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d02b48c6 | 1 | /* apps/enc.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> | |
61 | #include <string.h> | |
62 | #include "apps.h" | |
ec577822 BM |
63 | #include <openssl/bio.h> |
64 | #include <openssl/err.h> | |
65 | #include <openssl/evp.h> | |
66 | #include <openssl/objects.h> | |
67 | #include <openssl/x509.h> | |
fd699ac5 | 68 | #include <openssl/rand.h> |
ec577822 | 69 | #include <openssl/pem.h> |
fb2f9f26 | 70 | #ifndef OPENSSL_NO_COMP |
ae5c8664 | 71 | # include <openssl/comp.h> |
fb2f9f26 | 72 | #endif |
646d5695 | 73 | #include <ctype.h> |
d02b48c6 | 74 | |
ae5c8664 | 75 | int set_hex(char *in, unsigned char *out, int size); |
d02b48c6 RE |
76 | #undef SIZE |
77 | #undef BSIZE | |
78 | #undef PROG | |
79 | ||
ae5c8664 MC |
80 | #define SIZE (512) |
81 | #define BSIZE (8*1024) | |
82 | #define PROG enc_main | |
d02b48c6 | 83 | |
2566388c P |
84 | struct doall_enc_ciphers { |
85 | BIO *bio; | |
86 | int n; | |
87 | }; | |
88 | ||
89 | static void show_ciphers(const OBJ_NAME *name, void *arg) | |
ae5c8664 | 90 | { |
2566388c | 91 | struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; |
08330a12 | 92 | const EVP_CIPHER *cipher; |
646d5695 | 93 | |
ae5c8664 MC |
94 | if (!islower((unsigned char)*name->name)) |
95 | return; | |
646d5695 | 96 | |
201015ee P |
97 | /* Filter out ciphers that we cannot use */ |
98 | cipher = EVP_get_cipherbyname(name->name); | |
99 | if (cipher == NULL || | |
100 | (EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 || | |
101 | EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE) | |
102 | return; | |
103 | ||
2566388c P |
104 | BIO_printf(dec->bio, "-%-25s", name->name); |
105 | if (++dec->n == 3) { | |
106 | BIO_printf(dec->bio, "\n"); | |
107 | dec->n = 0; | |
ae5c8664 | 108 | } else |
2566388c | 109 | BIO_printf(dec->bio, " "); |
ae5c8664 | 110 | } |
646d5695 | 111 | |
667ac4ec RE |
112 | int MAIN(int, char **); |
113 | ||
6b691a5c | 114 | int MAIN(int argc, char **argv) |
ae5c8664 MC |
115 | { |
116 | static const char magic[] = "Salted__"; | |
c6738fd2 | 117 | char mbuf[sizeof(magic) - 1]; |
ae5c8664 MC |
118 | char *strbuf = NULL; |
119 | unsigned char *buff = NULL, *bufsize = NULL; | |
120 | int bsize = BSIZE, verbose = 0; | |
121 | int ret = 1, inl; | |
122 | int nopad = 0; | |
123 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; | |
124 | unsigned char salt[PKCS5_SALT_LEN]; | |
125 | char *str = NULL, *passarg = NULL, *pass = NULL; | |
126 | char *hkey = NULL, *hiv = NULL, *hsalt = NULL; | |
127 | char *md = NULL; | |
128 | int enc = 1, printkey = 0, i, base64 = 0; | |
8931b30d | 129 | #ifdef ZLIB |
ae5c8664 MC |
130 | int do_zlib = 0; |
131 | BIO *bzl = NULL; | |
8931b30d | 132 | #endif |
ae5c8664 MC |
133 | int debug = 0, olb64 = 0, nosalt = 0; |
134 | const EVP_CIPHER *cipher = NULL, *c; | |
135 | EVP_CIPHER_CTX *ctx = NULL; | |
136 | char *inf = NULL, *outf = NULL; | |
137 | BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = | |
138 | NULL, *wbio = NULL; | |
dfee50ec | 139 | #define PROG_NAME_SIZE 39 |
ae5c8664 | 140 | char pname[PROG_NAME_SIZE + 1]; |
ae5c8664 | 141 | char *engine = NULL; |
aa01b82c | 142 | ENGINE *e = NULL; |
ae5c8664 MC |
