mux/src/crypt/cert.cpp

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/*
 * This crypt(3) validation program shipped with UFC-crypt
 * is derived from one distributed with Phil Karns PD DES package.
 *
 * @(#)cert.c   1.8 11 Aug 1996
 */

#include <stdio.h>
#include "crypt.h"

int totfails = 0;

#if __STDC__ - 0
int main (int argc, char *argv[]);
void get8 (char *cp);
void put8 (char *cp);
void good_bye (void) __attribute__ ((noreturn));
#else
void get8(), put8();
#endif

void good_bye ()
{
  if(totfails == 0) {
    printf("Passed DES validation suite\n");
    exit(0);
  } else {
    printf("%d failures during DES validation suite!!!\n", totfails);
    exit(1);
  }
}

int
main(argc, argv)
     int argc;
     char *argv[];
{
    char key[64],plain[64],cipher[64],answer[64];
    int i;
    int test;
    int fail;

    for(test=0;!feof(stdin);test++){

        get8(key);
        printf(" K: "); put8(key);
        setkey(key);

        get8(plain);
        printf(" P: "); put8(plain);

        get8(answer);
        printf(" C: "); put8(answer);

        for(i=0;i<64;i++)
            cipher[i] = plain[i];
        encrypt(cipher, 0);

        for(i=0;i<64;i++)
            if(cipher[i] != answer[i])
                break;
        fail = 0;
        if(i != 64){
            printf(" Encrypt FAIL");
            fail++; totfails++;
        }

        encrypt(cipher, 1);

        for(i=0;i<64;i++)
            if(cipher[i] != plain[i])
                break;
        if(i != 64){
            printf(" Decrypt FAIL");
            fail++; totfails++;
        }

        if(fail == 0)
            printf(" OK");
        printf("\n");
    }
    good_bye();
}
void
get8(cp)
char *cp;
{
    int i,j,t;

    for(i=0;i<8;i++){
        scanf("%2x",&t);
        if(feof(stdin))
          good_bye();
        for(j=0; j<8 ; j++) {
          *cp++ = (t & (0x01 << (7-j))) != 0;
        }
    }
}
void
put8(cp)
char *cp;
{
    int i,j,t;

    for(i=0;i<8;i++){
      t = 0;
      for(j = 0; j<8; j++)
        t = (t<<1) | *cp++;
      printf("%02x", t);
    }
}

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