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Commit | Line | Data |
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846e33c7 | 1 | /* |
fecb3aae | 2 | * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
dffa7520 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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 | 41 | typedef enum OPTION_choice { |
b0f96018 | 42 | OPT_COMMON, |
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, |
6bd4e3f2 | 48 | OPT_R_ENUM, OPT_PROV_ENUM |
7e1b7485 RS |
49 | } OPTION_CHOICE; |
50 | ||
44c83ebd | 51 | const OPTIONS enc_options[] = { |
5388f986 | 52 | OPT_SECTION("General"), |
7e1b7485 | 53 | {"help", OPT_HELP, '-', "Display this summary"}, |
f62d67b6 | 54 | {"list", OPT_LIST, '-', "List ciphers"}, |
936c2b9e | 55 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
f62d67b6 | 56 | {"ciphers", OPT_LIST, '-', "Alias for -list"}, |
57 | #endif | |
7e1b7485 RS |
58 | {"e", OPT_E, '-', "Encrypt"}, |
59 | {"d", OPT_D, '-', "Decrypt"}, | |
60 | {"p", OPT_P, '-', "Print the iv/key"}, | |
61 | {"P", OPT_UPPER_P, '-', "Print the iv/key and exit"}, | |
5388f986 RS |
62 | #ifndef OPENSSL_NO_ENGINE |
63 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
64 | #endif | |
65 | ||
66 | OPT_SECTION("Input"), | |
67 | {"in", OPT_IN, '<', "Input file"}, | |
68 | {"k", OPT_K, 's', "Passphrase"}, | |
69 | {"kfile", OPT_KFILE, '<', "Read passphrase from file"}, | |
70 | ||
71 | OPT_SECTION("Output"), | |
72 | {"out", OPT_OUT, '>', "Output file"}, | |
73 | {"pass", OPT_PASS, 's', "Passphrase source"}, | |
9a13bb38 | 74 | {"v", OPT_V, '-', "Verbose output"}, |
9a13bb38 RS |
75 | {"a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag"}, |
76 | {"base64", OPT_A, '-', "Same as option -a"}, | |
77 | {"A", OPT_UPPER_A, '-', | |
78 | "Used with -[base64|a] to specify base64 buffer as a single line"}, | |
5388f986 RS |
79 | |
80 | OPT_SECTION("Encryption"), | |
81 | {"nopad", OPT_NOPAD, '-', "Disable standard block padding"}, | |
82 | {"salt", OPT_SALT, '-', "Use salt in the KDF (default)"}, | |
83 | {"nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF"}, | |
84 | {"debug", OPT_DEBUG, '-', "Print debug info"}, | |
85 | ||
7e1b7485 | 86 | {"bufsize", OPT_BUFSIZE, 's', "Buffer size"}, |
b256f717 | 87 | {"K", OPT_UPPER_K, 's', "Raw key, in hex"}, |
7e1b7485 RS |
88 | {"S", OPT_UPPER_S, 's', "Salt, in hex"}, |
89 | {"iv", OPT_IV, 's', "IV in hex"}, | |
5507b961 | 90 | {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"}, |
405988f2 E |
91 | {"iter", OPT_ITER, 'p', "Specify the iteration count and force use of PBKDF2"}, |
92 | {"pbkdf2", OPT_PBKDF2, '-', "Use password-based key derivation function 2"}, | |
7e1b7485 | 93 | {"none", OPT_NONE, '-', "Don't encrypt"}, |
59d21298 | 94 | #ifndef OPENSSL_NO_ZLIB |
6635ea53 | 95 | {"z", OPT_Z, '-', "Compress or decompress encrypted data using zlib"}, |
9c3bcfa0 | 96 | #endif |
5388f986 RS |
97 | {"", OPT_CIPHER, '-', "Any supported cipher"}, |
98 | ||
99 | OPT_R_OPTIONS, | |
6bd4e3f2 | 100 | OPT_PROV_OPTIONS, |
7e1b7485 RS |
101 | {NULL} |
102 | }; | |
103 | ||
104 | int enc_main(int argc, char **argv) | |
0f113f3e | 105 | { |
7e1b7485 | 106 | static char buf[128]; |
0f113f3e | 107 | static const char magic[] = "Salted__"; |
