912 lines
36 KiB
C
912 lines
36 KiB
C
/*
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* Functions to delegate cryptographic operations to an available
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* and appropriate accelerator.
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* Warning: This file will be auto-generated in the future.
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*/
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/* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "psa_crypto_core.h"
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#include "psa_crypto_driver_wrappers.h"
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#include "mbedtls/platform.h"
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#if defined(MBEDTLS_PSA_CRYPTO_DRIVERS)
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/* Include test driver definition when running tests */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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#ifndef PSA_CRYPTO_DRIVER_PRESENT
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#define PSA_CRYPTO_DRIVER_PRESENT
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#endif
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#ifndef PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT
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#define PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT
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#endif
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#include "test/drivers/test_driver.h"
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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/* Repeat above block for each JSON-declared driver during autogeneration */
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/* Auto-generated values depending on which drivers are registered. ID 0 is
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* reserved for unallocated operations. */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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#define PSA_CRYPTO_TRANSPARENT_TEST_DRIVER_ID (1)
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#define PSA_CRYPTO_OPAQUE_TEST_DRIVER_ID (2)
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS */
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/* Support the 'old' SE interface when asked to */
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#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
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/* PSA_CRYPTO_DRIVER_PRESENT is defined when either a new-style or old-style
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* SE driver is present, to avoid unused argument errors at compile time. */
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#ifndef PSA_CRYPTO_DRIVER_PRESENT
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#define PSA_CRYPTO_DRIVER_PRESENT
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#endif
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#include "psa_crypto_se.h"
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#endif
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/* Start delegation functions */
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psa_status_t psa_driver_wrapper_sign_hash( psa_key_slot_t *slot,
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psa_algorithm_t alg,
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const uint8_t *hash,
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size_t hash_length,
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uint8_t *signature,
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size_t signature_size,
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size_t *signature_length )
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{
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#if defined(PSA_CRYPTO_DRIVER_PRESENT)
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/* Try dynamically-registered SE interface first */
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#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
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const psa_drv_se_t *drv;
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psa_drv_se_context_t *drv_context;
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if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
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{
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if( drv->asymmetric == NULL ||
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drv->asymmetric->p_sign == NULL )
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{
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/* Key is defined in SE, but we have no way to exercise it */
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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return( drv->asymmetric->p_sign( drv_context,
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slot->data.se.slot_number,
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alg,
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hash, hash_length,
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signature, signature_size,
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signature_length ) );
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}
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#endif /* PSA_CRYPTO_SE_C */
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/* Then try accelerator API */
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#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
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psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
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psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
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psa_key_attributes_t attributes = {
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.core = slot->attr
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};
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switch( location )
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{
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case PSA_KEY_LOCATION_LOCAL_STORAGE:
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/* Key is stored in the slot in export representation, so
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* cycle through all known transparent accelerators */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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status = test_transparent_signature_sign_hash( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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hash,
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hash_length,
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signature,
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signature_size,
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signature_length );
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/* Declared with fallback == true */
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if( status != PSA_ERROR_NOT_SUPPORTED )
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return( status );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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/* Fell through, meaning no accelerator supports this operation */
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return( PSA_ERROR_NOT_SUPPORTED );
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/* Add cases for opaque driver here */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
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return( test_opaque_signature_sign_hash( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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hash,
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hash_length,
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signature,
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signature_size,
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signature_length ) );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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default:
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/* Key is declared with a lifetime not known to us */
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return( status );
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}
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#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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#else /* PSA_CRYPTO_DRIVER_PRESENT */
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(void)slot;
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(void)alg;
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(void)hash;
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(void)hash_length;
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(void)signature;
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(void)signature_size;
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(void)signature_length;
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_DRIVER_PRESENT */
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}
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psa_status_t psa_driver_wrapper_verify_hash( psa_key_slot_t *slot,
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psa_algorithm_t alg,
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const uint8_t *hash,
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size_t hash_length,
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const uint8_t *signature,
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size_t signature_length )
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{
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#if defined(PSA_CRYPTO_DRIVER_PRESENT)
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/* Try dynamically-registered SE interface first */
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#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
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const psa_drv_se_t *drv;
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psa_drv_se_context_t *drv_context;
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if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
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{
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if( drv->asymmetric == NULL ||
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drv->asymmetric->p_verify == NULL )
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{
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/* Key is defined in SE, but we have no way to exercise it */
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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return( drv->asymmetric->p_verify( drv_context,
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slot->data.se.slot_number,
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alg,
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hash, hash_length,
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signature, signature_length ) );
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}
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#endif /* PSA_CRYPTO_SE_C */
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/* Then try accelerator API */
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#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
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psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
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psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
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psa_key_attributes_t attributes = {
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.core = slot->attr
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};
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switch( location )
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{
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case PSA_KEY_LOCATION_LOCAL_STORAGE:
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/* Key is stored in the slot in export representation, so
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* cycle through all known transparent accelerators */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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status = test_transparent_signature_verify_hash( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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hash,
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hash_length,
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signature,
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signature_length );
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/* Declared with fallback == true */
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if( status != PSA_ERROR_NOT_SUPPORTED )
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return( status );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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/* Fell through, meaning no accelerator supports this operation */
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return( PSA_ERROR_NOT_SUPPORTED );
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/* Add cases for opaque driver here */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
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return( test_opaque_signature_verify_hash( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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hash,
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hash_length,
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signature,
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signature_length ) );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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default:
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/* Key is declared with a lifetime not known to us */
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return( status );
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}
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#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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#else /* PSA_CRYPTO_DRIVER_PRESENT */
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(void)slot;
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(void)alg;
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(void)hash;
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(void)hash_length;
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(void)signature;
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(void)signature_length;
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_DRIVER_PRESENT */
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}
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#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
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/** Calculate the size to allocate for buffering a key with given attributes.
