cc310_backend_rng.h 3.2 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 CC310_BACKEND_RNG_H__
  41. #define CC310_BACKEND_RNG_H__
  42. /** @file
  43. *
  44. * @defgroup nrf_crypto_cc310_backend_rng nRF Crypto CC310 RNG backend
  45. * @{
  46. * @ingroup nrf_crypto_cc310_backend
  47. *
  48. * @brief RNG functionality provided by the nrf_crypto CC310 backend.
  49. */
  50. #include "sdk_common.h"
  51. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
  52. #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
  53. #include "nrf_crypto_rng_shared.h"
  54. #include "crys_rnd.h"
  55. #ifdef __cplusplus
  56. extern "C" {
  57. #endif
  58. #if NRF_MODULE_ENABLED(NRF_CRYPTO_RNG)
  59. #error "More than one RNG backend enabled."
  60. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_RNG)
  61. #define NRF_CRYPTO_RNG_ENABLED 1
  62. /**
  63. * @internal @brief Internal context for CC310 RNG.
  64. */
  65. typedef struct
  66. {
  67. nrf_crypto_rng_internal_context_t header; //!< Internal common context header.
  68. CRYS_RND_State_t crys_rnd_state; //!< CC310 RNG context
  69. } nrf_crypto_backend_rng_context_t;
  70. /**
  71. * @internal @brief Temporary work buffer needed during initialization of the CC310 backend.
  72. */
  73. typedef CRYS_RND_WorkBuff_t nrf_crypto_backend_rng_temp_buffer_t;
  74. #ifdef __cplusplus
  75. }
  76. #endif
  77. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
  78. #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
  79. /**@} */
  80. #endif // CC310_BACKEND_RNG_H__