mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-02 08:42:48 +00:00
141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/*
|
|
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
|
|
* unrestricted use provided that this legend is included on all tape
|
|
* media and as a part of the software program in whole or part. Users
|
|
* may copy or modify Sun RPC without charge, but are not authorized
|
|
* to license or distribute it to anyone else except as part of a product or
|
|
* program developed by the user or with the express written consent of
|
|
* Sun Microsystems, Inc.
|
|
*
|
|
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
|
|
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
|
|
*
|
|
* Sun RPC is provided with no support and without any obligation on the
|
|
* part of Sun Microsystems, Inc. to assist in its use, correction,
|
|
* modification or enhancement.
|
|
*
|
|
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
|
|
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
|
|
* OR ANY PART THEREOF.
|
|
*
|
|
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
|
|
* or profits or other special, indirect and consequential damages, even if
|
|
* Sun has been advised of the possibility of such damages.
|
|
*
|
|
* Sun Microsystems, Inc.
|
|
* 2550 Garcia Avenue
|
|
* Mountain View, California 94043
|
|
*/
|
|
#if !defined(lint) && defined(SCCSIDS)
|
|
#if 0
|
|
static char sccsid[] = "@(#)generic.c 1.2 91/03/11 Copyr 1986 Sun Micro";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$Id$";
|
|
#endif
|
|
|
|
/*
|
|
* Copyright (C) 1986, Sun Microsystems, Inc.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <rpc/rpc.h>
|
|
#include <sys/file.h>
|
|
#include <mp.h>
|
|
#include <rpc/key_prot.h>
|
|
|
|
static int adjust __P(( char[], char * ));
|
|
/*
|
|
* Generate a seed
|
|
*/
|
|
static
|
|
getseed(seed, seedsize, pass)
|
|
char *seed;
|
|
int seedsize;
|
|
unsigned char *pass;
|
|
{
|
|
int i;
|
|
int rseed;
|
|
struct timeval tv;
|
|
|
|
(void)gettimeofday(&tv, (struct timezone *)NULL);
|
|
rseed = tv.tv_sec + tv.tv_usec;
|
|
for (i = 0; i < 8; i++) {
|
|
rseed ^= (rseed << 8) | pass[i];
|
|
}
|
|
srand(rseed);
|
|
|
|
for (i = 0; i < seedsize; i++) {
|
|
seed[i] = (rand() & 0xff) ^ pass[i % 8];
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Generate a random public/secret key pair
|
|
*/
|
|
genkeys(public, secret, pass)
|
|
char *public;
|
|
char *secret;
|
|
char *pass;
|
|
{
|
|
int i;
|
|
|
|
# define BASEBITS (8*sizeof (short) - 1)
|
|
# define BASE (1 << BASEBITS)
|
|
|
|
MINT *pk = itom(0);
|
|
MINT *sk = itom(0);
|
|
MINT *tmp;
|
|
MINT *base = itom(BASE);
|
|
MINT *root = itom(PROOT);
|
|
MINT *modulus = xtom(HEXMODULUS);
|
|
short r;
|
|
unsigned short seed[KEYSIZE/BASEBITS + 1];
|
|
char *xkey;
|
|
|
|
getseed((char *)seed, sizeof (seed), (u_char *)pass);
|
|
for (i = 0; i < KEYSIZE/BASEBITS + 1; i++) {
|
|
r = seed[i] % BASE;
|
|
tmp = itom(r);
|
|
mult(sk, base, sk);
|
|
madd(sk, tmp, sk);
|
|
mfree(tmp);
|
|
}
|
|
tmp = itom(0);
|
|
mdiv(sk, modulus, tmp, sk);
|
|
mfree(tmp);
|
|
pow(root, sk, modulus, pk);
|
|
xkey = mtox(sk);
|
|
adjust(secret, xkey);
|
|
xkey = mtox(pk);
|
|
adjust(public, xkey);
|
|
mfree(sk);
|
|
mfree(base);
|
|
mfree(pk);
|
|
mfree(root);
|
|
mfree(modulus);
|
|
}
|
|
|
|
/*
|
|
* Adjust the input key so that it is 0-filled on the left
|
|
*/
|
|
static
|
|
adjust(keyout, keyin)
|
|
char keyout[HEXKEYBYTES+1];
|
|
char *keyin;
|
|
{
|
|
char *p;
|
|
char *s;
|
|
|
|
for (p = keyin; *p; p++)
|
|
;
|
|
for (s = keyout + HEXKEYBYTES; p >= keyin; p--, s--) {
|
|
*s = *p;
|
|
}
|
|
while (s >= keyout) {
|
|
*s-- = '0';
|
|
}
|
|
}
|