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