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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/external/nrf_oberon/include/occ_sha512.h')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/external/nrf_oberon/include/occ_sha512.h | 141 |
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nrf_oberon/include/occ_sha512.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nrf_oberon/include/occ_sha512.h new file mode 100644 index 0000000..757e0ad --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nrf_oberon/include/occ_sha512.h @@ -0,0 +1,141 @@ +/** + * Copyright (c) 2016 - 2018, 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. + * + */ + +/**@file + * SHA-512 is part of the SHA-2 family that is a set of cryptographic hash + * functions designed by the NSA. It is the successor of the SHA-1 algorithm. + * + * A fixed-sized message digest is computed from variable length input data. + * The function is practically impossible to revert, and small changes in the + * input message lead to major changes in the message digest. + */ + +#ifndef OCC_SHA512_H +#define OCC_SHA512_H + +#include <stdint.h> +#include <stddef.h> + +/** + * Length of SHA-512 hash. + */ +#define occ_sha512_BYTES (64) + + +/**@cond */ +typedef struct { + uint64_t h[8]; + uint8_t padded[128]; + uint32_t length; + size_t bytes; +} occ_sha512_ctx; +/**@endcond */ + + +/**@name Incremental SHA-512 generator. + * + * This group of functions can be used to incrementally compute the SHA-512 + * hash for a given message. + * + * **Example** + * @include occ_sha512_incremental.c + */ +/**@{*/ +/** + * SHA-512 initialization. + * + * The generator state @p ctx is initialized by this function. + * + * @param[out] ctx Generator state. + */ +void occ_sha512_init(occ_sha512_ctx *ctx); + +/** + * SHA-512 incremental data input. + * + * The generator state @p ctx is updated to hash a message chunk @p in. + * + * This function can be called repeatedly until the whole message is processed. + * + * @param[in,out] ctx Generator state. + * @param in Input data. + * @param in_len Length of @p in. + * + * @remark Initialization of the generator state @p ctx through + * @c occ_sha512_init is required before this function can be called. + */ +void occ_sha512_update(occ_sha512_ctx *ctx, + const uint8_t *in, size_t in_len); + +/** + * SHA-512 output. + * + * The generator state @p ctx is updated to finalize the hash for the previously + * processed message chunks. The hash is put into @p r. + * + * @param[out] r Generated hash value. + * @param[in,out] ctx Generator state. + * + * @remark Initialization of the generator state @p ctx through + * @c occ_sha512_init is required before this function can be called. + * + * @remark After return, the generator state @p ctx must no longer be used with + * @c occ_sha512_update and @c occ_sha512_final unless it is + * reinitialized using @c occ_sha512_init. + */ +void occ_sha512_final(uint8_t r[occ_sha512_BYTES], occ_sha512_ctx *ctx); +/**@}*/ + +/** + * SHA-512 hash. + * + * The SHA-512 hash of a given input message @p in is computed and put into @p r. + * + * **Example** + * @include occ_sha512.c + * + * @param[out] r Generated hash. + * @param in Input data. + * @param in_len Length of @p in. + */ +void occ_sha512(uint8_t r[occ_sha512_BYTES], + const uint8_t *in, size_t in_len); + +#endif |