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mbedtls/library/psa_crypto_driver_wrappers.c
Sergey 26f53f107e Fix compiler warning: unreachable code 
Signed-off-by: Sergey <sergio_nsk@yahoo.de>
2023-02-11 18:20:20 -07:00

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/*
* 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 "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 "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 /* MBEDTLS_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 /* MBEDTLS_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;
}
}
/** Get the key buffer size required to store the key material of a key
* associated with an opaque driver without storage.
*
* \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_INVALID_ARGUMENT
* The size in bits of the key is not valid.
* \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.
*/
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_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_NOT_SUPPORTED;
}
}
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 /* 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_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);
default:
/* Importing a key with external storage in not yet supported.
* Return in error indicating that the lifetime is not valid. */
(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 /* MBEDTLS_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;
}
}
/*
* 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;
#else /* MBEDTLS_PSA_BUILTIN_CIPHER */
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:
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;
}
}
/*
* 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;
}
}
#endif /* MBEDTLS_PSA_CRYPTO_C */
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