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51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* cast5.h
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 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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* G10 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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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifndef G10_CAST5_H
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#define G10_CAST5_H
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#include "types.h"
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#define CAST5_BLOCKSIZE 8
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typedef struct {
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u32 s0[256];
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u32 s1[256];
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u32 s2[256];
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u32 s3[256];
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u32 p[16+2];
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byte iv[CAST5_BLOCKSIZE];
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byte eniv[CAST5_BLOCKSIZE];
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int count;
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} CAST5_context;
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void cast5_setkey( CAST5_context *c, byte *key, unsigned keylen );
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void cast5_setiv( CAST5_context *c, byte *iv );
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void cast5_encode( CAST5_context *c, byte *outbuf, byte *inbuf,
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unsigned nblocks );
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void cast5_decode( CAST5_context *c, byte *outbuf, byte *inbuf,
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unsigned nblocks );
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void cast5_encode_cfb( CAST5_context *c, byte *outbuf,
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byte *inbuf, unsigned nbytes);
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void cast5_decode_cfb( CAST5_context *c, byte *outbuf,
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byte *inbuf, unsigned nbytes);
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#endif /*G10_CAST5_H*/
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