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Commit | Line | Data |
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846e33c7 | 1 | /* |
2b305ab0 | 2 | * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
846e33c7 RS |
4 | * Licensed under the OpenSSL license (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 | |
d02b48c6 RE |
8 | */ |
9 | ||
10 | #include <stdio.h> | |
11 | #include <stdlib.h> | |
12 | #include <string.h> | |
bd4850df | 13 | #include <limits.h> |
d02b48c6 | 14 | #include "apps.h" |
dab2cd68 | 15 | #include "progs.h" |
ec577822 BM |
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> | |
fd699ac5 | 21 | #include <openssl/rand.h> |
ec577822 | 22 | #include <openssl/pem.h> |
9494e99b | 23 | #ifndef OPENSSL_NO_COMP |
0f113f3e | 24 | # include <openssl/comp.h> |
9494e99b | 25 | #endif |
646d5695 | 26 | #include <ctype.h> |
d02b48c6 | 27 | |
d02b48c6 RE |
28 | #undef SIZE |
29 | #undef BSIZE | |
0f113f3e MC |
30 | #define SIZE (512) |
31 | #define BSIZE (8*1024) | |
646d5695 | 32 | |
d5961b22 | 33 | static int set_hex(const char *in, unsigned char *out, int size); |
7e1b7485 RS |
34 | static void show_ciphers(const OBJ_NAME *name, void *bio_); |
35 | ||
2b305ab0 P |
36 | struct doall_enc_ciphers { |
37 | BIO *bio; | |
38 | int n; | |
39 | }; | |
40 | ||
7e1b7485 RS |
41 | typedef enum OPTION_choice { |
42 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
3b5bea36 | 43 | OPT_LIST, |
7e1b7485 RS |
44 | OPT_E, OPT_IN, OPT_OUT, OPT_PASS, OPT_ENGINE, OPT_D, OPT_P, OPT_V, |
45 | OPT_NOPAD, OPT_SALT, OPT_NOSALT, OPT_DEBUG, OPT_UPPER_P, OPT_UPPER_A, | |
46 | OPT_A, OPT_Z, OPT_BUFSIZE, OPT_K, OPT_KFILE, OPT_UPPER_K, OPT_NONE, | |
3ee1eac2 RS |
47 | OPT_UPPER_S, OPT_IV, OPT_MD, OPT_CIPHER, |
48 | OPT_R_ENUM | |
7e1b7485 RS |
49 | } OPTION_CHOICE; |
50 | ||
44c83ebd | 51 | const OPTIONS enc_options[] = { |
7e1b7485 | 52 | {"help", OPT_HELP, '-', "Display this summary"}, |
3b5bea36 | 53 | {"ciphers", OPT_LIST, '-', "List ciphers"}, |
7e1b7485 RS |
54 | {"in", OPT_IN, '<', "Input file"}, |
55 | {"out", OPT_OUT, '>', "Output file"}, | |
56 | {"pass", OPT_PASS, 's', "Passphrase source"}, | |
7e1b7485 RS |
57 | {"e", OPT_E, '-', "Encrypt"}, |
58 | {"d", OPT_D, '-', "Decrypt"}, | |
59 | {"p", OPT_P, '-', "Print the iv/key"}, | |
60 | {"P", OPT_UPPER_P, '-', "Print the iv/key and exit"}, | |
9a13bb38 | 61 | {"v", OPT_V, '-', "Verbose output"}, |
7e1b7485 | 62 | {"nopad", OPT_NOPAD, '-', "Disable standard block padding"}, |
9a13bb38 RS |
63 | {"salt", OPT_SALT, '-', "Use salt in the KDF (default)"}, |
64 | {"nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF"}, | |
65 | {"debug", OPT_DEBUG, '-', "Print debug info"}, | |
66 | {"a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag"}, | |
67 | {"base64", OPT_A, '-', "Same as option -a"}, | |
68 | {"A", OPT_UPPER_A, '-', | |
69 | "Used with -[base64|a] to specify base64 buffer as a single line"}, | |
7e1b7485 RS |
70 | {"bufsize", OPT_BUFSIZE, 's', "Buffer size"}, |
71 | {"k", OPT_K, 's', "Passphrase"}, | |
5507b961 | 72 | {"kfile", OPT_KFILE, '<', "Read passphrase from file"}, |
b256f717 | 73 | {"K", OPT_UPPER_K, 's', "Raw key, in hex"}, |
7e1b7485 RS |
74 | {"S", OPT_UPPER_S, 's', "Salt, in hex"}, |
