psa: aead: Add driver delegation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index eb6fae0..d8de189 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -3535,7 +3535,7 @@
.core = slot->attr
};
- status = mbedtls_psa_aead_encrypt(
+ status = psa_driver_wrapper_aead_encrypt(
&attributes, slot->key.data, slot->key.bytes,
alg,
nonce, nonce_length,
@@ -3577,7 +3577,7 @@
.core = slot->attr
};
- status = mbedtls_psa_aead_decrypt(
+ status = psa_driver_wrapper_aead_decrypt(
&attributes, slot->key.data, slot->key.bytes,
alg,
nonce, nonce_length,
diff --git a/library/psa_crypto_driver_wrappers.c b/library/psa_crypto_driver_wrappers.c
index 9459c46..536505e 100644
--- a/library/psa_crypto_driver_wrappers.c
+++ b/library/psa_crypto_driver_wrappers.c
@@ -19,6 +19,7 @@
* limitations under the License.
*/
+#include "psa_crypto_aead.h"
#include "psa_crypto_cipher.h"
#include "psa_crypto_core.h"
#include "psa_crypto_driver_wrappers.h"
@@ -1177,4 +1178,107 @@
}
}
+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 = 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 = 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 );
+ }
+}
/* End of automatically generated file. */
diff --git a/library/psa_crypto_driver_wrappers.h b/library/psa_crypto_driver_wrappers.h
index e336996..e499411 100644
--- a/library/psa_crypto_driver_wrappers.h
+++ b/library/psa_crypto_driver_wrappers.h
@@ -156,6 +156,28 @@
psa_status_t psa_driver_wrapper_hash_abort(
psa_hash_operation_t *operation );
+/*
+ * AEAD functions
+ */
+
+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 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 );
+
#endif /* PSA_CRYPTO_DRIVER_WRAPPERS_H */
/* End of automatically generated file. */