/*
* 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_core.h"
#include "psa_crypto_driver_wrappers.h"
#include "mbedtls/platform.h"
#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 */
/* Auto-generated values depending on which drivers are registered. ID 0 is
* reserved for unallocated operations. */
#if defined(PSA_CRYPTO_DRIVER_TEST)
#define PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID (1)
#define PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID (2)
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS */
/* 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
/* Start delegation functions */
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 = 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_internal(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_LIFETIME:
return (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 = 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_internal(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_LIFETIME:
return (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 for the key material of a generated key in the
* case of 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_LIFETIME:
#ifdef TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION
*key_buffer_size = test_size_function(key_type, key_bits);
return (PSA_SUCCESS);
#else /* TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION */
if (PSA_KEY_TYPE_IS_KEY_PAIR(key_type)) {
int public_key_overhead =
((TEST_DRIVER_KEY_CONTEXT_STORE_PUBLIC_KEY == 1) ?
PSA_EXPORT_KEY_OUTPUT_SIZE(key_type, key_bits) : 0);
*key_buffer_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
+ TEST_DRIVER_KEY_CONTEXT_PUBLIC_KEY_SIZE
+ public_key_overhead;
} else if (PSA_KEY_TYPE_IS_PUBLIC_KEY(key_type)) {
*key_buffer_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
+ TEST_DRIVER_KEY_CONTEXT_PUBLIC_KEY_SIZE;
} else if (!PSA_KEY_TYPE_IS_KEY_PAIR(key_type) &&
!PSA_KEY_TYPE_IS_PUBLIC_KEY(key_type)) {
*key_buffer_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
+ TEST_DRIVER_KEY_CONTEXT_SYMMETRIC_FACTOR
* ((key_bits + 7) / 8);
} else {
return (PSA_ERROR_NOT_SUPPORTED);
}
return (PSA_SUCCESS);
#endif /* TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION */
#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 = 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_LIFETIME:
status = 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 = 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 /* 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_LIFETIME:
return (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 = 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_LIFETIME:
return (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);
}
}
/*
* Cipher functions
*/
psa_status_t psa_driver_wrapper_cipher_encrypt(
psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t output_size,
size_t *output_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
psa_key_attributes_t attributes = {
.core = slot->attr
};
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_DRIVER_TEST)
status = test_transparent_cipher_encrypt(&attributes,
slot->key.data,
slot->key.bytes,
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 */
/* Fell through, meaning no accelerator supports this operation */
return (PSA_ERROR_NOT_SUPPORTED);
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
return (test_opaque_cipher_encrypt(&attributes,
slot->key.data,
slot->key.bytes,
alg,
input,
input_length,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return (status);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) slot;
(void) alg;
(void) input;
(void) input_length;
(void) output;
(void) output_size;
(void) output_length;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_decrypt(
psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t output_size,
size_t *output_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
psa_key_attributes_t attributes = {
.core = slot->attr
};
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_DRIVER_TEST)
status = test_transparent_cipher_decrypt(&attributes,
slot->key.data,
slot->key.bytes,
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 */
/* Fell through, meaning no accelerator supports this operation */
return (PSA_ERROR_NOT_SUPPORTED);
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
return (test_opaque_cipher_decrypt(&attributes,
slot->key.data,
slot->key.bytes,
alg,
input,
input_length,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return (status);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) slot;
(void) alg;
(void) input;
(void) input_length;
(void) output;
(void) output_size;
(void) output_length;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_encrypt_setup(
psa_operation_driver_context_t *operation,
psa_key_slot_t *slot,
psa_algorithm_t alg) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
psa_key_attributes_t attributes = {
.core = slot->attr
};
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_DRIVER_TEST)
operation->ctx = mbedtls_calloc(1, sizeof(test_transparent_cipher_operation_t));
if (operation->ctx == NULL)
return PSA_ERROR_INSUFFICIENT_MEMORY;
status = test_transparent_cipher_encrypt_setup(operation->ctx,
&attributes,
slot->key.data,
slot->key.bytes,
alg);
/* Declared with fallback == true */
if (status == PSA_SUCCESS)
operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
else {
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_transparent_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
}
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
/* Fell through, meaning no accelerator supports this operation */
return (PSA_ERROR_NOT_SUPPORTED);
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
operation->ctx = mbedtls_calloc(1, sizeof(test_opaque_cipher_operation_t));
if (operation->ctx == NULL)
return (PSA_ERROR_INSUFFICIENT_MEMORY);
status = test_opaque_cipher_encrypt_setup(operation->ctx,
&attributes,
slot->key.data,
slot->key.bytes,
alg);
if (status == PSA_SUCCESS)
operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
else {
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_opaque_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