75 | {"iv", OPT_IV, 's', "IV in hex"}, | |
5507b961 | 76 | {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"}, |
7e1b7485 RS |
77 | {"none", OPT_NONE, '-', "Don't encrypt"}, |
78 | {"", OPT_CIPHER, '-', "Any supported cipher"}, | |
3ee1eac2 | 79 | OPT_R_OPTIONS, |
9c3bcfa0 RS |
80 | #ifdef ZLIB |
81 | {"z", OPT_Z, '-', "Use zlib as the 'encryption'"}, | |
82 | #endif | |
83 | #ifndef OPENSSL_NO_ENGINE | |
84 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
85 | #endif | |
7e1b7485 RS |
86 | {NULL} |
87 | }; | |
88 | ||
89 | int enc_main(int argc, char **argv) | |
0f113f3e | 90 | { |
7e1b7485 | 91 | static char buf[128]; |
0f113f3e | 92 | static const char magic[] = "Salted__"; |
dd1abd44 | 93 | ENGINE *e = NULL; |
7e1b7485 RS |
94 | BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = |
95 | NULL, *wbio = NULL; | |
96 | EVP_CIPHER_CTX *ctx = NULL; | |
97 | const EVP_CIPHER *cipher = NULL, *c; | |
98 | const EVP_MD *dgst = NULL; | |
333b070e | 99 | char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; |
7e1b7485 RS |
100 | char *infile = NULL, *outfile = NULL, *prog; |
101 | char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; | |
cbe29648 | 102 | char mbuf[sizeof(magic) - 1]; |
7e1b7485 RS |
103 | OPTION_CHOICE o; |
104 | int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; | |
5f62e044 RL |
105 | int enc = 1, printkey = 0, i, k; |
106 | int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; | |
700b4a4a | 107 | int ret = 1, inl, nopad = 0; |
0f113f3e | 108 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; |
7e1b7485 | 109 | unsigned char *buff = NULL, salt[PKCS5_SALT_LEN]; |
bd4850df | 110 | long n; |
2b305ab0 | 111 | struct doall_enc_ciphers dec; |
8931b30d | 112 | #ifdef ZLIB |
0f113f3e MC |
113 | int do_zlib = 0; |
114 | BIO *bzl = NULL; | |
8931b30d | 115 | #endif |
3647bee2 | 116 | |
0f113f3e | 117 | /* first check the program name */ |
7e1b7485 | 118 | prog = opt_progname(argv[0]); |
2234212c | 119 | if (strcmp(prog, "base64") == 0) { |
5f62e044 | 120 | base64 = 1; |
8931b30d | 121 | #ifdef ZLIB |
2234212c | 122 | } else if (strcmp(prog, "zlib") == 0) { |
0f113f3e | 123 | do_zlib = 1; |
8931b30d | 124 | #endif |
2234212c | 125 | } else { |
7e1b7485 RS |
126 | cipher = EVP_get_cipherbyname(prog); |
127 | if (cipher == NULL && strcmp(prog, "enc") != 0) { | |
128 | BIO_printf(bio_err, "%s is not a known cipher\n", prog); | |
129 | goto end; | |
130 | } | |
0f113f3e MC |
131 | } |
132 | ||
7e1b7485 RS |
133 | prog = opt_init(argc, argv, enc_options); |
134 | while ((o = opt_next()) != OPT_EOF) { | |
135 | switch (o) { | |
136 | case OPT_EOF: | |
137 | case OPT_ERR: | |
138 | opthelp: | |
139 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
140 | goto end; | |
141 | case OPT_HELP: | |
142 | opt_help(enc_options); | |
143 | ret = 0; | |
3b5bea36 RS |
144 | goto end; |
145 | case OPT_LIST: | |
341de5f1 | 146 | BIO_printf(bio_out, "Supported ciphers:\n"); |
2b305ab0 P |
147 | dec.bio = bio_out; |
148 | dec.n = 0; | |
7e1b7485 | 149 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
2b305ab0 | 150 | show_ciphers, &dec); |
341de5f1 RL |
151 | BIO_printf(bio_out, "\n"); |
152 | ret = 0; | |
