]>
Commit | Line | Data |
---|---|---|
846e33c7 | 1 | /* |
6738bf14 | 2 | * Copyright 1995-2018 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, | |
405988f2 | 47 | OPT_UPPER_S, OPT_IV, OPT_MD, OPT_ITER, OPT_PBKDF2, OPT_CIPHER, |
3ee1eac2 | 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"}, |
405988f2 E |
77 | {"iter", OPT_ITER, 'p', "Specify the iteration count and force use of PBKDF2"}, |
78 | {"pbkdf2", OPT_PBKDF2, '-', "Use password-based key derivation function 2"}, | |
7e1b7485 RS |
79 | {"none", OPT_NONE, '-', "Don't encrypt"}, |
80 | {"", OPT_CIPHER, '-', "Any supported cipher"}, | |
3ee1eac2 | 81 | OPT_R_OPTIONS, |
9c3bcfa0 RS |
82 | #ifdef ZLIB |
83 | {"z", OPT_Z, '-', "Use zlib as the 'encryption'"}, | |
84 | #endif | |
85 | #ifndef OPENSSL_NO_ENGINE | |
86 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
87 | #endif | |
7e1b7485 RS |
88 | {NULL} |
89 | }; | |
90 | ||
91 | int enc_main(int argc, char **argv) | |
0f113f3e | 92 | { |
7e1b7485 | 93 | static char buf[128]; |
0f113f3e | 94 | static const char magic[] = "Salted__"; |
dd1abd44 | 95 | ENGINE *e = NULL; |
7e1b7485 RS |
96 | BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = |
97 | NULL, *wbio = NULL; | |
98 | EVP_CIPHER_CTX *ctx = NULL; | |
99 | const EVP_CIPHER *cipher = NULL, *c; | |
100 | const EVP_MD *dgst = NULL; | |
333b070e | 101 | char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; |
7e1b7485 RS |
102 | char *infile = NULL, *outfile = NULL, *prog; |
103 | char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; | |
cbe29648 | 104 | char mbuf[sizeof(magic) - 1]; |
7e1b7485 RS |
105 | OPTION_CHOICE o; |
106 | int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; | |
5f62e044 RL |
107 | int enc = 1, printkey = 0, i, k; |
108 | int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; | |
700b4a4a | 109 | int ret = 1, inl, nopad = 0; |
0f113f3e | 110 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; |
7e1b7485 | 111 | unsigned char *buff = NULL, salt[PKCS5_SALT_LEN]; |
405988f2 E |
112 | int pbkdf2 = 0; |
113 | int iter = 0; | |
bd4850df | 114 | long n; |
2b305ab0 | 115 | struct doall_enc_ciphers dec; |
8931b30d | 116 | #ifdef ZLIB |
0f113f3e MC |
117 | int do_zlib = 0; |
118 | BIO *bzl = NULL; | |
8931b30d | 119 | #endif |
3647bee2 | 120 | |
0f113f3e | 121 | /* first check the program name */ |
7e1b7485 | 122 | prog = opt_progname(argv[0]); |
2234212c | 123 | if (strcmp(prog, "base64") == 0) { |
5f62e044 | 124 | base64 = 1; |
8931b30d | 125 | #ifdef ZLIB |
2234212c | 126 | } else if (strcmp(prog, "zlib") == 0) { |
0f113f3e | 127 | do_zlib = 1; |
8931b30d | 128 | #endif |
2234212c | 129 | } else { |
7e1b7485 RS |
130 | cipher = EVP_get_cipherbyname(prog); |
131 | if (cipher == NULL && strcmp(prog, "enc") != 0) { | |
132 | BIO_printf(bio_err, "%s is not a known cipher\n", prog); | |
133 | goto end; | |
134 | } | |
0f113f3e MC |
135 | } |
136 | ||
7e1b7485 RS |
137 | prog = opt_init(argc, argv, enc_options); |