dd1abd44 | 108 | ENGINE *e = NULL; |
7e1b7485 RS |
109 | BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = |
110 | NULL, *wbio = NULL; | |
111 | EVP_CIPHER_CTX *ctx = NULL; | |
606a417f RS |
112 | EVP_CIPHER *cipher = NULL; |
113 | EVP_MD *dgst = NULL; | |
d0190e11 | 114 | const char *digestname = NULL; |
333b070e | 115 | char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; |
50ca7e18 | 116 | char *infile = NULL, *outfile = NULL, *prog; |
7e1b7485 | 117 | char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; |
50ca7e18 | 118 | const char *ciphername = NULL; |
cbe29648 | 119 | char mbuf[sizeof(magic) - 1]; |
7e1b7485 RS |
120 | OPTION_CHOICE o; |
121 | int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; | |
5f62e044 RL |
122 | int enc = 1, printkey = 0, i, k; |
123 | int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; | |
700b4a4a | 124 | int ret = 1, inl, nopad = 0; |
0f113f3e | 125 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; |
7e1b7485 | 126 | unsigned char *buff = NULL, salt[PKCS5_SALT_LEN]; |
405988f2 E |
127 | int pbkdf2 = 0; |
128 | int iter = 0; | |
bd4850df | 129 | long n; |
7850cc83 E |
130 | int streamable = 1; |
131 | int wrap = 0; | |
2b305ab0 | 132 | struct doall_enc_ciphers dec; |
59d21298 | 133 | #ifndef OPENSSL_NO_ZLIB |
0f113f3e MC |
134 | int do_zlib = 0; |
135 | BIO *bzl = NULL; | |
8931b30d | 136 | #endif |
12e96a23 TS |
137 | int do_brotli = 0; |
138 | BIO *bbrot = NULL; | |
caf9317d TS |
139 | int do_zstd = 0; |
140 | BIO *bzstd = NULL; | |
3647bee2 | 141 | |
33720392 | 142 | /* first check the command name */ |
50ca7e18 | 143 | if (strcmp(argv[0], "base64") == 0) |
5f62e044 | 144 | base64 = 1; |
59d21298 | 145 | #ifndef OPENSSL_NO_ZLIB |
50ca7e18 | 146 | else if (strcmp(argv[0], "zlib") == 0) |
0f113f3e | 147 | do_zlib = 1; |
12e96a23 TS |
148 | #endif |
149 | #ifndef OPENSSL_NO_BROTLI | |
150 | else if (strcmp(argv[0], "brotli") == 0) | |
151 | do_brotli = 1; | |
caf9317d TS |
152 | #endif |
153 | #ifndef OPENSSL_NO_ZSTD | |
154 | else if (strcmp(argv[0], "zstd") == 0) | |
155 | do_zstd = 1; | |
8931b30d | 156 | #endif |
50ca7e18 RS |
157 | else if (strcmp(argv[0], "enc") != 0) |
158 | ciphername = argv[0]; | |
0f113f3e | 159 | |
2c272447 | 160 | opt_set_unknown_name("cipher"); |
7e1b7485 RS |
161 | prog = opt_init(argc, argv, enc_options); |
162 | while ((o = opt_next()) != OPT_EOF) { | |
163 | switch (o) { | |
164 | case OPT_EOF: | |
165 | case OPT_ERR: | |
166 | opthelp: | |
167 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
168 | goto end; | |
169 | case OPT_HELP: | |
170 | opt_help(enc_options); | |
171 | ret = 0; | |
3b5bea36 RS |
172 | goto end; |
173 | case OPT_LIST: | |
341de5f1 | 174 | BIO_printf(bio_out, "Supported ciphers:\n"); |
2b305ab0 P |
175 | dec.bio = bio_out; |
176 | dec.n = 0; | |
7e1b7485 | 177 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
2b305ab0 | 178 | show_ciphers, &dec); |
341de5f1 RL |
179 | BIO_printf(bio_out, "\n"); |
180 | ret = 0; | |
7e1b7485 RS |
181 | goto end; |
182 | case OPT_E: | |
0f113f3e | 183 | enc = 1; |
7e1b7485 RS |
184 | break; |
185 | case OPT_IN: | |
186 | infile = opt_arg(); | |
187 | break; | |
188 | case OPT_OUT: | |
189 | outfile = opt_arg(); | |
190 | break; | |
191 | case OPT_PASS: | |
