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components/libraries/crypto/backend/cc310/cc310_backend_rng.h

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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
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef CC310_BACKEND_RNG_H__
+#define CC310_BACKEND_RNG_H__
+
+/** @file
+ *
+ * @defgroup nrf_crypto_cc310_backend_rng nRF Crypto CC310 RNG backend
+ * @{
+ * @ingroup nrf_crypto_cc310_backend
+ *
+ * @brief RNG functionality provided by the nrf_crypto CC310 backend.
+ */
+
+#include "sdk_common.h"
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
+
+#include "nrf_crypto_rng_shared.h"
+#include "crys_rnd.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_RNG)
+#error "More than one RNG backend enabled."
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_RNG)
+#define NRF_CRYPTO_RNG_ENABLED 1
+
+
+/**
+ * @internal @brief Internal context for CC310 RNG.
+ */
+typedef struct
+{
+    nrf_crypto_rng_internal_context_t   header;         //!< Internal common context header.
+    CRYS_RND_State_t                    crys_rnd_state; //!< CC310 RNG context
+} nrf_crypto_backend_rng_context_t;
+
+
+/**
+ * @internal @brief Temporary work buffer needed during initialization of the CC310 backend.
+ */
+typedef CRYS_RND_WorkBuff_t nrf_crypto_backend_rng_temp_buffer_t;
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_RNG)
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310)
+
+/**@} */
+
+#endif // CC310_BACKEND_RNG_H__