138 | while ((o = opt_next()) != OPT_EOF) { | |
139 | switch (o) { | |
140 | case OPT_EOF: | |
141 | case OPT_ERR: | |
142 | opthelp: | |
143 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
144 | goto end; | |
145 | case OPT_HELP: | |
146 | opt_help(enc_options); | |
147 | ret = 0; | |
3b5bea36 RS |
148 | goto end; |
149 | case OPT_LIST: | |
341de5f1 | 150 | BIO_printf(bio_out, "Supported ciphers:\n"); |
2b305ab0 P |
151 | dec.bio = bio_out; |
152 | dec.n = 0; | |
7e1b7485 | 153 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
2b305ab0 | 154 | show_ciphers, &dec); |
341de5f1 RL |
155 | BIO_printf(bio_out, "\n"); |
156 | ret = 0; | |
7e1b7485 RS |
157 | goto end; |
158 | case OPT_E: | |
0f113f3e | 159 | enc = 1; |
7e1b7485 RS |
160 | break; |
161 | case OPT_IN: | |
162 | infile = opt_arg(); | |
163 | break; | |
164 | case OPT_OUT: | |
165 | outfile = opt_arg(); | |
166 | break; | |
167 | case OPT_PASS: | |
168 | passarg = opt_arg(); | |
169 | break; | |
170 | case OPT_ENGINE: | |
dd1abd44 | 171 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
172 | break; |
173 | case OPT_D: | |
0f113f3e | 174 | enc = 0; |
7e1b7485 RS |
175 | break; |
176 | case OPT_P: | |
0f113f3e | 177 | printkey = 1; |
7e1b7485 RS |
178 | break; |
179 | case OPT_V: | |
0f113f3e | 180 | verbose = 1; |
7e1b7485 RS |
181 | break; |
182 | case OPT_NOPAD: | |
0f113f3e | 183 | nopad = 1; |
7e1b7485 RS |
184 | break; |
185 | case OPT_SALT: | |
0f113f3e | 186 | nosalt = 0; |
7e1b7485 RS |
187 | break; |
188 | case OPT_NOSALT: | |
0f113f3e | 189 | nosalt = 1; |
7e1b7485 RS |
190 | break; |
191 | case OPT_DEBUG: | |
0f113f3e | 192 | debug = 1; |
7e1b7485 RS |
193 | break; |
194 | case OPT_UPPER_P: | |
0f113f3e | 195 | printkey = 2; |
7e1b7485 RS |
196 | break; |
197 | case OPT_UPPER_A: | |
0f113f3e | 198 | olb64 = 1; |
7e1b7485 RS |
199 | break; |
200 | case OPT_A: | |
5f62e044 | 201 | base64 = 1; |
7e1b7485 RS |
202 | break; |
203 | case OPT_Z: | |
8931b30d | 204 | #ifdef ZLIB |
0f113f3e | 205 | do_zlib = 1; |
8931b30d | 206 | #endif |
7e1b7485 RS |
207 | break; |
208 | case OPT_BUFSIZE: | |
209 | p = opt_arg(); | |
210 | i = (int)strlen(p) - 1; | |
211 | k = i >= 1 && p[i] == 'k'; | |
212 | if (k) | |
213 | p[i] = '\0'; | |
bd4850df RS |
214 | if (!opt_long(opt_arg(), &n) |
215 | || n < 0 || (k && n >= LONG_MAX / 1024)) | |
7e1b7485 RS |
216 | goto opthelp; |
217 | if (k) | |
218 | n *= 1024; | |
219 | bsize = (int)n; | |
220 | break; | |
221 | case OPT_K: | |
222 | str = opt_arg(); | |
223 | break; | |
224 | case OPT_KFILE: | |
bdd58d98 | 225 | in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); |
7e1b7485 RS |
226 | if (in == NULL) |
227 | goto opthelp; | |
cbe29648 | 228 | i = BIO_gets(in, buf, sizeof(buf)); |
7e1b7485 RS |
229 | BIO_free(in); |
230 | in = NULL; | |
231 | if (i <= 0) { | |
232 | BIO_printf(bio_err, | |
233 | "%s Can't read key from %s\n", prog, opt_arg()); | |
234 | goto opthelp; | |
0f113f3e | 235 | } |
7e1b7485 RS |
236 | while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) |
