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