1 /*
2 * Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include <limits.h>
14 #include "apps.h"
15 #include "progs.h"
16 #include <openssl/bio.h>
17 #include <openssl/err.h>
18 #include <openssl/evp.h>
19 #include <openssl/objects.h>
20 #include <openssl/x509.h>
21 #include <openssl/rand.h>
22 #include <openssl/pem.h>
23 #ifndef OPENSSL_NO_COMP
24 #include <openssl/comp.h>
25 #endif
26 #include <ctype.h>
27
28 #undef SIZE
29 #undef BSIZE
30 #define SIZE (512)
31 #define BSIZE (8 * 1024)
32
33 #define PBKDF2_ITER_DEFAULT 10000
34 #define STR(a) XSTR(a)
35 #define XSTR(a) #a
36
37 static int set_hex(const char *in, unsigned char *out, int size);
38 static void show_ciphers(const OBJ_NAME *name, void *bio_);
39
40 struct doall_enc_ciphers {
41 BIO *bio;
42 int n;
43 };
44
45 typedef enum OPTION_choice {
46 OPT_COMMON,
47 OPT_LIST,
48 OPT_E,
49 OPT_IN,
50 OPT_OUT,
51 OPT_PASS,
52 OPT_ENGINE,
53 OPT_D,
54 OPT_P,
55 OPT_V,
56 OPT_NOPAD,
57 OPT_SALT,
58 OPT_NOSALT,
59 OPT_DEBUG,
60 OPT_UPPER_P,
61 OPT_UPPER_A,
62 OPT_A,
63 OPT_Z,
64 OPT_BUFSIZE,
65 OPT_K,
66 OPT_KFILE,
67 OPT_UPPER_K,
68 OPT_NONE,
69 OPT_UPPER_S,
70 OPT_IV,
71 OPT_MD,
72 OPT_ITER,
73 OPT_PBKDF2,
74 OPT_CIPHER,
75 OPT_SALTLEN,
76 OPT_R_ENUM,
77 OPT_PROV_ENUM,
78 OPT_SKEYOPT,
79 OPT_SKEYMGMT
80 } OPTION_CHOICE;
81
82 const OPTIONS enc_options[] = {
83 OPT_SECTION("General"),
84 { "help", OPT_HELP, '-', "Display this summary" },
85 { "list", OPT_LIST, '-', "List ciphers" },
86 #ifndef OPENSSL_NO_DEPRECATED_3_0
87 { "ciphers", OPT_LIST, '-', "Alias for -list" },
88 #endif
89 { "e", OPT_E, '-', "Encrypt" },
90 { "d", OPT_D, '-', "Decrypt" },
91 { "p", OPT_P, '-', "Print the iv/key" },
92 { "P", OPT_UPPER_P, '-', "Print the iv/key and exit" },
93 #ifndef OPENSSL_NO_ENGINE
94 { "engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device" },
95 #endif
96
97 OPT_SECTION("Input"),
98 { "in", OPT_IN, '<', "Input file" },
99 { "k", OPT_K, 's', "Passphrase" },
100 { "kfile", OPT_KFILE, '<', "Read passphrase from file" },
101
102 OPT_SECTION("Output"),
103 { "out", OPT_OUT, '>', "Output file" },
104 { "pass", OPT_PASS, 's', "Passphrase source" },
105 { "v", OPT_V, '-', "Verbose output" },
106 { "a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag" },
107 { "base64", OPT_A, '-', "Same as option -a" },
108 { "A", OPT_UPPER_A, '-',
109 "Used with -[base64|a] to specify base64 buffer as a single line" },
110
111 OPT_SECTION("Encryption"),
112 { "nopad", OPT_NOPAD, '-', "Disable standard block padding" },
113 { "salt", OPT_SALT, '-', "Use salt in the KDF (default)" },
114 { "nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF" },
115 { "debug", OPT_DEBUG, '-', "Print debug info" },
116
117 { "bufsize", OPT_BUFSIZE, 's', "Buffer size" },
118 { "K", OPT_UPPER_K, 's', "Raw key, in hex" },
119 { "S", OPT_UPPER_S, 's', "Salt, in hex" },
120 { "iv", OPT_IV, 's', "IV in hex" },
121 { "md", OPT_MD, 's', "Use specified digest to create a key from the passphrase" },
122 { "iter", OPT_ITER, 'p',
123 "Specify the iteration count and force the use of PBKDF2" },
124 { OPT_MORE_STR, 0, 0, "Default: " STR(PBKDF2_ITER_DEFAULT) },
125 { "pbkdf2", OPT_PBKDF2, '-',
126 "Use password-based key derivation function 2 (PBKDF2)" },
