crypt/cert.c

   1
   2 /*
   3  * This crypt(3) validation program shipped with UFC-crypt
   4  * is derived from one distributed with Phil Karns PD DES package.
   5  *
   6  * @(#)cert.c   1.8 11 Aug 1996
   7  */
   8
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include "crypt.h"
  12
  13 int totfails = 0;
  14
  15 #if __STDC__ - 0
  16 int main (int argc, char *argv[]);
  17 void get8 (char *cp);
  18 void put8 (char *cp);
  19 void good_bye (void) __attribute__ ((noreturn));
  20 #else
  21 void get8(), put8();
  22 #endif
  23
  24 void good_bye ()
  25 {
  26   if(totfails == 0) {
  27     printf("Passed DES validation suite\n");
  28     exit(0);
  29   } else {
  30     printf("%d failures during DES validation suite!!!\n", totfails);
  31     exit(1);
  32   }
  33 }
  34
  35 int
  36 main(argc, argv)
  37      int argc;
  38      char *argv[];
  39 {
  40         char key[64],plain[64],cipher[64],answer[64];
  41         int i;
  42         int test;
  43         int fail;
  44
  45         for(test=0;!feof(stdin);test++){
  46
  47                 get8(key);
  48                 printf(" K: "); put8(key);
  49                 setkey(key);
  50
  51                 get8(plain);
  52                 printf(" P: "); put8(plain);
  53
  54                 get8(answer);
  55                 printf(" C: "); put8(answer);
  56
  57                 for(i=0;i<64;i++)
  58                         cipher[i] = plain[i];
  59                 encrypt(cipher, 0);
  60
  61                 for(i=0;i<64;i++)
  62                         if(cipher[i] != answer[i])
  63                                 break;
  64                 fail = 0;
  65                 if(i != 64){
  66                         printf(" Encrypt FAIL");
  67                         fail++; totfails++;
  68                 }
  69
  70                 encrypt(cipher, 1);
  71
  72                 for(i=0;i<64;i++)
  73                         if(cipher[i] != plain[i])
  74                                 break;
  75                 if(i != 64){
  76                         printf(" Decrypt FAIL");
  77                         fail++; totfails++;
  78                 }
  79
  80                 if(fail == 0)
  81                         printf(" OK");
  82                 printf("\n");
  83         }
  84         good_bye();
  85 }
  86 void
  87 get8(cp)
  88 char *cp;
  89 {
  90         int i,j,t;
  91
  92         for(i=0;i<8;i++){
  93                 scanf("%2x",&t);
  94                 if(feof(stdin))
  95                   good_bye();
  96                 for(j=0; j<8 ; j++) {
  97                   *cp++ = (t & (0x01 << (7-j))) != 0;
  98                 }
  99         }
 100 }
 101 void
 102 put8(cp)
 103 char *cp;
 104 {
 105         int i,j,t;
 106
 107         for(i=0;i<8;i++){
 108           t = 0;
 109           for(j = 0; j<8; j++)
 110             t = (t<<1) | *cp++;
 111           printf("%02x", t);
 112         }
 113 }