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xiaozhengsheng
2025-08-19 09:49:41 +08:00
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components/libraries/crypto/backend/oberon/oberon_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_OBERON)
#include "nrf_log.h"
#include "nrf_crypto_error.h"
#include "nrf_crypto_types.h"
#include "oberon_backend_hmac.h"
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256)
#define HMAC_SHA256_BLOCK_SIZE 64
static ret_code_t oberon_backend_hmac_init_sha256(void * const p_context,
uint8_t const * p_key,
size_t key_size)
{
nrf_crypto_backend_oberon_hmac_sha256_context_t * p_ctx =
(nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context;
ocrypto_hmac_sha256_init(&p_ctx->oberon_ctx, p_key, key_size);
return NRF_SUCCESS;
}
static ret_code_t oberon_backend_hmac_update_sha256(void * const p_context,
uint8_t const * p_data,
size_t size)
{
nrf_crypto_backend_oberon_hmac_sha256_context_t * p_ctx =
(nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context;
ocrypto_hmac_sha256_update(&p_ctx->oberon_ctx, p_data, size);
return NRF_SUCCESS;
}
static ret_code_t oberon_backend_hmac_finalize_sha256(void * const p_context,
uint8_t * p_digest,
size_t * const p_size)
{
nrf_crypto_backend_oberon_hmac_sha256_context_t * const p_ctx =
(nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context;
ocrypto_hmac_sha256_final(&p_ctx->oberon_ctx, p_digest);
// Assume operation was successful and update the digest size accordingly.
*p_size = p_ctx->header.p_info->digest_size;
return NRF_SUCCESS;
}
// Information structure for HMAC SHA256 using Oberon backend.
const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha256_info =
{
.init_fn = oberon_backend_hmac_init_sha256,
.update_fn = oberon_backend_hmac_update_sha256,
.finalize_fn = oberon_backend_hmac_finalize_sha256,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA256,
.context_size = sizeof(nrf_crypto_backend_oberon_hmac_sha256_context_t),
.type = NRF_CRYPTO_HMAC_SHA256_TYPE
};
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256)
#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512)
#define HMAC_SHA512_BLOCK_SIZE 128
static ret_code_t oberon_backend_hmac_init_sha512(void * const p_context,
uint8_t const * p_key,
size_t key_size)
{
nrf_crypto_backend_oberon_hmac_sha512_context_t * p_ctx =
(nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context;
ocrypto_hmac_sha512_init(&p_ctx->oberon_ctx, p_key, key_size);
return NRF_SUCCESS;
}
static ret_code_t oberon_backend_hmac_update_sha512(void * const p_context,
uint8_t const * p_data,
size_t size)
{
nrf_crypto_backend_oberon_hmac_sha512_context_t * p_ctx =
(nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context;
ocrypto_hmac_sha512_update(&p_ctx->oberon_ctx, p_data, size);
return NRF_SUCCESS;
}
static ret_code_t oberon_backend_hmac_finalize_sha512(void * const p_context,
uint8_t * p_digest,
size_t * const p_size)
{
nrf_crypto_backend_oberon_hmac_sha512_context_t * const p_ctx =
(nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context;
ocrypto_hmac_sha512_final(&p_ctx->oberon_ctx, p_digest);
// Assume operation was successful and update the digest size accordingly.
*p_size = p_ctx->header.p_info->digest_size;
return NRF_SUCCESS;
}
// Information structure for HMAC SHA512 using Oberon backend.
const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha512_info =
{
.init_fn = oberon_backend_hmac_init_sha512,
.update_fn = oberon_backend_hmac_update_sha512,
.finalize_fn = oberon_backend_hmac_finalize_sha512,
.digest_size = NRF_CRYPTO_HASH_SIZE_SHA512,
.context_size = sizeof(nrf_crypto_backend_oberon_hmac_sha512_context_t),
.type = NRF_CRYPTO_HMAC_SHA512_TYPE
};
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512)
#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)