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 *    software without specific prior written permission.
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#ifndef OBERON_BACKEND_HASH_H__
#define OBERON_BACKEND_HASH_H__

/** @file
 *
 * @defgroup nrf_crypto_oberon_backend_hash Oberon backend hash
 * @{
 * @ingroup nrf_crypto_oberon_backend
 *
 * @brief Hash functionality provided by the Oberon nrf_crypto backend.
 */
#include "sdk_common.h"

#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)

#include "sdk_errors.h"
#include "nrf_crypto_hash_shared.h"
#include "occ_sha256.h"
#include "occ_sha512.h"

#ifdef __cplusplus
extern "C" {
#endif

#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HASH_SHA256)

// Flag that nrf_crypto_hash frontend can be compiled
#undef  NRF_CRYPTO_HASH_ENABLED
#define NRF_CRYPTO_HASH_ENABLED 1

// Duplicate backend enabled test for SHA-256
#if NRF_MODULE_ENABLED(NRF_CRYPTO_HASH_SHA256)
#error "Duplicate definition of SHA-256. More than one backend enabled");
#endif

// Flag that SHA-256 is enabled in backend
#define NRF_CRYPTO_HASH_SHA256_ENABLED 1


/**@brief nrf_crypto_hash context for SHA-256 in nrf_crypto Oberon backend. */
typedef struct
{
    nrf_crypto_hash_internal_context_t  header;     /**< Common header for context. */
    occ_sha256_ctx                      context;    /**< Hash context internal to Oberon. */
} nrf_crypto_backend_hash_sha256_context_t;


#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HASH_SHA256)

#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HASH_SHA512)

// Flag that nrf_crypto_hash frontend can be compiled
#undef  NRF_CRYPTO_HASH_ENABLED
#define NRF_CRYPTO_HASH_ENABLED 1

// Duplicate backend enabled test for SHA-512
#if NRF_MODULE_ENABLED(NRF_CRYPTO_HASH_SHA512)
#error "Duplicate definition of SHA-512. More than one backend enabled");
#endif

// Flag that SHA-512 is enabled in backend
#define NRF_CRYPTO_HASH_SHA512_ENABLED 1


/**@brief nrf_crypto_hash context for SHA-512 in nrf_crypto Oberon backend. */
typedef struct
{
    nrf_crypto_hash_internal_context_t  header;     /**< Common header for context. */
    occ_sha512_ctx                      context;    /**< Hash context internal to Oberon. */
} nrf_crypto_backend_hash_sha512_context_t;


#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HASH_SHA512)

#ifdef __cplusplus
}
#endif

#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)

/**@} */

#endif // OBERON_BACKEND_HASH_H__