237 | buf[i] = '\0'; | |
238 | if (i <= 0) { | |
239 | BIO_printf(bio_err, "%s: zero length password\n", prog); | |
240 | goto opthelp; | |
0f113f3e MC |
241 | } |
242 | str = buf; | |
7e1b7485 RS |
243 | break; |
244 | case OPT_UPPER_K: | |
245 | hkey = opt_arg(); | |
246 | break; | |
247 | case OPT_UPPER_S: | |
248 | hsalt = opt_arg(); | |
249 | break; | |
250 | case OPT_IV: | |
251 | hiv = opt_arg(); | |
252 | break; | |
253 | case OPT_MD: | |
254 | if (!opt_md(opt_arg(), &dgst)) | |
255 | goto opthelp; | |
256 | break; | |
7e1b7485 RS |
257 | case OPT_CIPHER: |
258 | if (!opt_cipher(opt_unknown(), &c)) | |
259 | goto opthelp; | |
0f113f3e | 260 | cipher = c; |
7e1b7485 | 261 | break; |
405988f2 E |
262 | case OPT_ITER: |
263 | if (!opt_int(opt_arg(), &iter)) | |
264 | goto opthelp; | |
265 | pbkdf2 = 1; | |
266 | break; | |
267 | case OPT_PBKDF2: | |
268 | pbkdf2 = 1; | |
269 | if (iter == 0) /* do not overwrite a chosen value */ | |
270 | iter = 10000; | |
271 | break; | |
7e1b7485 | 272 | case OPT_NONE: |
0f113f3e | 273 | cipher = NULL; |
7e1b7485 | 274 | break; |
3ee1eac2 RS |
275 | case OPT_R_CASES: |
276 | if (!opt_rand(o)) | |
277 | goto end; | |
278 | break; | |
0f113f3e | 279 | } |
0f113f3e | 280 | } |
c27363f5 RS |
281 | if (opt_num_rest() != 0) { |
282 | BIO_printf(bio_err, "Extra arguments given.\n"); | |
283 | goto opthelp; | |
284 | } | |
d02b48c6 | 285 | |
0f113f3e | 286 | if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) { |
7e1b7485 | 287 | BIO_printf(bio_err, "%s: AEAD ciphers not supported\n", prog); |
0f113f3e MC |
288 | goto end; |
289 | } | |
290 | ||
291 | if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) { | |
7e1b7485 | 292 | BIO_printf(bio_err, "%s XTS ciphers not supported\n", prog); |
0f113f3e MC |
293 | goto end; |
294 | } | |
295 | ||
7e1b7485 | 296 | if (dgst == NULL) |
f8547f62 | 297 | dgst = EVP_sha256(); |
0f113f3e | 298 | |
405988f2 E |
299 | if (iter == 0) |
300 | iter = 1; | |
301 | ||
7e1b7485 | 302 | /* It must be large enough for a base64 encoded line */ |
5f62e044 | 303 | if (base64 && bsize < 80) |
7e1b7485 RS |
304 | bsize = 80; |
305 | if (verbose) | |
306 | BIO_printf(bio_err, "bufsize=%d\n", bsize); | |
0f113f3e | 307 | |
802d2243 RL |
308 | #ifdef ZLIB |
309 | if (!do_zlib) | |
310 | #endif | |
311 | if (base64) { | |
312 | if (enc) | |
313 | outformat = FORMAT_BASE64; | |
314 | else | |
315 | informat = FORMAT_BASE64; | |
316 | } | |
5f62e044 | 317 | |
68dc6824 RS |
318 | strbuf = app_malloc(SIZE, "strbuf"); |
319 | buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); | |
0f113f3e | 320 | |
7e1b7485 | 321 | if (infile == NULL) { |
5f62e044 | 322 | in = dup_bio_in(informat); |
2234212c | 323 | } else { |
5f62e044 | 324 | in = bio_open_default(infile, 'r', informat); |
2234212c | 325 | } |
7e1b7485 RS |
326 | if (in == NULL) |
327 | goto end; | |
0f113f3e | 328 | |
2234212c | 329 | if (str == NULL && passarg != NULL) { |