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*
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* This function provides a way to get the expected size for storing a key with
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* the given attributes. This will be the size of the export representation for
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* cleartext keys, and a driver-defined size for keys stored by opaque drivers.
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*
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* \param[in] attributes The key attribute structure of the key to store.
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* \param[out] expected_size On success, a byte size large enough to contain
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* the declared key.
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*
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* \retval #PSA_SUCCESS
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* \retval #PSA_ERROR_NOT_SUPPORTED
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*/
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static psa_status_t get_expected_key_size( const psa_key_attributes_t *attributes,
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size_t *expected_size )
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{
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size_t buffer_size = 0;
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psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( attributes->core.lifetime );
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psa_key_type_t key_type = attributes->core.type;
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size_t key_bits = attributes->core.bits;
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switch( location )
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{
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case PSA_KEY_LOCATION_LOCAL_STORAGE:
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buffer_size = PSA_KEY_EXPORT_MAX_SIZE( key_type, key_bits );
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if( buffer_size == 0 )
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return( PSA_ERROR_NOT_SUPPORTED );
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*expected_size = buffer_size;
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return( PSA_SUCCESS );
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
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#ifdef TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION
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*expected_size = test_size_function( key_type, key_bits );
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return( PSA_SUCCESS );
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#else /* TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION */
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if( PSA_KEY_TYPE_IS_KEY_PAIR( key_type ) )
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{
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int public_key_overhead = ( ( TEST_DRIVER_KEY_CONTEXT_STORE_PUBLIC_KEY == 1 ) ?
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PSA_KEY_EXPORT_MAX_SIZE( key_type, key_bits ) : 0 );
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*expected_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
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+ TEST_DRIVER_KEY_CONTEXT_PUBLIC_KEY_SIZE
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+ public_key_overhead;
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}
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else if( PSA_KEY_TYPE_IS_PUBLIC_KEY( attributes->core.type ) )
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{
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*expected_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
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+ TEST_DRIVER_KEY_CONTEXT_PUBLIC_KEY_SIZE;
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}
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else if ( !PSA_KEY_TYPE_IS_KEY_PAIR( key_type ) &&
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!PSA_KEY_TYPE_IS_PUBLIC_KEY ( attributes->core.type ) )
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{
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*expected_size = TEST_DRIVER_KEY_CONTEXT_BASE_SIZE
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+ TEST_DRIVER_KEY_CONTEXT_SYMMETRIC_FACTOR
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* ( ( key_bits + 7 ) / 8 );
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}
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else
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{
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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return( PSA_SUCCESS );
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#endif /* TEST_DRIVER_KEY_CONTEXT_SIZE_FUNCTION */
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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default:
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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}
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#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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psa_status_t psa_driver_wrapper_generate_key( const psa_key_attributes_t *attributes,
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psa_key_slot_t *slot )
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{
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#if defined(PSA_CRYPTO_DRIVER_PRESENT)
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/* Try dynamically-registered SE interface first */
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#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
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const psa_drv_se_t *drv;
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psa_drv_se_context_t *drv_context;
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if( psa_get_se_driver( slot->attr.lifetime, &drv, &drv_context ) )
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{
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size_t pubkey_length = 0; /* We don't support this feature yet */
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if( drv->key_management == NULL ||
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drv->key_management->p_generate == NULL )
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{
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/* Key is defined as being in SE, but we have no way to generate it */
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return( PSA_ERROR_NOT_SUPPORTED );
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}
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return( drv->key_management->p_generate(
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drv_context,
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slot->data.se.slot_number, attributes,
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NULL, 0, &pubkey_length ) );
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}
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#endif /* MBEDTLS_PSA_CRYPTO_SE_C */
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/* Then try accelerator API */
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#if defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
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psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
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psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
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size_t export_size = 0;
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status = get_expected_key_size( attributes, &export_size );
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if( status != PSA_SUCCESS )
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return( status );
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slot->data.key.data = mbedtls_calloc(1, export_size);
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if( slot->data.key.data == NULL )
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return( PSA_ERROR_INSUFFICIENT_MEMORY );
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slot->data.key.bytes = export_size;
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switch( location )
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{
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case PSA_KEY_LOCATION_LOCAL_STORAGE:
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/* Key is stored in the slot in export representation, so
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* cycle through all known transparent accelerators */
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/* Transparent drivers are limited to generating asymmetric keys */
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if( ! PSA_KEY_TYPE_IS_ASYMMETRIC( slot->attr.type ) )
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{
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status = PSA_ERROR_NOT_SUPPORTED;
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break;
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}
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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status = test_transparent_generate_key( attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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&slot->data.key.bytes );
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/* Declared with fallback == true */
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if( status != PSA_ERROR_NOT_SUPPORTED )
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break;
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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/* Fell through, meaning no accelerator supports this operation */
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status = PSA_ERROR_NOT_SUPPORTED;
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break;
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/* Add cases for opaque driver here */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
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status = test_opaque_generate_key( attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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&slot->data.key.bytes );
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break;
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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default:
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/* Key is declared with a lifetime not known to us */
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status = PSA_ERROR_INVALID_ARGUMENT;
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break;
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}
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if( status != PSA_SUCCESS )
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{
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/* free allocated buffer */
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mbedtls_free( slot->data.key.data );
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slot->data.key.data = NULL;
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slot->data.key.bytes = 0;
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}
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return( status );
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#else /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT */
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#else /* PSA_CRYPTO_DRIVER_PRESENT */
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(void) attributes;
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(void) slot;
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_DRIVER_PRESENT */
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}
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/*
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* Cipher functions
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*/
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psa_status_t psa_driver_wrapper_cipher_encrypt(
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psa_key_slot_t *slot,
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psa_algorithm_t alg,
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const uint8_t *input,
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size_t input_length,
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uint8_t *output,
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size_t output_size,
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size_t *output_length )
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{
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#if defined(PSA_CRYPTO_DRIVER_PRESENT) && defined(PSA_CRYPTO_ACCELERATOR_DRIVER_PRESENT)
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psa_status_t status = PSA_ERROR_INVALID_ARGUMENT;
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psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION(slot->attr.lifetime);
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psa_key_attributes_t attributes = {
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.core = slot->attr
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};
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switch( location )
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{
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case PSA_KEY_LOCATION_LOCAL_STORAGE:
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/* Key is stored in the slot in export representation, so
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* cycle through all known transparent accelerators */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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status = test_transparent_cipher_encrypt( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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input,
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input_length,
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output,
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output_size,
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output_length );
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/* Declared with fallback == true */
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if( status != PSA_ERROR_NOT_SUPPORTED )
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return( status );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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/* Fell through, meaning no accelerator supports this operation */
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return( PSA_ERROR_NOT_SUPPORTED );
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/* Add cases for opaque driver here */
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#if defined(PSA_CRYPTO_DRIVER_TEST)
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case PSA_CRYPTO_TEST_DRIVER_LIFETIME:
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return( test_opaque_cipher_encrypt( &attributes,
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slot->data.key.data,
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slot->data.key.bytes,
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alg,
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input,
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input_length,
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output,
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output_size,
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output_length ) );
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#endif /* PSA_CRYPTO_DRIVER_TEST */
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default:
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/* Key is declared with a lifetime not known to us */
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return( status );
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}
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#else /* PSA_CRYPTO_DRIVER_PRESENT */
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(void) slot;
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(void) alg;
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(void) input;
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(void) input_length;
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(void) output;
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(void) output_size;
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(void) output_length;
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return( PSA_ERROR_NOT_SUPPORTED );
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#endif /* PSA_CRYPTO_DRIVER_PRESENT */
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|
}
|
|
|
|
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. */
|