ (void)source_key;
+ (void)source_key_length;
+ (void)target_key_buffer;
+ (void)target_key_buffer_size;
+ (void)target_key_buffer_length;
+ status = PSA_ERROR_INVALID_ARGUMENT;
+ }
+ return( status );
+}
+
+/*
+ * Cipher functions
+ */
+psa_status_t psa_driver_wrapper_cipher_encrypt(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *iv,
+ size_t iv_length,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *output,
+ size_t output_size,
+ size_t *output_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_cipher_encrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ iv,
+ iv_length,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ return( mbedtls_psa_cipher_encrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ iv,
+ iv_length,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length ) );
+#else
+ return( PSA_ERROR_NOT_SUPPORTED );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_cipher_encrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ iv,
+ iv_length,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ (void)iv;
+ (void)iv_length;
+ (void)input;
+ (void)input_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_cipher_decrypt(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *output,
+ size_t output_size,
+ size_t *output_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_cipher_decrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ return( mbedtls_psa_cipher_decrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length ) );
+#else
+ return( PSA_ERROR_NOT_SUPPORTED );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_cipher_decrypt( attributes,
+ key_buffer,
+ key_buffer_size,
+ alg,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ (void)input;
+ (void)input_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_cipher_encrypt_setup(
+ psa_cipher_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_cipher_encrypt_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg );
+ /* Declared with fallback == true */
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ /* Fell through, meaning no accelerator supports this operation */
+ status = mbedtls_psa_cipher_encrypt_setup( &operation->ctx.mbedtls_ctx,
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_cipher_encrypt_setup(
+ &operation->ctx.opaque_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
+
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)operation;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_cipher_decrypt_setup(
+ psa_cipher_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_cipher_decrypt_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg );
+ /* Declared with fallback == true */
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ /* Fell through, meaning no accelerator supports this operation */
+ status = mbedtls_psa_cipher_decrypt_setup( &operation->ctx.mbedtls_ctx,
+ attributes,
+ key_buffer,
+ key_buffer_size,
+ alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+
+ return( status );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_cipher_decrypt_setup(
+ &operation->ctx.opaque_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
+
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)operation;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_cipher_set_iv(
+ psa_cipher_operation_t *operation,
+ const uint8_t *iv,
+ size_t iv_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_cipher_set_iv( &operation->ctx.mbedtls_ctx,
+ iv,
+ iv_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_cipher_set_iv(
+ &operation->ctx.transparent_test_driver_ctx,
+ iv, iv_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_cipher_set_iv(
+ &operation->ctx.opaque_test_driver_ctx,
+ iv, iv_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)iv;
+ (void)iv_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_cipher_update(
+ psa_cipher_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *output,
+ size_t output_size,
+ size_t *output_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_cipher_update( &operation->ctx.mbedtls_ctx,
+ input,
+ input_length,
+ output,
+ output_size,
+ output_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_cipher_update(
+ &operation->ctx.transparent_test_driver_ctx,
+ input, input_length,
+ output, output_size, output_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_cipher_update(
+ &operation->ctx.opaque_test_driver_ctx,
+ input, input_length,
+ output, output_size, output_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)input;
+ (void)input_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_cipher_finish(
+ psa_cipher_operation_t *operation,
+ uint8_t *output,
+ size_t output_size,
+ size_t *output_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_cipher_finish( &operation->ctx.mbedtls_ctx,
+ output,
+ output_size,
+ output_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_cipher_finish(
+ &operation->ctx.transparent_test_driver_ctx,
+ output, output_size, output_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_cipher_finish(
+ &operation->ctx.opaque_test_driver_ctx,
+ output, output_size, output_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_cipher_abort(
+ psa_cipher_operation_t *operation )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_CIPHER)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_cipher_abort( &operation->ctx.mbedtls_ctx ) );
