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/* authcert.c,v 3.1 1993/07/06 01:04:52 jbj Exp
* This file, and the certdata file, shamelessly stolen
* from Phil Karn's DES implementation.
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#define DES
#include "ntp_stdlib.h"
u_char ekeys[128];
u_char dkeys[128];
static void get8 P((U_LONG *));
static void put8 P((U_LONG *));
void
main()
{
U_LONG key[2], plain[2], cipher[2], answer[2];
int i;
int test;
int fail;
for(test=0;!feof(stdin);test++){
get8(key);
DESauth_subkeys(key, ekeys, dkeys);
printf(" K: "); put8(key);
get8(plain);
printf(" P: "); put8(plain);
get8(answer);
printf(" C: "); put8(answer);
for(i=0;i<2;i++)
cipher[i] = htonl(plain[i]);
DESauth_des(cipher, ekeys);
for(i=0;i<2;i++)
if(ntohl(cipher[i]) != answer[i])
break;
fail = 0;
if(i != 2){
printf(" Encrypt FAIL");
fail++;
}
DESauth_des(cipher, dkeys);
for(i=0;i<2;i++)
if(ntohl(cipher[i]) != plain[i])
break;
if(i != 2){
printf(" Decrypt FAIL");
fail++;
}
if(fail == 0)
printf(" OK");
printf("\n");
}
}
static void
get8(lp)
U_LONG *lp;
{
int t;
U_LONG l[2];
int i;
l[0] = l[1] = 0L;
for(i=0;i<8;i++){
scanf("%2x",&t);
if(feof(stdin))
exit(0);
l[i/4] <<= 8;
l[i/4] |= (U_LONG)(t & 0xff);
}
*lp = l[0];
*(lp+1) = l[1];
}
static void
put8(lp)
U_LONG *lp;
{
int i;
for(i=0;i<2;i++){
printf("%08x",*lp++);
}
}
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