7e1b7485 | 330 | if (!app_passwd(passarg, NULL, &pass, NULL)) { |
0f113f3e MC |
331 | BIO_printf(bio_err, "Error getting password\n"); |
332 | goto end; | |
333 | } | |
334 | str = pass; | |
335 | } | |
336 | ||
337 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { | |
923b1857 | 338 | if (1) { |
48feaceb | 339 | #ifndef OPENSSL_NO_UI_CONSOLE |
923b1857 RL |
340 | for (;;) { |
341 | char prompt[200]; | |
0f113f3e | 342 | |
eee95522 | 343 | BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", |
0904e79a RS |
344 | OBJ_nid2ln(EVP_CIPHER_nid(cipher)), |
345 | (enc) ? "encryption" : "decryption"); | |
923b1857 RL |
346 | strbuf[0] = '\0'; |
347 | i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); | |
348 | if (i == 0) { | |
349 | if (strbuf[0] == '\0') { | |
350 | ret = 1; | |
351 | goto end; | |
352 | } | |
353 | str = strbuf; | |
354 | break; | |
355 | } | |
356 | if (i < 0) { | |
357 | BIO_printf(bio_err, "bad password read\n"); | |
0f113f3e MC |
358 | goto end; |
359 | } | |
0f113f3e | 360 | } |
923b1857 RL |
361 | } else { |
362 | #endif | |
363 | BIO_printf(bio_err, "password required\n"); | |
364 | goto end; | |
0f113f3e MC |
365 | } |
366 | } | |
367 | ||
5f62e044 | 368 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
369 | if (out == NULL) |
370 | goto end; | |
0f113f3e | 371 | |
7a82f778 RL |
372 | if (debug) { |
373 | BIO_set_callback(in, BIO_debug_callback); | |
374 | BIO_set_callback(out, BIO_debug_callback); | |
375 | BIO_set_callback_arg(in, (char *)bio_err); | |
376 | BIO_set_callback_arg(out, (char *)bio_err); | |
377 | } | |
378 | ||
0f113f3e MC |
379 | rbio = in; |
380 | wbio = out; | |
fd699ac5 | 381 | |
8931b30d | 382 | #ifdef ZLIB |
0f113f3e MC |
383 | if (do_zlib) { |
384 | if ((bzl = BIO_new(BIO_f_zlib())) == NULL) | |
385 | goto end; | |
7a82f778 RL |
386 | if (debug) { |
387 | BIO_set_callback(bzl, BIO_debug_callback); | |
388 | BIO_set_callback_arg(bzl, (char *)bio_err); | |
389 | } | |
0f113f3e MC |
390 | if (enc) |
391 | wbio = BIO_push(bzl, wbio); | |
392 | else | |
393 | rbio = BIO_push(bzl, rbio); | |
394 | } | |
8931b30d DSH |
395 | #endif |
396 | ||
5f62e044 | 397 | if (base64) { |
0f113f3e MC |
398 | if ((b64 = BIO_new(BIO_f_base64())) == NULL) |
399 | goto end; | |
400 | if (debug) { | |
401 | BIO_set_callback(b64, BIO_debug_callback); | |
402 | BIO_set_callback_arg(b64, (char *)bio_err); | |
403 | } | |
404 | if (olb64) | |
405 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
406 | if (enc) | |
407 | wbio = BIO_push(b64, wbio); | |
408 | else | |
409 | rbio = BIO_push(b64, rbio); | |
410 | } | |
411 | ||
412 | if (cipher != NULL) { | |
413 | /* | |
414 | * Note that str is NULL if a key was passed on the command line, so | |
415 | * we get no salt in that case. Is this a bug? | |
416 | */ | |
417 | if (str != NULL) { | |
418 | /* | |
419 | * Salt handling: if encrypting generate a salt and write to | |
420 | * output BIO. If decrypting read salt from input BIO. | |
421 | */ | |
422 | unsigned char *sptr; | |