192 | passarg = opt_arg(); | |
193 | break; | |
194 | case OPT_ENGINE: | |
dd1abd44 | 195 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
196 | break; |
197 | case OPT_D: | |
0f113f3e | 198 | enc = 0; |
7e1b7485 RS |
199 | break; |
200 | case OPT_P: | |
0f113f3e | 201 | printkey = 1; |
7e1b7485 RS |
202 | break; |
203 | case OPT_V: | |
0f113f3e | 204 | verbose = 1; |
7e1b7485 RS |
205 | break; |
206 | case OPT_NOPAD: | |
0f113f3e | 207 | nopad = 1; |
7e1b7485 RS |
208 | break; |
209 | case OPT_SALT: | |
0f113f3e | 210 | nosalt = 0; |
7e1b7485 RS |
211 | break; |
212 | case OPT_NOSALT: | |
0f113f3e | 213 | nosalt = 1; |
7e1b7485 RS |
214 | break; |
215 | case OPT_DEBUG: | |
0f113f3e | 216 | debug = 1; |
7e1b7485 RS |
217 | break; |
218 | case OPT_UPPER_P: | |
0f113f3e | 219 | printkey = 2; |
7e1b7485 RS |
220 | break; |
221 | case OPT_UPPER_A: | |
0f113f3e | 222 | olb64 = 1; |
7e1b7485 RS |
223 | break; |
224 | case OPT_A: | |
5f62e044 | 225 | base64 = 1; |
7e1b7485 RS |
226 | break; |
227 | case OPT_Z: | |
59d21298 | 228 | #ifndef OPENSSL_NO_ZLIB |
0f113f3e | 229 | do_zlib = 1; |
8931b30d | 230 | #endif |
7e1b7485 RS |
231 | break; |
232 | case OPT_BUFSIZE: | |
233 | p = opt_arg(); | |
234 | i = (int)strlen(p) - 1; | |
235 | k = i >= 1 && p[i] == 'k'; | |
236 | if (k) | |
237 | p[i] = '\0'; | |
bd4850df RS |
238 | if (!opt_long(opt_arg(), &n) |
239 | || n < 0 || (k && n >= LONG_MAX / 1024)) | |
7e1b7485 RS |
240 | goto opthelp; |
241 | if (k) | |
242 | n *= 1024; | |
243 | bsize = (int)n; | |
244 | break; | |
245 | case OPT_K: | |
246 | str = opt_arg(); | |
247 | break; | |
248 | case OPT_KFILE: | |
bdd58d98 | 249 | in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); |
7e1b7485 RS |
250 | if (in == NULL) |
251 | goto opthelp; | |
cbe29648 | 252 | i = BIO_gets(in, buf, sizeof(buf)); |
7e1b7485 RS |
253 | BIO_free(in); |
254 | in = NULL; | |
255 | if (i <= 0) { | |
256 | BIO_printf(bio_err, | |
257 | "%s Can't read key from %s\n", prog, opt_arg()); | |
258 | goto opthelp; | |
0f113f3e | 259 | } |
7e1b7485 RS |
260 | while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) |
261 | buf[i] = '\0'; | |
262 | if (i <= 0) { | |
263 | BIO_printf(bio_err, "%s: zero length password\n", prog); | |
264 | goto opthelp; | |
0f113f3e MC |
265 | } |
266 | str = buf; | |
7e1b7485 RS |
267 | break; |
268 | case OPT_UPPER_K: | |
269 | hkey = opt_arg(); | |
270 | break; | |
271 | case OPT_UPPER_S: | |
272 | hsalt = opt_arg(); | |
273 | break; | |
274 | case OPT_IV: | |
275 | hiv = opt_arg(); | |
276 | break; | |
277 | case OPT_MD: | |
d0190e11 | 278 | digestname = opt_arg(); |
7e1b7485 | 279 | break; |
7e1b7485 | 280 | case OPT_CIPHER: |
50ca7e18 | 281 | ciphername = opt_unknown(); |
7e1b7485 | 282 | break; |
405988f2 | 283 | case OPT_ITER: |
d830526c | 284 | iter = opt_int_arg(); |
405988f2 E |
285 | pbkdf2 = 1; |
286 | break; | |
287 | case OPT_PBKDF2: | |
288 | pbkdf2 = 1; | |
289 | if (iter == 0) /* do not overwrite a chosen value */ | |
290 | iter = 10000; | |
291 | break; | |
7e1b7485 | 292 | case OPT_NONE: |
0f113f3e | 293 | cipher = NULL; |
7e1b7485 | 294 | break; |
3ee1eac2 RS |
295 | case OPT_R_CASES: |
296 | if (!opt_rand(o)) | |
297 | goto end; | |
298 | break; | |
6bd4e3f2 P |
299 | case OPT_PROV_CASES: |
