owner-nrf52sdk/nRF5_SDK_17.0.2/components/libraries/crypto/nrf_crypto_hash_backend.h

/**
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#ifndef NRF_CRYPTO_HASH_BACKEND_H__
#define NRF_CRYPTO_HASH_BACKEND_H__

#include "sdk_common.h"
#include "cc310_backend_hash.h"
#include "mbedtls_backend_hash.h"
#include "oberon_backend_hash.h"
#include "cc310_bl_backend_hash.h"
#include "nrf_sw_backend_hash.h"

#ifdef __cplusplus
extern "C" {
#endif

#if !NRF_MODULE_ENABLED(NRF_CRYPTO_HASH_SHA256)

/**@internal @brief Fallback type for SHA-256 hash context (if no backend is enabled).
 */
typedef nrf_crypto_hash_internal_context_t  nrf_crypto_backend_hash_sha256_context_t;

#endif

#if !NRF_MODULE_ENABLED(NRF_CRYPTO_HASH_SHA512)

/**@internal @brief Fallback type for SHA-512 hash context (if no backend is enabled).
 */
typedef nrf_crypto_hash_internal_context_t  nrf_crypto_backend_hash_sha512_context_t;

#endif


/** @internal @brief Union holding a hash context. */
typedef union
{
    nrf_crypto_backend_hash_sha256_context_t hash_sha256_context;   /**< @brief Holds context for SHA-256. */
    nrf_crypto_backend_hash_sha512_context_t hash_sha512_context;   /**< @brief Holds context for SHA-512. */
} nrf_crypto_backend_hash_context_t;


#ifdef __cplusplus
}
#endif

#endif // NRF_CRYPTO_HASH_BACKEND_H__