f6c460e8 F |
423 | size_t str_len = strlen(str); |
424 | ||
2234212c | 425 | if (nosalt) { |
0f113f3e | 426 | sptr = NULL; |
2234212c | 427 | } else { |
0f113f3e MC |
428 | if (enc) { |
429 | if (hsalt) { | |
cbe29648 | 430 | if (!set_hex(hsalt, salt, sizeof(salt))) { |
0f113f3e MC |
431 | BIO_printf(bio_err, "invalid hex salt value\n"); |
432 | goto end; | |
433 | } | |
cbe29648 | 434 | } else if (RAND_bytes(salt, sizeof(salt)) <= 0) { |
0f113f3e | 435 | goto end; |
2234212c | 436 | } |
0f113f3e MC |
437 | /* |
438 | * If -P option then don't bother writing | |
439 | */ | |
440 | if ((printkey != 2) | |
441 | && (BIO_write(wbio, magic, | |
cbe29648 | 442 | sizeof(magic) - 1) != sizeof(magic) - 1 |
0f113f3e MC |
443 | || BIO_write(wbio, |
444 | (char *)salt, | |
cbe29648 | 445 | sizeof(salt)) != sizeof(salt))) { |
0f113f3e MC |
446 | BIO_printf(bio_err, "error writing output file\n"); |
447 | goto end; | |
448 | } | |
cbe29648 | 449 | } else if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf) |
0f113f3e MC |
450 | || BIO_read(rbio, |
451 | (unsigned char *)salt, | |
cbe29648 | 452 | sizeof(salt)) != sizeof(salt)) { |
0f113f3e MC |
453 | BIO_printf(bio_err, "error reading input file\n"); |
454 | goto end; | |
cbe29648 | 455 | } else if (memcmp(mbuf, magic, sizeof(magic) - 1)) { |
0f113f3e MC |
456 | BIO_printf(bio_err, "bad magic number\n"); |
457 | goto end; | |
458 | } | |
0f113f3e MC |
459 | sptr = salt; |
460 | } | |
461 | ||
405988f2 E |
462 | if (pbkdf2 == 1) { |
463 | /* | |
464 | * derive key and default iv | |
465 | * concatenated into a temporary buffer | |
466 | */ | |
467 | unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; | |
468 | int iklen = EVP_CIPHER_key_length(cipher); | |
469 | int ivlen = EVP_CIPHER_iv_length(cipher); | |
470 | /* not needed if HASH_UPDATE() is fixed : */ | |
471 | int islen = (sptr != NULL ? sizeof(salt) : 0); | |
472 | if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, | |
473 | iter, dgst, iklen+ivlen, tmpkeyiv)) { | |
474 | BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); | |
475 | goto end; | |
476 | } | |
477 | /* split and move data back to global buffer */ | |
478 | memcpy(key, tmpkeyiv, iklen); | |
479 | memcpy(iv, tmpkeyiv+iklen, ivlen); | |
480 | } else { | |
481 | BIO_printf(bio_err, "*** WARNING : " | |
482 | "deprecated key derivation used.\n" | |
483 | "Using -iter or -pbkdf2 would be better.\n"); | |
484 | if (!EVP_BytesToKey(cipher, dgst, sptr, | |
485 | (unsigned char *)str, str_len, | |
486 | 1, key, iv)) { | |
487 | BIO_printf(bio_err, "EVP_BytesToKey failed\n"); | |
488 | goto end; | |
489 | } | |
0f113f3e MC |
490 | } |
491 | /* | |
492 | * zero the complete buffer or the string passed from the command | |
e3713c36 | 493 | * line. |
0f113f3e MC |
494 | */ |
495 | if (str == strbuf) | |
496 | OPENSSL_cleanse(str, SIZE); | |
497 | else | |
f6c460e8 | 498 | OPENSSL_cleanse(str, str_len); |
0f113f3e | 499 | } |
8920a7cd RL |
500 | if (hiv != NULL) { |
