]>
Commit | Line | Data |
---|---|---|
d02b48c6 | 1 | /* crypto/des/des.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
ae5c8664 | 8 | * |
d02b48c6 RE |
9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
ae5c8664 | 15 | * |
d02b48c6 RE |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
ae5c8664 | 22 | * |
d02b48c6 RE |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
ae5c8664 | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
ae5c8664 | 40 | * |
d02b48c6 RE |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
ae5c8664 | 52 | * |
d02b48c6 RE |
53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
48b83a25 | 61 | #include <string.h> |
e766a681 | 62 | #include <openssl/opensslconf.h> |
bc36ee62 | 63 | #ifndef OPENSSL_SYS_MSDOS |
ae5c8664 MC |
64 | # ifndef OPENSSL_SYS_VMS |
65 | # include OPENSSL_UNISTD | |
66 | # else /* OPENSSL_SYS_VMS */ | |
67 | # ifdef __DECC | |
68 | # include <unistd.h> | |
69 | # else /* not __DECC */ | |
70 | # include <math.h> | |
71 | # endif /* __DECC */ | |
72 | # endif /* OPENSSL_SYS_VMS */ | |
73 | #else /* OPENSSL_SYS_MSDOS */ | |
74 | # include <io.h> | |
d02b48c6 RE |
75 | #endif |
76 | ||
77 | #include <time.h> | |
78 | #include "des_ver.h" | |
79 | ||
bc36ee62 | 80 | #ifdef OPENSSL_SYS_VMS |
ae5c8664 MC |
81 | # include <types.h> |
82 | # include <stat.h> | |
d02b48c6 | 83 | #else |
ae5c8664 MC |
84 | # ifndef _IRIX |
85 | # include <sys/types.h> | |
86 | # endif | |
87 | # include <sys/stat.h> | |
d02b48c6 | 88 | #endif |
ec577822 | 89 | #include <openssl/des.h> |
cfa3747b | 90 | #include <openssl/rand.h> |
2ed2d151 | 91 | #include <openssl/ui_compat.h> |
d02b48c6 | 92 | |
d02b48c6 RE |
93 | void usage(void); |
94 | void doencryption(void); | |
95 | int uufwrite(unsigned char *data, int size, unsigned int num, FILE *fp); | |
96 | void uufwriteEnd(FILE *fp); | |
ae5c8664 MC |
97 | int uufread(unsigned char *out, int size, unsigned int num, FILE *fp); |
98 | int uuencode(unsigned char *in, int num, unsigned char *out); | |
99 | int uudecode(unsigned char *in, int num, unsigned char *out); | |
100 | void DES_3cbc_encrypt(DES_cblock *input, DES_cblock *output, long length, | |
101 | DES_key_schedule sk1, DES_key_schedule sk2, | |
102 | DES_cblock *ivec1, DES_cblock *ivec2, int enc); | |
bc36ee62 | 103 | #ifdef OPENSSL_SYS_VMS |
ae5c8664 | 104 | # define EXIT(a) exit(a&0x10000000L) |
d02b48c6 | 105 | #else |
ae5c8664 | 106 | # define EXIT(a) exit(a) |
d02b48c6 RE |
107 | #endif |
108 | ||
109 | #define BUFSIZE (8*1024) | |
110 | #define VERIFY 1 | |
ae5c8664 MC |
111 | #define KEYSIZ 8 |
112 | #define KEYSIZB 1024 /* should hit tty line limit first :-) */ | |
113 | char key[KEYSIZB + 1]; | |
114 | int do_encrypt, longk = 0; | |
115 | FILE *DES_IN, *DES_OUT, *CKSUM_OUT; | |
d02b48c6 RE |
116 | char uuname[200]; |
117 | unsigned char uubuf[50]; | |
ae5c8664 MC |
118 | int uubufnum = 0; |
119 | #define INUUBUFN (45*100) | |
120 | #define OUTUUBUF (65*100) | |
d02b48c6 RE |
121 | unsigned char b[OUTUUBUF]; |
122 | unsigned char bb[300]; | |
ae5c8664 | 123 | DES_cblock cksum = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; |
