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Diffstat (limited to 'engines/ccgost/gosthash.h')
| -rw-r--r-- | engines/ccgost/gosthash.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/engines/ccgost/gosthash.h b/engines/ccgost/gosthash.h new file mode 100644 index 0000000000..4a2e441ece --- /dev/null +++ b/engines/ccgost/gosthash.h @@ -0,0 +1,48 @@ +/********************************************************************** + * gosthash.h * + * Copyright (c) 2005-2006 Cryptocom LTD * + * This file is distributed under the same license as OpenSSL * + * * + * Declaration of GOST R 34.11-94 hash functions * + * uses and gost89.h Doesn't need OpenSSL * + **********************************************************************/ +#ifndef GOSTHASH_H +#define GOSTHASH_H +#include "gost89.h" +#include <stdlib.h> + +#if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__) +typedef __int64 ghosthash_len; +#elif defined(__arch64__) +typedef long ghosthash_len; +#else +typedef long long ghosthash_len; +#endif + +typedef struct gost_hash_ctx { + ghosthash_len len; + gost_ctx *cipher_ctx; + int left; + byte H[32]; + byte S[32]; + byte remainder[32]; +} gost_hash_ctx; + + +/* Initalizes gost hash ctx, including creation of gost cipher ctx */ + +int init_gost_hash_ctx(gost_hash_ctx *ctx, const gost_subst_block *subst_block); +void done_gost_hash_ctx(gost_hash_ctx *ctx); + +/* Cleans up all fields, except cipher ctx preparing ctx for computing + * of new hash value */ +int start_hash(gost_hash_ctx *ctx); + +/* Hashes block of data */ +int hash_block(gost_hash_ctx *ctx, const byte *block, size_t length); + +/* Finalizes computation of hash and fills buffer (which should be at + * least 32 bytes long) with value of computed hash. */ +int finish_hash(gost_hash_ctx *ctx, byte *hashval); + +#endif |