}
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return (PSA_ERROR_NOT_SUPPORTED);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)slot;
(void)alg;
(void)operation;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_decrypt_setup(
psa_operation_driver_context_t *operation,
psa_key_slot_t *slot,
psa_algorithm_t alg) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
psa_key_attributes_t attributes = {
.core = slot->attr
};
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_DRIVER_TEST)
operation->ctx = mbedtls_calloc(1, sizeof(test_transparent_cipher_operation_t));
if (operation->ctx == NULL)
return (PSA_ERROR_INSUFFICIENT_MEMORY);
status = test_transparent_cipher_decrypt_setup(operation->ctx,
&attributes,
slot->key.data,
slot->key.bytes,
alg);
/* Declared with fallback == true */
if (status == PSA_SUCCESS)
operation->id = PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID;
else {
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_transparent_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
}
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
/* Fell through, meaning no accelerator supports this operation */
return (PSA_ERROR_NOT_SUPPORTED);
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
operation->ctx = mbedtls_calloc(1, sizeof(test_opaque_cipher_operation_t));
if (operation->ctx == NULL)
return PSA_ERROR_INSUFFICIENT_MEMORY;
status = test_opaque_cipher_decrypt_setup(operation->ctx,
&attributes,
slot->key.data,
slot->key.bytes,
alg);
if (status == PSA_SUCCESS)
operation->id = PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID;
else {
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_opaque_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
}
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return (PSA_ERROR_NOT_SUPPORTED);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)slot;
(void)alg;
(void)operation;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_generate_iv(
psa_operation_driver_context_t *operation,
uint8_t *iv,
size_t iv_size,
size_t *iv_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
switch (operation->id) {
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
return (test_transparent_cipher_generate_iv(operation->ctx,
iv,
iv_size,
iv_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
return (test_opaque_cipher_generate_iv(operation->ctx,
iv,
iv_size,
iv_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is attached to a driver not known to us */
return (PSA_ERROR_BAD_STATE);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) operation;
(void) iv;
(void) iv_size;
(void) iv_length;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_set_iv(
psa_operation_driver_context_t *operation,
const uint8_t *iv,
size_t iv_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
switch (operation->id) {
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
return (test_transparent_cipher_set_iv(operation->ctx,
iv,
iv_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
return (test_opaque_cipher_set_iv(operation->ctx,
iv,
iv_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is attached to a driver not known to us */
return (PSA_ERROR_BAD_STATE);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) operation;
(void) iv;
(void) iv_length;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_update(
psa_operation_driver_context_t *operation,
const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t output_size,
size_t *output_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
switch (operation->id) {
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
return (test_transparent_cipher_update(operation->ctx,
input,
input_length,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
return (test_opaque_cipher_update(operation->ctx,
input,
input_length,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is attached to a driver not known to us */
return (PSA_ERROR_BAD_STATE);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) operation;
(void) input;
(void) input_length;
(void) output;
(void) output_length;
(void) output_size;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_finish(
psa_operation_driver_context_t *operation,
uint8_t *output,
size_t output_size,
size_t *output_length) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
switch (operation->id) {
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
return (test_transparent_cipher_finish(operation->ctx,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
return (test_opaque_cipher_finish(operation->ctx,
output,
output_size,
output_length));
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is attached to a driver not known to us */
return (PSA_ERROR_BAD_STATE);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) operation;
(void) output;
(void) output_size;
(void) output_length;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_cipher_abort(
psa_operation_driver_context_t *operation) {
#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
/* The object has (apparently) been initialized but it is not in use. It's
* ok to call abort on such an object, and there's nothing to do. */
if (operation->ctx == NULL && operation->id == 0)
return (PSA_SUCCESS);
switch (operation->id) {
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID:
status = test_transparent_cipher_abort(operation->ctx);
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_transparent_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
operation->id = 0;
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID:
status = test_opaque_cipher_abort(operation->ctx);
mbedtls_platform_zeroize(
operation->ctx,
sizeof(test_opaque_cipher_operation_t));
mbedtls_free(operation->ctx);
operation->ctx = NULL;
operation->id = 0;
return (status);
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Operation is attached to a driver not known to us */
return (PSA_ERROR_BAD_STATE);
}
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)operation;
return (PSA_ERROR_NOT_SUPPORTED);
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
/* End of automatically generated file. */