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xiaozhengsheng
139
components/libraries/crypto/backend/nrf_sw/nrf_sw_backend_hash.c
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139
components/libraries/crypto/backend/nrf_sw/nrf_sw_backend_hash.c
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/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW)
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#include "nrf_sw_backend_hash.h"
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#include "sha256.h"
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#include "nrf_crypto_types.h"
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#include "nrf_crypto_error.h"
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#include "nrf_crypto_hash_shared.h"
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#include "sdk_macros.h"
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#include "nrf_log.h"
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#include "nrf_assert.h"
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#if defined(NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED)
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#error The configuration NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED was removed in SDK 15.1.0. Please see release notes for details on removing this error message.
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#endif
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static ret_code_t nrf_sw_backend_hash_sha256_init(void * const p_context)
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{
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ret_code_t ret_val;
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// No parameter testing on this level.
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// This has been done on upper level.
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sha256_context_t * p_backend_context
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= &(((nrf_crypto_backend_hash_sha256_context_t *) p_context)->context);
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ret_val = sha256_init(p_backend_context);
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return ret_val;
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}
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static uint32_t nrf_sw_backend_hash_sha256_update(void * const p_context,
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uint8_t const * p_data,
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size_t len)
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{
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ret_code_t ret_val;
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// Limited parameter testing on this level.
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// This has been done on upper level.
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sha256_context_t * p_backend_context
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= &(((nrf_crypto_backend_hash_sha256_context_t * ) p_context)->context);
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ret_val = sha256_update(p_backend_context, p_data, len);
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return ret_val;
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}
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static uint32_t nrf_sw_backend_hash_sha256_finalize(void * const p_context,
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uint8_t * p_digest,
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size_t * const p_digest_len)
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{
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ret_code_t ret_val;
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// Limited parameter testing on this level.
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// This has been done on upper level.
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sha256_context_t * p_backend_context
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= &(((nrf_crypto_backend_hash_sha256_context_t * )p_context)->context);
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if (NRF_CRYPTO_HASH_SIZE_SHA256 > *p_digest_len)
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{
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return NRF_ERROR_CRYPTO_OUTPUT_LENGTH;
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}
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ret_val = sha256_final(p_backend_context, p_digest, false);
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if (ret_val != NRF_SUCCESS)
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{
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return ret_val;
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}
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*p_digest_len = NRF_CRYPTO_HASH_SIZE_SHA256;
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return NRF_SUCCESS;
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}
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const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha256_info =
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{
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.init_fn = nrf_sw_backend_hash_sha256_init,
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.update_fn = nrf_sw_backend_hash_sha256_update,
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.finalize_fn = nrf_sw_backend_hash_sha256_finalize,
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.digest_size = NRF_CRYPTO_HASH_SIZE_SHA256,
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.context_size = sizeof(nrf_crypto_backend_hash_sha256_context_t),
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.hash_mode = NRF_CRYPTO_HASH_MODE_SHA256
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};
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW)
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@@ -0,0 +1,99 @@
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/**
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* Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
|
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef NRF_SW_BACKEND_HASH_H__
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#define NRF_SW_BACKEND_HASH_H__
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/** @file
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*
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* @defgroup nrf_crypto_nrf_sw_backend_hash nrf_crypto nRF SW backend hash
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* @{
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* @ingroup nrf_crypto_nrf_sw_backend
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*
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* @brief Legacy hash functionality for bootloader use in nRFx devices
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW)
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#include "sha256.h"
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#include "nrf_crypto_error.h"
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#include "nrf_crypto_types.h"
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#include "nrf_crypto_hash_shared.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW_HASH_SHA256)
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// Flag that nrf_crypto_hash frontend can be compiled
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#undef NRF_CRYPTO_HASH_ENABLED
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#define NRF_CRYPTO_HASH_ENABLED 1
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// Duplicate backend enabled test for SHA-256
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_HASH_SHA256)
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#error "Duplicate definition of SHA-256. More than one backend enabled");
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#endif
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// Flag that SHA-256 is enabled in backend
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#define NRF_CRYPTO_HASH_SHA256_ENABLED 1
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW_HASH_SHA256)
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/**@brief nrf_crypto_hash context for SHA-256 in nrf_crypto nrf_sw backend. */
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typedef struct
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{
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nrf_crypto_hash_internal_context_t header; /**< Common header for context. */
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sha256_context_t context; /**< Hash context internal to nrf_sw. */
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} nrf_crypto_backend_hash_sha256_context_t;
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#ifdef __cplusplus
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}
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#endif
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW)
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/**@} */
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#endif // NRF_SW_BACKEND_HASH_H__
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