xiaozhengsheng 6df0f7d96e 初始版本
2025-08-19 09:49:41 +08:00

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C

/**
* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "sdk_common.h"
#if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
#include "nrf.h"
#include "cc310_backend_hash.h"
#include "crys_hash.h"
#include "crys_hash_error.h"
#include "nrf_crypto_init.h"
#include "nrf_crypto_types.h"
#include "nrf_crypto_error.h"
#include "nrf_crypto_hash_shared.h"
#include "sdk_macros.h"
#include "nrf_log.h"
#include "nrf_assert.h"
#include "cc310_backend_mutex.h"
#include "cc310_backend_shared.h"
#include <drivers/nrfx_common.h>
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) || \
NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512)
static ret_code_t hash_result_get(CRYSError_t error)
{
ret_code_t ret_val;
switch (error)
{
case CRYS_OK:
ret_val = NRF_SUCCESS;
break;
case CRYS_HASH_INVALID_USER_CONTEXT_POINTER_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NULL;
break;
case CRYS_HASH_ILLEGAL_OPERATION_MODE_ERROR:
ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE;
break;
case CRYS_HASH_USER_CONTEXT_CORRUPTED_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED;
break;
// May be added to specialized errors for hash.
case CRYS_HASH_LAST_BLOCK_ALREADY_PROCESSED_ERROR:
ret_val = NRF_ERROR_CRYPTO_INTERNAL;
break;
case CRYS_HASH_IS_NOT_SUPPORTED:
ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE;
break;
default:
ret_val = NRF_ERROR_CRYPTO_INTERNAL;
break;
}
return ret_val;
}
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256)
static ret_code_t cc310_backend_hash_sha256_init(void * const p_context)
{
uint32_t ret_val;
CRYSError_t crys_error;
CRYS_HASH_OperationMode_t hash_mode = CRYS_HASH_SHA256_mode;
// No parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha256_context_t *)p_context)->context);
crys_error = CRYS_HASH_Init(p_backend_context, hash_mode);
ret_val = hash_result_get(crys_error);
return ret_val;
}
static ret_code_t cc310_backend_hash_sha256_update(void * const p_context,
uint8_t const * p_data,
size_t size)
{
ret_code_t ret_val;
CRYSError_t crys_error;
bool mutex_locked;
size_t cur_len;
size_t len_left = size;
uint8_t const * p_cur = p_data;
// Limited parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha256_context_t *)p_context)->context);
// Data in flash could lead to silently calculating wrong Hash.
VERIFY_TRUE(nrfx_is_in_ram(p_data), NRF_ERROR_CRYPTO_INPUT_LOCATION);
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
// If the input is larger than CC310_MAX_LENGTH_DMA_OPERATIONS, split into smaller
do
{
cur_len = (len_left > CC310_MAX_LENGTH_DMA_OPERATIONS) ?
CC310_MAX_LENGTH_DMA_OPERATIONS : len_left;
crys_error = CRYS_HASH_Update(p_backend_context, (uint8_t *)p_cur, cur_len);
len_left -= cur_len;
p_cur += cur_len;
} while (crys_error == CRYS_OK && len_left > 0);
cc310_backend_mutex_unlock();
ret_val = hash_result_get(crys_error);
return ret_val;
}
static ret_code_t cc310_backend_hash_sha256_finalize(void * const p_context,
uint8_t * p_digest,
size_t * const p_digest_size)
{
ret_code_t ret_val;
CRYSError_t crys_error;
bool mutex_locked;
CRYS_HASH_Result_t * p_int_digest = (CRYS_HASH_Result_t *)p_digest;
// Limited parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha256_context_t * )p_context)->context);
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
// Do the hash finalize calculation
crys_error = CRYS_HASH_Finish(p_backend_context, *p_int_digest);
cc310_backend_mutex_unlock();
ret_val = hash_result_get(crys_error);
if (ret_val == NRF_SUCCESS)
{
*p_digest_size = NRF_CRYPTO_HASH_SIZE_SHA256;
}
return ret_val;
}
const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha256_info =
{
.init_fn = cc310_backend_hash_sha256_init,
.update_fn = cc310_backend_hash_sha256_update,
.finalize_fn = cc310_backend_hash_sha256_finalize,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA256,
.context_size = sizeof(nrf_crypto_backend_hash_sha256_context_t),
.hash_mode = NRF_CRYPTO_HASH_MODE_SHA256
};
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256)
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512)
// SHA-512 does not use CC310 hardware and therefore will not use a mutex lock
static ret_code_t cc310_backend_hash_sha512_init(void * p_context)
{
uint32_t ret_val;
CRYSError_t crys_error;
CRYS_HASH_OperationMode_t hash_mode = CRYS_HASH_SHA512_mode;
// No parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha512_context_t * ) p_context)->context);
crys_error = CRYS_HASH_Init(p_backend_context, hash_mode);
ret_val = hash_result_get(crys_error);
return ret_val;
}
static ret_code_t cc310_backend_hash_sha512_update(void * const p_context,
uint8_t const * p_data,
size_t size)
{
ret_code_t ret_val;
CRYSError_t crys_error;
// Limited parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha512_context_t *)p_context)->context);
// Data in flash could lead to silently calculating wrong Hash.
VERIFY_TRUE(nrfx_is_in_ram(p_data), NRF_ERROR_CRYPTO_INPUT_LOCATION);
crys_error = CRYS_HASH_Update(p_backend_context, (uint8_t *)p_data, size);
ret_val = hash_result_get(crys_error);
return ret_val;
}
static ret_code_t cc310_backend_hash_sha512_finalize(void * const p_context,
uint8_t * p_digest,
size_t * const p_digest_size)
{
ret_code_t ret_val;
CRYSError_t crys_error;
CRYS_HASH_Result_t * p_int_digest = (CRYS_HASH_Result_t *)p_digest;
// Limited parameter testing on this level.
// This has been done on upper level.
CRYS_HASHUserContext_t * const p_backend_context
= &(((nrf_crypto_backend_hash_sha512_context_t *) p_context)->context);
crys_error = CRYS_HASH_Finish(p_backend_context, *p_int_digest);
ret_val = hash_result_get(crys_error);
if (ret_val == NRF_SUCCESS)
{
*p_digest_size = NRF_CRYPTO_HASH_SIZE_SHA512;
}
return ret_val;
}
const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha512_info =
{
.init_fn = cc310_backend_hash_sha512_init,
.update_fn = cc310_backend_hash_sha512_update,
.finalize_fn = cc310_backend_hash_sha512_finalize,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA512,
.context_size = sizeof(nrf_crypto_backend_hash_sha512_context_t),
.hash_mode = NRF_CRYPTO_HASH_MODE_SHA512
};
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)