7e1b7485 RS |
153 | goto end; |
154 | case OPT_E: | |
0f113f3e | 155 | enc = 1; |
7e1b7485 RS |
156 | break; |
157 | case OPT_IN: | |
158 | infile = opt_arg(); | |
159 | break; | |
160 | case OPT_OUT: | |
161 | outfile = opt_arg(); | |
162 | break; | |
163 | case OPT_PASS: | |
164 | passarg = opt_arg(); | |
165 | break; | |
166 | case OPT_ENGINE: | |
dd1abd44 | 167 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
168 | break; |
169 | case OPT_D: | |
0f113f3e | 170 | enc = 0; |
7e1b7485 RS |
171 | break; |
172 | case OPT_P: | |
0f113f3e | 173 | printkey = 1; |
7e1b7485 RS |
174 | break; |
175 | case OPT_V: | |
0f113f3e | 176 | verbose = 1; |
7e1b7485 RS |
177 | break; |
178 | case OPT_NOPAD: | |
0f113f3e | 179 | nopad = 1; |
7e1b7485 RS |
180 | break; |
181 | case OPT_SALT: | |
0f113f3e | 182 | nosalt = 0; |
7e1b7485 RS |
183 | break; |
184 | case OPT_NOSALT: | |
0f113f3e | 185 | nosalt = 1; |
7e1b7485 RS |
186 | break; |
187 | case OPT_DEBUG: | |
0f113f3e | 188 | debug = 1; |
7e1b7485 RS |
189 | break; |
190 | case OPT_UPPER_P: | |
0f113f3e | 191 | printkey = 2; |
7e1b7485 RS |
192 | break; |
193 | case OPT_UPPER_A: | |
0f113f3e | 194 | olb64 = 1; |
7e1b7485 RS |
195 | break; |
196 | case OPT_A: | |
5f62e044 | 197 | base64 = 1; |
7e1b7485 RS |
198 | break; |
199 | case OPT_Z: | |
8931b30d | 200 | #ifdef ZLIB |
0f113f3e | 201 | do_zlib = 1; |
8931b30d | 202 | #endif |
7e1b7485 RS |
203 | break; |
204 | case OPT_BUFSIZE: | |
205 | p = opt_arg(); | |
206 | i = (int)strlen(p) - 1; | |
207 | k = i >= 1 && p[i] == 'k'; | |
208 | if (k) | |
209 | p[i] = '\0'; | |
bd4850df RS |
210 | if (!opt_long(opt_arg(), &n) |
211 | || n < 0 || (k && n >= LONG_MAX / 1024)) | |
7e1b7485 RS |
212 | goto opthelp; |
213 | if (k) | |
214 | n *= 1024; | |
215 | bsize = (int)n; | |
216 | break; | |
217 | case OPT_K: | |
218 | str = opt_arg(); | |
219 | break; | |
220 | case OPT_KFILE: | |
bdd58d98 | 221 | in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); |
7e1b7485 RS |
222 | if (in == NULL) |
223 | goto opthelp; | |
cbe29648 | 224 | i = BIO_gets(in, buf, sizeof(buf)); |
7e1b7485 RS |
225 | BIO_free(in); |
226 | in = NULL; | |
227 | if (i <= 0) { | |
228 | BIO_printf(bio_err, | |
229 | "%s Can't read key from %s\n", prog, opt_arg()); | |
230 | goto opthelp; | |
0f113f3e | 231 | } |
7e1b7485 RS |
232 | while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) |
233 | buf[i] = '\0'; | |
234 | if (i <= 0) { | |
235 | BIO_printf(bio_err, "%s: zero length password\n", prog); | |
236 | goto opthelp; | |
0f113f3e MC |
237 | } |
238 | str = buf; | |
7e1b7485 RS |
239 | break; |
240 | case OPT_UPPER_K: | |
241 | hkey = opt_arg(); | |
242 | break; | |
243 | case OPT_UPPER_S: | |
244 | hsalt = opt_arg(); | |
245 | break; | |
246 | case OPT_IV: | |
247 | hiv = opt_arg(); | |
248 | break; | |
249 | case OPT_MD: | |
250 | if (!opt_md(opt_arg(), &dgst)) | |
251 | goto opthelp; | |
252 | break; | |
7e1b7485 RS |
253 | case OPT_CIPHER: |
254 | if (!opt_cipher(opt_unknown(), &c)) | |
255 | goto opthelp; | |
0f113f3e | 256 | cipher = c; |
7e1b7485 RS |
257 | break; |
258 | case OPT_NONE: | |
0f113f3e | 259 | cipher = NULL; |
7e1b7485 | 260 | break; |
3ee1eac2 RS |
261 | case OPT_R_CASES: |
