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xiaozhengsheng
2025-08-19 09:49:41 +08:00
parent 10f1ddf1c1
commit 6df0f7d96e
2974 changed files with 1712873 additions and 54 deletions
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components/libraries/crypto/backend/cc310/cc310_backend_rng.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)
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
#include "nrf_crypto_error.h"
#include "nrf_log.h"
#include "cc310_backend_mutex.h"
#include "cc310_backend_rng.h"
#include "crys_rnd.h"
#include "crys_rnd_error.h"
#include "cc310_backend_shared.h"
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_RND_ILLEGAL_PARAMETER_ERROR:
ret_val = NRF_ERROR_CRYPTO_INVALID_PARAM;
break;
case CRYS_RND_INIT_FAILED:
case CRYS_RND_STARTUP_FAILED:
case CRYS_RND_INSTANTIATION_ERROR:
ret_val = NRF_ERROR_CRYPTO_RNG_INIT_FAILED;
break;
case CRYS_RND_IS_NOT_SUPPORTED:
case CRYS_RND_CAN_NOT_GENERATE_RAND_IN_RANGE:
case CRYS_RND_TRNG_KAT_NOT_SUPPORTED_ERROR:
case CRYS_RND_SRAM_NOT_SUPPORTED_ERROR:
case CRYS_RND_OPERATION_IS_NOT_SUPPORTED_ERROR:
ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE;
break;
case CRYS_RND_DATA_OUT_POINTER_INVALID_ERROR:
case CRYS_RND_VECTOR_OUT_PTR_ERROR:
ret_val = NRF_ERROR_CRYPTO_OUTPUT_NULL;
break;
case CRYS_RND_ADDITIONAL_INPUT_BUFFER_NULL:
case CRYS_RND_WORK_BUFFER_PTR_INVALID_ERROR:
case CRYS_RND_ILLEGAL_DATA_PTR_ERROR:
ret_val = NRF_ERROR_CRYPTO_INPUT_NULL;
break;
case CRYS_RND_DATA_SIZE_OVERFLOW_ERROR:
case CRYS_RND_ADDITIONAL_INPUT_SIZE_ERROR:
case CRYS_RND_ILLEGAL_DATA_SIZE_ERROR:
case CRYS_RND_MAX_VECTOR_IS_TOO_SMALL_ERROR:
ret_val = NRF_ERROR_CRYPTO_INPUT_LENGTH;
break;
case CRYS_RND_ILLEGAL_AES_KEY_SIZE_ERROR:
case CRYS_RND_VECTOR_OUT_SIZE_ERROR:
case CRYS_RND_VECTOR_SIZE_ERROR:
ret_val = NRF_ERROR_CRYPTO_OUTPUT_LENGTH;
break;
case CRYS_RND_CONTEXT_PTR_INVALID_ERROR:
case CRYS_RND_STATE_PTR_INVALID_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NULL;
break;
case CRYS_RND_INSTANTIATION_NOT_DONE_ERROR:
ret_val = NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED;
break;
case CRYS_RND_RESEED_COUNTER_OVERFLOW_ERROR:
ret_val = NRF_ERROR_CRYPTO_RNG_RESEED_REQUIRED;
break;
case CRYS_RND_CPRNG_TEST_FAIL_ERROR:
case CRYS_RND_TRNG_LOSS_SAMPLES_ERROR:
case CRYS_RND_TRNG_TIME_EXCEED_ERROR:
case CRYS_RND_TRNG_LOSS_SAMPLES_AND_TIME_EXCEED_ERROR:
case CRYS_RND_IS_KAT_MODE_ERROR:
case CRYS_RND_STATE_VALIDATION_TAG_ERROR:
case CRYS_RND_GEN_VECTOR_FUNC_ERROR:
case CRYS_RND_TRNG_ERRORS_ERROR:
case CRYS_RND_KAT_DATA_PARAMS_ERROR:
case CRYS_RND_AES_ERROR:
default:
ret_val = NRF_ERROR_CRYPTO_INTERNAL;
break;
}
return ret_val;
}
ret_code_t nrf_crypto_rng_backend_init(void * const p_context,
void * const p_temp_buffer)
{
bool mutex_locked;
CRYSError_t err_code;
ret_code_t ret_val;
CRYS_RND_WorkBuff_t * p_work_buffer = (CRYS_RND_WorkBuff_t *)p_temp_buffer;
nrf_crypto_backend_rng_context_t * p_ctx = (nrf_crypto_backend_rng_context_t *)p_context;
// Save time by not reinitializing an already valid CC310 RNG context.
// (Useful for example in case the context was stored in retained memory during system OFF.)
if (p_ctx->header.init_value == NRF_CRYPTO_RNG_CONTEXT_INIT_MAGIC_VALUE)
{
return NRF_SUCCESS;
}
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
err_code = CRYS_RndInit(&p_ctx->crys_rnd_state, p_work_buffer);
ret_val = result_get(err_code);
cc310_backend_mutex_unlock();
return ret_val;
}
ret_code_t nrf_crypto_rng_backend_uninit(void * const p_context)
{
bool mutex_locked;
CRYSError_t err_code;
ret_code_t ret_val;
CRYS_RND_State_t * p_crys_rnd_state =
&((nrf_crypto_backend_rng_context_t *)p_context)->crys_rnd_state;
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
err_code = CRYS_RND_UnInstantiation(p_crys_rnd_state);
ret_val = result_get(err_code);
cc310_backend_mutex_unlock();
return ret_val;
}
ret_code_t nrf_crypto_rng_backend_vector_generate(void * const p_context,
uint8_t * const p_target,
size_t size,
bool use_mutex)
{
bool mutex_locked;
CRYSError_t err_code;
ret_code_t ret_val;
CRYS_RND_State_t * p_crys_rnd_state =
&((nrf_crypto_backend_rng_context_t *)p_context)->crys_rnd_state;
if (use_mutex)
{
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
}
err_code = CRYS_RND_GenerateVector(p_crys_rnd_state, size, p_target);
ret_val = result_get(err_code);
if (use_mutex)
{
cc310_backend_mutex_unlock();
}
return ret_val;
}
ret_code_t nrf_crypto_rng_backend_reseed(void * const p_context,
void * p_temp_buffer,
uint8_t * p_input_data,
size_t size)
{
bool mutex_locked;
CRYSError_t err_code;
ret_code_t ret_val = NRF_SUCCESS;
CRYS_RND_WorkBuff_t * p_work_buffer = (CRYS_RND_WorkBuff_t *)p_temp_buffer;
CRYS_RND_State_t * p_crys_rnd_state =
&((nrf_crypto_backend_rng_context_t *)p_context)->crys_rnd_state;
VERIFY_TRUE(size <= CRYS_RND_ADDITINAL_INPUT_MAX_SIZE_WORDS, NRF_ERROR_CRYPTO_INPUT_LENGTH);
VERIFY_TRUE((size & 0x3) == 0, NRF_ERROR_CRYPTO_INTERNAL);
mutex_locked = cc310_backend_mutex_trylock();
VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY);
if (size > 0)
{
err_code = CRYS_RND_AddAdditionalInput(p_crys_rnd_state, p_input_data, size);
ret_val = result_get(err_code);
if (ret_val != NRF_SUCCESS)
{
goto exit;
}
}
err_code = CRYS_RND_Reseeding(p_crys_rnd_state, p_work_buffer);
ret_val = result_get(err_code);
exit:
cc310_backend_mutex_unlock();
return ret_val;
}
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO)