/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */ /* lib/crypto/builtin/des/destest.c */ /* * Copyright 1990,1991 by the Massachusetts Institute of Technology. * All Rights Reserved. * * Export of this software from the United States of America may * require a specific license from the United States Government. * It is the responsibility of any person or organization contemplating * export to obtain such a license before exporting. * * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and * distribute this software and its documentation for any purpose and * without fee is hereby granted, provided that the above copyright * notice appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, and that * the name of M.I.T. not be used in advertising or publicity pertaining * to distribution of the software without specific, written prior * permission. Furthermore if you modify this software you must label * your software as modified software and not distribute it in such a * fashion that it might be confused with the original M.I.T. software. * M.I.T. makes no representations about the suitability of * this software for any purpose. It is provided "as is" without express * or implied warranty. */ /* * Copyright (C) 1998 by the FundsXpress, INC. * * All rights reserved. * * Export of this software from the United States of America may require * a specific license from the United States Government. It is the * responsibility of any person or organization contemplating export to * obtain such a license before exporting. * * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and * distribute this software and its documentation for any purpose and * without fee is hereby granted, provided that the above copyright * notice appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation, and that * the name of FundsXpress. not be used in advertising or publicity pertaining * to distribution of the software without specific, written prior * permission. FundsXpress makes no representations about the suitability of * this software for any purpose. It is provided "as is" without express * or implied warranty. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* Test a DES implementation against known inputs & outputs. */ #include "des_int.h" #include #include void convert (char *, unsigned char []); void des_cblock_print_file (mit_des_cblock, FILE *); krb5_octet zeroblock[8] = {0,0,0,0,0,0,0,0}; int main(argc, argv) int argc; char *argv[]; { char block1[17], block2[17], block3[17]; /* Force tests of unaligned accesses. */ union { unsigned char c[8*4+3]; long l; } u; unsigned char *ioblocks = u.c; unsigned char *input = ioblocks+1; unsigned char *output = ioblocks+10; unsigned char *output2 = ioblocks+19; unsigned char *key = ioblocks+27; mit_des_key_schedule sched; int num = 0; int retval; int error = 0; while (scanf("%16s %16s %16s", block1, block2, block3) == 3) { convert(block1, key); convert(block2, input); convert(block3, output); retval = mit_des_key_sched(key, sched); if (retval) { fprintf(stderr, "des test: can't process key: %d\n", retval); fprintf(stderr, "des test: %s %s %s\n", block1, block2, block3); exit(1); } mit_des_cbc_encrypt((const mit_des_cblock *) input, (mit_des_cblock *) output2, 8, sched, zeroblock, 1); if (memcmp((char *)output2, (char *)output, 8)) { fprintf(stderr, "DES ENCRYPT ERROR, key %s, text %s, real cipher %s, computed cyphertext %02X%02X%02X%02X%02X%02X%02X%02X\n", block1, block2, block3, output2[0],output2[1],output2[2],output2[3], output2[4],output2[5],output2[6],output2[7]); error++; } /* * Now try decrypting.... */ mit_des_cbc_encrypt((const mit_des_cblock *) output, (mit_des_cblock *) output2, 8, sched, zeroblock, 0); if (memcmp((char *)output2, (char *)input, 8)) { fprintf(stderr, "DES DECRYPT ERROR, key %s, text %s, real cipher %s, computed cleartext %02X%02X%02X%02X%02X%02X%02X%02X\n", block1, block2, block3, output2[0],output2[1],output2[2],output2[3], output2[4],output2[5],output2[6],output2[7]); error++; } num++; } if (error) printf("destest: failed to pass the test\n"); else printf("destest: %d tests passed successfully\n", num); exit( (error > 256 && error % 256) ? 1 : error); } int value[128] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, }; void convert(text, cblock) char *text; unsigned char cblock[]; { int i; for (i = 0; i < 8; i++) { if (!isascii((unsigned char)text[i * 2])) abort (); if (value[(int) text[i*2]] == -1 || value[(int) text[i*2+1]] == -1) { printf("Bad value byte %d in %s\n", i, text); exit(1); } cblock[i] = 16*value[(int) text[i*2]] + value[(int) text[i*2+1]]; } return; } /* * Fake out the DES library, for the purposes of testing. */ int mit_des_is_weak_key(key) mit_des_cblock key; { return 0; /* fake it out for testing */ } void des_cblock_print_file(x, fp) mit_des_cblock x; FILE *fp; { unsigned char *y = (unsigned char *) x; int i = 0; fprintf(fp," 0x { "); while (i++ < 8) { fprintf(fp,"%x",*y++); if (i < 8) fprintf(fp,", "); } fprintf(fp," }"); } #define smask(step) ((1<>step)&smask(step))) #define parity_char(x) pstep(pstep(pstep((x),4),2),1) /* * des_check_key_parity: returns true iff key has the correct des parity. * See des_fix_key_parity for the definition of * correct des parity. */ int mit_des_check_key_parity(key) mit_des_cblock key; { unsigned int i; for (i=0; i