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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
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- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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- *
- */
- #ifndef OBERON_BACKEND_CHACHA_POLY_AEAD_H__
- #define OBERON_BACKEND_CHACHA_POLY_AEAD_H__
- /** @file
- *
- * @defgroup nrf_crypto_oberon_backend_chacha_poly_aead nrf_crypto Oberon backend CHACHA_POLY AEAD
- * @{
- * @ingroup nrf_crypto_oberon_backend
- *
- * @brief AES AEAD functionality provided by the nrf_crypto Oberon backend.
- */
- #include "sdk_config.h"
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
- #include "nrf_crypto_aead_shared.h"
- #include "ocrypto_chacha20_poly1305.h"
- #include "nrf_crypto_error.h"
- #include "nrf_crypto_types.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- #define NRF_CRYPTO_OBERON_CHACHA_POLY_BACKEND_KEY_SIZE (32)
- /* CHACHA-POLY */
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_CHACHA_POLY)
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_CHACHA_POLY)
- #error "Duplicate definition of CHACHA-POLY mode. More than one backend enabled");
- #endif
- #define NRF_CRYPTO_CHACHA_POLY_ENABLED 1
- #undef NRF_CRYPTO_AEAD_ENABLED
- #define NRF_CRYPTO_AEAD_ENABLED 1 // Flag that nrf_crypto_aead frontend can be compiled
- #undef NRF_CRYPTO_OBERON_CHACHA_POLY_AEAD_ENABLED
- #define NRF_CRYPTO_OBERON_CHACHA_POLY_AEAD_ENABLED 1 // aead backend for Oberon can be compiled
- /* defines for test purposes */
- #define NRF_CRYPTO_AES_CHACHA_POLY_256_ENABLED 1
- typedef struct
- {
- nrf_crypto_aead_internal_context_t header; /**< Common header for context. */
- uint8_t key[NRF_CRYPTO_OBERON_CHACHA_POLY_BACKEND_KEY_SIZE];
- } nrf_crypto_backend_chacha_poly_context_t;
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
- /** @} */
- #endif // OBERON_BACKEND_CHACHA_POLY_AEAD_H__
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