300 | if (!opt_provider(o)) | |
301 | goto end; | |
302 | break; | |
0f113f3e | 303 | } |
0f113f3e | 304 | } |
021410ea RS |
305 | |
306 | /* No extra arguments. */ | |
d9f07357 | 307 | if (!opt_check_rest_arg(NULL)) |
c27363f5 | 308 | goto opthelp; |
3ad60309 DDO |
309 | if (!app_RAND_load()) |
310 | goto end; | |
d02b48c6 | 311 | |
50ca7e18 | 312 | /* Get the cipher name, either from progname (if set) or flag. */ |
d9f07357 DDO |
313 | if (!opt_cipher(ciphername, &cipher)) |
314 | goto opthelp; | |
7850cc83 E |
315 | if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) { |
316 | wrap = 1; | |
317 | streamable = 0; | |
318 | } | |
d0190e11 RS |
319 | if (digestname != NULL) { |
320 | if (!opt_md(digestname, &dgst)) | |
50ca7e18 RS |
321 | goto opthelp; |
322 | } | |
7e1b7485 | 323 | if (dgst == NULL) |
606a417f | 324 | dgst = (EVP_MD *)EVP_sha256(); |
0f113f3e | 325 | |
405988f2 E |
326 | if (iter == 0) |
327 | iter = 1; | |
328 | ||
7e1b7485 | 329 | /* It must be large enough for a base64 encoded line */ |
5f62e044 | 330 | if (base64 && bsize < 80) |
7e1b7485 RS |
331 | bsize = 80; |
332 | if (verbose) | |
333 | BIO_printf(bio_err, "bufsize=%d\n", bsize); | |
0f113f3e | 334 | |
59d21298 | 335 | #ifndef OPENSSL_NO_ZLIB |
12e96a23 TS |
336 | if (do_zlib) |
337 | base64 = 0; | |
802d2243 | 338 | #endif |
12e96a23 TS |
339 | if (do_brotli) |
340 | base64 = 0; | |
caf9317d TS |
341 | if (do_zstd) |
342 | base64 = 0; | |
12e96a23 TS |
343 | |
344 | if (base64) { | |
345 | if (enc) | |
346 | outformat = FORMAT_BASE64; | |
347 | else | |
348 | informat = FORMAT_BASE64; | |
349 | } | |
5f62e044 | 350 | |
68dc6824 RS |
351 | strbuf = app_malloc(SIZE, "strbuf"); |
352 | buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); | |
0f113f3e | 353 | |
7e1b7485 | 354 | if (infile == NULL) { |
f4f397a5 | 355 | if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */ |
7850cc83 E |
356 | BIO_printf(bio_err, "Unstreamable cipher mode\n"); |
357 | goto end; | |
358 | } | |
5f62e044 | 359 | in = dup_bio_in(informat); |
2234212c | 360 | } else { |
5f62e044 | 361 | in = bio_open_default(infile, 'r', informat); |
2234212c | 362 | } |
7e1b7485 RS |
363 | if (in == NULL) |
364 | goto end; | |
0f113f3e | 365 | |
2234212c | 366 | if (str == NULL && passarg != NULL) { |
7e1b7485 | 367 | if (!app_passwd(passarg, NULL, &pass, NULL)) { |
0f113f3e MC |
368 | BIO_printf(bio_err, "Error getting password\n"); |
369 | goto end; | |
370 | } | |
371 | str = pass; | |
372 | } | |
373 | ||
374 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { | |
923b1857 | 375 | if (1) { |
48feaceb | 376 | #ifndef OPENSSL_NO_UI_CONSOLE |
923b1857 RL |
377 | for (;;) { |
378 | char prompt[200]; | |
0f113f3e | 379 | |
eee95522 | 380 | BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", |
ed576acd | 381 | EVP_CIPHER_get0_name(cipher), |
0904e79a | 382 | (enc) ? "encryption" : "decryption"); |
923b1857 RL |
383 | strbuf[0] = '\0'; |
384 | i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); | |
385 | if (i == 0) { | |
386 | if (strbuf[0] == '\0') { | |
387 | ret = 1; | |
388 | goto end; | |
389 | } | |
390 | str = strbuf; | |
391 | break; | |
392 | } | |
393 | if (i < 0) { | |
394 | BIO_printf(bio_err, "bad password read\n"); | |
0f113f3e MC |
395 | goto end; |