501 | int siz = EVP_CIPHER_iv_length(cipher); | |
502 | if (siz == 0) { | |
503 | BIO_printf(bio_err, "warning: iv not use by this cipher\n"); | |
d5961b22 | 504 | } else if (!set_hex(hiv, iv, siz)) { |
8920a7cd RL |
505 | BIO_printf(bio_err, "invalid hex iv value\n"); |
506 | goto end; | |
507 | } | |
0f113f3e MC |
508 | } |
509 | if ((hiv == NULL) && (str == NULL) | |
510 | && EVP_CIPHER_iv_length(cipher) != 0) { | |
511 | /* | |
405988f2 E |
512 | * No IV was explicitly set and no IV was generated. |
513 | * Hence the IV is undefined, making correct decryption impossible. | |
0f113f3e MC |
514 | */ |
515 | BIO_printf(bio_err, "iv undefined\n"); | |
516 | goto end; | |
517 | } | |
1f83edda E |
518 | if (hkey != NULL) { |
519 | if (!set_hex(hkey, key, EVP_CIPHER_key_length(cipher))) { | |
520 | BIO_printf(bio_err, "invalid hex key value\n"); | |
521 | goto end; | |
522 | } | |
523 | /* wiping secret data as we no longer need it */ | |
524 | OPENSSL_cleanse(hkey, strlen(hkey)); | |
0f113f3e MC |
525 | } |
526 | ||
527 | if ((benc = BIO_new(BIO_f_cipher())) == NULL) | |
528 | goto end; | |
529 | ||
530 | /* | |
531 | * Since we may be changing parameters work on the encryption context | |
532 | * rather than calling BIO_set_cipher(). | |
533 | */ | |
534 | ||
535 | BIO_get_cipher_ctx(benc, &ctx); | |
536 | ||
0f113f3e MC |
537 | if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) { |
538 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
539 | EVP_CIPHER_name(cipher)); | |
540 | ERR_print_errors(bio_err); | |
541 | goto end; | |
542 | } | |
543 | ||
544 | if (nopad) | |
545 | EVP_CIPHER_CTX_set_padding(ctx, 0); | |
546 | ||
547 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) { | |
548 | BIO_printf(bio_err, "Error setting cipher %s\n", | |
549 | EVP_CIPHER_name(cipher)); | |
550 | ERR_print_errors(bio_err); | |
551 | goto end; | |
552 | } | |
553 | ||
554 | if (debug) { | |
555 | BIO_set_callback(benc, BIO_debug_callback); | |
556 | BIO_set_callback_arg(benc, (char *)bio_err); | |
557 | } | |
558 | ||
559 | if (printkey) { | |
560 | if (!nosalt) { | |
561 | printf("salt="); | |
562 | for (i = 0; i < (int)sizeof(salt); i++) | |
563 | printf("%02X", salt[i]); | |
564 | printf("\n"); | |
565 | } | |
6c2ff56e | 566 | if (EVP_CIPHER_key_length(cipher) > 0) { |
0f113f3e | 567 | printf("key="); |
6c2ff56e | 568 | for (i = 0; i < EVP_CIPHER_key_length(cipher); i++) |
0f113f3e MC |
569 | printf("%02X", key[i]); |
570 | printf("\n"); | |
571 | } | |
6c2ff56e | 572 | if (EVP_CIPHER_iv_length(cipher) > 0) { |
0f113f3e | 573 | printf("iv ="); |
6c2ff56e | 574 | for (i = 0; i < EVP_CIPHER_iv_length(cipher); i++) |
0f113f3e MC |
575 | printf("%02X", iv[i]); |
576 | printf("\n"); | |
577 | } | |
578 | if (printkey == 2) { | |
579 | ret = 0; | |
580 | goto end; | |
581 | } | |
582 | } | |
583 | } | |
584 | ||
585 | /* Only encrypt/decrypt as we write the file */ | |
586 | if (benc != NULL) | |
587 | wbio = BIO_push(benc, wbio); | |
588 | ||
589 | for (;;) { | |