d02b48c6 | 124 | |
ae5c8664 MC |
125 | char cksumname[200] = ""; |
126 | ||
127 | int vflag, cflag, eflag, dflag, kflag, bflag, fflag, sflag, uflag, flag3, | |
128 | hflag, error; | |
d02b48c6 | 129 | |
6b691a5c | 130 | int main(int argc, char **argv) |
ae5c8664 MC |
131 | { |
132 | int i; | |
133 | struct stat ins, outs; | |
134 | char *p; | |
135 | char *in = NULL, *out = NULL; | |
136 | ||
137 | vflag = cflag = eflag = dflag = kflag = hflag = bflag = fflag = sflag = | |
138 | uflag = flag3 = 0; | |
139 | error = 0; | |
140 | memset(key, 0, sizeof(key)); | |
141 | ||
142 | for (i = 1; i < argc; i++) { | |
143 | p = argv[i]; | |
144 | if ((p[0] == '-') && (p[1] != '\0')) { | |
145 | p++; | |
146 | while (*p) { | |
147 | switch (*(p++)) { | |
148 | case '3': | |
149 | flag3 = 1; | |
150 | longk = 1; | |
151 | break; | |
152 | case 'c': | |
153 | cflag = 1; | |
154 | strncpy(cksumname, p, 200); | |
155 | cksumname[sizeof(cksumname) - 1] = '\0'; | |
156 | p += strlen(cksumname); | |
157 | break; | |
158 | case 'C': | |
159 | cflag = 1; | |
160 | longk = 1; | |
161 | strncpy(cksumname, p, 200); | |
162 | cksumname[sizeof(cksumname) - 1] = '\0'; | |
163 | p += strlen(cksumname); | |
164 | break; | |
165 | case 'e': | |
166 | eflag = 1; | |
167 | break; | |
168 | case 'v': | |
169 | vflag = 1; | |
170 | break; | |
171 | case 'E': | |
172 | eflag = 1; | |
173 | longk = 1; | |
174 | break; | |
175 | case 'd': | |
176 | dflag = 1; | |
177 | break; | |
178 | case 'D': | |
179 | dflag = 1; | |
180 | longk = 1; | |
181 | break; | |
182 | case 'b': | |
183 | bflag = 1; | |
184 | break; | |
185 | case 'f': | |
186 | fflag = 1; | |
187 | break; | |
188 | case 's': | |
189 | sflag = 1; | |
190 | break; | |
191 | case 'u': | |
192 | uflag = 1; | |
193 | strncpy(uuname, p, 200); | |
194 | uuname[sizeof(uuname) - 1] = '\0'; | |
195 | p += strlen(uuname); | |
196 | break; | |
197 | case 'h': | |
198 | hflag = 1; | |
199 | break; | |
200 | case 'k': | |
201 | kflag = 1; | |
202 | if ((i + 1) == argc) { | |
203 | fputs("must have a key with the -k option\n", stderr); | |
204 | error = 1; | |
205 | } else { | |
206 | int j; | |
207 | ||
208 | i++; | |
209 | strncpy(key, argv[i], KEYSIZB); | |
210 | for (j = strlen(argv[i]) - 1; j >= 0; j--) | |
211 | argv[i][j] = '\0'; | |
212 | } | |
213 | break; | |
214 | default: | |
215 | fprintf(stderr, "'%c' unknown flag\n", p[-1]); | |
216 | error = 1; | |
217 | break; | |
218 | } | |
219 | } | |
220 | } else { | |
221 | if (in == NULL) | |
222 | in = argv[i]; | |
223 | else if (out == NULL) | |
224 | out = argv[i]; | |
225 | else | |
226 | error = 1; | |
227 | } | |
228 | } | |
229 | if (error) | |
230 | usage(); | |
231 | /*- | |
232 | * We either | |
233 | * do checksum or | |
234 | * do encrypt or | |
235 | * do decrypt or | |
236 | * do decrypt then ckecksum or | |
237 | * do checksum then encrypt | |
238 | */ | |
239 | if (((eflag + dflag) == 1) || cflag) { | |
240 | if (eflag) | |
241 | do_encrypt = DES_ENCRYPT; | |
242 | if (dflag) | |
243 | do_encrypt = DES_DECRYPT; | |
244 | } else { | |
245 | if (vflag) { | |
246 | #ifndef _Windows | |