143 | const EVP_MD *dgst = NULL; |
144 | int non_fips_allow = 0; | |
2566388c | 145 | struct doall_enc_ciphers dec; |
d02b48c6 | 146 | |
ae5c8664 | 147 | apps_startup(); |
d02b48c6 | 148 | |
ae5c8664 MC |
149 | if (bio_err == NULL) |
150 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
151 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
d02b48c6 | 152 | |
ae5c8664 MC |
153 | if (!load_config(bio_err, NULL)) |
154 | goto end; | |
3647bee2 | 155 | |
ae5c8664 | 156 | /* first check the program name */ |
c6738fd2 | 157 | program_name(argv[0], pname, sizeof(pname)); |
ae5c8664 MC |
158 | if (strcmp(pname, "base64") == 0) |
159 | base64 = 1; | |
8931b30d | 160 | #ifdef ZLIB |
ae5c8664 MC |
161 | if (strcmp(pname, "zlib") == 0) |
162 | do_zlib = 1; | |
8931b30d | 163 | #endif |
d02b48c6 | 164 | |
ae5c8664 | 165 | cipher = EVP_get_cipherbyname(pname); |
8931b30d | 166 | #ifdef ZLIB |
ae5c8664 MC |
167 | if (!do_zlib && !base64 && (cipher == NULL) |
168 | && (strcmp(pname, "enc") != 0)) | |
8931b30d | 169 | #else |
ae5c8664 | 170 | if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0)) |
8931b30d | 171 | #endif |
ae5c8664 MC |
172 | { |
173 | BIO_printf(bio_err, "%s is an unknown cipher\n", pname); | |
174 | goto bad; | |
175 | } | |
176 | ||
177 | argc--; | |
178 | argv++; | |
179 | while (argc >= 1) { | |
180 | if (strcmp(*argv, "-e") == 0) | |
181 | enc = 1; | |
182 | else if (strcmp(*argv, "-in") == 0) { | |
183 | if (--argc < 1) | |
184 | goto bad; | |
185 | inf = *(++argv); | |
186 | } else if (strcmp(*argv, "-out") == 0) { | |
187 | if (--argc < 1) | |
188 | goto bad; | |
189 | outf = *(++argv); | |
190 | } else if (strcmp(*argv, "-pass") == 0) { | |
191 | if (--argc < 1) | |
192 | goto bad; | |
193 | passarg = *(++argv); | |
194 | } | |
0b13e9f0 | 195 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
196 | else if (strcmp(*argv, "-engine") == 0) { |
197 | if (--argc < 1) | |
198 | goto bad; | |
199 | engine = *(++argv); | |
200 | } | |
0b13e9f0 | 201 | #endif |
ae5c8664 MC |
202 | else if (strcmp(*argv, "-d") == 0) |
203 | enc = 0; | |
204 | else if (strcmp(*argv, "-p") == 0) | |
205 | printkey = 1; | |
206 | else if (strcmp(*argv, "-v") == 0) | |
207 | verbose = 1; | |
208 | else if (strcmp(*argv, "-nopad") == 0) | |
209 | nopad = 1; | |
210 | else if (strcmp(*argv, "-salt") == 0) | |
211 | nosalt = 0; | |
212 | else if (strcmp(*argv, "-nosalt") == 0) | |
213 | nosalt = 1; | |
214 | else if (strcmp(*argv, "-debug") == 0) | |
215 | debug = 1; | |
216 | else if (strcmp(*argv, "-P") == 0) | |
217 | printkey = 2; | |
218 | else if (strcmp(*argv, "-A") == 0) | |
219 | olb64 = 1; | |
220 | else if (strcmp(*argv, "-a") == 0) | |
221 | base64 = 1; | |
222 | else if (strcmp(*argv, "-base64") == 0) | |
223 | base64 = 1; | |
8931b30d | 224 | #ifdef ZLIB |
ae5c8664 MC |
225 | else if (strcmp(*argv, "-z") == 0) |
226 | do_zlib = 1; | |
8931b30d | 227 | #endif |
ae5c8664 MC |
228 | else if (strcmp(*argv, "-bufsize") == 0) { |
229 | if (--argc < 1) | |
230 | goto bad; | |
231 | bufsize = (unsigned char *)*(++argv); | |
232 | } else if (strcmp(*argv, "-k") == 0) { | |
233 | if (--argc < 1) | |
234 | goto bad; | |
235 | str = *(++argv); | |
236 | } else if (strcmp(*argv, "-kfile") == 0) { | |