396 | } | |
0f113f3e | 397 | } |
923b1857 RL |
398 | } else { |
399 | #endif | |
400 | BIO_printf(bio_err, "password required\n"); | |
401 | goto end; | |
0f113f3e MC |
402 | } |
403 | } | |
404 | ||
5f62e044 | 405 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
406 | if (out == NULL) |
407 | goto end; | |
0f113f3e | 408 | |
7a82f778 | 409 | if (debug) { |
0800318a TM |
410 | BIO_set_callback_ex(in, BIO_debug_callback_ex); |
411 | BIO_set_callback_ex(out, BIO_debug_callback_ex); | |
7a82f778 RL |
412 | BIO_set_callback_arg(in, (char *)bio_err); |
413 | BIO_set_callback_arg(out, (char *)bio_err); | |
414 | } | |
415 | ||
0f113f3e MC |
416 | rbio = in; |
417 | wbio = out; | |
fd699ac5 | 418 | |
12e96a23 | 419 | #ifndef OPENSSL_NO_COMP |
59d21298 | 420 | # ifndef OPENSSL_NO_ZLIB |
0f113f3e MC |
421 | if (do_zlib) { |
422 | if ((bzl = BIO_new(BIO_f_zlib())) == NULL) | |
423 | goto end; | |
7a82f778 | 424 | if (debug) { |
0800318a | 425 | BIO_set_callback_ex(bzl, BIO_debug_callback_ex); |
7a82f778 RL |
426 | BIO_set_callback_arg(bzl, (char *)bio_err); |
427 | } | |
0f113f3e MC |
428 | if (enc) |
429 | wbio = BIO_push(bzl, wbio); | |
430 | else | |
431 | rbio = BIO_push(bzl, rbio); | |
432 | } | |
12e96a23 TS |
433 | # endif |
434 | ||
435 | if (do_brotli) { | |
436 | if ((bbrot = BIO_new(BIO_f_brotli())) == NULL) | |
437 | goto end; | |
438 | if (debug) { | |
439 | BIO_set_callback_ex(bbrot, BIO_debug_callback_ex); | |
440 | BIO_set_callback_arg(bbrot, (char *)bio_err); | |
441 | } | |
442 | if (enc) | |
443 | wbio = BIO_push(bbrot, wbio); | |
444 | else | |
445 | rbio = BIO_push(bbrot, rbio); | |
446 | } | |
caf9317d TS |
447 | |
448 | if (do_zstd) { | |
449 | if ((bzstd = BIO_new(BIO_f_zstd())) == NULL) | |
450 | goto end; | |
451 | if (debug) { | |
452 | BIO_set_callback_ex(bzstd, BIO_debug_callback_ex); | |
453 | BIO_set_callback_arg(bzstd, (char *)bio_err); | |
454 | } | |
455 | if (enc) | |
456 | wbio = BIO_push(bzstd, wbio); | |
457 | else | |
458 | rbio = BIO_push(bzstd, rbio); | |
459 | } | |
8931b30d DSH |
460 | #endif |
461 | ||
5f62e044 | 462 | if (base64) { |
0f113f3e MC |
463 | if ((b64 = BIO_new(BIO_f_base64())) == NULL) |
464 | goto end; | |
465 | if (debug) { | |
0800318a | 466 | BIO_set_callback_ex(b64, BIO_debug_callback_ex); |
0f113f3e MC |
467 | BIO_set_callback_arg(b64, (char *)bio_err); |
468 | } | |
469 | if (olb64) | |
470 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
471 | if (enc) | |
472 | wbio = BIO_push(b64, wbio); | |
473 | else | |
474 | rbio = BIO_push(b64, rbio); | |
475 | } | |
476 | ||
477 | if (cipher != NULL) { | |
c4c8791e | 478 | if (str != NULL) { /* a passphrase is available */ |
0f113f3e | 479 | /* |
c4c8791e E |
480 | * Salt handling: if encrypting generate a salt if not supplied, |
481 | * and write to output BIO. If decrypting use salt from input BIO | |
482 | * if not given with args | |
0f113f3e MC |
483 | */ |
484 | unsigned char *sptr; | |
f6c460e8 F |
485 | size_t str_len = strlen(str); |
486 | ||
2234212c | 487 | if (nosalt) { |
0f113f3e | 488 | sptr = NULL; |
2234212c | 489 | } else { |
c4c8791e E |
490 | if (hsalt != NULL && !set_hex(hsalt, salt, sizeof(salt))) { |
491 | BIO_printf(bio_err, "invalid hex salt value\n"); | |
492 | goto end; | |
493 | } | |
