source: trunk/third/xntp/authstuff/authcert.c @ 10832

/*
 * This file, and the certdata file, shamelessly stolen
 * from Phil Karn's DES implementation.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

#ifndef DES
# define        DES
#endif

#include "ntp_stdlib.h"

u_char ekeys[128];
u_char dkeys[128];

static  void    get8    P((u_int32 *));
static  void    put8    P((u_int32 *));

void
main()
{
        u_int32 key[2], plain[2], cipher[2], answer[2], temp;
        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++) {
                        temp = ntohl(cipher[i]);
                        if (temp != answer[i])
                                break;
                }

                fail = 0;
                if (i != 2) {
                        printf(" Encrypt FAIL");
                        fail++;
                }
                DESauth_des(cipher, dkeys);
                for (i = 0; i < 2; i++) {
                        temp = ntohl(cipher[i]);
                        if (temp != plain[i])
                                break;
                }
                if (i != 2) {
                        printf(" Decrypt FAIL");
                        fail++;
                }
                if (fail == 0)
                        printf(" OK");
                printf("\n");
        }
}

static void
get8(lp)
        u_int32 *lp;
{
        int t;
        u_int32 l[2];
        int i;

        l[0] = l[1] = 0;
        for (i = 0; i < 8; i++) {
                scanf("%2x", &t);
                if (feof(stdin))
                        exit(0);
                l[i / 4] <<= 8;
                l[i / 4] |= (u_int32)(t & 0xff);
        }
        *lp = l[0];
        *(lp + 1) = l[1];
}

static void
put8(lp)
        u_int32 *lp;
{
        int i;

        
        for(i = 0; i < 2; i++)
                printf("%08lx", (u_long)(*lp++));
}