127 { OPT_MORE_STR, 0, 0,
128 "Use -iter to change the iteration count from " STR(PBKDF2_ITER_DEFAULT) },
129 { "none", OPT_NONE, '-', "Don't encrypt" },
130 { "saltlen", OPT_SALTLEN, 'p', "Specify the PBKDF2 salt length (in bytes)" },
131 { OPT_MORE_STR, 0, 0, "Default: 16" },
132 #ifndef OPENSSL_NO_ZLIB
133 { "z", OPT_Z, '-', "Compress or decompress encrypted data using zlib" },
134 #endif
135 { "skeyopt", OPT_SKEYOPT, 's', "Key options as opt:value for opaque symmetric key handling" },
136 { "skeymgmt", OPT_SKEYMGMT, 's', "Symmetric key management name for opaque symmetric key handling" },
137 { "", OPT_CIPHER, '-', "Any supported cipher" },
138
139 OPT_R_OPTIONS,
140 OPT_PROV_OPTIONS,
141 { NULL }
142 };
143
enc_main(int argc,char ** argv)144 int enc_main(int argc, char **argv)
145 {
146 static char buf[128];
147 static const char magic[] = "Salted__";
148 ENGINE *e = NULL;
149 BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = NULL, *wbio = NULL;
150 EVP_CIPHER_CTX *ctx = NULL;
151 EVP_CIPHER *cipher = NULL;
152 EVP_MD *dgst = NULL;
153 const char *digestname = NULL;
154 char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p;
155 char *infile = NULL, *outfile = NULL, *prog;
156 char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL;
157 const char *ciphername = NULL;
158 char mbuf[sizeof(magic) - 1];
159 OPTION_CHOICE o;
160 int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0;
161 int enc = 1, printkey = 0, i, k;
162 int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY;
163 int ret = 1, inl, nopad = 0;
164 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
165 int rawkey_set = 0;
166 unsigned char *buff = NULL, salt[EVP_MAX_IV_LENGTH];
167 int saltlen = 0;
168 int pbkdf2 = 0;
169 int iter = 0;
170 long n;
171 int streamable = 1;
172 int wrap = 0;
173 struct doall_enc_ciphers dec;
174 #ifndef OPENSSL_NO_ZLIB
175 int do_zlib = 0;
176 BIO *bzl = NULL;
177 #endif
178 int do_brotli = 0;
179 BIO *bbrot = NULL;
180 int do_zstd = 0;
181 BIO *bzstd = NULL;
182 STACK_OF(OPENSSL_STRING) *skeyopts = NULL;
183 const char *skeymgmt = NULL;
184 EVP_SKEY *skey = NULL;
185 EVP_SKEYMGMT *mgmt = NULL;
186
187 /* first check the command name */
188 if (strcmp(argv[0], "base64") == 0)
189 base64 = 1;
190 #ifndef OPENSSL_NO_ZLIB
191 else if (strcmp(argv[0], "zlib") == 0)
192 do_zlib = 1;
193 #endif
194 #ifndef OPENSSL_NO_BROTLI
195 else if (strcmp(argv[0], "brotli") == 0)
196 do_brotli = 1;
197 #endif
198 #ifndef OPENSSL_NO_ZSTD
199 else if (strcmp(argv[0], "zstd") == 0)
200 do_zstd = 1;
201 #endif
202 else if (strcmp(argv[0], "enc") != 0)
203 ciphername = argv[0];
204
205 opt_set_unknown_name("cipher");
206 prog = opt_init(argc, argv, enc_options);
207 while ((o = opt_next()) != OPT_EOF) {
208 switch (o) {
209 case OPT_EOF:
210 case OPT_ERR:
211 opthelp:
212 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
213 goto end;
214 case OPT_HELP:
215 opt_help(enc_options);
216 ret = 0;
217 goto end;
218 case OPT_LIST:
219 BIO_printf(bio_out, "Supported ciphers:\n");
220 dec.bio = bio_out;
221 dec.n = 0;
222 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
223 show_ciphers, &dec);
224 BIO_printf(bio_out, "\n");
225 ret = 0;
226 goto end;
227 case OPT_E:
228 enc = 1;
229 break;
230 case OPT_IN:
231 infile = opt_arg();
232 break;
233 case OPT_OUT:
234 outfile = opt_arg();
235 break;
236 case OPT_PASS:
237 passarg = opt_arg();
238 break;
239 case OPT_ENGINE:
240 e = setup_engine(opt_arg(), 0);
241 break;
242 case OPT_D:
243 enc = 0;
244 break;
245 case OPT_P:
246 printkey = 1;
247 break;
248 case OPT_V:
249 verbose = 1;
250 break;
251 case OPT_NOPAD:
252 nopad = 1;
253 break;
254 case OPT_SALT:
255 nosalt = 0;
256 break;
257 case OPT_NOSALT:
258 nosalt = 1;
259 break;
260 case OPT_DEBUG:
261 debug = 1;
262 break;
263 case OPT_UPPER_P:
264 printkey = 2;
265 break;
266 case OPT_UPPER_A:
267 olb64 = 1;
268 break;
269 case OPT_A:
270 base64 = 1;
271 break;
272 case OPT_Z:
273 #ifndef OPENSSL_NO_ZLIB
274 do_zlib = 1;
275 #endif
276 break;
277 case OPT_BUFSIZE:
278 p = opt_arg();
279 i = (int)strlen(p) - 1;
280 k = i >= 1 && p[i] == 'k';
281 if (k)
282 p[i] = '\0';
283 if (!opt_long(opt_arg(), &n)
284 || n < 0 || (k && n >= LONG_MAX / 1024))
285 goto opthelp;
286 if (k)
287 n *= 1024;
288 if (n > INT_MAX)
289 goto opthelp;
290 bsize = (int)n;
291 break;
292 case OPT_K:
293 str = opt_arg();
294 break;
295 case OPT_KFILE:
296 in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT);
297 if (in == NULL)
298 goto opthelp;
299 i = BIO_gets(in, buf, sizeof(buf));
300 BIO_free(in);
301 in = NULL;
302 if (i <= 0) {
303 BIO_printf(bio_err,
304 "%s Can't read key from %s\n", prog, opt_arg());
305 goto opthelp;
306 }
307 while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n'))
308 buf[i] = '\0';
309 if (i <= 0) {
310 BIO_printf(bio_err, "%s: zero length password\n", prog);
311 goto opthelp;
312 }
313 str = buf;
314 break;
315 case OPT_UPPER_K:
316 hkey = opt_arg();
317 break;
318 case OPT_UPPER_S:
319 hsalt = opt_arg();
320 break;
321 case OPT_IV:
322 hiv = opt_arg();
323 break;
324 case OPT_MD:
325 digestname = opt_arg();
326 break;
327 case OPT_CIPHER:
328 ciphername = opt_unknown();
329 break;
330 case OPT_ITER:
331 iter = opt_int_arg();
332 pbkdf2 = 1;
333 break;
334 case OPT_SALTLEN:
335 if (!opt_int(opt_arg(), &saltlen))
336 goto opthelp;
337 if (saltlen > (int)sizeof(salt))
338 saltlen = (int)sizeof(salt);
339 break;
340 case OPT_PBKDF2:
341 pbkdf2 = 1;
342 if (iter == 0) /* do not overwrite a chosen value */
343 iter = PBKDF2_ITER_DEFAULT;
344 break;
345 case OPT_NONE:
346 cipher = NULL;
347 break;
348 case OPT_SKEYOPT:
349 if ((skeyopts == NULL && (skeyopts = sk_OPENSSL_STRING_new_null()) == NULL) || sk_OPENSSL_STRING_push(skeyopts, opt_arg()) == 0) {
350 BIO_printf(bio_err, "%s: out of memory\n", prog);
351 goto end;
352 }
353 break;
354 case OPT_SKEYMGMT:
355 skeymgmt = opt_arg();
356 break;
357 case OPT_R_CASES:
358 if (!opt_rand(o))
359 goto end;
360 break;
361 case OPT_PROV_CASES:
362 if (!opt_provider(o))
363 goto end;
364 break;
365 }
366 }
367
368 /* No extra arguments. */
369 if (!opt_check_rest_arg(NULL))
370 goto opthelp;
371 if (!app_RAND_load())
372 goto end;
373 if (saltlen == 0 || pbkdf2 == 0)
374 saltlen = PKCS5_SALT_LEN;
375
376 /* Get the cipher name, either from progname (if set) or flag. */
377 if (!opt_cipher(ciphername, &cipher))
378 goto opthelp;
379 if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) {
