mirror of git://git.gnupg.org/gnupg.git
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
/* idea.h
|
|
* Copyright (c) 1997 by Werner Koch (dd9jn)
|
|
*
|
|
* ATTENTION: This code patented and needs a license for any commercial use.
|
|
*
|
|
* This file is part of G10.
|
|
*
|
|
* G10 is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* G10 is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
|
|
*/
|
|
#ifndef G10_IDEA_H
|
|
#define G10_IDEA_H
|
|
|
|
#include "types.h"
|
|
|
|
#define IDEA_KEYSIZE 16
|
|
#define IDEA_BLOCKSIZE 8
|
|
#define IDEA_ROUNDS 8
|
|
#define IDEA_KEYLEN (6*IDEA_ROUNDS+4)
|
|
|
|
typedef struct {
|
|
u16 ek[IDEA_KEYLEN];
|
|
u16 dk[IDEA_KEYLEN];
|
|
byte iv[IDEA_BLOCKSIZE];
|
|
byte lastcipher[IDEA_BLOCKSIZE];
|
|
int nleft;
|
|
} IDEA_context;
|
|
|
|
void idea_setkey( IDEA_context *c, byte *key );
|
|
void idea_setiv( IDEA_context *c, byte *iv );
|
|
void idea_encode( IDEA_context *c, byte *out, byte *in, unsigned nblocks );
|
|
void idea_decode( IDEA_context *c, byte *out, byte *in, unsigned nblocks );
|
|
void idea_encode_cfb( IDEA_context *c, byte *outbuf,
|
|
byte *inbuf, unsigned nbytes);
|
|
void idea_decode_cfb( IDEA_context *c, byte *outbuf,
|
|
byte *inbuf, unsigned nbytes);
|
|
void idea_sync_cfb( IDEA_context *c );
|
|
|
|
|
|
#endif /*G10_IDEA_H*/
|