52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/**********************************************************************
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* gosthash.h *
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* Copyright (c) 2005-2006 Cryptocom LTD *
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* This file is distributed under the same license as OpenSSL *
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* *
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* Declaration of GOST R 34.11-94 hash functions *
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* uses and gost89.h Doesn't need OpenSSL *
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**********************************************************************/
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#ifndef GOSTHASH_H
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# define GOSTHASH_H
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# include "gost89.h"
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# include <stdlib.h>
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# if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
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typedef __int64 ghosthash_len;
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# elif defined(__arch64__)
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typedef long ghosthash_len;
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# else
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typedef long long ghosthash_len;
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# endif
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typedef struct gost_hash_ctx {
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ghosthash_len len;
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gost_ctx *cipher_ctx;
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int left;
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byte H[32];
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byte S[32];
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byte remainder[32];
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} gost_hash_ctx;
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/* Initalizes gost hash ctx, including creation of gost cipher ctx */
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int init_gost_hash_ctx(gost_hash_ctx * ctx,
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const gost_subst_block * subst_block);
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void done_gost_hash_ctx(gost_hash_ctx * ctx);
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/*
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* Cleans up all fields, except cipher ctx preparing ctx for computing of new
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* hash value
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*/
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int start_hash(gost_hash_ctx * ctx);
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/* Hashes block of data */
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int hash_block(gost_hash_ctx * ctx, const byte * block, size_t length);
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/*
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* Finalizes computation of hash and fills buffer (which should be at least
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* 32 bytes long) with value of computed hash.
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*/
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int finish_hash(gost_hash_ctx * ctx, byte * hashval);
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#endif
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