247 | fprintf(stderr, "des(1) built with %s\n", libdes_version); | |
248 | #endif | |
249 | EXIT(1); | |
250 | } else | |
251 | usage(); | |
252 | } | |
253 | ||
254 | #ifndef _Windows | |
255 | if (vflag) | |
256 | fprintf(stderr, "des(1) built with %s\n", libdes_version); | |
257 | #endif | |
258 | if ((in != NULL) && (out != NULL) && | |
bc36ee62 | 259 | #ifndef OPENSSL_SYS_MSDOS |
ae5c8664 MC |
260 | (stat(in, &ins) != -1) && |
261 | (stat(out, &outs) != -1) && | |
262 | (ins.st_dev == outs.st_dev) && (ins.st_ino == outs.st_ino)) | |
263 | #else /* OPENSSL_SYS_MSDOS */ | |
264 | (strcmp(in, out) == 0)) | |
d02b48c6 | 265 | #endif |
ae5c8664 MC |
266 | { |
267 | fputs("input and output file are the same\n", stderr); | |
268 | EXIT(3); | |
269 | } | |
270 | ||
271 | if (!kflag) | |
272 | if (des_read_pw_string | |
273 | (key, KEYSIZB + 1, "Enter key:", eflag ? VERIFY : 0)) { | |
274 | fputs("password error\n", stderr); | |
275 | EXIT(2); | |
276 | } | |
277 | ||
278 | if (in == NULL) | |
279 | DES_IN = stdin; | |
280 | else if ((DES_IN = fopen(in, "r")) == NULL) { | |
281 | perror("opening input file"); | |
282 | EXIT(4); | |
283 | } | |
284 | ||
285 | CKSUM_OUT = stdout; | |
286 | if (out == NULL) { | |
287 | DES_OUT = stdout; | |
288 | CKSUM_OUT = stderr; | |
289 | } else if ((DES_OUT = fopen(out, "w")) == NULL) { | |
290 | perror("opening output file"); | |
291 | EXIT(5); | |
292 | } | |
bc36ee62 | 293 | #ifdef OPENSSL_SYS_MSDOS |
ae5c8664 MC |
294 | /* This should set the file to binary mode. */ |
295 | { | |
296 | # include <fcntl.h> | |
297 | if (!(uflag && dflag)) | |
298 | setmode(fileno(DES_IN), O_BINARY); | |
299 | if (!(uflag && eflag)) | |
300 | setmode(fileno(DES_OUT), O_BINARY); | |
301 | } | |
d02b48c6 RE |
302 | #endif |
303 | ||
ae5c8664 MC |
304 | doencryption(); |
305 | fclose(DES_IN); | |
306 | fclose(DES_OUT); | |
307 | EXIT(0); | |
308 | } | |
d02b48c6 | 309 | |
6b691a5c | 310 | void usage(void) |
ae5c8664 MC |
311 | { |
312 | char **u; | |
313 | static const char *Usage[] = { | |
314 | "des <options> [input-file [output-file]]", | |
315 | "options:", | |
316 | "-v : des(1) version number", | |
317 | "-e : encrypt using SunOS compatible user key to DES key conversion.", | |
318 | "-E : encrypt ", | |
319 | "-d : decrypt using SunOS compatible user key to DES key conversion.", | |
320 | "-D : decrypt ", | |
321 | "-c[ckname] : generate a cbc_cksum using SunOS compatible user key to", | |
322 | " DES key conversion and output to ckname (stdout default,", | |
323 | " stderr if data being output on stdout). The checksum is", | |
324 | " generated before encryption and after decryption if used", | |
325 | " in conjunction with -[eEdD].", | |
326 | "-C[ckname] : generate a cbc_cksum as for -c but compatible with -[ED].", | |
327 | "-k key : use key 'key'", | |
328 | "-h : the key that is entered will be a hexadecimal number", | |
329 | " that is used directly as the des key", | |
330 | "-u[uuname] : input file is uudecoded if -[dD] or output uuencoded data if -[eE]", | |
331 | " (uuname is the filename to put in the uuencode header).", | |
