4 * Copyright 1988,1990 by the Massachusetts Institute of Technology.
7 * Export of this software from the United States of America may
8 * require a specific license from the United States Government.
9 * It is the responsibility of any person or organization contemplating
10 * export to obtain such a license before exporting.
12 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
13 * distribute this software and its documentation for any purpose and
14 * without fee is hereby granted, provided that the above copyright
15 * notice appear in all copies and that both that copyright notice and
16 * this permission notice appear in supporting documentation, and that
17 * the name of M.I.T. not be used in advertising or publicity pertaining
18 * to distribution of the software without specific, written prior
19 * permission. M.I.T. makes no representations about the suitability of
20 * this software for any purpose. It is provided "as is" without express
21 * or implied warranty.
24 * Program to test the correctness of the DES library
27 * exit returns 0 ==> success
36 extern char *errmsg();
38 extern int des_string_to_key();
39 extern int des_key_sched();
40 extern int des_ecb_encrypt();
41 extern int des_cbc_encrypt();
51 unsigned char cipher_text[64];
52 unsigned char clear_text[64] = "Now is the time for all " ;
53 unsigned char clear_text2[64] = "7654321 Now is the time for ";
54 unsigned char clear_text3[64] = {2,0,0,0, 1,0,0,0};
55 unsigned char output[64];
56 unsigned char zero_text[8] = {0x0,0,0,0,0,0,0,0};
57 unsigned char msb_text[8] = {0x0,0,0,0, 0,0,0,0x40}; /* to ANSI MSB */
60 /* 0x0123456789abcdef */
61 unsigned char default_key[8] = {
62 0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef
64 unsigned char key2[8] = { 0x08,0x19,0x2a,0x3b,0x4c,0x5d,0x6e,0x7f };
65 unsigned char key3[8] = { 0x80,1,1,1,1,1,1,1 };
67 unsigned char default_ivec[8] = {
68 0x12,0x34,0x56,0x78,0x90,0xab,0xcd,0xef
71 unsigned char zero_key[8] = {1,1,1,1,1,1,1,1}; /* just parity bits */
76 * plaintext = 0, key = 0, cipher = 0x8ca64de9c1b123a7 (or is it a 1?)
83 /* Local Declarations */
86 progname=argv[0]; /* salt away invoking program */
88 /* Assume a long is four bytes */
89 if (sizeof(long) != 4) {
90 printf("\nERROR, size of long is %d",sizeof(long));
94 while (--argc > 0 && (*++argv)[0] == '-')
95 for (i=1; argv[0][i] != '\0'; i++) {
112 printf("%s: illegal flag \"%c\" ",
113 progname,argv[0][i]);
119 fprintf(stderr, "Usage: %s [-dmz]\n", progname);
123 /* use known input and key */
125 /* ECB zero text zero key */
128 des_key_sched(zero_key,KS);
129 printf("plaintext = key = 0, cipher = 0x8ca64de9c1b123a7\n");
130 do_encrypt(input,cipher_text);
131 printf("\tcipher = (low to high bytes)\n\t\t");
132 for (j = 0; j<=7; j++)
133 printf("%02x ",cipher_text[j]);
135 do_decrypt(output,cipher_text);
141 des_key_sched(key3,KS);
142 printf("plaintext = 0x00 00 00 00 00 00 00 40, ");
143 printf("key = 0, cipher = 0x??\n");
144 do_encrypt(input,cipher_text);
145 printf("\tcipher = (low to high bytes)\n\t\t");