+#endif /* MBEDTLS_PSA_BUILTIN_CIPHER */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ status = mbedtls_test_transparent_cipher_abort(
+ &operation->ctx.transparent_test_driver_ctx );
+ mbedtls_platform_zeroize(
+ &operation->ctx.transparent_test_driver_ctx,
+ sizeof( operation->ctx.transparent_test_driver_ctx ) );
+ return( status );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ status = mbedtls_test_opaque_cipher_abort(
+ &operation->ctx.opaque_test_driver_ctx );
+ mbedtls_platform_zeroize(
+ &operation->ctx.opaque_test_driver_ctx,
+ sizeof( operation->ctx.opaque_test_driver_ctx ) );
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+/*
+ * Hashing functions
+ */
+psa_status_t psa_driver_wrapper_hash_compute(
+ psa_algorithm_t alg,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *hash,
+ size_t hash_size,
+ size_t *hash_length)
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+ /* Try accelerators first */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_hash_compute(
+ alg, input, input_length, hash, hash_size, hash_length );
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif
+
+ /* If software fallback is compiled in, try fallback */
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ status = mbedtls_psa_hash_compute( alg, input, input_length,
+ hash, hash_size, hash_length );
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif
+ (void) status;
+ (void) alg;
+ (void) input;
+ (void) input_length;
+ (void) hash;
+ (void) hash_size;
+ (void) hash_length;
+
+ return( PSA_ERROR_NOT_SUPPORTED );
+}
+
+psa_status_t psa_driver_wrapper_hash_setup(
+ psa_hash_operation_t *operation,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+
+ /* Try setup on accelerators first */
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_hash_setup(
+ &operation->ctx.test_driver_ctx, alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif
+
+ /* If software fallback is compiled in, try fallback */
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ status = mbedtls_psa_hash_setup( &operation->ctx.mbedtls_ctx, alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif
+ /* Nothing left to try if we fall through here */
+ (void) status;
+ (void) operation;
+ (void) alg;
+ return( PSA_ERROR_NOT_SUPPORTED );
+}
+
+psa_status_t psa_driver_wrapper_hash_clone(
+ const psa_hash_operation_t *source_operation,
+ psa_hash_operation_t *target_operation )
+{
+ switch( source_operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ target_operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+ return( mbedtls_psa_hash_clone( &source_operation->ctx.mbedtls_ctx,
+ &target_operation->ctx.mbedtls_ctx ) );
+#endif
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ target_operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+ return( mbedtls_test_transparent_hash_clone(
+ &source_operation->ctx.test_driver_ctx,
+ &target_operation->ctx.test_driver_ctx ) );
+#endif
+ default:
+ (void) target_operation;
+ return( PSA_ERROR_BAD_STATE );
+ }
+}
+
+psa_status_t psa_driver_wrapper_hash_update(
+ psa_hash_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_hash_update( &operation->ctx.mbedtls_ctx,
+ input, input_length ) );
+#endif
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_hash_update(
+ &operation->ctx.test_driver_ctx,
+ input, input_length ) );
+#endif
+ default:
+ (void) input;
+ (void) input_length;
+ return( PSA_ERROR_BAD_STATE );
+ }
+}
+
+psa_status_t psa_driver_wrapper_hash_finish(
+ psa_hash_operation_t *operation,
+ uint8_t *hash,
+ size_t hash_size,
+ size_t *hash_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_hash_finish( &operation->ctx.mbedtls_ctx,
+ hash, hash_size, hash_length ) );
+#endif
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_hash_finish(
+ &operation->ctx.test_driver_ctx,
+ hash, hash_size, hash_length ) );
+#endif
+ default:
+ (void) hash;
+ (void) hash_size;
+ (void) hash_length;
+ return( PSA_ERROR_BAD_STATE );
+ }
+}
+
+psa_status_t psa_driver_wrapper_hash_abort(
+ psa_hash_operation_t *operation )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_HASH)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_hash_abort( &operation->ctx.mbedtls_ctx ) );
+#endif
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_hash_abort(
+ &operation->ctx.test_driver_ctx ) );
+#endif
+ default:
+ return( PSA_ERROR_BAD_STATE );
+ }
+}
+
+psa_status_t psa_driver_wrapper_aead_encrypt(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *nonce, size_t nonce_length,
+ const uint8_t *additional_data, size_t additional_data_length,
+ const uint8_t *plaintext, size_t plaintext_length,
+ uint8_t *ciphertext, size_t ciphertext_size, size_t *ciphertext_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_aead_encrypt(
+ attributes, key_buffer, key_buffer_size,
+ alg,
+ nonce, nonce_length,
+ additional_data, additional_data_length,
+ plaintext, plaintext_length,
+ ciphertext, ciphertext_size, ciphertext_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ /* Fell through, meaning no accelerator supports this operation */
+ return( mbedtls_psa_aead_encrypt(
+ attributes, key_buffer, key_buffer_size,
+ alg,
+ nonce, nonce_length,
+ additional_data, additional_data_length,