332 | "-b : encrypt using DES in ecb encryption mode, the default is cbc mode.", | |
333 | "-3 : encrypt using triple DES encryption. This uses 2 keys", | |
334 | " generated from the input key. If the input key is less", | |
335 | " than 8 characters long, this is equivalent to normal", | |
336 | " encryption. Default is triple cbc, -b makes it triple ecb.", | |
337 | NULL | |
338 | }; | |
339 | for (u = (char **)Usage; *u; u++) { | |
340 | fputs(*u, stderr); | |
341 | fputc('\n', stderr); | |
342 | } | |
343 | ||
344 | EXIT(1); | |
345 | } | |
d02b48c6 | 346 | |
6b691a5c | 347 | void doencryption(void) |
ae5c8664 | 348 | { |
d02b48c6 | 349 | #ifdef _LIBC |
ae5c8664 | 350 | extern unsigned long time(); |
d02b48c6 RE |
351 | #endif |
352 | ||
ae5c8664 MC |
353 | register int i; |
354 | DES_key_schedule ks, ks2; | |
355 | DES_cblock iv, iv2; | |
356 | char *p; | |
357 | int num = 0, j, k, l, rem, ll, len, last, ex = 0; | |
358 | DES_cblock kk, k2; | |
359 | FILE *O; | |
360 | int Exit = 0; | |
bc36ee62 | 361 | #ifndef OPENSSL_SYS_MSDOS |
ae5c8664 | 362 | static unsigned char buf[BUFSIZE + 8], obuf[BUFSIZE + 8]; |
d02b48c6 | 363 | #else |
ae5c8664 MC |
364 | static unsigned char *buf = NULL, *obuf = NULL; |
365 | ||
366 | if (buf == NULL) { | |
367 | if (((buf = OPENSSL_malloc(BUFSIZE + 8)) == NULL) || | |
368 | ((obuf = OPENSSL_malloc(BUFSIZE + 8)) == NULL)) { | |
369 | fputs("Not enough memory\n", stderr); | |
370 | Exit = 10; | |
371 | goto problems; | |
372 | } | |
373 | } | |
d02b48c6 RE |
374 | #endif |
375 | ||
ae5c8664 MC |
376 | if (hflag) { |
377 | j = (flag3 ? 16 : 8); | |
378 | p = key; | |
379 | for (i = 0; i < j; i++) { | |
380 | k = 0; | |
381 | if ((*p <= '9') && (*p >= '0')) | |
382 | k = (*p - '0') << 4; | |
383 | else if ((*p <= 'f') && (*p >= 'a')) | |
384 | k = (*p - 'a' + 10) << 4; | |
385 | else if ((*p <= 'F') && (*p >= 'A')) | |
386 | k = (*p - 'A' + 10) << 4; | |
387 | else { | |
388 | fputs("Bad hex key\n", stderr); | |
389 | Exit = 9; | |
390 | goto problems; | |
391 | } | |
392 | p++; | |
393 | if ((*p <= '9') && (*p >= '0')) | |
394 | k |= (*p - '0'); | |
395 | else if ((*p <= 'f') && (*p >= 'a')) | |
396 | k |= (*p - 'a' + 10); | |
397 | else if ((*p <= 'F') && (*p >= 'A')) | |
398 | k |= (*p - 'A' + 10); | |
399 | else { | |
400 | fputs("Bad hex key\n", stderr); | |
401 | Exit = 9; | |
402 | goto problems; | |
403 | } | |
404 | p++; | |
405 | if (i < 8) | |
406 | kk[i] = k; | |
407 | else | |
408 | k2[i - 8] = k; | |
409 | } | |
410 | DES_set_key_unchecked(&k2, &ks2); | |
411 | OPENSSL_cleanse(k2, sizeof(k2)); | |
412 | } else if (longk || flag3) { | |
413 | if (flag3) { | |
414 | DES_string_to_2keys(key, &kk, &k2); | |
415 | DES_set_key_unchecked(&k2, &ks2); | |
416 | OPENSSL_cleanse(k2, sizeof(k2)); | |
417 | } else | |
418 | DES_string_to_key(key, &kk); | |
419 | } else | |
420 | for (i = 0; i < KEYSIZ; i++) { | |
421 | l = 0; | |
422 | k = key[i]; | |
423 | for (j = 0; j < 8; j++) { | |
424 | if (k & 1) | |
425 | l++; | |
426 | k >>= 1; | |
427 | } | |
428 | if (l & 1) | |
429 | kk[i] = key[i] & 0x7f; | |
430 | else | |
431 | kk[i] = key[i] | 0x80; | |
432 | } | |
433 | ||
