170 lines
6.5 KiB
C
170 lines
6.5 KiB
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_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)
|