oberon_backend_ecdh.h 3.9 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_ECDH_H__
  41. #define OBERON_BACKEND_ECDH_H__
  42. #include "sdk_config.h"
  43. #include "nordic_common.h"
  44. #if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
  45. #include <stdint.h>
  46. #include "nrf_crypto_ecc.h"
  47. #include "nrf_crypto_ecdh_shared.h"
  48. #ifdef __cplusplus
  49. extern "C" {
  50. #endif
  51. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_SECP256R1)
  52. /** @internal See @ref nrf_crypto_backend_ecdh_compute_fn_t.
  53. */
  54. ret_code_t nrf_crypto_backend_secp256r1_ecdh_compute(
  55. void * p_context,
  56. void const * p_private_key,
  57. void const * p_public_key,
  58. uint8_t * p_shared_secret);
  59. // Context in not used in OBERON backend
  60. typedef uint32_t nrf_crypto_backend_secp256r1_ecdh_context_t;
  61. #define NRF_CRYPTO_BACKEND_SECP256R1_ECDH_CONTEXT_SIZE 0
  62. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_SECP256R1)
  63. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_CURVE25519)
  64. /** @internal See @ref nrf_crypto_backend_ecdh_compute_fn_t.
  65. */
  66. ret_code_t nrf_crypto_backend_curve25519_ecdh_compute(
  67. void * p_context,
  68. void const * p_private_key,
  69. void const * p_public_key,
  70. uint8_t * p_shared_secret);
  71. // Context in not used in OBERON backend
  72. typedef uint32_t nrf_crypto_backend_curve25519_ecdh_context_t;
  73. #define NRF_CRYPTO_BACKEND_CURVE25519_ECDH_CONTEXT_SIZE 0
  74. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_CURVE25519)
  75. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_ED25519)
  76. // ECDH is not possible for Ed25519
  77. #define nrf_crypto_backend_ed25519_ecdh_compute NULL
  78. typedef uint32_t nrf_crypto_backend_ed25519_ecdh_context_t;
  79. #define NRF_CRYPTO_BACKEND_ED25519_ECDH_CONTEXT_SIZE 0
  80. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_ECC_ED25519)
  81. #ifdef __cplusplus
  82. }
  83. #endif
  84. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON)
  85. #endif // OBERON_BACKEND_ECDH_H__