494 | if (enc) { /* encryption */ | |
495 | if (hsalt == NULL) { | |
496 | if (RAND_bytes(salt, sizeof(salt)) <= 0) { | |
497 | BIO_printf(bio_err, "RAND_bytes failed\n"); | |
498 | goto end; | |
499 | } | |
500 | /* | |
501 | * If -P option then don't bother writing. | |
502 | * If salt is given, shouldn't either ? | |
503 | */ | |
504 | if ((printkey != 2) | |
505 | && (BIO_write(wbio, magic, | |
506 | sizeof(magic) - 1) != sizeof(magic) - 1 | |
507 | || BIO_write(wbio, | |
508 | (char *)salt, | |
509 | sizeof(salt)) != sizeof(salt))) { | |
510 | BIO_printf(bio_err, "error writing output file\n"); | |
0f113f3e MC |
511 | goto end; |
512 | } | |
2234212c | 513 | } |
c4c8791e E |
514 | } else { /* decryption */ |
515 | if (hsalt == NULL) { | |
516 | if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)) { | |
517 | BIO_printf(bio_err, "error reading input file\n"); | |
518 | goto end; | |
519 | } | |
520 | if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */ | |
521 | if (BIO_read(rbio, salt, | |
522 | sizeof(salt)) != sizeof(salt)) { | |
523 | BIO_printf(bio_err, "error reading input file\n"); | |
524 | goto end; | |
525 | } | |
526 | } else { /* file is NOT salted, NO salt available */ | |
527 | BIO_printf(bio_err, "bad magic number\n"); | |
528 | goto end; | |
529 | } | |
0f113f3e | 530 | } |
0f113f3e | 531 | } |
0f113f3e MC |
532 | sptr = salt; |
533 | } | |
534 | ||
405988f2 E |
535 | if (pbkdf2 == 1) { |
536 | /* | |
537 | * derive key and default iv | |
538 | * concatenated into a temporary buffer | |
539 | */ | |
540 | unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; | |
ed576acd TM |
541 | int iklen = EVP_CIPHER_get_key_length(cipher); |
542 | int ivlen = EVP_CIPHER_get_iv_length(cipher); | |
405988f2 E |
543 | /* not needed if HASH_UPDATE() is fixed : */ |
544 | int islen = (sptr != NULL ? sizeof(salt) : 0); | |
545 | if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, | |
546 | iter, dgst, iklen+ivlen, tmpkeyiv)) { | |
547 | BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); | |
548 | goto end; | |
549 | } | |
550 | /* split and move data back to global buffer */ | |
551 | memcpy(key, tmpkeyiv, iklen); | |
552 | memcpy(iv, tmpkeyiv+iklen, ivlen); | |
553 | } else { | |
554 | BIO_printf(bio_err, "*** WARNING : " | |
555 | "deprecated key derivation used.\n" | |
556 | "Using -iter or -pbkdf2 would be better.\n"); | |
557 | if (!EVP_BytesToKey(cipher, dgst, sptr, | |
558 | (unsigned char *)str, str_len, | |
559 | 1, key, iv)) { | |
560 | BIO_printf(bio_err, "EVP_BytesToKey failed\n"); | |
561 | goto end; | |
562 | } | |
0f113f3e MC |
563 | } |
564 | /* | |
565 | * zero the complete buffer or the string passed from the command | |
e3713c36 | 566 | * line. |
0f113f3e MC |
567 | */ |
568 | if (str == strbuf) | |
569 | OPENSSL_cleanse(str, SIZE); | |
570 | else | |
f6c460e8 | 571 | OPENSSL_cleanse(str, str_len); |
0f113f3e | 572 | } |
8920a7cd | 573 | if (hiv != NULL) { |
ed576acd | 574 | int siz = EVP_CIPHER_get_iv_length(cipher); |
8920a7cd | 575 | if (siz == 0) { |
9c119bc6 | 576 | BIO_printf(bio_err, "warning: iv not used by this cipher\n"); |
d5961b22 | 577 | } else if (!set_hex(hiv, iv, siz)) { |
8920a7cd RL |
578 | BIO_printf(bio_err, "invalid hex iv value\n"); |
579 | goto end; | |
