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Commit | Line | Data |
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846e33c7 | 1 | /* |
da1c088f | 2 | * Copyright 1995-2023 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 | |
dc43f080 P |
33 | #define PBKDF2_ITER_DEFAULT 10000 |
34 | #define STR(a) XSTR(a) | |
35 | #define XSTR(a) #a | |
36 | ||
d5961b22 | 37 | static int set_hex(const char *in, unsigned char *out, int size); |
7e1b7485 RS |
38 | static void show_ciphers(const OBJ_NAME *name, void *bio_); |
39 | ||
2b305ab0 P |
40 | struct doall_enc_ciphers { |
41 | BIO *bio; | |
42 | int n; | |
43 | }; | |
44 | ||
7e1b7485 | 45 | typedef enum OPTION_choice { |
b0f96018 | 46 | OPT_COMMON, |
3b5bea36 | 47 | OPT_LIST, |
7e1b7485 RS |
48 | OPT_E, OPT_IN, OPT_OUT, OPT_PASS, OPT_ENGINE, OPT_D, OPT_P, OPT_V, |
49 | OPT_NOPAD, OPT_SALT, OPT_NOSALT, OPT_DEBUG, OPT_UPPER_P, OPT_UPPER_A, | |
50 | OPT_A, OPT_Z, OPT_BUFSIZE, OPT_K, OPT_KFILE, OPT_UPPER_K, OPT_NONE, | |
405988f2 | 51 | OPT_UPPER_S, OPT_IV, OPT_MD, OPT_ITER, OPT_PBKDF2, OPT_CIPHER, |
e3994583 | 52 | OPT_SALTLEN, OPT_R_ENUM, OPT_PROV_ENUM |
7e1b7485 RS |
53 | } OPTION_CHOICE; |
54 | ||
44c83ebd | 55 | const OPTIONS enc_options[] = { |
5388f986 | 56 | OPT_SECTION("General"), |
7e1b7485 | 57 | {"help", OPT_HELP, '-', "Display this summary"}, |
f62d67b6 | 58 | {"list", OPT_LIST, '-', "List ciphers"}, |
936c2b9e | 59 | #ifndef OPENSSL_NO_DEPRECATED_3_0 |
f62d67b6 | 60 | {"ciphers", OPT_LIST, '-', "Alias for -list"}, |
61 | #endif | |
7e1b7485 RS |
62 | {"e", OPT_E, '-', "Encrypt"}, |
63 | {"d", OPT_D, '-', "Decrypt"}, | |
64 | {"p", OPT_P, '-', "Print the iv/key"}, | |
65 | {"P", OPT_UPPER_P, '-', "Print the iv/key and exit"}, | |
5388f986 RS |
66 | #ifndef OPENSSL_NO_ENGINE |
67 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
68 | #endif | |
69 | ||
70 | OPT_SECTION("Input"), | |
71 | {"in", OPT_IN, '<', "Input file"}, | |
72 | {"k", OPT_K, 's', "Passphrase"}, | |
73 | {"kfile", OPT_KFILE, '<', "Read passphrase from file"}, | |
74 | ||
75 | OPT_SECTION("Output"), | |
76 | {"out", OPT_OUT, '>', "Output file"}, | |
77 | {"pass", OPT_PASS, 's', "Passphrase source"}, | |
9a13bb38 | 78 | {"v", OPT_V, '-', "Verbose output"}, |
9a13bb38 RS |
79 | {"a", OPT_A, '-', "Base64 encode/decode, depending on encryption flag"}, |
80 | {"base64", OPT_A, '-', "Same as option -a"}, | |
81 | {"A", OPT_UPPER_A, '-', | |
82 | "Used with -[base64|a] to specify base64 buffer as a single line"}, | |
5388f986 RS |
83 | |
84 | OPT_SECTION("Encryption"), | |
85 | {"nopad", OPT_NOPAD, '-', "Disable standard block padding"}, | |
86 | {"salt", OPT_SALT, '-', "Use salt in the KDF (default)"}, | |
87 | {"nosalt", OPT_NOSALT, '-', "Do not use salt in the KDF"}, | |
88 | {"debug", OPT_DEBUG, '-', "Print debug info"}, | |
89 | ||
7e1b7485 | 90 | {"bufsize", OPT_BUFSIZE, 's', "Buffer size"}, |
b256f717 | 91 | {"K", OPT_UPPER_K, 's', "Raw key, in hex"}, |
7e1b7485 RS |
92 | {"S", OPT_UPPER_S, 's', "Salt, in hex"}, |
93 | {"iv", OPT_IV, 's', "IV in hex"}, | |
5507b961 | 94 | {"md", OPT_MD, 's', "Use specified digest to create a key from the passphrase"}, |
dc43f080 P |
95 | {"iter", OPT_ITER, 'p', |
96 | "Specify the iteration count and force the use of PBKDF2"}, | |
97 | {OPT_MORE_STR, 0, 0, "Default: " STR(PBKDF2_ITER_DEFAULT)}, | |
98 | {"pbkdf2", OPT_PBKDF2, '-', | |
99 | "Use password-based key derivation function 2 (PBKDF2)"}, | |
100 | {OPT_MORE_STR, 0, 0, | |
