141 lines
5.7 KiB
C
141 lines
5.7 KiB
C
/**
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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 MBEDTLS_BACKEND_HMAC_H__
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#define MBEDTLS_BACKEND_HMAC_H__
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/** @file
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*
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* @defgroup nrf_crypto_mbedtls_backend_hmac mbed TLS backend for HMAC
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* @{
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* @ingroup nrf_crypto_mbedtls_backend
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*
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* @brief Backend wrapper for mbed TLS. None of these types should be used directly by the
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* application.
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*/
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#include "sdk_common.h"
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS) && \
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( NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256) || \
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NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA512) )
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#include "nrf_crypto_hmac_shared.h"
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/*lint -save -e????*/
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#include "mbedtls/md.h"
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#include "mbedtls/sha256.h"
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#include "mbedtls/sha512.h"
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/*lint -restore*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#undef NRF_CRYPTO_HMAC_ENABLED
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#define NRF_CRYPTO_HMAC_ENABLED 1
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256)
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_HMAC_SHA256)
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#error "Duplicate definition of HMAC SHA-256. More than one backend enabled"
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#endif // NRF_CRYPTO_HMAC_SHA256_ENABLED
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#define NRF_CRYPTO_HMAC_SHA256_ENABLED 1
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/**
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* @internal @brief Internal context object used by the mbed TLS backend wrapper for HMAC SHA256.
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*
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* @note This should never be used directly. Use @ref nrf_crypto_backend_hmac_sha256_context_t
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* instead.
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*/
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typedef struct
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{
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nrf_crypto_hmac_internal_context_t header; //!< Internal nrf_crypto_hmac context.
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mbedtls_md_context_t mbedtls_ctx; //!< Mbed TLS context object.
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uint8_t md_ctx_buffer[sizeof(mbedtls_sha256_context)]; //!< Message digest buffer for mbed TLS.
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uint16_t hmac_ctx_buffer[64]; //!< Hash buffer for mbed TLS of size defined in mbedtls_sha256_info in md_internal.h.
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} nrf_crypto_backend_mbedtls_hmac_sha256_context_t;
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/**
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* @internal @brief Context for HMAC SHA256 using mbed TLS backend.
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*/
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typedef nrf_crypto_backend_mbedtls_hmac_sha256_context_t nrf_crypto_backend_hmac_sha256_context_t;
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256)
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA512)
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#if NRF_MODULE_ENABLED(NRF_CRYPTO_HMAC_SHA512)
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#error "Duplicate definition of HMAC SHA-512. More than one backend enabled"
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#endif // NRF_CRYPTO_HMAC_SHA512_ENABLED
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#define NRF_CRYPTO_HMAC_SHA512_ENABLED 1
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/**
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* @internal @brief Internal context object used by the mbed TLS backend wrapper for HMAC SHA512.
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*
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* @note This should never be used directly. Use @ref nrf_crypto_backend_hmac_sha512_context_t
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* instead.
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*/
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typedef struct
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{
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nrf_crypto_hmac_internal_context_t header; //!< Internal nrf_crypto_hmac context header.
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mbedtls_md_context_t mbedtls_ctx; //!< Mbed TLS context object.
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uint8_t md_ctx_buffer[sizeof(mbedtls_sha512_context)]; //!< Message digest buffer for mbed TLS.
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uint16_t hmac_ctx_buffer[128]; //!< Hash buffer for mbed TLS of size defined in mbedtls_sha512_info in md_internal.h.
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} nrf_crypto_backend_mbedtls_hmac_sha512_context_t;
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/**
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* @internal @brief Context for HMAC SHA512 using mbed TLS backend.
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*/
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typedef nrf_crypto_backend_mbedtls_hmac_sha512_context_t nrf_crypto_backend_hmac_sha512_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_MBEDTLS_HMAC_SHA512)
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#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS) && ( NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA512) )
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/**@} */
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#endif // MBEDTLS_BACKEND_HMAC_H__
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