580 | } | |
0f113f3e MC |
581 | } |
582 | if ((hiv == NULL) && (str == NULL) | |
7850cc83 E |
583 | && EVP_CIPHER_get_iv_length(cipher) != 0 |
584 | && wrap == 0) { | |
0f113f3e | 585 | /* |
405988f2 E |
586 | * No IV was explicitly set and no IV was generated. |
587 | * Hence the IV is undefined, making correct decryption impossible. | |
0f113f3e MC |
588 | */ |
589 | BIO_printf(bio_err, "iv undefined\n"); | |
590 | goto end; | |
591 | } | |
1f83edda | 592 | if (hkey != NULL) { |
ed576acd | 593 | if (!set_hex(hkey, key, EVP_CIPHER_get_key_length(cipher))) { |
1f83edda E |
594 | BIO_printf(bio_err, "invalid hex key value\n"); |
595 | goto end; | |
596 | } | |
597 | /* wiping secret data as we no longer need it */ | |
6d382c74 | 598 | cleanse(hkey); |
0f113f3e MC |
599 | } |
600 | ||
601 | if ((benc = BIO_new(BIO_f_cipher())) == NULL) | |
602 | goto end; | |
603 | ||
604 | /* | |
605 | * Since we may be changing parameters work on the encryption context | |
606 | * rather than calling BIO_set_cipher(). | |
607 | */ | |
608 | ||
609 | BIO_get_cipher_ctx(benc, &ctx); | |
610 | ||
7850cc83 E |
611 | if (wrap == 1) |
612 | EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW); | |
613 | ||
1d864f0f | 614 | if (!EVP_CipherInit_ex(ctx, cipher, e, NULL, NULL, enc)) { |
0f113f3e | 615 | BIO_printf(bio_err, "Error setting cipher %s\n", |
ed576acd | 616 | EVP_CIPHER_get0_name(cipher)); |
0f113f3e MC |
617 | ERR_print_errors(bio_err); |
618 | goto end; | |
619 | } | |
620 | ||
621 | if (nopad) | |
622 | EVP_CIPHER_CTX_set_padding(ctx, 0); | |
623 | ||
7850cc83 E |
624 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, |
625 | (hiv == NULL && wrap == 1 ? NULL : iv), enc)) { | |
0f113f3e | 626 | BIO_printf(bio_err, "Error setting cipher %s\n", |
ed576acd | 627 | EVP_CIPHER_get0_name(cipher)); |
0f113f3e MC |
628 | ERR_print_errors(bio_err); |
629 | goto end; | |
630 | } | |
631 | ||
632 | if (debug) { | |
0800318a | 633 | BIO_set_callback_ex(benc, BIO_debug_callback_ex); |
0f113f3e MC |
634 | BIO_set_callback_arg(benc, (char *)bio_err); |
635 | } | |
636 | ||
637 | if (printkey) { | |
638 | if (!nosalt) { | |
639 | printf("salt="); | |
640 | for (i = 0; i < (int)sizeof(salt); i++) | |
641 | printf("%02X", salt[i]); | |
642 | printf("\n"); | |
643 | } | |
ed576acd | 644 | if (EVP_CIPHER_get_key_length(cipher) > 0) { |
0f113f3e | 645 | printf("key="); |
ed576acd | 646 | for (i = 0; i < EVP_CIPHER_get_key_length(cipher); i++) |
0f113f3e MC |
647 | printf("%02X", key[i]); |
648 | printf("\n"); | |
649 | } | |
ed576acd | 650 | if (EVP_CIPHER_get_iv_length(cipher) > 0) { |
0f113f3e | 651 | printf("iv ="); |
ed576acd | 652 | for (i = 0; i < EVP_CIPHER_get_iv_length(cipher); i++) |
0f113f3e MC |
653 | printf("%02X", iv[i]); |
654 | printf("\n"); | |
655 | } | |
656 | if (printkey == 2) { | |
657 | ret = 0; | |
658 | goto end; | |
659 | } | |
660 | } | |
661 | } | |
662 | ||
663 | /* Only encrypt/decrypt as we write the file */ | |
664 | if (benc != NULL) | |
665 | wbio = BIO_push(benc, wbio); | |
666 | ||
8ed7bbb4 | 667 | while (BIO_pending(rbio) || !BIO_eof(rbio)) { |
0f113f3e MC |
668 | inl = BIO_read(rbio, (char *)buff, bsize); |
669 | if (inl <= 0) | |
670 | break; | |
7850cc83 E |
671 | if (!streamable && !BIO_eof(rbio)) { /* do not output data */ |