101 | "Use -iter to change the iteration count from " STR(PBKDF2_ITER_DEFAULT)}, | |
7e1b7485 | 102 | {"none", OPT_NONE, '-', "Don't encrypt"}, |
e3994583 | 103 | {"saltlen", OPT_SALTLEN, 'p', "Specify the PBKDF2 salt length (in bytes)"}, |
104 | {OPT_MORE_STR, 0, 0, "Default: 16"}, | |
59d21298 | 105 | #ifndef OPENSSL_NO_ZLIB |
6635ea53 | 106 | {"z", OPT_Z, '-', "Compress or decompress encrypted data using zlib"}, |
9c3bcfa0 | 107 | #endif |
5388f986 RS |
108 | {"", OPT_CIPHER, '-', "Any supported cipher"}, |
109 | ||
110 | OPT_R_OPTIONS, | |
6bd4e3f2 | 111 | OPT_PROV_OPTIONS, |
7e1b7485 RS |
112 | {NULL} |
113 | }; | |
114 | ||
115 | int enc_main(int argc, char **argv) | |
0f113f3e | 116 | { |
7e1b7485 | 117 | static char buf[128]; |
0f113f3e | 118 | static const char magic[] = "Salted__"; |
dd1abd44 | 119 | ENGINE *e = NULL; |
7e1b7485 RS |
120 | BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio = |
121 | NULL, *wbio = NULL; | |
122 | EVP_CIPHER_CTX *ctx = NULL; | |
606a417f RS |
123 | EVP_CIPHER *cipher = NULL; |
124 | EVP_MD *dgst = NULL; | |
d0190e11 | 125 | const char *digestname = NULL; |
333b070e | 126 | char *hkey = NULL, *hiv = NULL, *hsalt = NULL, *p; |
50ca7e18 | 127 | char *infile = NULL, *outfile = NULL, *prog; |
7e1b7485 | 128 | char *str = NULL, *passarg = NULL, *pass = NULL, *strbuf = NULL; |
50ca7e18 | 129 | const char *ciphername = NULL; |
cbe29648 | 130 | char mbuf[sizeof(magic) - 1]; |
7e1b7485 RS |
131 | OPTION_CHOICE o; |
132 | int bsize = BSIZE, verbose = 0, debug = 0, olb64 = 0, nosalt = 0; | |
5f62e044 RL |
133 | int enc = 1, printkey = 0, i, k; |
134 | int base64 = 0, informat = FORMAT_BINARY, outformat = FORMAT_BINARY; | |
700b4a4a | 135 | int ret = 1, inl, nopad = 0; |
0f113f3e | 136 | unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH]; |
e3994583 | 137 | unsigned char *buff = NULL, salt[EVP_MAX_IV_LENGTH]; |
138 | int saltlen = 0; | |
405988f2 E |
139 | int pbkdf2 = 0; |
140 | int iter = 0; | |
bd4850df | 141 | long n; |
7850cc83 E |
142 | int streamable = 1; |
143 | int wrap = 0; | |
2b305ab0 | 144 | struct doall_enc_ciphers dec; |
59d21298 | 145 | #ifndef OPENSSL_NO_ZLIB |
0f113f3e MC |
146 | int do_zlib = 0; |
147 | BIO *bzl = NULL; | |
8931b30d | 148 | #endif |
12e96a23 TS |
149 | int do_brotli = 0; |
150 | BIO *bbrot = NULL; | |
caf9317d TS |
151 | int do_zstd = 0; |
152 | BIO *bzstd = NULL; | |
3647bee2 | 153 | |
33720392 | 154 | /* first check the command name */ |
50ca7e18 | 155 | if (strcmp(argv[0], "base64") == 0) |
5f62e044 | 156 | base64 = 1; |
59d21298 | 157 | #ifndef OPENSSL_NO_ZLIB |
50ca7e18 | 158 | else if (strcmp(argv[0], "zlib") == 0) |
0f113f3e | 159 | do_zlib = 1; |
12e96a23 TS |
160 | #endif |
161 | #ifndef OPENSSL_NO_BROTLI | |
162 | else if (strcmp(argv[0], "brotli") == 0) | |
163 | do_brotli = 1; | |
caf9317d TS |
164 | #endif |
165 | #ifndef OPENSSL_NO_ZSTD | |
166 | else if (strcmp(argv[0], "zstd") == 0) | |
167 | do_zstd = 1; | |
8931b30d | 168 | #endif |
50ca7e18 RS |
169 | else if (strcmp(argv[0], "enc") != 0) |
170 | ciphername = argv[0]; | |
0f113f3e | 171 | |
2c272447 | 172 | opt_set_unknown_name("cipher"); |
7e1b7485 RS |
173 | prog = opt_init(argc, argv, enc_options); |
174 | while ((o = opt_next()) != OPT_EOF) { | |
175 | switch (o) { | |
176 | case OPT_EOF: | |
177 | case OPT_ERR: | |
178 | opthelp: | |
179 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
180 | goto end; | |
181 | case OPT_HELP: | |
182 | opt_help(enc_options); | |