434 | DES_set_key_unchecked(&kk, &ks); | |
435 | OPENSSL_cleanse(key, sizeof(key)); | |
436 | OPENSSL_cleanse(kk, sizeof(kk)); | |
437 | /* woops - A bug that does not showup under unix :-( */ | |
438 | memset(iv, 0, sizeof(iv)); | |
439 | memset(iv2, 0, sizeof(iv2)); | |
440 | ||
441 | l = 1; | |
442 | rem = 0; | |
443 | /* first read */ | |
444 | if (eflag || (!dflag && cflag)) { | |
445 | for (;;) { | |
446 | num = l = fread(&(buf[rem]), 1, BUFSIZE, DES_IN); | |
447 | l += rem; | |
448 | num += rem; | |
449 | if (l < 0) { | |
450 | perror("read error"); | |
451 | Exit = 6; | |
452 | goto problems; | |
453 | } | |
454 | ||
455 | rem = l % 8; | |
456 | len = l - rem; | |
457 | if (feof(DES_IN)) { | |
458 | for (i = 7 - rem; i > 0; i--) | |
459 | RAND_pseudo_bytes(buf + l++, 1); | |
460 | buf[l++] = rem; | |
461 | ex = 1; | |
462 | len += rem; | |
463 | } else | |
464 | l -= rem; | |
465 | ||
466 | if (cflag) { | |
467 | DES_cbc_cksum(buf, &cksum, (long)len, &ks, &cksum); | |
468 | if (!eflag) { | |
469 | if (feof(DES_IN)) | |
470 | break; | |
471 | else | |
472 | continue; | |
473 | } | |
474 | } | |
475 | ||
476 | if (bflag && !flag3) | |
477 | for (i = 0; i < l; i += 8) | |
478 | DES_ecb_encrypt((DES_cblock *)&(buf[i]), | |
479 | (DES_cblock *)&(obuf[i]), | |
480 | &ks, do_encrypt); | |
481 | else if (flag3 && bflag) | |
482 | for (i = 0; i < l; i += 8) | |
483 | DES_ecb2_encrypt((DES_cblock *)&(buf[i]), | |
484 | (DES_cblock *)&(obuf[i]), | |
485 | &ks, &ks2, do_encrypt); | |
486 | else if (flag3 && !bflag) { | |
487 | char tmpbuf[8]; | |
488 | ||
489 | if (rem) | |
490 | memcpy(tmpbuf, &(buf[l]), (unsigned int)rem); | |
491 | DES_3cbc_encrypt((DES_cblock *)buf, (DES_cblock *)obuf, | |
492 | (long)l, ks, ks2, &iv, &iv2, do_encrypt); | |
493 | if (rem) | |
494 | memcpy(&(buf[l]), tmpbuf, (unsigned int)rem); | |
495 | } else { | |
496 | DES_cbc_encrypt(buf, obuf, (long)l, &ks, &iv, do_encrypt); | |
497 | if (l >= 8) | |
498 | memcpy(iv, &(obuf[l - 8]), 8); | |
499 | } | |
500 | if (rem) | |
501 | memcpy(buf, &(buf[l]), (unsigned int)rem); | |
502 | ||
503 | i = 0; | |
504 | while (i < l) { | |
505 | if (uflag) | |
506 | j = uufwrite(obuf, 1, (unsigned int)l - i, DES_OUT); | |
507 | else | |
508 | j = fwrite(obuf, 1, (unsigned int)l - i, DES_OUT); | |
509 | if (j == -1) { | |
510 | perror("Write error"); | |
511 | Exit = 7; | |
512 | goto problems; | |
513 | } | |
514 | i += j; | |
515 | } | |
516 | if (feof(DES_IN)) { | |
517 | if (uflag) | |
518 | uufwriteEnd(DES_OUT); | |
519 | break; | |
520 | } | |
521 | } | |
522 | } else { /* decrypt */ | |
523 | ||
524 | ex = 1; | |
525 | for (;;) { | |
526 | if (ex) { | |
527 | if (uflag) | |
528 | l = uufread(buf, 1, BUFSIZE, DES_IN); | |
529 | else | |
530 | l = fread(buf, 1, BUFSIZE, DES_IN); | |
531 | ex = 0; | |
532 | rem = l % 8; | |
533 | l -= rem; | |
534 | } | |
535 | if (l < 0) { | |
536 | perror("read error"); | |
537 | Exit = 6; | |
538 | goto problems; | |
539 | } | |
540 | ||
541 | if (bflag && !flag3) | |
542 | for (i = 0; i < l; i += 8) | |
543 | DES_ecb_encrypt((DES_cblock *)&(buf[i]), | |
544 | (DES_cblock *)&(obuf[i]), | |