380 wrap = 1;
381 streamable = 0;
382 }
383 if (digestname != NULL) {
384 if (!opt_md(digestname, &dgst))
385 goto opthelp;
386 }
387 if (dgst == NULL)
388 dgst = (EVP_MD *)EVP_sha256();
389
390 if (iter == 0)
391 iter = 1;
392
393 /* It must be large enough for a base64 encoded line */
394 if (base64 && bsize < 80)
395 bsize = 80;
396 if (verbose)
397 BIO_printf(bio_err, "bufsize=%d\n", bsize);
398
399 #ifndef OPENSSL_NO_ZLIB
400 if (do_zlib)
401 base64 = 0;
402 #endif
403 if (do_brotli)
404 base64 = 0;
405 if (do_zstd)
406 base64 = 0;
407
408 if (base64) {
409 if (enc)
410 outformat = FORMAT_BASE64;
411 else
412 informat = FORMAT_BASE64;
413 }
414
415 strbuf = app_malloc(SIZE, "strbuf");
416 buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer");
417
418 if (infile == NULL) {
419 if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */
420 BIO_printf(bio_err, "Unstreamable cipher mode\n");
421 goto end;
422 }
423 in = dup_bio_in(informat);
424 } else {
425 in = bio_open_default(infile, 'r', informat);
426 }
427 if (in == NULL)
428 goto end;
429
430 if (str == NULL && passarg != NULL) {
431 if (!app_passwd(passarg, NULL, &pass, NULL)) {
432 BIO_printf(bio_err, "Error getting password\n");
433 goto end;
434 }
435 str = pass;
436 }
437
438 if ((str == NULL) && (cipher != NULL) && (hkey == NULL) && (skeyopts == NULL)) {
439 if (1) {
440 #ifndef OPENSSL_NO_UI_CONSOLE
441 for (;;) {
442 char prompt[200];
443
444 BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:",
445 EVP_CIPHER_get0_name(cipher),
446 (enc) ? "encryption" : "decryption");
447 strbuf[0] = '\0';
448 i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc);
449 if (i == 0) {
450 if (strbuf[0] == '\0') {
451 ret = 1;
452 goto end;
453 }
454 str = strbuf;
455 break;
456 }
457 if (i < 0) {
458 BIO_printf(bio_err, "bad password read\n");
459 goto end;
460 }
461 }
462 } else {
463 #endif
464 BIO_printf(bio_err, "password required\n");
465 goto end;
466 }
467 }
468
469 out = bio_open_default(outfile, 'w', outformat);
470 if (out == NULL)
471 goto end;
472
473 if (debug) {
474 BIO_set_callback_ex(in, BIO_debug_callback_ex);
475 BIO_set_callback_ex(out, BIO_debug_callback_ex);
476 BIO_set_callback_arg(in, (char *)bio_err);
477 BIO_set_callback_arg(out, (char *)bio_err);
478 }
479
480 rbio = in;
481 wbio = out;
482
483 #ifndef OPENSSL_NO_COMP
484 #ifndef OPENSSL_NO_ZLIB
485 if (do_zlib) {
486 if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
487 goto end;
488 if (debug) {
489 BIO_set_callback_ex(bzl, BIO_debug_callback_ex);
490 BIO_set_callback_arg(bzl, (char *)bio_err);
491 }
492 if (enc)
493 wbio = BIO_push(bzl, wbio);
494 else
495 rbio = BIO_push(bzl, rbio);
496 }
497 #endif
498
499 if (do_brotli) {
500 if ((bbrot = BIO_new(BIO_f_brotli())) == NULL)
501 goto end;
502 if (debug) {
503 BIO_set_callback_ex(bbrot, BIO_debug_callback_ex);
504 BIO_set_callback_arg(bbrot, (char *)bio_err);
505 }
506 if (enc)
507 wbio = BIO_push(bbrot, wbio);
508 else
509 rbio = BIO_push(bbrot, rbio);
510 }
511
512 if (do_zstd) {
513 if ((bzstd = BIO_new(BIO_f_zstd())) == NULL)
514 goto end;
515 if (debug) {
516 BIO_set_callback_ex(bzstd, BIO_debug_callback_ex);
517 BIO_set_callback_arg(bzstd, (char *)bio_err);