183 | ret = 0; | |
3b5bea36 RS |
184 | goto end; |
185 | case OPT_LIST: | |
341de5f1 | 186 | BIO_printf(bio_out, "Supported ciphers:\n"); |
2b305ab0 P |
187 | dec.bio = bio_out; |
188 | dec.n = 0; | |
7e1b7485 | 189 | OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH, |
2b305ab0 | 190 | show_ciphers, &dec); |
341de5f1 RL |
191 | BIO_printf(bio_out, "\n"); |
192 | ret = 0; | |
7e1b7485 RS |
193 | goto end; |
194 | case OPT_E: | |
0f113f3e | 195 | enc = 1; |
7e1b7485 RS |
196 | break; |
197 | case OPT_IN: | |
198 | infile = opt_arg(); | |
199 | break; | |
200 | case OPT_OUT: | |
201 | outfile = opt_arg(); | |
202 | break; | |
203 | case OPT_PASS: | |
204 | passarg = opt_arg(); | |
205 | break; | |
206 | case OPT_ENGINE: | |
dd1abd44 | 207 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
208 | break; |
209 | case OPT_D: | |
0f113f3e | 210 | enc = 0; |
7e1b7485 RS |
211 | break; |
212 | case OPT_P: | |
0f113f3e | 213 | printkey = 1; |
7e1b7485 RS |
214 | break; |
215 | case OPT_V: | |
0f113f3e | 216 | verbose = 1; |
7e1b7485 RS |
217 | break; |
218 | case OPT_NOPAD: | |
0f113f3e | 219 | nopad = 1; |
7e1b7485 RS |
220 | break; |
221 | case OPT_SALT: | |
0f113f3e | 222 | nosalt = 0; |
7e1b7485 RS |
223 | break; |
224 | case OPT_NOSALT: | |
0f113f3e | 225 | nosalt = 1; |
7e1b7485 RS |
226 | break; |
227 | case OPT_DEBUG: | |
0f113f3e | 228 | debug = 1; |
7e1b7485 RS |
229 | break; |
230 | case OPT_UPPER_P: | |
0f113f3e | 231 | printkey = 2; |
7e1b7485 RS |
232 | break; |
233 | case OPT_UPPER_A: | |
0f113f3e | 234 | olb64 = 1; |
7e1b7485 RS |
235 | break; |
236 | case OPT_A: | |
5f62e044 | 237 | base64 = 1; |
7e1b7485 RS |
238 | break; |
239 | case OPT_Z: | |
59d21298 | 240 | #ifndef OPENSSL_NO_ZLIB |
0f113f3e | 241 | do_zlib = 1; |
8931b30d | 242 | #endif |
7e1b7485 RS |
243 | break; |
244 | case OPT_BUFSIZE: | |
245 | p = opt_arg(); | |
246 | i = (int)strlen(p) - 1; | |
247 | k = i >= 1 && p[i] == 'k'; | |
248 | if (k) | |
249 | p[i] = '\0'; | |
bd4850df RS |
250 | if (!opt_long(opt_arg(), &n) |
251 | || n < 0 || (k && n >= LONG_MAX / 1024)) | |
7e1b7485 RS |
252 | goto opthelp; |
253 | if (k) | |
254 | n *= 1024; | |
255 | bsize = (int)n; | |
256 | break; | |
257 | case OPT_K: | |
258 | str = opt_arg(); | |
259 | break; | |
260 | case OPT_KFILE: | |
bdd58d98 | 261 | in = bio_open_default(opt_arg(), 'r', FORMAT_TEXT); |
7e1b7485 RS |
262 | if (in == NULL) |
263 | goto opthelp; | |
cbe29648 | 264 | i = BIO_gets(in, buf, sizeof(buf)); |
7e1b7485 RS |
265 | BIO_free(in); |
266 | in = NULL; | |
267 | if (i <= 0) { | |
268 | BIO_printf(bio_err, | |
269 | "%s Can't read key from %s\n", prog, opt_arg()); | |
270 | goto opthelp; | |
0f113f3e | 271 | } |
7e1b7485 RS |
272 | while (--i > 0 && (buf[i] == '\r' || buf[i] == '\n')) |
273 | buf[i] = '\0'; | |
274 | if (i <= 0) { | |
275 | BIO_printf(bio_err, "%s: zero length password\n", prog); | |
276 | goto opthelp; | |
0f113f3e MC |
277 | } |
278 | str = buf; | |
7e1b7485 RS |
279 | break; |
280 | case OPT_UPPER_K: | |
281 | hkey = opt_arg(); | |
282 | break; | |
283 | case OPT_UPPER_S: | |
284 | hsalt = opt_arg(); | |
285 | break; | |
286 | case OPT_IV: | |
287 | hiv = opt_arg(); | |
288 | break; | |
289 | case OPT_MD: | |
d0190e11 | 290 | digestname = opt_arg(); |
7e1b7485 | 291 | break; |
7e1b7485 | 292 | case OPT_CIPHER: |
50ca7e18 | 293 | ciphername = opt_unknown(); |
7e1b7485 | 294 | break; |
405988f2 | 295 | case OPT_ITER: |
d830526c | 296 | iter = opt_int_arg(); |
