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91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
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/* @(#)sha3.h 1.6 16/10/26 2015-2016 J. Schilling */
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/* sha3.h */
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/*
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* SHA3 hash code taken from
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* https://github.com/rhash/RHash/tree/master/librhash
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*
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* Portions Copyright (c) 2015-2016 J. Schilling
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*/
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#ifndef _SCHILY_SHA3_H
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#define _SCHILY_SHA3_H
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#ifndef _SCHILY_MCONFIG_H
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#include <schily/mconfig.h>
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#endif
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#include <schily/types.h>
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#include <schily/stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef HAVE_LONGLONG
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#define sha3_224_hash_size 28
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#define sha3_256_hash_size 32
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#define sha3_384_hash_size 48
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#define sha3_512_hash_size 64
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#define sha3_max_permutation_size 25
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#define sha3_max_rate_in_qwords 24
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#define SHA3_224_DIGEST_LENGTH sha3_224_hash_size
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#define SHA3_224_DIGEST_STRING_LENGTH (SHA3_224_DIGEST_LENGTH * 2 + 1)
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#define SHA3_256_DIGEST_LENGTH sha3_256_hash_size
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#define SHA3_256_DIGEST_STRING_LENGTH (SHA3_256_DIGEST_LENGTH * 2 + 1)
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#define SHA3_384_DIGEST_LENGTH sha3_384_hash_size
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#define SHA3_384_DIGEST_STRING_LENGTH (SHA3_384_DIGEST_LENGTH * 2 + 1)
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#define SHA3_512_DIGEST_LENGTH sha3_512_hash_size
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#define SHA3_512_DIGEST_STRING_LENGTH (SHA3_512_DIGEST_LENGTH * 2 + 1)
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/*
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* SHA3 Algorithm context.
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*/
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typedef struct sha3_ctx
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{
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/* 1600 bits algorithm hashing state */
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UInt64_t hash[sha3_max_permutation_size];
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/* 1536-bit buffer for leftovers */
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UInt64_t message[sha3_max_rate_in_qwords];
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/* count of bytes in the message[] buffer */
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unsigned rest;
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/* size of a message block processed at once */
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unsigned block_size;
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} sha3_ctx, SHA3_CTX;
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/* methods for calculating the hash function */
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void rhash_sha3_224_init __PR((sha3_ctx *ctx));
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void rhash_sha3_256_init __PR((sha3_ctx *ctx));
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void rhash_sha3_384_init __PR((sha3_ctx *ctx));
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void rhash_sha3_512_init __PR((sha3_ctx *ctx));
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void rhash_sha3_update __PR((sha3_ctx *ctx,
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const unsigned char *msg,
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size_t size));
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void rhash_sha3_final __PR((sha3_ctx *ctx, unsigned char *result));
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void SHA3_224_Init __PR((SHA3_CTX *ctx));
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void SHA3_256_Init __PR((SHA3_CTX *ctx));
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void SHA3_384_Init __PR((SHA3_CTX *ctx));
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void SHA3_512_Init __PR((SHA3_CTX *ctx));
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void SHA3_Update __PR((SHA3_CTX *ctx,
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const unsigned char *msg,
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size_t size));
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void SHA3_Final __PR((unsigned char *result, SHA3_CTX *ctx));
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#ifdef USE_KECCAK
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#define rhash_keccak_224_init rhash_sha3_224_init
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#define rhash_keccak_256_init rhash_sha3_256_init
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#define rhash_keccak_384_init rhash_sha3_384_init
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#define rhash_keccak_512_init rhash_sha3_512_init
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#define rhash_keccak_update rhash_sha3_update
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void rhash_keccak_final __PR((sha3_ctx *ctx, unsigned char *result));
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#endif
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#endif /* HAVE_LONGLONG */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SCHILY_SHA3_H */
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