545 | &ks, do_encrypt); | |
546 | else if (flag3 && bflag) | |
547 | for (i = 0; i < l; i += 8) | |
548 | DES_ecb2_encrypt((DES_cblock *)&(buf[i]), | |
549 | (DES_cblock *)&(obuf[i]), | |
550 | &ks, &ks2, do_encrypt); | |
551 | else if (flag3 && !bflag) { | |
552 | DES_3cbc_encrypt((DES_cblock *)buf, (DES_cblock *)obuf, | |
553 | (long)l, ks, ks2, &iv, &iv2, do_encrypt); | |
554 | } else { | |
555 | DES_cbc_encrypt(buf, obuf, (long)l, &ks, &iv, do_encrypt); | |
556 | if (l >= 8) | |
557 | memcpy(iv, &(buf[l - 8]), 8); | |
558 | } | |
559 | ||
560 | if (uflag) | |
561 | ll = uufread(&(buf[rem]), 1, BUFSIZE, DES_IN); | |
562 | else | |
563 | ll = fread(&(buf[rem]), 1, BUFSIZE, DES_IN); | |
564 | ll += rem; | |
565 | rem = ll % 8; | |
566 | ll -= rem; | |
567 | if (feof(DES_IN) && (ll == 0)) { | |
568 | last = obuf[l - 1]; | |
569 | ||
570 | if ((last > 7) || (last < 0)) { | |
571 | fputs("The file was not decrypted correctly.\n", stderr); | |
572 | Exit = 8; | |
573 | last = 0; | |
574 | } | |
575 | l = l - 8 + last; | |
576 | } | |
577 | i = 0; | |
578 | if (cflag) | |
579 | DES_cbc_cksum(obuf, | |
580 | (DES_cblock *)cksum, (long)l / 8 * 8, &ks, | |
581 | (DES_cblock *)cksum); | |
582 | while (i != l) { | |
583 | j = fwrite(obuf, 1, (unsigned int)l - i, DES_OUT); | |
584 | if (j == -1) { | |
585 | perror("Write error"); | |
586 | Exit = 7; | |
587 | goto problems; | |
588 | } | |
589 | i += j; | |
590 | } | |
591 | l = ll; | |
592 | if ((l == 0) && feof(DES_IN)) | |
593 | break; | |
594 | } | |
595 | } | |
596 | if (cflag) { | |
597 | l = 0; | |
598 | if (cksumname[0] != '\0') { | |
599 | if ((O = fopen(cksumname, "w")) != NULL) { | |
600 | CKSUM_OUT = O; | |
601 | l = 1; | |
602 | } | |
603 | } | |
604 | for (i = 0; i < 8; i++) | |
605 | fprintf(CKSUM_OUT, "%02X", cksum[i]); | |
606 | fprintf(CKSUM_OUT, "\n"); | |
607 | if (l) | |
608 | fclose(CKSUM_OUT); | |
609 | } | |
610 | problems: | |
611 | OPENSSL_cleanse(buf, sizeof(buf)); | |
612 | OPENSSL_cleanse(obuf, sizeof(obuf)); | |
613 | OPENSSL_cleanse(&ks, sizeof(ks)); | |
614 | OPENSSL_cleanse(&ks2, sizeof(ks2)); | |
615 | OPENSSL_cleanse(iv, sizeof(iv)); | |
616 | OPENSSL_cleanse(iv2, sizeof(iv2)); | |
617 | OPENSSL_cleanse(kk, sizeof(kk)); | |
618 | OPENSSL_cleanse(k2, sizeof(k2)); | |
619 | OPENSSL_cleanse(uubuf, sizeof(uubuf)); | |
620 | OPENSSL_cleanse(b, sizeof(b)); | |
621 | OPENSSL_cleanse(bb, sizeof(bb)); | |
622 | OPENSSL_cleanse(cksum, sizeof(cksum)); | |
623 | if (Exit) | |
624 | EXIT(Exit); | |
625 | } | |
d02b48c6 | 626 | |
6b691a5c UM |
627 | /* We ignore this parameter but it should be > ~50 I believe */ |
628 | int uufwrite(unsigned char *data, int size, unsigned int num, FILE *fp) | |
ae5c8664 MC |
629 | { |
630 | int i, j, left, rem, ret = num; | |
631 | static int start = 1; | |
632 | ||
633 | if (start) { | |
634 | fprintf(fp, "begin 600 %s\n", | |
635 | (uuname[0] == '\0') ? "text.d" : uuname); | |
636 | start = 0; | |
637 | } | |
638 | ||
639 | if (uubufnum) { | |
640 | if (uubufnum + num < 45) { | |
641 | memcpy(&(uubuf[uubufnum]), data, (unsigned int)num); | |
642 | uubufnum += num; | |