405988f2 E |
297 | pbkdf2 = 1; |
298 | break; | |
e3994583 | 299 | case OPT_SALTLEN: |
300 | if (!opt_int(opt_arg(), &saltlen)) | |
301 | goto opthelp; | |
302 | if (saltlen > (int)sizeof(salt)) | |
303 | saltlen = (int)sizeof(salt); | |
304 | break; | |
405988f2 E |
305 | case OPT_PBKDF2: |
306 | pbkdf2 = 1; | |
307 | if (iter == 0) /* do not overwrite a chosen value */ | |
dc43f080 | 308 | iter = PBKDF2_ITER_DEFAULT; |
405988f2 | 309 | break; |
7e1b7485 | 310 | case OPT_NONE: |
0f113f3e | 311 | cipher = NULL; |
7e1b7485 | 312 | break; |
3ee1eac2 RS |
313 | case OPT_R_CASES: |
314 | if (!opt_rand(o)) | |
315 | goto end; | |
316 | break; | |
6bd4e3f2 P |
317 | case OPT_PROV_CASES: |
318 | if (!opt_provider(o)) | |
319 | goto end; | |
320 | break; | |
0f113f3e | 321 | } |
0f113f3e | 322 | } |
021410ea RS |
323 | |
324 | /* No extra arguments. */ | |
d9f07357 | 325 | if (!opt_check_rest_arg(NULL)) |
c27363f5 | 326 | goto opthelp; |
3ad60309 DDO |
327 | if (!app_RAND_load()) |
328 | goto end; | |
e3994583 | 329 | if (saltlen == 0 || pbkdf2 == 0) |
330 | saltlen = PKCS5_SALT_LEN; | |
d02b48c6 | 331 | |
50ca7e18 | 332 | /* Get the cipher name, either from progname (if set) or flag. */ |
d9f07357 DDO |
333 | if (!opt_cipher(ciphername, &cipher)) |
334 | goto opthelp; | |
7850cc83 E |
335 | if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_WRAP_MODE)) { |
336 | wrap = 1; | |
337 | streamable = 0; | |
338 | } | |
d0190e11 RS |
339 | if (digestname != NULL) { |
340 | if (!opt_md(digestname, &dgst)) | |
50ca7e18 RS |
341 | goto opthelp; |
342 | } | |
7e1b7485 | 343 | if (dgst == NULL) |
606a417f | 344 | dgst = (EVP_MD *)EVP_sha256(); |
0f113f3e | 345 | |
405988f2 E |
346 | if (iter == 0) |
347 | iter = 1; | |
348 | ||
7e1b7485 | 349 | /* It must be large enough for a base64 encoded line */ |
5f62e044 | 350 | if (base64 && bsize < 80) |
7e1b7485 RS |
351 | bsize = 80; |
352 | if (verbose) | |
353 | BIO_printf(bio_err, "bufsize=%d\n", bsize); | |
0f113f3e | 354 | |
59d21298 | 355 | #ifndef OPENSSL_NO_ZLIB |
12e96a23 TS |
356 | if (do_zlib) |
357 | base64 = 0; | |
802d2243 | 358 | #endif |
12e96a23 TS |
359 | if (do_brotli) |
360 | base64 = 0; | |
caf9317d TS |
361 | if (do_zstd) |
362 | base64 = 0; | |
12e96a23 TS |
363 | |
364 | if (base64) { | |
365 | if (enc) | |
366 | outformat = FORMAT_BASE64; | |
367 | else | |
368 | informat = FORMAT_BASE64; | |
369 | } | |
5f62e044 | 370 | |
68dc6824 RS |
371 | strbuf = app_malloc(SIZE, "strbuf"); |
372 | buff = app_malloc(EVP_ENCODE_LENGTH(bsize), "evp buffer"); | |
0f113f3e | 373 | |
7e1b7485 | 374 | if (infile == NULL) { |
f4f397a5 | 375 | if (!streamable && printkey != 2) { /* if just print key and exit, it's ok */ |
7850cc83 E |
376 | BIO_printf(bio_err, "Unstreamable cipher mode\n"); |
377 | goto end; | |
378 | } | |
5f62e044 | 379 | in = dup_bio_in(informat); |
2234212c | 380 | } else { |
5f62e044 | 381 | in = bio_open_default(infile, 'r', informat); |
2234212c | 382 | } |
7e1b7485 RS |
383 | if (in == NULL) |
384 | goto end; | |
0f113f3e | 385 | |
2234212c | 386 | if (str == NULL && passarg != NULL) { |
7e1b7485 | 387 | if (!app_passwd(passarg, NULL, &pass, NULL)) { |
0f113f3e MC |
388 | BIO_printf(bio_err, "Error getting password\n"); |
389 | goto end; | |
390 | } | |
391 | str = pass; | |
392 | } | |
393 | ||
394 | if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) { | |
923b1857 | 395 | if (1) { |
48feaceb | 396 | #ifndef OPENSSL_NO_UI_CONSOLE |
923b1857 RL |