237 | static char buf[128]; | |
238 | FILE *infile; | |
239 | char *file; | |
240 | ||
241 | if (--argc < 1) | |
242 | goto bad; | |
243 | file = *(++argv); | |
244 | infile = fopen(file, "r"); | |
245 | if (infile == NULL) { | |
246 | BIO_printf(bio_err, "unable to read key from '%s'\n", file); | |
247 | goto bad; | |
248 | } | |
249 | buf[0] = '\0'; | |
c6738fd2 | 250 | if (!fgets(buf, sizeof(buf), infile)) { |
ae5c8664 MC |
251 | BIO_printf(bio_err, "unable to read key from '%s'\n", file); |
252 | goto bad; | |
253 | } | |
254 | fclose(infile); | |
255 | i = strlen(buf); | |
256 | if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r'))) | |
257 | buf[--i] = '\0'; | |
258 | if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r'))) | |
259 | buf[--i] = '\0'; | |
260 | if (i < 1) { | |
261 | BIO_printf(bio_err, "zero length password\n"); | |
262 | goto bad; | |
263 | } | |
264 | str = buf; | |
265 | } else if (strcmp(*argv, "-K") == 0) { | |
266 | if (--argc < 1) | |
267 | goto bad; | |
268 | hkey = *(++argv); | |
269 | } else if (strcmp(*argv, "-S") == 0) { | |
270 | if (--argc < 1) | |
271 | goto bad; | |
272 | hsalt = *(++argv); | |
273 | } else if (strcmp(*argv, "-iv") == 0) { | |
274 | if (--argc < 1) | |
275 | goto bad; | |
276 | hiv = *(++argv); | |
277 | } else if (strcmp(*argv, "-md") == 0) { | |
278 | if (--argc < 1) | |
279 | goto bad; | |
280 | md = *(++argv); | |
281 | } else if (strcmp(*argv, "-non-fips-allow") == 0) | |
282 | non_fips_allow = 1; | |
283 | else if ((argv[0][0] == '-') && | |
284 | ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) { | |
285 | cipher = c; | |
286 | } else if (strcmp(*argv, "-none") == 0) | |
287 | cipher = NULL; | |
288 | else { | |
289 | BIO_printf(bio_err, "unknown option '%s'\n", *argv); | |
290 | bad: | |
291 | BIO_printf(bio_err, "options are\n"); | |
292 | BIO_printf(bio_err, "%-14s input file\n", "-in <file>"); | |
293 | BIO_printf(bio_err, "%-14s output file\n", "-out <file>"); | |
294 | BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>"); | |
295 | BIO_printf(bio_err, "%-14s encrypt\n", "-e"); | |
296 | BIO_printf(bio_err, "%-14s decrypt\n", "-d"); | |
297 | BIO_printf(bio_err, | |
298 | "%-14s base64 encode/decode, depending on encryption flag\n", | |
299 | "-a/-base64"); | |
300 | BIO_printf(bio_err, "%-14s passphrase is the next argument\n", | |
301 | "-k"); | |
302 | BIO_printf(bio_err, | |
303 | "%-14s passphrase is the first line of the file argument\n", | |
304 | "-kfile"); | |
305 | BIO_printf(bio_err, | |
306 | "%-14s the next argument is the md to use to create a key\n", | |
307 | "-md"); | |
308 | BIO_printf(bio_err, | |
309 | "%-14s from a passphrase. One of md2, md5, sha or sha1\n", | |
310 | ""); | |
311 | BIO_printf(bio_err, "%-14s salt in hex is the next argument\n", | |
312 | "-S"); | |
313 | BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n", | |
314 | "-K/-iv"); | |
315 | BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n", | |
316 | "-[pP]"); | |
317 | BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>"); | |
318 | BIO_printf(bio_err, "%-14s disable standard block padding\n", | |
319 | "-nopad"); | |
0b13e9f0 | 320 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