262 | if (!opt_rand(o)) | |
263 | goto end; | |
264 | break; | |
0f113f3e | 265 | } |
0f113f3e | 266 | } |
c27363f5 RS |
267 | if (opt_num_rest() != 0) { |
268 | BIO_printf(bio_err, "Extra arguments given.\n"); | |
269 | goto opthelp; | |
270 | } | |
d02b48c6 | 271 | |
0f113f3e | 272 | if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { |
7e1b7485 | 273 | BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog); |
0f113f3e MC |
274 | goto end; |
275 | } | |
276 | ||
277 | if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) { | |
7e1b7485 | 278 | BIO_printf(bio_err, "%s XTS ciphers not supported\n", prog); |
0f113f3e MC |
279 | goto end; |
280 | } | |
281 | ||
7e1b7485 | 282 | if (dgst == NULL) |
f8547f62 | 283 | dgst = EVP_sha256(); |
0f113f3e | 284 | |
7e1b7485 | 285 | /* It must be large enough for a base64 encoded line */ |
5f62e044 | 286 | if (base64 && bsize < 80) |
7e1b7485 RS |
287 | bsize = 80; |
288 | if (verbose) | |
289 | BIO_printf(bio_err, "bufsize=%d\n", bsize); | |
0f113f3e | 290 | |
802d2243 RL |
291 | #ifdef ZLIB |
292 | if (!do_zlib) | |
293 | #endif | |
294 | if (base64) { | |
295 | if (enc) | |
296 | outformat = FORMAT_BASE64; | |
297 | else | |
298 | informat = FORMAT_BASE64; | |
299 | } | |
5f62e044 | 300 | |
68dc6824 RS |
301 | strbuf = app_malloc(SIZE, "strbuf"); |
302 | buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); | |
0f113f3e | 303 | |
7e1b7485 | 304 | if (infile == NULL) { |
5f62e044 | 305 | in = dup_bio_in(informat); |
2234212c | 306 | } else { |
5f62e044 | 307 | in = bio_open_default(infile, 'r', informat); |
2234212c | 308 | } |
7e1b7485 RS |
309 | if (in == NULL) |
310 | goto end; | |
0f113f3e | 311 | |
2234212c | 312 | if (str == NULL && passarg != NULL) { |
7e1b7485 | 313 | if (!app_passwd(passarg, NULL, &pass, NULL)) { |
0f113f3e MC |
314 | BIO_printf(bio_err, "Error getting password\n"); |
315 | goto end; | |
316 | } | |
317 | str = pass; | |
318 | } | |
319 | ||
320 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { | |
923b1857 | 321 | if (1) { |
48feaceb | 322 | #ifndef OPENSSL_NO_UI_CONSOLE |
923b1857 RL |
323 | for (;;) { |
324 | char prompt[200]; | |
0f113f3e | 325 | |
eee95522 | 326 | BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", |
0904e79a RS |
327 | OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
328 | (enc) ? "encryption" : "decryption"); | |
923b1857 RL |
329 | strbuf[0] = '\0'; |
330 | i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); | |
331 | if (i == 0) { | |
332 | if (strbuf[0] == '\0') { | |
333 | ret = 1; | |
334 | goto end; | |
335 | } | |
336 | str = strbuf; | |
337 | break; | |
338 | } | |
339 | if (i < 0) { | |
340 | BIO_printf(bio_err, "bad password read\n"); | |
0f113f3e MC |
341 | goto end; |
342 | } | |
0f113f3e | 343 | } |
923b1857 RL |
344 | } else { |
345 | #endif | |
346 | BIO_printf(bio_err, "password required\n"); | |
347 | goto end; | |
0f113f3e MC |
348 | } |
349 | } | |
350 | ||
5f62e044 | 351 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
352 | if (out == NULL) |
353 | goto end; | |
0f113f3e | 354 | |
7a82f778 RL |
355 | if (debug) { |
356 | BIO_set_callback(in, BIO_debug_callback); | |