397 | for (;;) { |
398 | char prompt[200]; | |
0f113f3e | 399 | |
eee95522 | 400 | BIO_snprintf(prompt, sizeof(prompt), "enter %s %s password:", |
ed576acd | 401 | EVP_CIPHER_get0_name(cipher), |
0904e79a | 402 | (enc) ? "encryption" : "decryption"); |
923b1857 RL |
403 | strbuf[0] = '\0'; |
404 | i = EVP_read_pw_string((char *)strbuf, SIZE, prompt, enc); | |
405 | if (i == 0) { | |
406 | if (strbuf[0] == '\0') { | |
407 | ret = 1; | |
408 | goto end; | |
409 | } | |
410 | str = strbuf; | |
411 | break; | |
412 | } | |
413 | if (i < 0) { | |
414 | BIO_printf(bio_err, "bad password read\n"); | |
0f113f3e MC |
415 | goto end; |
416 | } | |
0f113f3e | 417 | } |
923b1857 RL |
418 | } else { |
419 | #endif | |
420 | BIO_printf(bio_err, "password required\n"); | |
421 | goto end; | |
0f113f3e MC |
422 | } |
423 | } | |
424 | ||
5f62e044 | 425 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
426 | if (out == NULL) |
427 | goto end; | |
0f113f3e | 428 | |
7a82f778 | 429 | if (debug) { |
0800318a TM |
430 | BIO_set_callback_ex(in, BIO_debug_callback_ex); |
431 | BIO_set_callback_ex(out, BIO_debug_callback_ex); | |
7a82f778 RL |
432 | BIO_set_callback_arg(in, (char *)bio_err); |
433 | BIO_set_callback_arg(out, (char *)bio_err); | |
434 | } | |
435 | ||
0f113f3e MC |
436 | rbio = in; |
437 | wbio = out; | |
fd699ac5 | 438 | |
12e96a23 | 439 | #ifndef OPENSSL_NO_COMP |
59d21298 | 440 | # ifndef OPENSSL_NO_ZLIB |
0f113f3e MC |
441 | if (do_zlib) { |
442 | if ((bzl = BIO_new(BIO_f_zlib())) == NULL) | |
443 | goto end; | |
7a82f778 | 444 | if (debug) { |
0800318a | 445 | BIO_set_callback_ex(bzl, BIO_debug_callback_ex); |
7a82f778 RL |
446 | BIO_set_callback_arg(bzl, (char *)bio_err); |
447 | } | |
0f113f3e MC |
448 | if (enc) |
449 | wbio = BIO_push(bzl, wbio); | |
450 | else | |
451 | rbio = BIO_push(bzl, rbio); | |
452 | } | |
12e96a23 TS |
453 | # endif |
454 | ||
455 | if (do_brotli) { | |
456 | if ((bbrot = BIO_new(BIO_f_brotli())) == NULL) | |
457 | goto end; | |
458 | if (debug) { | |
459 | BIO_set_callback_ex(bbrot, BIO_debug_callback_ex); | |
460 | BIO_set_callback_arg(bbrot, (char *)bio_err); | |
461 | } | |
462 | if (enc) | |
463 | wbio = BIO_push(bbrot, wbio); | |
464 | else | |
465 | rbio = BIO_push(bbrot, rbio); | |
466 | } | |
caf9317d TS |
467 | |
468 | if (do_zstd) { | |
469 | if ((bzstd = BIO_new(BIO_f_zstd())) == NULL) | |
470 | goto end; | |
471 | if (debug) { | |
472 | BIO_set_callback_ex(bzstd, BIO_debug_callback_ex); | |
473 | BIO_set_callback_arg(bzstd, (char *)bio_err); | |
474 | } | |
475 | if (enc) | |
476 | wbio = BIO_push(bzstd, wbio); | |
477 | else | |
478 | rbio = BIO_push(bzstd, rbio); | |
479 | } | |
8931b30d DSH |
480 | #endif |
481 | ||
5f62e044 | 482 | if (base64) { |
0f113f3e MC |
483 | if ((b64 = BIO_new(BIO_f_base64())) == NULL) |
484 | goto end; | |
485 | if (debug) { | |
0800318a | 486 | BIO_set_callback_ex(b64, BIO_debug_callback_ex); |
0f113f3e MC |
487 | BIO_set_callback_arg(b64, (char *)bio_err); |
488 | } | |
489 | if (olb64) | |
490 | BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL); | |
491 | if (enc) | |
492 | wbio = BIO_push(b64, wbio); | |
493 | else | |
494 | rbio = BIO_push(b64, rbio); | |
495 | } | |
496 | ||
497 | if (cipher != NULL) { | |
c4c8791e | 498 | if (str != NULL) { /* a passphrase is available */ |
0f113f3e | 499 | /* |
c4c8791e E |
500 | * Salt handling: if encrypting generate a salt if not supplied, |
501 | * and write to output BIO. If decrypting use salt from input BIO | |