321 | BIO_printf(bio_err, |
322 | "%-14s use engine e, possibly a hardware device.\n", | |
323 | "-engine e"); | |
0b13e9f0 | 324 | #endif |
d02b48c6 | 325 | |
ae5c8664 | 326 | BIO_printf(bio_err, "Cipher Types\n"); |
2566388c P |
327 | dec.n = 0; |
328 | dec.bio = bio_err; | |
ae5c8664 | 329 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
2566388c | 330 | show_ciphers, &dec); |
ae5c8664 | 331 | BIO_printf(bio_err, "\n"); |
d02b48c6 | 332 | |
ae5c8664 MC |
333 | goto end; |
334 | } | |
335 | argc--; | |
336 | argv++; | |
337 | } | |
d02b48c6 | 338 | |
aa01b82c | 339 | e = setup_engine(bio_err, engine, 0); |
5270e702 | 340 | |
ae5c8664 MC |
341 | if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { |
342 | BIO_printf(bio_err, | |
343 | "AEAD ciphers not supported by the enc utility\n"); | |
344 | goto end; | |
345 | } | |
346 | ||
347 | if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) { | |
348 | BIO_printf(bio_err, | |
349 | "Ciphers in XTS mode are not supported by the enc utility\n"); | |
350 | goto end; | |
351 | } | |
352 | ||
353 | if (md && (dgst = EVP_get_digestbyname(md)) == NULL) { | |
354 | BIO_printf(bio_err, "%s is an unsupported message digest type\n", md); | |
355 | goto end; | |
356 | } | |
357 | ||
358 | if (dgst == NULL) { | |
359 | dgst = EVP_md5(); | |
360 | } | |
361 | ||
362 | if (bufsize != NULL) { | |
363 | unsigned long n; | |
364 | ||
365 | for (n = 0; *bufsize; bufsize++) { | |
366 | i = *bufsize; | |
367 | if ((i <= '9') && (i >= '0')) | |
368 | n = n * 10 + i - '0'; | |
369 | else if (i == 'k') { | |
370 | n *= 1024; | |
371 | bufsize++; | |
372 | break; | |
373 | } | |
374 | } | |
375 | if (*bufsize != '\0') { | |
376 | BIO_printf(bio_err, "invalid 'bufsize' specified.\n"); | |
377 | goto end; | |
378 | } | |
379 | ||
380 | /* It must be large enough for a base64 encoded line */ | |
381 | if (base64 && n < 80) | |
382 | n = 80; | |
383 | ||
384 | bsize = (int)n; | |
385 | if (verbose) | |
386 | BIO_printf(bio_err, "bufsize=%d\n", bsize); | |
387 | } | |
388 | ||
389 | strbuf = OPENSSL_malloc(SIZE); | |
390 | buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize)); | |
391 | if ((buff == NULL) || (strbuf == NULL)) { | |
392 | BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n", | |
393 | (long)EVP_ENCODE_LENGTH(bsize)); | |
394 | goto end; | |
395 | } | |
396 | ||
397 | in = BIO_new(BIO_s_file()); | |
398 | out = BIO_new(BIO_s_file()); | |
399 | if ((in == NULL) || (out == NULL)) { | |
400 | ERR_print_errors(bio_err); | |
401 | goto end; | |
402 | } | |
403 | if (debug) { | |
404 | BIO_set_callback(in, BIO_debug_callback); | |
405 | BIO_set_callback(out, BIO_debug_callback); | |
406 | BIO_set_callback_arg(in, (char *)bio_err); | |
407 | BIO_set_callback_arg(out, (char *)bio_err); | |
408 | } | |
409 | ||
410 | if (inf == NULL) { | |
01d2e27a | 411 | #ifndef OPENSSL_NO_SETVBUF_IONBF |
ae5c8664 MC |
412 | if (bufsize != NULL) |
413 | setvbuf(stdin, (char *)NULL, _IONBF, 0); | |
414 | #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ | |
415 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
416 | } else { | |
417 | if (BIO_read_filename(in, inf) <= 0) { | |
418 | perror(inf); | |
419 | goto end; | |
420 | } | |