146 for (j = 0; j<=7; j++) {
147 printf("%02x ",cipher_text[j]);
150 do_decrypt(output,cipher_text);
154 /* ECB mode Davies and Price */
157 des_key_sched(key2,KS);
158 printf("Examples per FIPS publication 81, keys ivs and cipher\n");
159 printf("in hex. These are the correct answers, see below for\n");
160 printf("the actual answers.\n\n");
161 printf("Examples per Davies and Price.\n\n");
162 printf("EXAMPLE ECB\tkey = 08192a3b4c5d6e7f\n");
163 printf("\tclear = 0\n");
164 printf("\tcipher = 25 dd ac 3e 96 17 64 67\n");
165 printf("ACTUAL ECB\n");
166 printf("\tclear \"%s\"\n", input);
167 do_encrypt(input,cipher_text);
168 printf("\tcipher = (low to high bytes)\n\t\t");
169 for (j = 0; j<=7; j++)
170 printf("%02x ",cipher_text[j]);
172 do_decrypt(output,cipher_text);
177 des_key_sched(default_key,KS);
180 printf("EXAMPLE ECB\tkey = 0123456789abcdef\n");
181 printf("\tclear = \"Now is the time for all \"\n");
182 printf("\tcipher = 3f a4 0e 8a 98 4d 48 15 ...\n");
183 printf("ACTUAL ECB\n\tclear \"%s\"",input);
184 do_encrypt(input,cipher_text);
185 printf("\n\tcipher = (low to high bytes)\n\t\t");
186 for (j = 0; j<=7; j++) {
187 printf("%02x ",cipher_text[j]);
190 do_decrypt(output,cipher_text);
194 printf("EXAMPLE CBC\tkey = 0123456789abcdef");
195 printf("\tiv = 1234567890abcdef\n");
196 printf("\tclear = \"Now is the time for all \"\n");
197 printf("\tcipher =\te5 c7 cd de 87 2b f2 7c\n");
198 printf("\t\t\t43 e9 34 00 8c 38 9c 0f\n");
199 printf("\t\t\t68 37 88 49 9a 7c 05 f6\n");
201 printf("ACTUAL CBC\n\tclear \"%s\"\n",input);
202 in_length = strlen(input);
203 des_cbc_encrypt(input,cipher_text,(long) in_length,KS,ivec,1);
204 printf("\tciphertext = (low to high bytes)\n");
205 for (i = 0; i <= 7; i++) {
207 for (j = 0; j <= 7; j++) {
208 printf("%02x ",cipher_text[i*8+j]);
212 des_cbc_encrypt(cipher_text,clear_text,(long) in_length,KS,ivec,0);
213 printf("\tdecrypted clear_text = \"%s\"\n",clear_text);
215 printf("EXAMPLE CBC checksum");
216 printf("\tkey = 0123456789abcdef\tiv = 1234567890abcdef\n");
217 printf("\tclear =\t\t\"7654321 Now is the time for \"\n");
218 printf("\tchecksum\t58 d2 e7 7e 86 06 27 33, ");
219 printf("or some part thereof\n");
221 des_cbc_cksum(input,cipher_text,(long) strlen(input),KS,ivec,1);
222 printf("ACTUAL CBC checksum\n");
223 printf("\t\tencrypted cksum = (low to high bytes)\n\t\t");
224 for (j = 0; j<=7; j++)
225 printf("%02x ",cipher_text[j]);
233 register old,new,i,j;
234 /* flips the bit order within each byte from 0 lsb to 0 msb */
235 for (i = 0; i<=7; i++) {
238 for (j = 0; j<=7; j++) {
255 for (i =1; i<=nflag; i++) {
256 des_ecb_encrypt(in,out,KS,1);
258 printf("\nclear %s\n",in);
259 for (j = 0; j<=7; j++)
260 printf("%02 X ",in[j] & 0xff);
262 for (j = 0; j<=7; j++)
263 printf("%02X ",out[j] & 0xff);
271 /* try to invert it */
273 for (i =1; i<=nflag; i++) {
274 des_ecb_encrypt(out,in,KS,0);
276 printf("clear %s\n",in);
277 for (j = 0; j<=7; j++)
278 printf("%02X ",in[j] & 0xff);
280 for (j = 0; j<=7; j++)
281 printf("%02X ",out[j] & 0xff);