672 | BIO_printf(bio_err, "Unstreamable cipher mode\n"); | |
673 | goto end; | |
674 | } | |
0f113f3e MC |
675 | if (BIO_write(wbio, (char *)buff, inl) != inl) { |
676 | BIO_printf(bio_err, "error writing output file\n"); | |
677 | goto end; | |
678 | } | |
7850cc83 E |
679 | if (!streamable) |
680 | break; | |
0f113f3e MC |
681 | } |
682 | if (!BIO_flush(wbio)) { | |
683 | BIO_printf(bio_err, "bad decrypt\n"); | |
684 | goto end; | |
685 | } | |
686 | ||
687 | ret = 0; | |
688 | if (verbose) { | |
12997aa9 RS |
689 | BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); |
690 | BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); | |
0f113f3e MC |
691 | } |
692 | end: | |
693 | ERR_print_errors(bio_err); | |
b548a1f1 RS |
694 | OPENSSL_free(strbuf); |
695 | OPENSSL_free(buff); | |
ca3a82c3 RS |
696 | BIO_free(in); |
697 | BIO_free_all(out); | |
698 | BIO_free(benc); | |
699 | BIO_free(b64); | |
606a417f RS |
700 | EVP_MD_free(dgst); |
701 | EVP_CIPHER_free(cipher); | |
59d21298 | 702 | #ifndef OPENSSL_NO_ZLIB |
ca3a82c3 | 703 | BIO_free(bzl); |
8931b30d | 704 | #endif |
12e96a23 | 705 | BIO_free(bbrot); |
caf9317d | 706 | BIO_free(bzstd); |
dd1abd44 | 707 | release_engine(e); |
b548a1f1 | 708 | OPENSSL_free(pass); |
eee95522 | 709 | return ret; |
7e1b7485 RS |
710 | } |
711 | ||
2b305ab0 | 712 | static void show_ciphers(const OBJ_NAME *name, void *arg) |
7e1b7485 | 713 | { |
2b305ab0 | 714 | struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; |
777f1708 | 715 | const EVP_CIPHER *cipher; |
7e1b7485 RS |
716 | |
717 | if (!islower((unsigned char)*name->name)) | |
718 | return; | |
719 | ||
777f1708 P |
720 | /* Filter out ciphers that we cannot use */ |
721 | cipher = EVP_get_cipherbyname(name->name); | |
f7d2427a P |
722 | if (cipher == NULL |
723 | || (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 | |
724 | || EVP_CIPHER_get_mode(cipher) == EVP_CIPH_XTS_MODE) | |
777f1708 P |
725 | return; |
726 | ||
2b305ab0 P |
727 | BIO_printf(dec->bio, "-%-25s", name->name); |
728 | if (++dec->n == 3) { | |
729 | BIO_printf(dec->bio, "\n"); | |
730 | dec->n = 0; | |
7e1b7485 | 731 | } else |
2b305ab0 | 732 | BIO_printf(dec->bio, " "); |
0f113f3e | 733 | } |
d02b48c6 | 734 | |
d5961b22 | 735 | static int set_hex(const char *in, unsigned char *out, int size) |
0f113f3e MC |
736 | { |
737 | int i, n; | |
738 | unsigned char j; | |
739 | ||
d5961b22 | 740 | i = size * 2; |
0f113f3e | 741 | n = strlen(in); |
d5961b22 E |
742 | if (n > i) { |
743 | BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); | |
744 | n = i; /* ignore exceeding part */ | |
745 | } else if (n < i) { | |
746 | BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); | |
0f113f3e | 747 | } |
d5961b22 | 748 | |
0f113f3e MC |
749 | memset(out, 0, size); |
750 | for (i = 0; i < n; i++) { | |
d5961b22 | 751 | j = (unsigned char)*in++; |
2fa45e6e | 752 | if (!isxdigit(j)) { |
0f113f3e | 753 | BIO_printf(bio_err, "non-hex digit\n"); |
eee95522 | 754 | return 0; |
0f113f3e | 755 | } |
14f051a0 | 756 | j = (unsigned char)OPENSSL_hexchar2int(j); |
0f113f3e MC |
757 | if (i & 1) |
758 | out[i / 2] |= j; | |
759 | else | |
760 | out[i / 2] = (j << 4); | |
761 | } | |
eee95522 | 762 | return 1; |
0f113f3e | 763 | } |