421 | } | |
422 | ||
423 | if (!str && passarg) { | |
424 | if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) { | |
425 | BIO_printf(bio_err, "Error getting password\n"); | |
426 | goto end; | |
427 | } | |
428 | str = pass; | |
429 | } | |
430 | ||
431 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { | |
432 | for (;;) { | |
433 | char buf[200]; | |
434 | ||
c6738fd2 | 435 | BIO_snprintf(buf, sizeof(buf), "enter %s %s password:", |
ae5c8664 MC |
436 | OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
437 | (enc) ? "encryption" : "decryption"); | |
438 | strbuf[0] = '\0'; | |
439 | i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc); | |
440 | if (i == 0) { | |
441 | if (strbuf[0] == '\0') { | |
442 | ret = 1; | |
443 | goto end; | |
444 | } | |
445 | str = strbuf; | |
446 | break; | |
447 | } | |
448 | if (i < 0) { | |
449 | BIO_printf(bio_err, "bad password read\n"); | |
450 | goto end; | |
451 | } | |
452 | } | |
453 | } | |
454 | ||
455 | if (outf == NULL) { | |
456 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
01d2e27a | 457 | #ifndef OPENSSL_NO_SETVBUF_IONBF |
ae5c8664 MC |
458 | if (bufsize != NULL) |
459 | setvbuf(stdout, (char *)NULL, _IONBF, 0); | |
460 | #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */ | |
bc36ee62 | 461 | #ifdef OPENSSL_SYS_VMS |
ae5c8664 MC |
462 | { |
463 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
464 | out = BIO_push(tmpbio, out); | |
465 | } | |
645749ef | 466 | #endif |
ae5c8664 MC |
467 | } else { |
468 | if (BIO_write_filename(out, outf) <= 0) { | |
469 | perror(outf); | |
470 | goto end; | |
471 | } | |
472 | } | |
473 | ||
474 | rbio = in; | |
475 | wbio = out; | |
fd699ac5 | 476 | |
8931b30d DSH |
477 | #ifdef ZLIB |
478 | ||
ae5c8664 MC |
479 | if (do_zlib) { |
480 | if ((bzl = BIO_new(BIO_f_zlib())) == NULL) | |
481 | goto end; | |
482 | if (enc) | |
483 | wbio = BIO_push(bzl, wbio); | |
484 | else | |
485 | rbio = BIO_push(bzl, rbio); | |
486 | } | |
8931b30d DSH |
487 | #endif |
488 | ||
ae5c8664 MC |
489 | if (base64) { |
490 | if ((b64 = BIO_new(BIO_f_base64())) == NULL) | |
491 | goto end; | |
492 | if (debug) { | |
493 | BIO_set_callback(b64, BIO_debug_callback); | |
494 | BIO_set_callback_arg(b64, (char *)bio_err); | |
495 | } | |
496 | if (olb64) | |
497 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
498 | if (enc) | |
499 | wbio = BIO_push(b64, wbio); | |
500 | else | |
501 | rbio = BIO_push(b64, rbio); | |
502 | } | |
503 | ||
504 | if (cipher != NULL) { | |
505 | /* | |
506 | * Note that str is NULL if a key was passed on the command line, so | |
507 | * we get no salt in that case. Is this a bug? | |
508 | */ | |
509 | if (str != NULL) { | |
510 | /* | |
511 | * Salt handling: if encrypting generate a salt and write to | |
512 | * output BIO. If decrypting read salt from input BIO. | |
513 | */ | |
514 | unsigned char *sptr; | |
515 | if (nosalt) | |
516 | sptr = NULL; | |
517 | else { | |
518 | if (enc) { | |
519 | if (hsalt) { | |
c6738fd2 | 520 | if (!set_hex(hsalt, salt, sizeof(salt))) { |
ae5c8664 MC |
521 | BIO_printf(bio_err, "invalid hex salt value\n"); |
522 | goto end; | |
523 | } | |
c6738fd2 | 524 | } else if (RAND_bytes(salt, sizeof(salt)) <= 0) |
ae5c8664 MC |
