2 * Copyright (c) 1991, 1993
3 * Dave Safford. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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32 /* header for the des routines that we will use */
34 typedef unsigned char byte, DesData[ 8], IdeaData[16];
36 typedef unsigned long word, DesKeys[32];
38 #define DesKeys des_key_schedule
45 extern void des_fixup_key_parity(); /* (DesData *key) */
46 extern int des_key_sched(); /* (DesData *key, DesKeys *m) */
47 extern int des_ecb_encrypt(); /* (DesData *src, *dst, DesKeys *m, int mode) */
48 extern int des_cbc_encrypt(); /* (char *src, *dst, int length,
49 DesKeys *m, DesData *init, int mode) */
52 /* public key routines */
54 genkeys(char *public, char *secret)
55 common_key(char *secret, char *public, desData *deskey)
57 char public[HEXKEYBYTES + 1];
58 char secret[HEXKEYBYTES + 1];
61 #define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b"
62 #define HEXKEYBYTES 48
67 extern void genkeys(char *public, char *secret);
68 extern void common_key(char *secret, char *public, IdeaData *common,
70 extern void pk_encode(char *in, char *out, DesData *deskey);
71 extern void pk_decode(char *in, char *out, DesData *deskey);