+ plaintext, plaintext_length,
+ ciphertext, ciphertext_size, ciphertext_length ) );
+
+ /* Add cases for opaque driver here */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_aead_decrypt(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *nonce, size_t nonce_length,
+ const uint8_t *additional_data, size_t additional_data_length,
+ const uint8_t *ciphertext, size_t ciphertext_length,
+ uint8_t *plaintext, size_t plaintext_size, size_t *plaintext_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_aead_decrypt(
+ attributes, key_buffer, key_buffer_size,
+ alg,
+ nonce, nonce_length,
+ additional_data, additional_data_length,
+ ciphertext, ciphertext_length,
+ plaintext, plaintext_size, plaintext_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ /* Fell through, meaning no accelerator supports this operation */
+ return( mbedtls_psa_aead_decrypt(
+ attributes, key_buffer, key_buffer_size,
+ alg,
+ nonce, nonce_length,
+ additional_data, additional_data_length,
+ ciphertext, ciphertext_length,
+ plaintext, plaintext_size, plaintext_length ) );
+
+ /* Add cases for opaque driver here */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_get_tag_len( psa_aead_operation_t *operation,
+ uint8_t *tag_len )
+{
+ if( operation == NULL || tag_len == NULL )
+ return( PSA_ERROR_INVALID_ARGUMENT );
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ *tag_len = operation->ctx.transparent_test_driver_ctx.tag_length;
+ return ( PSA_SUCCESS );
+#endif
+#endif
+ *tag_len = operation->ctx.mbedtls_ctx.tag_length;
+ return ( PSA_SUCCESS );
+}
+
+psa_status_t psa_driver_wrapper_aead_encrypt_setup(
+ psa_aead_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+ status = mbedtls_test_transparent_aead_encrypt_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes, key_buffer, key_buffer_size,
+ alg );
+
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ /* Fell through, meaning no accelerator supports this operation */
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+ status = mbedtls_psa_aead_encrypt_setup(
+ &operation->ctx.mbedtls_ctx, attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ return( status );
+
+ /* Add cases for opaque driver here */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_aead_decrypt_setup(
+ psa_aead_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer, size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+ status = mbedtls_test_transparent_aead_decrypt_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ /* Fell through, meaning no accelerator supports this operation */
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+ status = mbedtls_psa_aead_decrypt_setup(
+ &operation->ctx.mbedtls_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ return( status );
+
+ /* Add cases for opaque driver here */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_aead_set_nonce(
+ psa_aead_operation_t *operation,
+ const uint8_t *nonce,
+ size_t nonce_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_set_nonce( &operation->ctx.mbedtls_ctx,
+ nonce,
+ nonce_length ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_set_nonce(
+ &operation->ctx.transparent_test_driver_ctx,
+ nonce, nonce_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)nonce;
+ (void)nonce_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_set_lengths(
+ psa_aead_operation_t *operation,
+ size_t ad_length,
+ size_t plaintext_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_set_lengths( &operation->ctx.mbedtls_ctx,
+ ad_length,
+ plaintext_length ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_set_lengths(
+ &operation->ctx.transparent_test_driver_ctx,
+ ad_length, plaintext_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)ad_length;
+ (void)plaintext_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_update_ad(
+ psa_aead_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_update_ad( &operation->ctx.mbedtls_ctx,
+ input,
+ input_length ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_update_ad(
+ &operation->ctx.transparent_test_driver_ctx,
+ input, input_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)input;
+ (void)input_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_update(
+ psa_aead_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *output,
+ size_t output_size,
+ size_t *output_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_update( &operation->ctx.mbedtls_ctx,
+ input, input_length,
+ output, output_size,
+ output_length ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_update(
+ &operation->ctx.transparent_test_driver_ctx,
+ input, input_length, output, output_size,
+ output_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)input;
+ (void)input_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_finish(
+ psa_aead_operation_t *operation,
+ uint8_t *ciphertext,
+ size_t ciphertext_size,
+ size_t *ciphertext_length,
+ uint8_t *tag,
+ size_t tag_size,
+ size_t *tag_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_finish( &operation->ctx.mbedtls_ctx,
+ ciphertext,
+ ciphertext_size,
+ ciphertext_length, tag,
+ tag_size, tag_length ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_finish(
+ &operation->ctx.transparent_test_driver_ctx,
+ ciphertext, ciphertext_size,