525 | goto end; |
526 | /* | |
527 | * If -P option then don't bother writing | |
528 | */ | |
529 | if ((printkey != 2) | |
530 | && (BIO_write(wbio, magic, | |
c6738fd2 | 531 | sizeof(magic) - 1) != sizeof(magic) - 1 |
ae5c8664 MC |
532 | || BIO_write(wbio, |
533 | (char *)salt, | |
c6738fd2 | 534 | sizeof(salt)) != sizeof(salt))) { |
ae5c8664 MC |
535 | BIO_printf(bio_err, "error writing output file\n"); |
536 | goto end; | |
537 | } | |
c6738fd2 | 538 | } else if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf) |
ae5c8664 MC |
539 | || BIO_read(rbio, |
540 | (unsigned char *)salt, | |
c6738fd2 | 541 | sizeof(salt)) != sizeof(salt)) { |
ae5c8664 MC |
542 | BIO_printf(bio_err, "error reading input file\n"); |
543 | goto end; | |
c6738fd2 | 544 | } else if (memcmp(mbuf, magic, sizeof(magic) - 1)) { |
ae5c8664 MC |
545 | BIO_printf(bio_err, "bad magic number\n"); |
546 | goto end; | |
547 | } | |
548 | ||
549 | sptr = salt; | |
550 | } | |
551 | ||
552 | EVP_BytesToKey(cipher, dgst, sptr, | |
553 | (unsigned char *)str, strlen(str), 1, key, iv); | |
554 | /* | |
555 | * zero the complete buffer or the string passed from the command | |
556 | * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu> | |
557 | */ | |
558 | if (str == strbuf) | |
559 | OPENSSL_cleanse(str, SIZE); | |
560 | else | |
561 | OPENSSL_cleanse(str, strlen(str)); | |
562 | } | |
3cf40601 RL |
563 | if (hiv != NULL) { |
564 | int siz = EVP_CIPHER_iv_length(cipher); | |
565 | if (siz == 0) { | |
566 | BIO_printf(bio_err, "warning: iv not use by this cipher\n"); | |
c6738fd2 | 567 | } else if (!set_hex(hiv, iv, sizeof(iv))) { |
3cf40601 RL |
568 | BIO_printf(bio_err, "invalid hex iv value\n"); |
569 | goto end; | |
570 | } | |
ae5c8664 MC |
571 | } |
572 | if ((hiv == NULL) && (str == NULL) | |
573 | && EVP_CIPHER_iv_length(cipher) != 0) { | |
574 | /* | |
575 | * No IV was explicitly set and no IV was generated during | |
576 | * EVP_BytesToKey. Hence the IV is undefined, making correct | |
577 | * decryption impossible. | |
578 | */ | |
579 | BIO_printf(bio_err, "iv undefined\n"); | |
580 | goto end; | |
581 | } | |
3cf40601 | 582 | if ((hkey != NULL) && !set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) { |
ae5c8664 MC |
583 | BIO_printf(bio_err, "invalid hex key value\n"); |
584 | goto end; | |
585 | } | |
586 | ||
587 | if ((benc = BIO_new(BIO_f_cipher())) == NULL) | |
588 | goto end; | |
589 | ||
590 | /* | |
591 | * Since we may be changing parameters work on the encryption context | |
592 | * rather than calling BIO_set_cipher(). | |
593 | */ | |
594 | ||
595 | BIO_get_cipher_ctx(benc, &ctx); | |
596 | ||
597 | if (non_fips_allow) | |
598 | EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW); | |
599 | ||
600 | if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) { | |
601 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
602 | EVP_CIPHER_name(cipher)); | |
603 | ERR_print_errors(bio_err); | |
604 | goto end; | |
605 | } | |
606 | ||
607 | if (nopad) | |
608 | EVP_CIPHER_CTX_set_padding(ctx, 0); | |
609 | ||
610 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) { | |
611 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
612 | EVP_CIPHER_name(cipher)); | |