590 | inl = BIO_read(rbio, (char *)buff, bsize); | |
591 | if (inl <= 0) | |
592 | break; | |
593 | if (BIO_write(wbio, (char *)buff, inl) != inl) { | |
594 | BIO_printf(bio_err, "error writing output file\n"); | |
595 | goto end; | |
596 | } | |
597 | } | |
598 | if (!BIO_flush(wbio)) { | |
599 | BIO_printf(bio_err, "bad decrypt\n"); | |
600 | goto end; | |
601 | } | |
602 | ||
603 | ret = 0; | |
604 | if (verbose) { | |
12997aa9 RS |
605 | BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); |
606 | BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); | |
0f113f3e MC |
607 | } |
608 | end: | |
609 | ERR_print_errors(bio_err); | |
b548a1f1 RS |
610 | OPENSSL_free(strbuf); |
611 | OPENSSL_free(buff); | |
ca3a82c3 RS |
612 | BIO_free(in); |
613 | BIO_free_all(out); | |
614 | BIO_free(benc); | |
615 | BIO_free(b64); | |
8931b30d | 616 | #ifdef ZLIB |
ca3a82c3 | 617 | BIO_free(bzl); |
8931b30d | 618 | #endif |
dd1abd44 | 619 | release_engine(e); |
b548a1f1 | 620 | OPENSSL_free(pass); |
eee95522 | 621 | return ret; |
7e1b7485 RS |
622 | } |
623 | ||
2b305ab0 | 624 | static void show_ciphers(const OBJ_NAME *name, void *arg) |
7e1b7485 | 625 | { |
2b305ab0 | 626 | struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; |
777f1708 | 627 | const EVP_CIPHER *cipher; |
7e1b7485 RS |
628 | |
629 | if (!islower((unsigned char)*name->name)) | |
630 | return; | |
631 | ||
777f1708 P |
632 | /* Filter out ciphers that we cannot use */ |
633 | cipher = EVP_get_cipherbyname(name->name); | |
634 | if (cipher == NULL || | |
635 | (EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 || | |
636 | EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE) | |
637 | return; | |
638 | ||
2b305ab0 P |
639 | BIO_printf(dec->bio, "-%-25s", name->name); |
640 | if (++dec->n == 3) { | |
641 | BIO_printf(dec->bio, "\n"); | |
642 | dec->n = 0; | |
7e1b7485 | 643 | } else |
2b305ab0 | 644 | BIO_printf(dec->bio, " "); |
0f113f3e | 645 | } |
d02b48c6 | 646 | |
d5961b22 | 647 | static int set_hex(const char *in, unsigned char *out, int size) |
0f113f3e MC |
648 | { |
649 | int i, n; | |
650 | unsigned char j; | |
651 | ||
d5961b22 | 652 | i = size * 2; |
0f113f3e | 653 | n = strlen(in); |
d5961b22 E |
654 | if (n > i) { |
655 | BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); | |
656 | n = i; /* ignore exceeding part */ | |
657 | } else if (n < i) { | |
658 | BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); | |
0f113f3e | 659 | } |
d5961b22 | 660 | |
0f113f3e MC |
661 | memset(out, 0, size); |
662 | for (i = 0; i < n; i++) { | |
d5961b22 | 663 | j = (unsigned char)*in++; |
2fa45e6e | 664 | if (!isxdigit(j)) { |
0f113f3e | 665 | BIO_printf(bio_err, "non-hex digit\n"); |
eee95522 | 666 | return 0; |
0f113f3e | 667 | } |
14f051a0 | 668 | j = (unsigned char)OPENSSL_hexchar2int(j); |
0f113f3e MC |
669 | if (i & 1) |
670 | out[i / 2] |= j; | |
671 | else | |
672 | out[i / 2] = (j << 4); | |
673 | } | |
eee95522 | 674 | return 1; |
0f113f3e | 675 | } |