1 /*- 2 * Copyright (c) 1991, 1993 3 * Dave Safford. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 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. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 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 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 /* header for the des routines that we will use */ 33 34 typedef unsigned char byte, DesData[ 8], IdeaData[16]; 35 #define DesKeys DES_key_schedule 36 37 #define DES_DECRYPT 0 38 #define DES_ENCRYPT 1 39 40 /* public key routines */ 41 /* functions: 42 genkeys(char *public, char *secret) 43 common_key(char *secret, char *public, desData *deskey) 44 where 45 char public[HEXKEYBYTES + 1]; 46 char secret[HEXKEYBYTES + 1]; 47 */ 48 49 #define HEXMODULUS "d4a0ba0250b6fd2ec626e7efd637df76c716e22d0944b88b" 50 #define HEXKEYBYTES 48 51 #define KEYSIZE 192 52 #define KEYBYTES 24 53 #define PROOT 3 54 55 extern void genkeys(char *public, char *secret); 56 extern void common_key(char *secret, char *public, IdeaData *common, 57 DesData *deskey); 58 extern void pk_encode(char *in, char *out, DesData *deskey); 59 extern void pk_decode(char *in, char *out, DesData *deskey); 60