+ ciphertext_length, tag, tag_size, tag_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)ciphertext;
+ (void)ciphertext_size;
+ (void)ciphertext_length;
+ (void)tag;
+ (void)tag_size;
+ (void)tag_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_verify(
+ psa_aead_operation_t *operation,
+ uint8_t *plaintext,
+ size_t plaintext_size,
+ size_t *plaintext_length,
+ const uint8_t *tag,
+ size_t tag_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ {
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ uint8_t check_tag[PSA_AEAD_TAG_MAX_SIZE];
+ size_t check_tag_length;
+
+ status = mbedtls_psa_aead_finish( &operation->ctx.mbedtls_ctx,
+ plaintext,
+ plaintext_size,
+ plaintext_length,
+ check_tag,
+ sizeof( check_tag ),
+ &check_tag_length );
+
+ if( status == PSA_SUCCESS )
+ {
+ if( tag_length != check_tag_length ||
+ mbedtls_psa_safer_memcmp( tag, check_tag, tag_length )
+ != 0 )
+ status = PSA_ERROR_INVALID_SIGNATURE;
+ }
+
+ mbedtls_platform_zeroize( check_tag, sizeof( check_tag ) );
+
+ return( status );
+ }
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_verify(
+ &operation->ctx.transparent_test_driver_ctx,
+ plaintext, plaintext_size,
+ plaintext_length, tag, tag_length ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ (void)plaintext;
+ (void)plaintext_size;
+ (void)plaintext_length;
+ (void)tag;
+ (void)tag_length;
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+psa_status_t psa_driver_wrapper_aead_abort(
+ psa_aead_operation_t *operation )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_AEAD)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_aead_abort( &operation->ctx.mbedtls_ctx ) );
+
+#endif /* MBEDTLS_PSA_BUILTIN_AEAD */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_aead_abort(
+ &operation->ctx.transparent_test_driver_ctx ) );
+
+ /* Add cases for opaque driver here */
+
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ }
+
+ return( PSA_ERROR_INVALID_ARGUMENT );
+}
+
+/*
+ * MAC functions
+ */
+psa_status_t psa_driver_wrapper_mac_compute(
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg,
+ const uint8_t *input,
+ size_t input_length,
+ uint8_t *mac,
+ size_t mac_size,
+ size_t *mac_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_mac_compute(
+ attributes, key_buffer, key_buffer_size, alg,
+ input, input_length,
+ mac, mac_size, mac_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ /* Fell through, meaning no accelerator supports this operation */
+ status = mbedtls_psa_mac_compute(
+ attributes, key_buffer, key_buffer_size, alg,
+ input, input_length,
+ mac, mac_size, mac_length );
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_mac_compute(
+ attributes, key_buffer, key_buffer_size, alg,
+ input, input_length,
+ mac, mac_size, mac_length );
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void) key_buffer;
+ (void) key_buffer_size;
+ (void) alg;
+ (void) input;
+ (void) input_length;
+ (void) mac;
+ (void) mac_size;
+ (void) mac_length;
+ (void) status;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_sign_setup(
+ psa_mac_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_mac_sign_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+ /* Declared with fallback == true */
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ /* Fell through, meaning no accelerator supports this operation */
+ status = mbedtls_psa_mac_sign_setup( &operation->ctx.mbedtls_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_mac_sign_setup(
+ &operation->ctx.opaque_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
+
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void) status;
+ (void) operation;
+ (void) key_buffer;
+ (void) key_buffer_size;
+ (void) alg;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_verify_setup(
+ psa_mac_operation_t *operation,
+ const psa_key_attributes_t *attributes,
+ const uint8_t *key_buffer,
+ size_t key_buffer_size,
+ psa_algorithm_t alg )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_mac_verify_setup(
+ &operation->ctx.transparent_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+ /* Declared with fallback == true */
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ /* Fell through, meaning no accelerator supports this operation */
+ status = mbedtls_psa_mac_verify_setup( &operation->ctx.mbedtls_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_MBED_TLS_DRIVER_ID;
+
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+ return( PSA_ERROR_NOT_SUPPORTED );
+
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ status = mbedtls_test_opaque_mac_verify_setup(
+ &operation->ctx.opaque_test_driver_ctx,
+ attributes,
+ key_buffer, key_buffer_size,
+ alg );
+
+ if( status == PSA_SUCCESS )
+ operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
+
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void) status;
+ (void) operation;
+ (void) key_buffer;
+ (void) key_buffer_size;
+ (void) alg;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_update(
+ psa_mac_operation_t *operation,
+ const uint8_t *input,
+ size_t input_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_mac_update( &operation->ctx.mbedtls_ctx,
+ input, input_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_mac_update(
+ &operation->ctx.transparent_test_driver_ctx,
+ input, input_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_mac_update(
