2002-06-29 13:31:13 +00:00
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/* gost.h
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* Copyright (C) 1998 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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2005-05-31 08:39:18 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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2002-06-29 13:31:13 +00:00
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*/
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#ifndef G10_GOST_H
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#define G10_GOST_H
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#include "types.h"
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#define GOST_KEYSIZE 16
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#define GOST_BLOCKSIZE 8
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#define GOST_ROUNDS 8
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#define GOST_KEYLEN (6*GOST_ROUNDS+4)
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typedef struct {
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u16 ek[GOST_KEYLEN];
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u16 dk[GOST_KEYLEN];
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byte iv[GOST_BLOCKSIZE];
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} GOST_context;
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void gost_setkey( GOST_context *c, byte *key );
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void gost_setiv( GOST_context *c, byte *iv );
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void gost_encode( GOST_context *c, byte *out, byte *in, unsigned nblocks );
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void gost_decode( GOST_context *c, byte *out, byte *in, unsigned nblocks );
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void gost_encode_cfb( GOST_context *c, byte *outbuf,
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byte *inbuf, unsigned nbytes);
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void gost_decode_cfb( GOST_context *c, byte *outbuf,
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byte *inbuf, unsigned nbytes);
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#endif /*G10_GOST_H*/
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