/**
 * Copyright (c) 2018 - 2018, Nordic Semiconductor ASA
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 * are permitted provided that the following conditions are met:
 * 
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 *    list of conditions and the following disclaimer.
 * 
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 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
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 *    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.
 * 
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 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 */

#ifndef OBERON_BACKEND_HMAC_H__
#define OBERON_BACKEND_HMAC_H__

/** @file
 *
 * @defgroup nrf_crypto_oberon_backend_hmac Oberon backend for HMAC
 * @{
 * @ingroup nrf_crypto_oberon_backend
 *
 * @brief Backend wrapper for Oberon. None of these types should be used directly by the
 * application.
 */

#include "sdk_common.h"

#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON) &&                    \
        ( NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256) || \
          NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512) )

#include "nrf_crypto_hmac_shared.h"
#include "occ_hmac_sha256.h"
#include "occ_hmac_sha512.h"

#ifdef __cplusplus
extern "C" {
#endif

#undef  NRF_CRYPTO_HMAC_ENABLED
#define NRF_CRYPTO_HMAC_ENABLED 1


#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_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 Oberon 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.
    occ_hmac_sha256_ctx                 oberon_ctx; //!< Oberon context object.
} nrf_crypto_backend_oberon_hmac_sha256_context_t;


/**
 * @internal @brief Context for HMAC SHA256 using Oberon backend.
 */
typedef nrf_crypto_backend_oberon_hmac_sha256_context_t nrf_crypto_backend_hmac_sha256_context_t;


#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256)


#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_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 Oberon 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.
    occ_hmac_sha512_ctx                 oberon_ctx; //!< Oberon context object.
} nrf_crypto_backend_oberon_hmac_sha512_context_t;

/**
 * @internal @brief Context for HMAC SHA512 using Oberon backend.
 */
typedef nrf_crypto_backend_oberon_hmac_sha512_context_t nrf_crypto_backend_hmac_sha512_context_t;


#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512)

#ifdef __cplusplus
}
#endif

#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON && ( NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256 || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512) )

/**@} */

#endif // OBERON_BACKEND_HMAC_H__