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

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#ifndef NRF_CRYPTO_AEAD_BACKEND_H__
#define NRF_CRYPTO_AEAD_BACKEND_H__

#include "cc310_backend_aes_aead.h"
#include "cc310_backend_chacha_poly_aead.h"
#include "cifra_backend_aes_aead.h"
#include "mbedtls_backend_aes_aead.h"
#include "oberon_backend_chacha_poly_aead.h"

#ifdef __cplusplus
extern "C" {
#endif

/**@internal @brief Fallback type for AES CCM context (if no backend is enabled).
 */
#if !NRF_MODULE_ENABLED(NRF_CRYPTO_AES_CCM)
typedef nrf_crypto_aead_internal_context_t nrf_crypto_backend_aes_ccm_context_t;
#endif

/**@internal @brief Fallback type for AES CCM* context (if no backend is enabled).
 */
#if !NRF_MODULE_ENABLED(NRF_CRYPTO_AES_CCM_STAR)
typedef nrf_crypto_aead_internal_context_t nrf_crypto_backend_aes_ccm_star_context_t;
#endif

/**@internal @brief Fallback type for AES EAX context (if no backend is enabled).
 */
#if !NRF_MODULE_ENABLED(NRF_CRYPTO_AES_EAX)
typedef nrf_crypto_aead_internal_context_t nrf_crypto_backend_aes_eax_context_t;
#endif

/**@internal @brief Fallback type for AES GCM context (if no backend is enabled).
 */
#if !NRF_MODULE_ENABLED(NRF_CRYPTO_AES_GCM)
typedef nrf_crypto_aead_internal_context_t nrf_crypto_backend_aes_gcm_context_t;
#endif

/**@internal @brief Fallback type for CHACHA-POLY context (if no backend is enabled).
 */
#if !NRF_MODULE_ENABLED(NRF_CRYPTO_CHACHA_POLY)
typedef nrf_crypto_aead_internal_context_t nrf_crypto_backend_chacha_poly_context_t;
#endif

/** @internal @brief Union holding a AEAD context. */
typedef union
{
    nrf_crypto_backend_aes_ccm_context_t      ccm_context;          /**< @brief Holds context for AES CCM. */
    nrf_crypto_backend_aes_ccm_star_context_t ccm_star_context;     /**< @brief Holds context for AES CCM*. */
    nrf_crypto_backend_aes_eax_context_t      eax_context;          /**< @brief Holds context for AES EAX. */
    nrf_crypto_backend_aes_gcm_context_t      gcm_context;          /**< @brief Holds context for AES GCM. */

    nrf_crypto_backend_chacha_poly_context_t  chacha_poly_context;  /**< @brief Holds context for ChaCha-Poly. */
} nrf_crypto_backend_aead_context_t;


#ifdef __cplusplus
}
#endif

#endif // NRF_CRYPTO_AEAD_BACKEND_H__