518 }
519 if (enc)
520 wbio = BIO_push(bzstd, wbio);
521 else
522 rbio = BIO_push(bzstd, rbio);
523 }
524 #endif
525
526 if (base64) {
527 if ((b64 = BIO_new(BIO_f_base64())) == NULL)
528 goto end;
529 if (debug) {
530 BIO_set_callback_ex(b64, BIO_debug_callback_ex);
531 BIO_set_callback_arg(b64, (char *)bio_err);
532 }
533 if (olb64)
534 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
535 if (enc)
536 wbio = BIO_push(b64, wbio);
537 else
538 rbio = BIO_push(b64, rbio);
539 }
540
541 if (cipher != NULL) {
542 if (str != NULL) { /* a passphrase is available */
543 /*
544 * Salt handling: if encrypting generate a salt if not supplied,
545 * and write to output BIO. If decrypting use salt from input BIO
546 * if not given with args
547 */
548 unsigned char *sptr;
549 size_t str_len = strlen(str);
550
551 if (nosalt) {
552 sptr = NULL;
553 } else {
554 if (hsalt != NULL && !set_hex(hsalt, salt, saltlen)) {
555 BIO_printf(bio_err, "invalid hex salt value\n");
556 goto end;
557 }
558 if (enc) { /* encryption */
559 if (hsalt == NULL) {
560 if (RAND_bytes(salt, saltlen) <= 0) {
561 BIO_printf(bio_err, "RAND_bytes failed\n");
562 goto end;
563 }
564 /*
565 * If -P option then don't bother writing.
566 * If salt is given, shouldn't either ?
567 */
568 if ((printkey != 2)
569 && (BIO_write(wbio, magic,
570 sizeof(magic) - 1)
571 != sizeof(magic) - 1
572 || BIO_write(wbio,
573 (char *)salt,
574 saltlen)
575 != saltlen)) {
576 BIO_printf(bio_err, "error writing output file\n");
577 goto end;
578 }
579 }
580 } else { /* decryption */
581 if (hsalt == NULL) {
582 if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)) {
583 BIO_printf(bio_err, "error reading input file\n");
584 goto end;
585 }
586 if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */
587 if (BIO_read(rbio, salt,
588 saltlen)
589 != saltlen) {
590 BIO_printf(bio_err, "error reading input file\n");
591 goto end;
592 }
593 } else { /* file is NOT salted, NO salt available */
594 BIO_printf(bio_err, "bad magic number\n");
595 goto end;
596 }
597 }
598 }
599 sptr = salt;
600 }
601
602 if (pbkdf2 == 1) {
603 /*
604 * derive key and default iv
605 * concatenated into a temporary buffer
606 */
607 unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH];
608 int iklen = EVP_CIPHER_get_key_length(cipher);
609 int ivlen = EVP_CIPHER_get_iv_length(cipher);
610 /* not needed if HASH_UPDATE() is fixed : */
611 int islen = (sptr != NULL ? saltlen : 0);
612
613 if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen,
614 iter, dgst, iklen + ivlen, tmpkeyiv)) {
615 BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n");
616 goto end;
617 }
618 /* split and move data back to global buffer */
619 memcpy(key, tmpkeyiv, iklen);
620 memcpy(iv, tmpkeyiv + iklen, ivlen);
621 rawkey_set = 1;
622 } else {
623 BIO_printf(bio_err, "*** WARNING : "
624 "deprecated key derivation used.\n"
625 "Using -iter or -pbkdf2 would be better.\n");
626 if (!EVP_BytesToKey(cipher, dgst, sptr,
627 (unsigned char *)str, str_len,
628 1, key, iv)) {
629 BIO_printf(bio_err, "EVP_BytesToKey failed\n");
630 goto end;
631 }
632 rawkey_set = 1;
633 }
634 /*
635 * zero the complete buffer or the string passed from the command
636 * line.