613 | ERR_print_errors(bio_err); | |
614 | goto end; | |
615 | } | |
616 | ||
617 | if (debug) { | |
618 | BIO_set_callback(benc, BIO_debug_callback); | |
619 | BIO_set_callback_arg(benc, (char *)bio_err); | |
620 | } | |
621 | ||
622 | if (printkey) { | |
623 | if (!nosalt) { | |
624 | printf("salt="); | |
625 | for (i = 0; i < (int)sizeof(salt); i++) | |
626 | printf("%02X", salt[i]); | |
627 | printf("\n"); | |
628 | } | |
629 | if (cipher->key_len > 0) { | |
630 | printf("key="); | |
631 | for (i = 0; i < cipher->key_len; i++) | |
632 | printf("%02X", key[i]); | |
633 | printf("\n"); | |
634 | } | |
635 | if (cipher->iv_len > 0) { | |
636 | printf("iv ="); | |
637 | for (i = 0; i < cipher->iv_len; i++) | |
638 | printf("%02X", iv[i]); | |
639 | printf("\n"); | |
640 | } | |
641 | if (printkey == 2) { | |
642 | ret = 0; | |
643 | goto end; | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | /* Only encrypt/decrypt as we write the file */ | |
649 | if (benc != NULL) | |
650 | wbio = BIO_push(benc, wbio); | |
651 | ||
652 | for (;;) { | |
653 | inl = BIO_read(rbio, (char *)buff, bsize); | |
654 | if (inl <= 0) | |
655 | break; | |
656 | if (BIO_write(wbio, (char *)buff, inl) != inl) { | |
657 | BIO_printf(bio_err, "error writing output file\n"); | |
658 | goto end; | |
659 | } | |
660 | } | |
661 | if (!BIO_flush(wbio)) { | |
662 | BIO_printf(bio_err, "bad decrypt\n"); | |
663 | goto end; | |
664 | } | |
665 | ||
666 | ret = 0; | |
667 | if (verbose) { | |
668 | BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in)); | |
669 | BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out)); | |
670 | } | |
671 | end: | |
672 | ERR_print_errors(bio_err); | |
673 | if (strbuf != NULL) | |
674 | OPENSSL_free(strbuf); | |
675 | if (buff != NULL) | |
676 | OPENSSL_free(buff); | |
677 | if (in != NULL) | |
678 | BIO_free(in); | |
679 | if (out != NULL) | |
680 | BIO_free_all(out); | |
681 | if (benc != NULL) | |
682 | BIO_free(benc); | |
683 | if (b64 != NULL) | |
684 | BIO_free(b64); | |
8931b30d | 685 | #ifdef ZLIB |
ae5c8664 MC |
686 | if (bzl != NULL) |
687 | BIO_free(bzl); | |
aa01b82c | 688 | #endif |
0df1caa7 | 689 | release_engine(e); |
ae5c8664 MC |
690 | if (pass) |
691 | OPENSSL_free(pass); | |
692 | apps_shutdown(); | |
693 | OPENSSL_EXIT(ret); | |
694 | } | |
d02b48c6 | 695 | |
6b691a5c | 696 | int set_hex(char *in, unsigned char *out, int size) |
ae5c8664 MC |
697 | { |
698 | int i, n; | |
699 | unsigned char j; | |
700 | ||
701 | n = strlen(in); | |
702 | if (n > (size * 2)) { | |
703 | BIO_printf(bio_err, "hex string is too long\n"); | |
704 | return (0); | |
705 | } | |
706 | memset(out, 0, size); | |
707 | for (i = 0; i < n; i++) { | |
708 | j = (unsigned char)*in; | |
709 | *(in++) = '\0'; | |
710 | if (j == 0) | |
711 | break; | |
712 | if ((j >= '0') && (j <= '9')) | |
713 | j -= '0'; | |
714 | else if ((j >= 'A') && (j <= 'F')) | |
715 | j = j - 'A' + 10; | |
716 | else if ((j >= 'a') && (j <= 'f')) | |
717 | j = j - 'a' + 10; | |
718 | else { | |
719 | BIO_printf(bio_err, "non-hex digit\n"); | |
720 | return (0); | |
721 | } | |
722 | if (i & 1) | |
723 | out[i / 2] |= j; | |
724 | else | |
725 | out[i / 2] = (j << 4); | |
726 | } | |
727 | return (1); | |
728 | } |