502 | * if not given with args | |
0f113f3e MC |
503 | */ |
504 | unsigned char *sptr; | |
f6c460e8 F |
505 | size_t str_len = strlen(str); |
506 | ||
2234212c | 507 | if (nosalt) { |
0f113f3e | 508 | sptr = NULL; |
2234212c | 509 | } else { |
e3994583 | 510 | if (hsalt != NULL && !set_hex(hsalt, salt, saltlen)) { |
c4c8791e E |
511 | BIO_printf(bio_err, "invalid hex salt value\n"); |
512 | goto end; | |
513 | } | |
514 | if (enc) { /* encryption */ | |
515 | if (hsalt == NULL) { | |
e3994583 | 516 | if (RAND_bytes(salt, saltlen) <= 0) { |
c4c8791e E |
517 | BIO_printf(bio_err, "RAND_bytes failed\n"); |
518 | goto end; | |
519 | } | |
520 | /* | |
521 | * If -P option then don't bother writing. | |
522 | * If salt is given, shouldn't either ? | |
523 | */ | |
524 | if ((printkey != 2) | |
525 | && (BIO_write(wbio, magic, | |
526 | sizeof(magic) - 1) != sizeof(magic) - 1 | |
527 | || BIO_write(wbio, | |
528 | (char *)salt, | |
e3994583 | 529 | saltlen) != saltlen)) { |
c4c8791e | 530 | BIO_printf(bio_err, "error writing output file\n"); |
0f113f3e MC |
531 | goto end; |
532 | } | |
2234212c | 533 | } |
c4c8791e E |
534 | } else { /* decryption */ |
535 | if (hsalt == NULL) { | |
536 | if (BIO_read(rbio, mbuf, sizeof(mbuf)) != sizeof(mbuf)) { | |
537 | BIO_printf(bio_err, "error reading input file\n"); | |
538 | goto end; | |
539 | } | |
540 | if (memcmp(mbuf, magic, sizeof(mbuf)) == 0) { /* file IS salted */ | |
541 | if (BIO_read(rbio, salt, | |
e3994583 | 542 | saltlen) != saltlen) { |
c4c8791e E |
543 | BIO_printf(bio_err, "error reading input file\n"); |
544 | goto end; | |
545 | } | |
546 | } else { /* file is NOT salted, NO salt available */ | |
547 | BIO_printf(bio_err, "bad magic number\n"); | |
548 | goto end; | |
549 | } | |
0f113f3e | 550 | } |
0f113f3e | 551 | } |
0f113f3e MC |
552 | sptr = salt; |
553 | } | |
554 | ||
405988f2 E |
555 | if (pbkdf2 == 1) { |
556 | /* | |
557 | * derive key and default iv | |
558 | * concatenated into a temporary buffer | |
559 | */ | |
560 | unsigned char tmpkeyiv[EVP_MAX_KEY_LENGTH + EVP_MAX_IV_LENGTH]; | |
ed576acd TM |
561 | int iklen = EVP_CIPHER_get_key_length(cipher); |
562 | int ivlen = EVP_CIPHER_get_iv_length(cipher); | |
405988f2 | 563 | /* not needed if HASH_UPDATE() is fixed : */ |
e3994583 | 564 | int islen = (sptr != NULL ? saltlen : 0); |
565 | ||
405988f2 E |
566 | if (!PKCS5_PBKDF2_HMAC(str, str_len, sptr, islen, |
567 | iter, dgst, iklen+ivlen, tmpkeyiv)) { | |
568 | BIO_printf(bio_err, "PKCS5_PBKDF2_HMAC failed\n"); | |
569 | goto end; | |
570 | } | |
571 | /* split and move data back to global buffer */ | |
572 | memcpy(key, tmpkeyiv, iklen); | |
573 | memcpy(iv, tmpkeyiv+iklen, ivlen); | |
574 | } else { | |
575 | BIO_printf(bio_err, "*** WARNING : " | |
576 | "deprecated key derivation used.\n" | |
577 | "Using -iter or -pbkdf2 would be better.\n"); | |
578 | if (!EVP_BytesToKey(cipher, dgst, sptr, | |
579 | (unsigned char *)str, str_len, | |
580 | 1, key, iv)) { | |
581 | BIO_printf(bio_err, "EVP_BytesToKey failed\n"); | |
582 | goto end; | |
583 | } | |
0f113f3e MC |
584 | } |
585 | /* | |
586 | * zero the complete buffer or the string passed from the command | |
e3713c36 | 587 | * line. |
0f113f3e MC |
588 | */ |
589 | if (str == strbuf) | |
590 | OPENSSL_cleanse(str, SIZE); | |
591 | else | |
f6c460e8 | 592 | OPENSSL_cleanse(str, str_len); |
0f113f3e | 593 | } |
8920a7cd | 594 | if (hiv != NULL) { |