357 | BIO_set_callback(out, BIO_debug_callback); | |
358 | BIO_set_callback_arg(in, (char *)bio_err); | |
359 | BIO_set_callback_arg(out, (char *)bio_err); | |
360 | } | |
361 | ||
0f113f3e MC |
362 | rbio = in; |
363 | wbio = out; | |
fd699ac5 | 364 | |
8931b30d | 365 | #ifdef ZLIB |
0f113f3e MC |
366 | if (do_zlib) { |
367 | if ((bzl = BIO_new(BIO_f_zlib())) == NULL) | |
368 | goto end; | |
7a82f778 RL |
369 | if (debug) { |
370 | BIO_set_callback(bzl, BIO_debug_callback); | |
371 | BIO_set_callback_arg(bzl, (char *)bio_err); | |
372 | } | |
0f113f3e MC |
373 | if (enc) |
374 | wbio = BIO_push(bzl, wbio); | |
375 | else | |
376 | rbio = BIO_push(bzl, rbio); | |
377 | } | |
8931b30d DSH |
378 | #endif |
379 | ||
5f62e044 | 380 | if (base64) { |
0f113f3e MC |
381 | if ((b64 = BIO_new(BIO_f_base64())) == NULL) |
382 | goto end; | |
383 | if (debug) { | |
384 | BIO_set_callback(b64, BIO_debug_callback); | |
385 | BIO_set_callback_arg(b64, (char *)bio_err); | |
386 | } | |
387 | if (olb64) | |
388 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
389 | if (enc) | |
390 | wbio = BIO_push(b64, wbio); | |
391 | else | |
392 | rbio = BIO_push(b64, rbio); | |
393 | } | |
394 | ||
395 | if (cipher != NULL) { | |
396 | /* | |
397 | * Note that str is NULL if a key was passed on the command line, so | |
398 | * we get no salt in that case. Is this a bug? | |
399 | */ | |
400 | if (str != NULL) { | |
401 | /* | |
402 | * Salt handling: if encrypting generate a salt and write to | |
403 | * output BIO. If decrypting read salt from input BIO. | |
404 | */ | |
405 | unsigned char *sptr; | |
f6c460e8 F |
406 | size_t str_len = strlen(str); |
407 | ||
2234212c | 408 | if (nosalt) { |
0f113f3e | 409 | sptr = NULL; |
2234212c | 410 | } else { |
0f113f3e MC |
411 | if (enc) { |
412 | if (hsalt) { | |
cbe29648 | 413 | if (!set_hex(hsalt, salt, sizeof(salt))) { |
0f113f3e MC |
414 | BIO_printf(bio_err, "invalid hex salt value\n"); |
415 | goto end; | |
416 | } | |
cbe29648 | 417 | } else if (RAND_bytes(salt, sizeof(salt)) <= 0) { |
0f113f3e | 418 | goto end; |
2234212c | 419 | } |
0f113f3e MC |
420 | /* |
421 | * If -P option then don't bother writing | |
422 | */ | |
423 | if ((printkey != 2) | |
424 | && (BIO_write(wbio, magic, | |
cbe29648 | 425 | sizeof(magic) - 1) != sizeof(magic) - 1 |
0f113f3e MC |
426 | || BIO_write(wbio, |
427 | (char *)salt, | |
cbe29648 | 428 | sizeof(salt)) != sizeof(salt))) { |
0f113f3e MC |
429 | BIO_printf(bio_err, "error writing output file\n"); |
430 | goto end; | |
431 | } | |
cbe29648 | 432 | } else if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf) |
0f113f3e MC |
433 | || BIO_read(rbio, |
434 | (unsigned char *)salt, | |
cbe29648 | 435 | sizeof(salt)) != sizeof(salt)) { |
0f113f3e MC |
436 | BIO_printf(bio_err, "error reading input file\n"); |
437 | goto end; | |
cbe29648 | 438 | } else if (memcmp(mbuf, magic, sizeof(magic) - 1)) { |
0f113f3e MC |
439 | BIO_printf(bio_err, "bad magic number\n"); |
440 | goto end; | |
441 | } | |
442 | ||
443 | sptr = salt; | |
444 | } | |
445 | ||
446 | if (!EVP_BytesToKey(cipher, dgst, sptr, | |
447 | (unsigned char *)str, | |
f6c460e8 | 448 | str_len, 1, key, iv)) { |
0f113f3e MC |
449 | BIO_printf(bio_err, "EVP_BytesToKey failed\n"); |
