2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
3 * unrestricted use provided that this legend is included on all tape
4 * media and as a part of the software program in whole or part. Users
5 * may copy or modify Sun RPC without charge, but are not authorized
6 * to license or distribute it to anyone else except as part of a product or
7 * program developed by the user or with the express written consent of
8 * Sun Microsystems, Inc.
10 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
11 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
12 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
14 * Sun RPC is provided with no support and without any obligation on the
15 * part of Sun Microsystems, Inc. to assist in its use, correction,
16 * modification or enhancement.
18 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
19 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
20 * OR ANY PART THEREOF.
22 * In no event will Sun Microsystems, Inc. be liable for any lost revenue
23 * or profits or other special, indirect and consequential damages, even if
24 * Sun has been advised of the possibility of such damages.
26 * Sun Microsystems, Inc.
28 * Mountain View, California 94043
31 #if !defined(lint) && defined(SCCSIDS)
33 static char sccsid[] = "@(#)generic.c 1.2 91/03/11 Copyr 1986 Sun Micro";
38 * Copyright (C) 1986, Sun Microsystems, Inc.
41 #include <sys/cdefs.h>
42 __FBSDID("$FreeBSD$");
47 #include <rpc/key_prot.h>
55 static void adjust(char[], char *);
56 static void getseed(char *, int, unsigned char *);
62 getseed(char *seed, int seedsize, unsigned char *pass)
66 for (i = 0; i < seedsize; i++) {
67 seed[i] = (arc4random() & 0xff) ^ pass[i % 8];
72 * Generate a random public/secret key pair
75 genkeys(char *public, char *secret, char *pass)
79 # define BASEBITS (8*sizeof (short) - 1)
80 # define BASE (1 << BASEBITS)
82 MINT *pk = mp_itom(0);
83 MINT *sk = mp_itom(0);
85 MINT *base = mp_itom(BASE);
86 MINT *root = mp_itom(PROOT);
87 MINT *modulus = mp_xtom(HEXMODULUS);
89 unsigned short seed[KEYSIZE/BASEBITS + 1];
92 getseed((char *)seed, sizeof (seed), (u_char *)pass);
93 for (i = 0; i < KEYSIZE/BASEBITS + 1; i++) {
96 mp_mult(sk, base, sk);
101 mp_mdiv(sk, modulus, tmp, sk);
103 mp_pow(root, sk, modulus, pk);
105 adjust(secret, xkey);
107 adjust(public, xkey);
116 * Adjust the input key so that it is 0-filled on the left
119 adjust(char keyout[HEXKEYBYTES+1], char *keyin)
124 for (p = keyin; *p; p++)
126 for (s = keyout + HEXKEYBYTES; p >= keyin; p--, s--) {
129 while (s >= keyout) {