ed576acd | 595 | int siz = EVP_CIPHER_get_iv_length(cipher); |
8920a7cd | 596 | if (siz == 0) { |
9c119bc6 | 597 | BIO_printf(bio_err, "warning: iv not used by this cipher\n"); |
d5961b22 | 598 | } else if (!set_hex(hiv, iv, siz)) { |
8920a7cd RL |
599 | BIO_printf(bio_err, "invalid hex iv value\n"); |
600 | goto end; | |
601 | } | |
0f113f3e MC |
602 | } |
603 | if ((hiv == NULL) && (str == NULL) | |
7850cc83 E |
604 | && EVP_CIPHER_get_iv_length(cipher) != 0 |
605 | && wrap == 0) { | |
0f113f3e | 606 | /* |
405988f2 E |
607 | * No IV was explicitly set and no IV was generated. |
608 | * Hence the IV is undefined, making correct decryption impossible. | |
0f113f3e MC |
609 | */ |
610 | BIO_printf(bio_err, "iv undefined\n"); | |
611 | goto end; | |
612 | } | |
1f83edda | 613 | if (hkey != NULL) { |
ed576acd | 614 | if (!set_hex(hkey, key, EVP_CIPHER_get_key_length(cipher))) { |
1f83edda E |
615 | BIO_printf(bio_err, "invalid hex key value\n"); |
616 | goto end; | |
617 | } | |
618 | /* wiping secret data as we no longer need it */ | |
6d382c74 | 619 | cleanse(hkey); |
0f113f3e MC |
620 | } |
621 | ||
622 | if ((benc = BIO_new(BIO_f_cipher())) == NULL) | |
623 | goto end; | |
624 | ||
625 | /* | |
626 | * Since we may be changing parameters work on the encryption context | |
627 | * rather than calling BIO_set_cipher(). | |
628 | */ | |
629 | ||
630 | BIO_get_cipher_ctx(benc, &ctx); | |
631 | ||
7850cc83 E |
632 | if (wrap == 1) |
633 | EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW); | |
634 | ||
1d864f0f | 635 | if (!EVP_CipherInit_ex(ctx, cipher, e, NULL, NULL, enc)) { |
0f113f3e | 636 | BIO_printf(bio_err, "Error setting cipher %s\n", |
ed576acd | 637 | EVP_CIPHER_get0_name(cipher)); |
0f113f3e MC |
638 | ERR_print_errors(bio_err); |
639 | goto end; | |
640 | } | |
641 | ||
642 | if (nopad) | |
643 | EVP_CIPHER_CTX_set_padding(ctx, 0); | |
644 | ||
7850cc83 E |
645 | if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, |
646 | (hiv == NULL && wrap == 1 ? NULL : iv), enc)) { | |
0f113f3e | 647 | BIO_printf(bio_err, "Error setting cipher %s\n", |
ed576acd | 648 | EVP_CIPHER_get0_name(cipher)); |
0f113f3e MC |
649 | ERR_print_errors(bio_err); |
650 | goto end; | |
651 | } | |
652 | ||
653 | if (debug) { | |
0800318a | 654 | BIO_set_callback_ex(benc, BIO_debug_callback_ex); |
0f113f3e MC |
655 | BIO_set_callback_arg(benc, (char *)bio_err); |
656 | } | |
657 | ||
658 | if (printkey) { | |
659 | if (!nosalt) { | |
660 | printf("salt="); | |
e3994583 | 661 | for (i = 0; i < (int)saltlen; i++) |
0f113f3e MC |
662 | printf("%02X", salt[i]); |
663 | printf("\n"); | |
664 | } | |
ed576acd | 665 | if (EVP_CIPHER_get_key_length(cipher) > 0) { |
0f113f3e | 666 | printf("key="); |
ed576acd | 667 | for (i = 0; i < EVP_CIPHER_get_key_length(cipher); i++) |
0f113f3e MC |
668 | printf("%02X", key[i]); |
669 | printf("\n"); | |
670 | } | |
ed576acd | 671 | if (EVP_CIPHER_get_iv_length(cipher) > 0) { |
0f113f3e | 672 | printf("iv ="); |
ed576acd | 673 | for (i = 0; i < EVP_CIPHER_get_iv_length(cipher); i++) |
0f113f3e MC |
674 | printf("%02X", iv[i]); |
675 | printf("\n"); | |
676 | } | |
677 | if (printkey == 2) { | |
678 | ret = 0; | |
679 | goto end; | |
680 | } | |
681 | } | |
682 | } | |
683 | ||
684 | /* Only encrypt/decrypt as we write the file */ | |
685 | if (benc != NULL) | |
686 | wbio = BIO_push(benc, wbio); | |
687 | ||
8ed7bbb4 | 688 | while (BIO_pending(rbio) || !BIO_eof(rbio)) { |
0f113f3e MC |