643 | return (num); | |
644 | } else { | |
645 | i = 45 - uubufnum; | |
646 | memcpy(&(uubuf[uubufnum]), data, (unsigned int)i); | |
647 | j = uuencode((unsigned char *)uubuf, 45, b); | |
648 | fwrite(b, 1, (unsigned int)j, fp); | |
649 | uubufnum = 0; | |
650 | data += i; | |
651 | num -= i; | |
652 | } | |
653 | } | |
654 | ||
655 | for (i = 0; i < (((int)num) - INUUBUFN); i += INUUBUFN) { | |
656 | j = uuencode(&(data[i]), INUUBUFN, b); | |
657 | fwrite(b, 1, (unsigned int)j, fp); | |
658 | } | |
659 | rem = (num - i) % 45; | |
660 | left = (num - i - rem); | |
661 | if (left) { | |
662 | j = uuencode(&(data[i]), left, b); | |
663 | fwrite(b, 1, (unsigned int)j, fp); | |
664 | i += left; | |
665 | } | |
666 | if (i != num) { | |
667 | memcpy(uubuf, &(data[i]), (unsigned int)rem); | |
668 | uubufnum = rem; | |
669 | } | |
670 | return (ret); | |
671 | } | |
d02b48c6 | 672 | |
6b691a5c | 673 | void uufwriteEnd(FILE *fp) |
ae5c8664 MC |
674 | { |
675 | int j; | |
676 | static const char *end = " \nend\n"; | |
677 | ||
678 | if (uubufnum != 0) { | |
679 | uubuf[uubufnum] = '\0'; | |
680 | uubuf[uubufnum + 1] = '\0'; | |
681 | uubuf[uubufnum + 2] = '\0'; | |
682 | j = uuencode(uubuf, uubufnum, b); | |
683 | fwrite(b, 1, (unsigned int)j, fp); | |
684 | } | |
685 | fwrite(end, 1, strlen(end), fp); | |
686 | } | |
687 | ||
688 | /* | |
689 | * int size: should always be > ~ 60; I actually ignore this parameter :-) | |
690 | */ | |
6b691a5c | 691 | int uufread(unsigned char *out, int size, unsigned int num, FILE *fp) |
ae5c8664 MC |
692 | { |
693 | int i, j, tot; | |
694 | static int done = 0; | |
695 | static int valid = 0; | |
696 | static int start = 1; | |
697 | ||
698 | if (start) { | |
699 | for (;;) { | |
700 | b[0] = '\0'; | |
701 | fgets((char *)b, 300, fp); | |
702 | if (b[0] == '\0') { | |
703 | fprintf(stderr, "no 'begin' found in uuencoded input\n"); | |
704 | return (-1); | |
705 | } | |
706 | if (strncmp((char *)b, "begin ", 6) == 0) | |
707 | break; | |
708 | } | |
709 | start = 0; | |
710 | } | |
711 | if (done) | |
712 | return (0); | |
713 | tot = 0; | |
714 | if (valid) { | |
715 | memcpy(out, bb, (unsigned int)valid); | |
716 | tot = valid; | |
717 | valid = 0; | |
718 | } | |
719 | for (;;) { | |
720 | b[0] = '\0'; | |
721 | fgets((char *)b, 300, fp); | |
722 | if (b[0] == '\0') | |
723 | break; | |
724 | i = strlen((char *)b); | |
725 | if ((b[0] == 'e') && (b[1] == 'n') && (b[2] == 'd')) { | |
726 | done = 1; | |
727 | while (!feof(fp)) { | |
728 | fgets((char *)b, 300, fp); | |
729 | } | |
730 | break; | |
731 | } | |
732 | i = uudecode(b, i, bb); | |
733 | if (i < 0) | |
734 | break; | |
735 | if ((i + tot + 8) > num) { | |
736 | /* num to copy to make it a multiple of 8 */ | |
737 | j = (num / 8 * 8) - tot - 8; | |
738 | memcpy(&(out[tot]), bb, (unsigned int)j); | |
739 | tot += j; | |
740 | memcpy(bb, &(bb[j]), (unsigned int)i - j); | |
741 | valid = i - j; | |
742 | break; | |
743 | } | |
744 | memcpy(&(out[tot]), bb, (unsigned int)i); | |
745 | tot += i; | |
746 | } | |
747 | return (tot); | |
748 | } | |
d02b48c6 RE |
749 | |
750 | #define ccc2l(c,l) (l =((DES_LONG)(*((c)++)))<<16, \ | |
