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
30 * @(#)generic.c 1.2 91/03/11 Copyr 1986 Sun Micro
31 * $FreeBSD: src/usr.bin/newkey/generic.c,v 1.3.2.1 2001/07/04 22:32:20 kris Exp $
32 * $DragonFly: src/usr.bin/newkey/generic.c,v 1.2 2003/06/17 04:29:30 dillon Exp $
36 * Copyright (C) 1986, Sun Microsystems, Inc.
44 #include <rpc/key_prot.h>
46 static int adjust __P(( char[], char * ));
51 getseed(seed, seedsize, pass)
58 for (i = 0; i < seedsize; i++) {
59 seed[i] = (arc4random() & 0xff) ^ pass[i % 8];
64 * Generate a random public/secret key pair
66 genkeys(public, secret, pass)
73 # define BASEBITS (8*sizeof (short) - 1)
74 # define BASE (1 << BASEBITS)
79 MINT *base = itom(BASE);
80 MINT *root = itom(PROOT);
81 MINT *modulus = xtom(HEXMODULUS);
83 unsigned short seed[KEYSIZE/BASEBITS + 1];
86 getseed((char *)seed, sizeof (seed), (u_char *)pass);
87 for (i = 0; i < KEYSIZE/BASEBITS + 1; i++) {
95 mdiv(sk, modulus, tmp, sk);
97 pow(root, sk, modulus, pk);
101 adjust(public, xkey);
110 * Adjust the input key so that it is 0-filled on the left
113 adjust(keyout, keyin)
114 char keyout[HEXKEYBYTES+1];
120 for (p = keyin; *p; p++)
122 for (s = keyout + HEXKEYBYTES; p >= keyin; p--, s--) {
125 while (s >= keyout) {