1 /********************************************************************** 2 * gosthash.h * 3 * Copyright (c) 2005-2006 Cryptocom LTD * 4 * This file is distributed under the same license as OpenSSL * 5 * * 6 * Declaration of GOST R 34.11-94 hash functions * 7 * uses and gost89.h Doesn't need OpenSSL * 8 **********************************************************************/ 9 #ifndef GOSTHASH_H 10 # define GOSTHASH_H 11 # include "gost89.h" 12 # include <stdlib.h> 13 14 # if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) 15 typedef __int64 ghosthash_len; 16 # elif defined(__arch64__) 17 typedef long ghosthash_len; 18 # else 19 typedef long long ghosthash_len; 20 # endif 21 22 typedef struct gost_hash_ctx { 23 ghosthash_len len; 24 gost_ctx *cipher_ctx; 25 int left; 26 byte H[32]; 27 byte S[32]; 28 byte remainder[32]; 29 } gost_hash_ctx; 30 31 /* Initalizes gost hash ctx, including creation of gost cipher ctx */ 32 33 int init_gost_hash_ctx(gost_hash_ctx * ctx, 34 const gost_subst_block * subst_block); 35 void done_gost_hash_ctx(gost_hash_ctx * ctx); 36 37 /* 38 * Cleans up all fields, except cipher ctx preparing ctx for computing of new 39 * hash value 40 */ 41 int start_hash(gost_hash_ctx * ctx); 42 43 /* Hashes block of data */ 44 int hash_block(gost_hash_ctx * ctx, const byte * block, size_t length); 45 46 /* 47 * Finalizes computation of hash and fills buffer (which should be at least 48 * 32 bytes long) with value of computed hash. 49 */ 50 int finish_hash(gost_hash_ctx * ctx, byte * hashval); 51 52 #endif 53