ae5c8664 MC |
751 | l|=((DES_LONG)(*((c)++)))<< 8, \ |
752 | l|=((DES_LONG)(*((c)++)))) | |
d02b48c6 RE |
753 | |
754 | #define l2ccc(l,c) (*((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
755 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
756 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
757 | ||
6b691a5c | 758 | int uuencode(unsigned char *in, int num, unsigned char *out) |
ae5c8664 MC |
759 | { |
760 | int j, i, n, tot = 0; | |
761 | DES_LONG l; | |
762 | register unsigned char *p; | |
763 | p = out; | |
764 | ||
765 | for (j = 0; j < num; j += 45) { | |
766 | if (j + 45 > num) | |
767 | i = (num - j); | |
768 | else | |
769 | i = 45; | |
770 | *(p++) = i + ' '; | |
771 | for (n = 0; n < i; n += 3) { | |
772 | ccc2l(in, l); | |
773 | *(p++) = ((l >> 18) & 0x3f) + ' '; | |
774 | *(p++) = ((l >> 12) & 0x3f) + ' '; | |
775 | *(p++) = ((l >> 6) & 0x3f) + ' '; | |
776 | *(p++) = ((l) & 0x3f) + ' '; | |
777 | tot += 4; | |
778 | } | |
779 | *(p++) = '\n'; | |
780 | tot += 2; | |
781 | } | |
782 | *p = '\0'; | |
783 | l = 0; | |
784 | return (tot); | |
785 | } | |
d02b48c6 | 786 | |
6b691a5c | 787 | int uudecode(unsigned char *in, int num, unsigned char *out) |
ae5c8664 MC |
788 | { |
789 | int j, i, k; | |
790 | unsigned int n = 0, space = 0; | |
791 | DES_LONG l; | |
792 | DES_LONG w, x, y, z; | |
793 | unsigned int blank = (unsigned int)'\n' - ' '; | |
794 | ||
795 | for (j = 0; j < num;) { | |
796 | n = *(in++) - ' '; | |
797 | if (n == blank) { | |
798 | n = 0; | |
799 | in--; | |
800 | } | |
801 | if (n > 60) { | |
802 | fprintf(stderr, "uuencoded line length too long\n"); | |
803 | return (-1); | |
804 | } | |
805 | j++; | |
806 | ||
807 | for (i = 0; i < n; j += 4, i += 3) { | |
808 | /* | |
809 | * the following is for cases where spaces are removed from | |
810 | * lines. | |
811 | */ | |
812 | if (space) { | |
813 | w = x = y = z = 0; | |
814 | } else { | |
815 | w = *(in++) - ' '; | |
816 | x = *(in++) - ' '; | |
817 | y = *(in++) - ' '; | |
818 | z = *(in++) - ' '; | |
819 | } | |
820 | if ((w > 63) || (x > 63) || (y > 63) || (z > 63)) { | |
821 | k = 0; | |
822 | if (w == blank) | |
823 | k = 1; | |
824 | if (x == blank) | |
825 | k = 2; | |
826 | if (y == blank) | |
827 | k = 3; | |
828 | if (z == blank) | |
829 | k = 4; | |
830 | space = 1; | |
831 | switch (k) { | |
832 | case 1: | |
833 | w = 0; | |
834 | in--; | |
835 | case 2: | |
836 | x = 0; | |
837 | in--; | |
838 | case 3: | |
839 | y = 0; | |
840 | in--; | |
841 | case 4: | |
842 | z = 0; | |
843 | in--; | |
844 | break; | |
845 | case 0: | |
846 | space = 0; | |
847 | fprintf(stderr, "bad uuencoded data values\n"); | |
848 | w = x = y = z = 0; | |
849 | return (-1); | |
850 | break; | |
851 | } | |
852 | } | |
853 | l = (w << 18) | (x << 12) | (y << 6) | (z); | |
854 | l2ccc(l, out); | |
855 | } | |
856 | if (*(in++) != '\n') { | |
857 | fprintf(stderr, "missing nl in uuencoded line\n"); | |
858 | w = x = y = z = 0; | |
859 | return (-1); | |
860 | } | |
861 | j++; | |
862 | } | |
863 | *out = '\0'; | |
864 | w = x = y = z = 0; | |
865 | return (n); | |
866 | } |