450 | goto end; | |
451 | } | |
452 | /* | |
453 | * zero the complete buffer or the string passed from the command | |
e3713c36 | 454 | * line. |
0f113f3e MC |
455 | */ |
456 | if (str == strbuf) | |
457 | OPENSSL_cleanse(str, SIZE); | |
458 | else | |
f6c460e8 | 459 | OPENSSL_cleanse(str, str_len); |
0f113f3e | 460 | } |
8920a7cd RL |
461 | if (hiv != NULL) { |
462 | int siz = EVP_CIPHER_iv_length(cipher); | |
463 | if (siz == 0) { | |
464 | BIO_printf(bio_err, "warning: iv not use by this cipher\n"); | |
d5961b22 | 465 | } else if (!set_hex(hiv, iv, siz)) { |
8920a7cd RL |
466 | BIO_printf(bio_err, "invalid hex iv value\n"); |
467 | goto end; | |
468 | } | |
0f113f3e MC |
469 | } |
470 | if ((hiv == NULL) && (str == NULL) | |
471 | && EVP_CIPHER_iv_length(cipher) != 0) { | |
472 | /* | |
473 | * No IV was explicitly set and no IV was generated during | |
474 | * EVP_BytesToKey. Hence the IV is undefined, making correct | |
475 | * decryption impossible. | |
476 | */ | |
477 | BIO_printf(bio_err, "iv undefined\n"); | |
478 | goto end; | |
479 | } | |
1f83edda E |
480 | if (hkey != NULL) { |
481 | if (!set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) { | |
482 | BIO_printf(bio_err, "invalid hex key value\n"); | |
483 | goto end; | |
484 | } | |
485 | /* wiping secret data as we no longer need it */ | |
486 | OPENSSL_cleanse(hkey, strlen(hkey)); | |
0f113f3e MC |
487 | } |
488 | ||
489 | if ((benc = BIO_new(BIO_f_cipher())) == NULL) | |
490 | goto end; | |
491 | ||
492 | /* | |
493 | * Since we may be changing parameters work on the encryption context | |
494 | * rather than calling BIO_set_cipher(). | |
495 | */ | |
496 | ||
497 | BIO_get_cipher_ctx(benc, &ctx); | |
498 | ||
0f113f3e MC |
499 | if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) { |
500 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
501 | EVP_CIPHER_name(cipher)); | |
502 | ERR_print_errors(bio_err); | |
503 | goto end; | |
504 | } | |
505 | ||
506 | if (nopad) | |
507 | EVP_CIPHER_CTX_set_padding(ctx, 0); | |
508 | ||
509 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) { | |
510 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
511 | EVP_CIPHER_name(cipher)); | |
512 | ERR_print_errors(bio_err); | |
513 | goto end; | |
514 | } | |
515 | ||
516 | if (debug) { | |
517 | BIO_set_callback(benc, BIO_debug_callback); | |
518 | BIO_set_callback_arg(benc, (char *)bio_err); | |
519 | } | |
520 | ||
521 | if (printkey) { | |
522 | if (!nosalt) { | |
523 | printf("salt="); | |
524 | for (i = 0; i < (int)sizeof(salt); i++) | |
525 | printf("%02X", salt[i]); | |
526 | printf("\n"); | |
527 | } | |
6c2ff56e | 528 | if (EVP_CIPHER_key_length(cipher) > 0) { |
0f113f3e | 529 | printf("key="); |
6c2ff56e | 530 | for (i = 0; i < EVP_CIPHER_key_length(cipher); i++) |
0f113f3e MC |
531 | printf("%02X", key[i]); |
532 | printf("\n"); | |
533 | } | |
6c2ff56e | 534 | if (EVP_CIPHER_iv_length(cipher) > 0) { |
0f113f3e | 535 | printf("iv ="); |
6c2ff56e | 536 | for (i = 0; i < EVP_CIPHER_iv_length(cipher); i++) |
0f113f3e MC |
537 | printf("%02X", iv[i]); |
538 | printf("\n"); | |
539 | } | |
540 | if (printkey == 2) { | |
541 | ret = 0; | |
