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xiaozhengsheng
2025-08-19 09:49:41 +08:00
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commit 6df0f7d96e
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components/libraries/crypto/backend/cc310/cc310_backend_hmac.c Normal file
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/**
* 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 "sdk_common.h"
#include "nrf_log.h"
#include "nrf_crypto_hmac_shared.h"
#include "cc310_backend_hmac.h"
#include "nrf_crypto_error.h"
#include "nrf_crypto_types.h"
#include <drivers/nrfx_common.h>
#include "crys_hmac.h"
#include "crys_hmac_defs.h"
#include "crys_hmac_error.h"
#include "crys_hash.h"
#include "cc310_backend_mutex.h"
#include "cc310_backend_shared.h"
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA256) || \
NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA512)
static ret_code_t result_get(CRYSError_t err_code)
{
ret_code_t ret_val;
switch (err_code)
{
case CRYS_OK:
ret_val = NRF_SUCCESS;
break;
case CRYS_HMAC_INVALID_USER_CONTEXT_POINTER_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NULL;
break;
case CRYS_HMAC_USER_CONTEXT_CORRUPTED_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED;
break;
case CRYS_HMAC_DATA_IN_POINTER_INVALID_ERROR:
case CRYS_HMAC_INVALID_KEY_POINTER_ERROR:
ret_val = NRF_ERROR_CRYPTO_INPUT_NULL;
break;
case CRYS_HMAC_INVALID_RESULT_BUFFER_POINTER_ERROR:
ret_val = NRF_ERROR_CRYPTO_OUTPUT_NULL;
break;
case CRYS_HMAC_ILLEGAL_PARAMS_ERROR:
ret_val = NRF_ERROR_CRYPTO_INVALID_PARAM;
break;
case CRYS_HMAC_UNVALID_KEY_SIZE_ERROR:
case CRYS_HMAC_DATA_SIZE_ILLEGAL:
ret_val = NRF_ERROR_CRYPTO_INPUT_LENGTH;
break;
case CRYS_HMAC_ILLEGAL_OPERATION_MODE_ERROR:
case CRYS_HMAC_LAST_BLOCK_ALREADY_PROCESSED_ERROR:
case CRYS_HMAC_IS_NOT_SUPPORTED:
case CRYS_HMAC_CTX_SIZES_ERROR:
default:
ret_val = NRF_ERROR_CRYPTO_INTERNAL;
break;
}
return ret_val;
}
static ret_code_t cc310_backend_hmac_init(void * const p_context,
uint8_t const * p_key,
size_t key_size)
{
CRYSError_t err_code;
CRYS_HASH_OperationMode_t hash_mode;
ret_code_t ret_val;
bool mutex_locked;
nrf_crypto_backend_cc310_hmac_context_t * p_ctx =
(nrf_crypto_backend_cc310_hmac_context_t *)p_context;
switch (p_ctx->header.p_info->type)
{
case NRF_CRYPTO_HMAC_SHA256_TYPE:
{
hash_mode = CRYS_HASH_SHA256_mode;
} break;
case NRF_CRYPTO_HMAC_SHA512_TYPE:
{
hash_mode = CRYS_HASH_SHA512_mode;
} break;
default:
{
NRF_LOG_ERROR("Hash algorithm not supported by CC310 backend wrapper");
return NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE;
}
}
// Key in flash could lead to silently calculating wrong HMAC.
VERIFY_TRUE(nrfx_is_in_ram(p_key), NRF_ERROR_CRYPTO_INPUT_LOCATION);
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
err_code = CRYS_HMAC_Init(&p_ctx->crys_context, hash_mode, (uint8_t *)p_key, key_size);
cc310_backend_mutex_unlock();
ret_val = result_get(err_code);
return ret_val;
}
static ret_code_t cc310_backend_hmac_update(void * const p_context,
uint8_t const * p_data,
size_t size)
{
CRYSError_t err_code;
ret_code_t ret_val;
bool mutex_locked;
size_t cur_len;
size_t len_left = size;
uint8_t const * p_cur = p_data;
nrf_crypto_backend_cc310_hmac_context_t * p_ctx =
(nrf_crypto_backend_cc310_hmac_context_t *)p_context;
// Data in flash could lead to silently calculating wrong HMAC.
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;
err_code = CRYS_HMAC_Update(&p_ctx->crys_context, (uint8_t *)p_cur, cur_len);
len_left -= cur_len;
p_cur += cur_len;
} while (err_code == CRYS_OK && len_left > 0);
cc310_backend_mutex_unlock();
ret_val = result_get(err_code);
return ret_val;
}
static ret_code_t cc310_backend_hmac_finalize(void * const p_context,
uint8_t * p_digest,
size_t * const p_size)
{
CRYSError_t err_code;
ret_code_t ret_val;
bool mutex_locked;
CRYS_HASH_Result_t * p_int_digest = (CRYS_HASH_Result_t *)p_digest;
nrf_crypto_backend_cc310_hmac_context_t * p_ctx =
(nrf_crypto_backend_cc310_hmac_context_t *)p_context;
// Set the digest length to 0 so that this is used in case of any error.
*p_size = 0;
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
err_code = CRYS_HMAC_Finish(&p_ctx->crys_context, *p_int_digest);
cc310_backend_mutex_unlock();
ret_val = result_get(err_code);
if (err_code != NRF_SUCCESS)
{
return ret_val;
}
*p_size = p_ctx->header.p_info->digest_size;
return ret_val;
}
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA256)
// Information structure for HMAC SHA256 using CC310 backend.
const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha256_info =
{
.init_fn = cc310_backend_hmac_init,
.update_fn = cc310_backend_hmac_update,
.finalize_fn = cc310_backend_hmac_finalize,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA256,
.context_size = sizeof(nrf_crypto_backend_hmac_sha256_context_t),
.type = NRF_CRYPTO_HMAC_SHA256_TYPE,
};
#endif // NRF_CRYPTO_BACKEND_CC310_HMAC_SHA256_ENABLED
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA512)
// Information structure for HMAC SHA512 using CC310 backend.
const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha512_info =
{
.init_fn = cc310_backend_hmac_init,
.update_fn = cc310_backend_hmac_update,
.finalize_fn = cc310_backend_hmac_finalize,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA512,
.context_size = sizeof(nrf_crypto_backend_hmac_sha512_context_t),
.type = NRF_CRYPTO_HMAC_SHA512_TYPE,
};
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA512)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA256) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HMAC_SHA512)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)