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polarssl/library/psa_crypto_driver_wrappers.c
Steven Cooreman b9b844220b Plug in the entry point for public key export through driver 
Including test.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2020-11-20 17:31:24 +01:00

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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_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( psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
uint8_t *signature,
size_t signature_size,
size_t *signature_length )
{
#if defined(PSA_CRYPTO_DRIVER_PRESENT)
/* 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( slot->attr.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,
slot->data.se.slot_number,
alg,
hash, hash_length,
signature, signature_size,
signature_length ) );
}
#endif /* PSA_CRYPTO_SE_C */
/* Then try accelerator API */
#if 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_signature_sign_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
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 */
/* 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_signature_sign_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
alg,
hash,
hash_length,
signature,
signature_size,
signature_length ) );
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return( status );
}
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)slot;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_size;
(void)signature_length;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_verify_hash( psa_key_slot_t *slot,
psa_algorithm_t alg,
const uint8_t *hash,
size_t hash_length,
const uint8_t *signature,
size_t signature_length )
{
#if defined(PSA_CRYPTO_DRIVER_PRESENT)
/* 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( slot->attr.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,
slot->data.se.slot_number,
alg,
hash, hash_length,
signature, signature_length ) );
}
#endif /* PSA_CRYPTO_SE_C */
/* Then try accelerator API */
#if 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_signature_verify_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
alg,
hash,
hash_length,
signature,
signature_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_signature_verify_hash( &attributes,
slot->data.key.data,
slot->data.key.bytes,
alg,
hash,
hash_length,
signature,
signature_length ) );
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return( status );
}
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void)slot;
(void)alg;
(void)hash;
(void)hash_length;
(void)signature;
(void)signature_length;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
/** Calculate the size to allocate for buffering a key with given attributes.
*
* This function provides a way to get the expected size for storing a key with
* the given attributes. This will be the size of the export representation for
* cleartext keys, and a driver-defined size for keys stored by opaque drivers.
*
* \param[in] attributes The key attribute structure of the key to store.
* \param[out] expected_size On success, a byte size large enough to contain
* the declared key.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_NOT_SUPPORTED
*/
static psa_status_t get_expected_key_size( const psa_key_attributes_t *attributes,
size_t *expected_size )
{
size_t buffer_size = 0;
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;
switch( location )
{
case PSA_KEY_LOCATION_LOCAL_STORAGE:
buffer_size = PSA_KEY_EXPORT_MAX_SIZE( key_type, key_bits );
if( buffer_size == 0 )
return( PSA_ERROR_NOT_SUPPORTED );
*expected_size = buffer_size;
return( PSA_SUCCESS );
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
#ifdef TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION
*expected_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_KEY_EXPORT_MAX_SIZE( key_type, key_bits ) : 0 );
*expected_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( attributes->core.type ) )
{
*expected_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 ( attributes->core.type ) )
{
*expected_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:
return( PSA_ERROR_NOT_SUPPORTED );
}
}
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
psa_status_t psa_driver_wrapper_generate_key( const psa_key_attributes_t *attributes,
psa_key_slot_t *slot )
{
#if defined(PSA_CRYPTO_DRIVER_PRESENT)
/* 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( slot->attr.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,
slot->data.se.slot_number, attributes,
NULL, 0, &pubkey_length ) );
}
#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
/* Then try accelerator API */
#if 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);
size_t export_size = 0;
status = get_expected_key_size( attributes, &export_size );
if( status != PSA_SUCCESS )
return( status );
slot->data.key.data = mbedtls_calloc(1, export_size);
if( slot->data.key.data == NULL )
return( PSA_ERROR_INSUFFICIENT_MEMORY );
slot->data.key.bytes = export_size;
switch( location )
{
case PSA_KEY_LOCATION_LOCAL_STORAGE:
/* Key is stored in the slot in export representation, so
* cycle through all known transparent accelerators */
/* Transparent drivers are limited to generating asymmetric keys */
if( ! PSA_KEY_TYPE_IS_ASYMMETRIC( slot->attr.type ) )
{
status = PSA_ERROR_NOT_SUPPORTED;
break;
}
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_generate_key( attributes,
slot->data.key.data,
slot->data.key.bytes,
&slot->data.key.bytes );
/* Declared with fallback == true */
if( status != PSA_ERROR_NOT_SUPPORTED )
break;
#endif /* PSA_CRYPTO_DRIVER_TEST */
/* Fell through, meaning no accelerator supports this operation */
status = PSA_ERROR_NOT_SUPPORTED;
break;
/* Add cases for opaque driver here */
#if defined(PSA_CRYPTO_DRIVER_TEST)
case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
status = test_opaque_generate_key( attributes,
slot->data.key.data,
slot->data.key.bytes,
&slot->data.key.bytes );
break;
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
status = PSA_ERROR_INVALID_ARGUMENT;
break;
}
if( status != PSA_SUCCESS )
{
/* free allocated buffer */
mbedtls_free( slot->data.key.data );
slot->data.key.data = NULL;
slot->data.key.bytes = 0;
}
return( status );
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
#else /* PSA_CRYPTO_DRIVER_PRESENT */
(void) attributes;
(void) slot;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_validate_key( const psa_key_attributes_t *attributes,
const uint8_t *data,
size_t data_length,
size_t *bits )
{
#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
psa_status_t status = PSA_ERROR_CORRUPTION_DETECTED;
/* Try accelerators in turn */
#if defined(PSA_CRYPTO_DRIVER_TEST)
status = test_transparent_validate_key( attributes,
data,
data_length,
bits );
/* Declared with fallback == true */
if( status != PSA_ERROR_NOT_SUPPORTED )
return( status );
#endif /* PSA_CRYPTO_DRIVER_TEST */
return( PSA_ERROR_NOT_SUPPORTED );
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
(void) attributes;
(void) data;
(void) data_length;
(void) bits;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_DRIVER_PRESENT */
}
psa_status_t psa_driver_wrapper_export_public_key( const psa_key_slot_t *slot,
uint8_t *data,
size_t data_size,
size_t *data_length )
{
#if 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_export_public_key( &attributes,
slot->data.key.data,
slot->data.key.bytes,
data,
data_size,
data_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_export_public_key( &attributes,
slot->data.key.data,
slot->data.key.bytes,
data,
data_size,
data_length ) );
#endif /* PSA_CRYPTO_DRIVER_TEST */
default:
/* Key is declared with a lifetime not known to us */
return( status );
}
#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
(void) slot;
(void) data;
(void) data_size;
(void) data_length;
return( PSA_ERROR_NOT_SUPPORTED );
#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
}
/*
* 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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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->data.key.data,
slot->data.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. */
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