542 | goto end; | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
547 | /* Only encrypt/decrypt as we write the file */ | |
548 | if (benc != NULL) | |
549 | wbio = BIO_push(benc, wbio); | |
550 | ||
551 | for (;;) { | |
552 | inl = BIO_read(rbio, (char *)buff, bsize); | |
553 | if (inl <= 0) | |
554 | break; | |
555 | if (BIO_write(wbio, (char *)buff, inl) != inl) { | |
556 | BIO_printf(bio_err, "error writing output file\n"); | |
557 | goto end; | |
558 | } | |
559 | } | |
560 | if (!BIO_flush(wbio)) { | |
561 | BIO_printf(bio_err, "bad decrypt\n"); | |
562 | goto end; | |
563 | } | |
564 | ||
565 | ret = 0; | |
566 | if (verbose) { | |
12997aa9 RS |
567 | BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); |
568 | BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); | |
0f113f3e MC |
569 | } |
570 | end: | |
571 | ERR_print_errors(bio_err); | |
b548a1f1 RS |
572 | OPENSSL_free(strbuf); |
573 | OPENSSL_free(buff); | |
ca3a82c3 RS |
574 | BIO_free(in); |
575 | BIO_free_all(out); | |
576 | BIO_free(benc); | |
577 | BIO_free(b64); | |
8931b30d | 578 | #ifdef ZLIB |
ca3a82c3 | 579 | BIO_free(bzl); |
8931b30d | 580 | #endif |
dd1abd44 | 581 | release_engine(e); |
b548a1f1 | 582 | OPENSSL_free(pass); |
eee95522 | 583 | return ret; |
7e1b7485 RS |
584 | } |
585 | ||
2b305ab0 | 586 | static void show_ciphers(const OBJ_NAME *name, void *arg) |
7e1b7485 | 587 | { |
2b305ab0 | 588 | struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; |
777f1708 | 589 | const EVP_CIPHER *cipher; |
7e1b7485 RS |
590 | |
591 | if (!islower((unsigned char)*name->name)) | |
592 | return; | |
593 | ||
777f1708 P |
594 | /* Filter out ciphers that we cannot use */ |
595 | cipher = EVP_get_cipherbyname(name->name); | |
596 | if (cipher == NULL || | |
597 | (EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 || | |
598 | EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE) | |
599 | return; | |
600 | ||
2b305ab0 P |
601 | BIO_printf(dec->bio, "-%-25s", name->name); |
602 | if (++dec->n == 3) { | |
603 | BIO_printf(dec->bio, "\n"); | |
604 | dec->n = 0; | |
7e1b7485 | 605 | } else |
2b305ab0 | 606 | BIO_printf(dec->bio, " "); |
0f113f3e | 607 | } |
d02b48c6 | 608 | |
d5961b22 | 609 | static int set_hex(const char *in, unsigned char *out, int size) |
0f113f3e MC |
610 | { |
611 | int i, n; | |
612 | unsigned char j; | |
613 | ||
d5961b22 | 614 | i = size * 2; |
0f113f3e | 615 | n = strlen(in); |
d5961b22 E |
616 | if (n > i) { |
617 | BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); | |
618 | n = i; /* ignore exceeding part */ | |
619 | } else if (n < i) { | |
620 | BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); | |
0f113f3e | 621 | } |
d5961b22 | 622 | |
0f113f3e MC |
623 | memset(out, 0, size); |
624 | for (i = 0; i < n; i++) { | |
d5961b22 | 625 | j = (unsigned char)*in++; |
2fa45e6e | 626 | if (!isxdigit(j)) { |
0f113f3e | 627 | BIO_printf(bio_err, "non-hex digit\n"); |
eee95522 | 628 | return 0; |
0f113f3e | 629 | } |
14f051a0 | 630 | j = (unsigned char)OPENSSL_hexchar2int(j); |
0f113f3e MC |
631 | if (i & 1) |
632 | out[i / 2] |= j; | |
633 | else | |
634 | out[i / 2] = (j << 4); | |
635 | } | |
eee95522 | 636 | return 1; |
0f113f3e | 637 | } |