689 | inl = BIO_read(rbio, (char *)buff, bsize); |
690 | if (inl <= 0) | |
691 | break; | |
7850cc83 E |
692 | if (!streamable && !BIO_eof(rbio)) { /* do not output data */ |
693 | BIO_printf(bio_err, "Unstreamable cipher mode\n"); | |
694 | goto end; | |
695 | } | |
0f113f3e MC |
696 | if (BIO_write(wbio, (char *)buff, inl) != inl) { |
697 | BIO_printf(bio_err, "error writing output file\n"); | |
698 | goto end; | |
699 | } | |
7850cc83 E |
700 | if (!streamable) |
701 | break; | |
0f113f3e MC |
702 | } |
703 | if (!BIO_flush(wbio)) { | |
704 | BIO_printf(bio_err, "bad decrypt\n"); | |
705 | goto end; | |
706 | } | |
707 | ||
708 | ret = 0; | |
709 | if (verbose) { | |
12997aa9 RS |
710 | BIO_printf(bio_err, "bytes read : %8ju\n", BIO_number_read(in)); |
711 | BIO_printf(bio_err, "bytes written: %8ju\n", BIO_number_written(out)); | |
0f113f3e MC |
712 | } |
713 | end: | |
714 | ERR_print_errors(bio_err); | |
b548a1f1 RS |
715 | OPENSSL_free(strbuf); |
716 | OPENSSL_free(buff); | |
ca3a82c3 RS |
717 | BIO_free(in); |
718 | BIO_free_all(out); | |
719 | BIO_free(benc); | |
720 | BIO_free(b64); | |
606a417f RS |
721 | EVP_MD_free(dgst); |
722 | EVP_CIPHER_free(cipher); | |
59d21298 | 723 | #ifndef OPENSSL_NO_ZLIB |
ca3a82c3 | 724 | BIO_free(bzl); |
8931b30d | 725 | #endif |
12e96a23 | 726 | BIO_free(bbrot); |
caf9317d | 727 | BIO_free(bzstd); |
dd1abd44 | 728 | release_engine(e); |
b548a1f1 | 729 | OPENSSL_free(pass); |
eee95522 | 730 | return ret; |
7e1b7485 RS |
731 | } |
732 | ||
2b305ab0 | 733 | static void show_ciphers(const OBJ_NAME *name, void *arg) |
7e1b7485 | 734 | { |
2b305ab0 | 735 | struct doall_enc_ciphers *dec = (struct doall_enc_ciphers *)arg; |
777f1708 | 736 | const EVP_CIPHER *cipher; |
7e1b7485 RS |
737 | |
738 | if (!islower((unsigned char)*name->name)) | |
739 | return; | |
740 | ||
777f1708 P |
741 | /* Filter out ciphers that we cannot use */ |
742 | cipher = EVP_get_cipherbyname(name->name); | |
f7d2427a P |
743 | if (cipher == NULL |
744 | || (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) != 0 | |
745 | || EVP_CIPHER_get_mode(cipher) == EVP_CIPH_XTS_MODE) | |
777f1708 P |
746 | return; |
747 | ||
2b305ab0 P |
748 | BIO_printf(dec->bio, "-%-25s", name->name); |
749 | if (++dec->n == 3) { | |
750 | BIO_printf(dec->bio, "\n"); | |
751 | dec->n = 0; | |
7e1b7485 | 752 | } else |
2b305ab0 | 753 | BIO_printf(dec->bio, " "); |
0f113f3e | 754 | } |
d02b48c6 | 755 | |
d5961b22 | 756 | static int set_hex(const char *in, unsigned char *out, int size) |
0f113f3e MC |
757 | { |
758 | int i, n; | |
759 | unsigned char j; | |
760 | ||
d5961b22 | 761 | i = size * 2; |
0f113f3e | 762 | n = strlen(in); |
d5961b22 E |
763 | if (n > i) { |
764 | BIO_printf(bio_err, "hex string is too long, ignoring excess\n"); | |
765 | n = i; /* ignore exceeding part */ | |
766 | } else if (n < i) { | |
767 | BIO_printf(bio_err, "hex string is too short, padding with zero bytes to length\n"); | |
0f113f3e | 768 | } |
d5961b22 | 769 | |
0f113f3e MC |
770 | memset(out, 0, size); |
771 | for (i = 0; i < n; i++) { | |
d5961b22 | 772 | j = (unsigned char)*in++; |
2fa45e6e | 773 | if (!isxdigit(j)) { |
0f113f3e | 774 | BIO_printf(bio_err, "non-hex digit\n"); |
eee95522 | 775 | return 0; |
0f113f3e | 776 | } |
14f051a0 | 777 | j = (unsigned char)OPENSSL_hexchar2int(j); |
0f113f3e MC |
778 | if (i & 1) |
779 | out[i / 2] |= j; | |
780 | else | |
781 | out[i / 2] = (j << 4); | |
782 | } | |
eee95522 | 783 | return 1; |
0f113f3e | 784 | } |