637 */
638 if (str == strbuf)
639 OPENSSL_cleanse(str, SIZE);
640 else
641 OPENSSL_cleanse(str, str_len);
642 }
643 if (hiv != NULL) {
644 int siz = EVP_CIPHER_get_iv_length(cipher);
645
646 if (siz == 0) {
647 BIO_printf(bio_err, "warning: iv not used by this cipher\n");
648 } else if (!set_hex(hiv, iv, siz)) {
649 BIO_printf(bio_err, "invalid hex iv value\n");
650 goto end;
651 }
652 }
653 if ((hiv == NULL) && (str == NULL)
654 && EVP_CIPHER_get_iv_length(cipher) != 0
655 && wrap == 0) {
656 /*
657 * No IV was explicitly set and no IV was generated.
658 * Hence the IV is undefined, making correct decryption impossible.
659 */
660 BIO_printf(bio_err, "iv undefined\n");
661 goto end;
662 }
663 if (hkey != NULL) {
664 if (!set_hex(hkey, key, EVP_CIPHER_get_key_length(cipher))) {
665 BIO_printf(bio_err, "invalid hex key value\n");
666 goto end;
667 }
668 /* wiping secret data as we no longer need it */
669 cleanse(hkey);
670 rawkey_set = 1;
671 }
672
673 /*
674 * At this moment we know whether we trying to use raw bytes as the key
675 * or an opaque symmetric key. We do not allow both options simultaneously.
676 */
677 if (rawkey_set > 0 && skeyopts != NULL) {
678 BIO_printf(bio_err, "Either a raw key or the 'skeyopt' args must be used.\n");
679 goto end;
680 }
681
682 if ((benc = BIO_new(BIO_f_cipher())) == NULL)
683 goto end;
684
685 /*
686 * Since we may be changing parameters work on the encryption context
687 * rather than calling BIO_set_cipher().
688 */
689
690 BIO_get_cipher_ctx(benc, &ctx);
691
692 if (wrap == 1)
693 EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
694
695 if (rawkey_set) {
696 if (!EVP_CipherInit_ex(ctx, cipher, e, key,
697 (hiv == NULL && wrap == 1 ? NULL : iv), enc)) {
698 BIO_printf(bio_err, "Error setting cipher %s\n",
699 EVP_CIPHER_get0_name(cipher));
700 ERR_print_errors(bio_err);
701 goto end;
702 }
703 } else {
704 OSSL_PARAM *params = NULL;
705
706 mgmt = EVP_SKEYMGMT_fetch(app_get0_libctx(),
707 skeymgmt != NULL ? skeymgmt : EVP_CIPHER_name(cipher),
708 app_get0_propq());
709 if (mgmt == NULL)
710 goto end;
711
712 params = app_params_new_from_opts(skeyopts,
713 EVP_SKEYMGMT_get0_imp_settable_params(mgmt));
714 if (params == NULL)
715 goto end;
716
717 skey = EVP_SKEY_import(app_get0_libctx(), EVP_SKEYMGMT_get0_name(mgmt),
718 app_get0_propq(), OSSL_SKEYMGMT_SELECT_ALL, params);
719 OSSL_PARAM_free(params);
720 if (skey == NULL) {
721 BIO_printf(bio_err, "Error creating opaque key object for skeymgmt %s\n",
722 skeymgmt ? skeymgmt : EVP_CIPHER_name(cipher));
723 ERR_print_errors(bio_err);
724 goto end;
725 }
726
727 if (!EVP_CipherInit_SKEY(ctx, cipher, skey,
728 (hiv == NULL && wrap == 1 ? NULL : iv),
729 EVP_CIPHER_get_iv_length(cipher), enc, NULL)) {
730 BIO_printf(bio_err, "Error setting an opaque key for cipher %s\n",
731 EVP_CIPHER_get0_name(cipher));
732 ERR_print_errors(bio_err);
733 goto end;
734 }
735 }
736
737 if (nopad)
738 EVP_CIPHER_CTX_set_padding(ctx, 0);
739
740 if (debug) {
741 BIO_set_callback_ex(benc, BIO_debug_callback_ex);
742 BIO_set_callback_arg(benc, (char *)bio_err);
743 }
744
745 if (printkey) {
746 if (!nosalt) {
747 printf("salt=");
748 for (i = 0; i < (int)saltlen; i++)
749 printf("%02X", salt[i]);
750 printf("\n");