+ &operation->ctx.opaque_test_driver_ctx,
+ input, input_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ (void) input;
+ (void) input_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_sign_finish(
+ psa_mac_operation_t *operation,
+ uint8_t *mac,
+ size_t mac_size,
+ size_t *mac_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_mac_sign_finish( &operation->ctx.mbedtls_ctx,
+ mac, mac_size, mac_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_mac_sign_finish(
+ &operation->ctx.transparent_test_driver_ctx,
+ mac, mac_size, mac_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_mac_sign_finish(
+ &operation->ctx.opaque_test_driver_ctx,
+ mac, mac_size, mac_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ (void) mac;
+ (void) mac_size;
+ (void) mac_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_verify_finish(
+ psa_mac_operation_t *operation,
+ const uint8_t *mac,
+ size_t mac_length )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_mac_verify_finish( &operation->ctx.mbedtls_ctx,
+ mac, mac_length ) );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_mac_verify_finish(
+ &operation->ctx.transparent_test_driver_ctx,
+ mac, mac_length ) );
+
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_mac_verify_finish(
+ &operation->ctx.opaque_test_driver_ctx,
+ mac, mac_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ (void) mac;
+ (void) mac_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_mac_abort(
+ psa_mac_operation_t *operation )
+{
+ switch( operation->id )
+ {
+#if defined(MBEDTLS_PSA_BUILTIN_MAC)
+ case PSA_CRYPTO_MBED_TLS_DRIVER_ID:
+ return( mbedtls_psa_mac_abort( &operation->ctx.mbedtls_ctx ) );
+#endif /* MBEDTLS_PSA_BUILTIN_MAC */
+
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
+ return( mbedtls_test_transparent_mac_abort(
+ &operation->ctx.transparent_test_driver_ctx ) );
+ case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
+ return( mbedtls_test_opaque_mac_abort(
+ &operation->ctx.opaque_test_driver_ctx ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ default:
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+/*
+ * Asymmetric cryptography
+ */
+psa_status_t psa_driver_wrapper_asymmetric_encrypt(
+ const psa_key_attributes_t *attributes, const uint8_t *key_buffer,
+ size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *input,
+ size_t input_length, const uint8_t *salt, size_t salt_length,
+ uint8_t *output, size_t output_size, size_t *output_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_asymmetric_encrypt( attributes,
+ key_buffer, key_buffer_size, alg, input, input_length,
+ salt, salt_length, output, output_size,
+ output_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ return( mbedtls_psa_asymmetric_encrypt( attributes,
+ key_buffer, key_buffer_size, alg, input, input_length,
+ salt, salt_length, output, output_size, output_length )
+ );
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_asymmetric_encrypt( attributes,
+ key_buffer, key_buffer_size, alg, input, input_length,
+ salt, salt_length, output, output_size, output_length )
+ );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ (void)input;
+ (void)input_length;
+ (void)salt;
+ (void)salt_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+psa_status_t psa_driver_wrapper_asymmetric_decrypt(
+ const psa_key_attributes_t *attributes, const uint8_t *key_buffer,
+ size_t key_buffer_size, psa_algorithm_t alg, const uint8_t *input,
+ size_t input_length, const uint8_t *salt, size_t salt_length,
+ uint8_t *output, size_t output_size, size_t *output_length )
+{
+ psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
+ psa_key_location_t location =
+ PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
+
+ switch( location )
+ {
+ case PSA_KEY_LOCATION_LOCAL_STORAGE:
+ /* Key is stored in the slot in export representation, so
+ * cycle through all known transparent accelerators */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ status = mbedtls_test_transparent_asymmetric_decrypt( attributes,
+ key_buffer, key_buffer_size, alg, input, input_length,
+ salt, salt_length, output, output_size,
+ output_length );
+ /* Declared with fallback == true */
+ if( status != PSA_ERROR_NOT_SUPPORTED )
+ return( status );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+ return( mbedtls_psa_asymmetric_decrypt( attributes,
+ key_buffer, key_buffer_size, alg,input, input_length,
+ salt, salt_length, output, output_size,
+ output_length ) );
+ /* Add cases for opaque driver here */
+#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
+#if defined(PSA_CRYPTO_DRIVER_TEST)
+ case PSA_CRYPTO_TEST_DRIVER_LOCATION:
+ return( mbedtls_test_opaque_asymmetric_decrypt( attributes,
+ key_buffer, key_buffer_size, alg, input, input_length,
+ salt, salt_length, output, output_size,
+ output_length ) );
+#endif /* PSA_CRYPTO_DRIVER_TEST */
+#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
+
+ default:
+ /* Key is declared with a lifetime not known to us */
+ (void)status;
+ (void)key_buffer;
+ (void)key_buffer_size;
+ (void)alg;
+ (void)input;
+ (void)input_length;
+ (void)salt;
+ (void)salt_length;
+ (void)output;
+ (void)output_size;
+ (void)output_length;
+ return( PSA_ERROR_INVALID_ARGUMENT );
+ }
+}
+
+#endif /* MBEDTLS_PSA_CRYPTO_C */
