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dddf507557
- added these variants: SHA3-256, SHA3-384, SHA3-512 - reordered also the hashing id's - added some notes about them in DOC/Hashes.txt Signed-off-by: Tino Reichardt <milky-7zip@mcmilk.de>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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/**
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* Canonical implementation of Init/Update/Finalize for SHA-3 byte input.
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* Based on code from https://github.com/brainhub/SHA3IUF/
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*
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* This work is released into the public domain with CC0 1.0.
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*
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* Copyright (c) 2015. Andrey Jivsov <crypto@brainhub.org>
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* Copyright (c) 2023 Tino Reichardt <milky-7zip@mcmilk.de>
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*/
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#ifndef SHA3_H
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#define SHA3_H
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#include <stdint.h>
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#define SHA3_256_DIGEST_LENGTH 32
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#define SHA3_384_DIGEST_LENGTH 48
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#define SHA3_512_DIGEST_LENGTH 64
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/* 'Words' here refers to uint64_t */
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#define SHA3_KECCAK_SPONGE_WORDS (200 / sizeof(uint64_t))
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typedef struct sha3_context_ {
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/* the portion of the input message that we didn't consume yet */
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uint64_t saved;
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uint64_t byteIndex; /* 0..7--the next byte after the set one */
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uint64_t wordIndex; /* 0..24--the next word to integrate input */
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uint64_t capacityWords; /* the double size of the hash output in words */
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/* Keccak's state */
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union {
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uint64_t s[SHA3_KECCAK_SPONGE_WORDS];
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uint8_t sb[SHA3_KECCAK_SPONGE_WORDS * 8];
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} u;
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unsigned digest_length;
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} SHA3_CTX;
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void SHA3_Init(SHA3_CTX * ctx, unsigned bitSize);
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void SHA3_Update(SHA3_CTX * ctx, void const *bufIn, size_t len);
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void SHA3_Final(void *, SHA3_CTX * ctx);
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#endif
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