751 }
752 if (EVP_CIPHER_get_key_length(cipher) > 0) {
753 printf("key=");
754 for (i = 0; i < EVP_CIPHER_get_key_length(cipher); i++)
755 printf("%02X", key[i]);
756 printf("\n");
757 }
758 if (EVP_CIPHER_get_iv_length(cipher) > 0) {
759 printf("iv =");
760 for (i = 0; i < EVP_CIPHER_get_iv_length(cipher); i++)
761 printf("%02X", iv[i]);
762 printf("\n");
763 }
764 if (printkey == 2) {
765 ret = 0;
766 goto end;
767 }
768 }
769 }
770
771 /* Only encrypt/decrypt as we write the file */
772 if (benc != NULL)
773 wbio = BIO_push(benc, wbio);
774
775 while (BIO_pending(rbio) || !BIO_eof(rbio)) {
776 inl = BIO_read(rbio, (char *)buff, bsize);
777 if (inl <= 0)
778 break;
779 if (!streamable && !BIO_eof(rbio)) { /* do not output data */
780 BIO_printf(bio_err, "Unstreamable cipher mode\n");
781 goto end;
782 }
783 if (BIO_write(wbio, (char *)buff, inl) != inl) {
784 BIO_printf(bio_err, "error writing output file\n");
785 goto end;
786 }
787 if (!streamable)
788 break;
789 }
790 if (!BIO_flush(wbio)) {
791 if (enc)
792 BIO_printf(bio_err, "bad encrypt\n");
793 else
794 BIO_printf(bio_err, "bad decrypt\n");
795 goto end;
796 }
797
798 ret = 0;
799 if (verbose) {
800 BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in));
801 BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out));
802 }
803 end:
804 ERR_print_errors(bio_err);
805 sk_OPENSSL_STRING_free(skeyopts);
806 EVP_SKEYMGMT_free(mgmt);
807 EVP_SKEY_free(skey);
808 OPENSSL_free(strbuf);
809 OPENSSL_free(buff);
810 BIO_free(in);
811 BIO_free_all(out);
812 BIO_free(benc);
813 BIO_free(b64);
814 EVP_MD_free(dgst);
815 EVP_CIPHER_free(cipher);
816 #ifndef OPENSSL_NO_ZLIB
817 BIO_free(bzl);
818 #endif
819 BIO_free(bbrot);
820 BIO_free(bzstd);
821 release_engine(e);
822 OPENSSL_free(pass);
823 return ret;
824 }
825
show_ciphers(const OBJ_NAME * name,void * arg)826 static void show_ciphers(const OBJ_NAME *name, void *arg)
827 {
828 struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg;
829 const EVP_CIPHER *cipher;
830
831 if (!islower((unsigned char)*name->name))
832 return;
833
834 /* Filter out ciphers that we cannot use */
835 cipher = EVP_get_cipherbyname(name->name);
836 if (cipher == NULL
837 || (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0
838 || EVP_CIPHER_get_mode(cipher) == EVP_CIPH_XTS_MODE)
839 return;
840
841 BIO_printf(dec->bio, "-%-25s", name->name);
842 if (++dec->n == 3) {
843 BIO_printf(dec->bio, "\n");
844 dec->n = 0;
845 } else
846 BIO_printf(dec->bio, " ");
847 }
848
set_hex(const char * in,unsigned char * out,int size)849 static int set_hex(const char *in, unsigned char *out, int size)
850 {
851 int i, n;
852 unsigned char j;
853
854 i = size * 2;
855 n = strlen(in);
856 if (n > i) {
857 BIO_printf(bio_err, "hex string is too long, ignoring excess\n");
858 n = i; /* ignore exceeding part */
859 } else if (n < i) {
860 BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n");
861 }
862
863 memset(out, 0, size);
864 for (i = 0; i < n; i++) {
865 j = (unsigned char)*in++;
866 if (!isxdigit(j)) {
867 BIO_printf(bio_err, "non-hex digit\n");
868 return 0;
869 }
870 j = (unsigned char)OPENSSL_hexchar2int(j);
871 if (i & 1)
872 out[i / 2] |= j;
873 else
874 out[i / 2] = (j << 4);
875 }
876 return 1;
877 }
878