oberon_backend_chacha_poly_aead.h 3.6 KB

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  1. /**
  2. * Copyright (c) 2018 - 2020, Nordic Semiconductor ASA
  3. *
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without modification,
  7. * are permitted provided that the following conditions are met:
  8. *
  9. * 1. Redistributions of source code must retain the above copyright notice, this
  10. * list of conditions and the following disclaimer.
  11. *
  12. * 2. Redistributions in binary form, except as embedded into a Nordic
  13. * Semiconductor ASA integrated circuit in a product or a software update for
  14. * such product, must reproduce the above copyright notice, this list of
  15. * conditions and the following disclaimer in the documentation and/or other
  16. * materials provided with the distribution.
  17. *
  18. * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
  19. * contributors may be used to endorse or promote products derived from this
  20. * software without specific prior written permission.
  21. *
  22. * 4. This software, with or without modification, must only be used with a
  23. * Nordic Semiconductor ASA integrated circuit.
  24. *
  25. * 5. Any software provided in binary form under this license must not be reverse
  26. * engineered, decompiled, modified and/or disassembled.
  27. *
  28. * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
  29. * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  30. * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31. * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
  32. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  34. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  37. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38. *
  39. */
  40. #ifndef OBERON_BACKEND_CHACHA_POLY_AEAD_H__
  41. #define OBERON_BACKEND_CHACHA_POLY_AEAD_H__
  42. /** @file
  43. *
  44. * @defgroup nrf_crypto_oberon_backend_chacha_poly_aead nrf_crypto Oberon backend CHACHA_POLY AEAD
  45. * @{
  46. * @ingroup nrf_crypto_oberon_backend
  47. *
  48. * @brief AES AEAD functionality provided by the nrf_crypto Oberon backend.
  49. */
  50. #include "sdk_config.h"
  51. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
  52. #include "nrf_crypto_aead_shared.h"
  53. #include "ocrypto_chacha20_poly1305.h"
  54. #include "nrf_crypto_error.h"
  55. #include "nrf_crypto_types.h"
  56. #ifdef __cplusplus
  57. extern "C" {
  58. #endif
  59. #define NRF_CRYPTO_OBERON_CHACHA_POLY_BACKEND_KEY_SIZE (32)
  60. /* CHACHA-POLY */
  61. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_CHACHA_POLY)
  62. #if NRF_MODULE_ENABLED(NRF_CRYPTO_CHACHA_POLY)
  63. #error "Duplicate definition of CHACHA-POLY mode. More than one backend enabled");
  64. #endif
  65. #define NRF_CRYPTO_CHACHA_POLY_ENABLED 1
  66. #undef NRF_CRYPTO_AEAD_ENABLED
  67. #define NRF_CRYPTO_AEAD_ENABLED 1 // Flag that nrf_crypto_aead frontend can be compiled
  68. #undef NRF_CRYPTO_OBERON_CHACHA_POLY_AEAD_ENABLED
  69. #define NRF_CRYPTO_OBERON_CHACHA_POLY_AEAD_ENABLED 1 // aead backend for Oberon can be compiled
  70. /* defines for test purposes */
  71. #define NRF_CRYPTO_AES_CHACHA_POLY_256_ENABLED 1
  72. typedef struct
  73. {
  74. nrf_crypto_aead_internal_context_t header; /**< Common header for context. */
  75. uint8_t key[NRF_CRYPTO_OBERON_CHACHA_POLY_BACKEND_KEY_SIZE];
  76. } nrf_crypto_backend_chacha_poly_context_t;
  77. #endif
  78. #ifdef __cplusplus
  79. }
  80. #endif
  81. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
  82. /** @} */
  83. #endif // OBERON_BACKEND_CHACHA_POLY_AEAD_H__