2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
63 #include <openssl/bio.h>
64 #include <openssl/err.h>
65 #include <openssl/evp.h>
66 #include <openssl/objects.h>
67 #include <openssl/x509.h>
68 #include <openssl/rand.h>
69 #include <openssl/pem.h>
70 #ifndef OPENSSL_NO_COMP
71 # include <openssl/comp.h>
75 int set_hex(char *in, unsigned char *out, int size);
81 #define BSIZE (8*1024)
84 static void show_ciphers(const OBJ_NAME *name, void *bio_)
89 if (!islower((unsigned char)*name->name))
92 BIO_printf(bio, "-%-25s", name->name);
94 BIO_printf(bio, "\n");
100 int MAIN(int, char **);
102 int MAIN(int argc, char **argv)
104 static const char magic[] = "Salted__";
105 char mbuf[sizeof magic - 1];
107 unsigned char *buff = NULL, *bufsize = NULL;
108 int bsize = BSIZE, verbose = 0;
111 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
112 unsigned char salt[PKCS5_SALT_LEN];
113 char *str = NULL, *passarg = NULL, *pass = NULL;
114 char *hkey = NULL, *hiv = NULL, *hsalt = NULL;
116 int enc = 1, printkey = 0, i, base64 = 0;
121 int debug = 0, olb64 = 0, nosalt = 0;
122 const EVP_CIPHER *cipher = NULL, *c;
123 EVP_CIPHER_CTX *ctx = NULL;
124 char *inf = NULL, *outf = NULL;
125 BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
127 #define PROG_NAME_SIZE 39
128 char pname[PROG_NAME_SIZE + 1];
129 #ifndef OPENSSL_NO_ENGINE
132 const EVP_MD *dgst = NULL;
133 int non_fips_allow = 0;
138 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
139 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
141 if (!load_config(bio_err, NULL))
144 /* first check the program name */
145 program_name(argv[0], pname, sizeof pname);
146 if (strcmp(pname, "base64") == 0)
149 if (strcmp(pname, "zlib") == 0)
153 cipher = EVP_get_cipherbyname(pname);
155 if (!do_zlib && !base64 && (cipher == NULL)
156 && (strcmp(pname, "enc") != 0))
158 if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0))
161 BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
168 if (strcmp(*argv, "-e") == 0)
170 else if (strcmp(*argv, "-in") == 0) {
174 } else if (strcmp(*argv, "-out") == 0) {
178 } else if (strcmp(*argv, "-pass") == 0) {
183 #ifndef OPENSSL_NO_ENGINE
184 else if (strcmp(*argv, "-engine") == 0) {
190 else if (strcmp(*argv, "-d") == 0)
192 else if (strcmp(*argv, "-p") == 0)
194 else if (strcmp(*argv, "-v") == 0)
196 else if (strcmp(*argv, "-nopad") == 0)
198 else if (strcmp(*argv, "-salt") == 0)
200 else if (strcmp(*argv, "-nosalt") == 0)
202 else if (strcmp(*argv, "-debug") == 0)
204 else if (strcmp(*argv, "-P") == 0)
206 else if (strcmp(*argv, "-A") == 0)
208 else if (strcmp(*argv, "-a") == 0)
210 else if (strcmp(*argv, "-base64") == 0)
213 else if (strcmp(*argv, "-z") == 0)
216 else if (strcmp(*argv, "-bufsize") == 0) {
219 bufsize = (unsigned char *)*(++argv);
220 } else if (strcmp(*argv, "-k") == 0) {
224 } else if (strcmp(*argv, "-kfile") == 0) {
225 static char buf[128];
232 infile = fopen(file, "r");
233 if (infile == NULL) {
234 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
238 if (!fgets(buf, sizeof buf, infile)) {
239 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
244 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
246 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
249 BIO_printf(bio_err, "zero length password\n");
253 } else if (strcmp(*argv, "-K") == 0) {
257 } else if (strcmp(*argv, "-S") == 0) {
261 } else if (strcmp(*argv, "-iv") == 0) {
265 } else if (strcmp(*argv, "-md") == 0) {
269 } else if (strcmp(*argv, "-non-fips-allow") == 0)
271 else if ((argv[0][0] == '-') &&
272 ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) {
274 } else if (strcmp(*argv, "-none") == 0)
277 BIO_printf(bio_err, "unknown option '%s'\n", *argv);
279 BIO_printf(bio_err, "options are\n");
280 BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
281 BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
282 BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
283 BIO_printf(bio_err, "%-14s encrypt\n", "-e");
284 BIO_printf(bio_err, "%-14s decrypt\n", "-d");
286 "%-14s base64 encode/decode, depending on encryption flag\n",
288 BIO_printf(bio_err, "%-14s passphrase is the next argument\n",
291 "%-14s passphrase is the first line of the file argument\n",
294 "%-14s the next argument is the md to use to create a key\n",
297 "%-14s from a passphrase. One of md2, md5, sha or sha1\n",
299 BIO_printf(bio_err, "%-14s salt in hex is the next argument\n",
301 BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n",
303 BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n",
305 BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
306 BIO_printf(bio_err, "%-14s disable standard block padding\n",
308 #ifndef OPENSSL_NO_ENGINE
310 "%-14s use engine e, possibly a hardware device.\n",
314 BIO_printf(bio_err, "Cipher Types\n");
315 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
316 show_ciphers, bio_err);
317 BIO_printf(bio_err, "\n");
325 #ifndef OPENSSL_NO_ENGINE
326 setup_engine(bio_err, engine, 0);
329 if (cipher && EVP_CIPHER_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) {
331 "AEAD ciphers not supported by the enc utility\n");
335 if (cipher && (EVP_CIPHER_mode(cipher) == EVP_CIPH_XTS_MODE)) {
337 "Ciphers in XTS mode are not supported by the enc utility\n");
341 if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
342 BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
350 if (bufsize != NULL) {
353 for (n = 0; *bufsize; bufsize++) {
355 if ((i <= '9') && (i >= '0'))
356 n = n * 10 + i - '0';
363 if (*bufsize != '\0') {
364 BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
368 /* It must be large enough for a base64 encoded line */
369 if (base64 && n < 80)
374 BIO_printf(bio_err, "bufsize=%d\n", bsize);
377 strbuf = OPENSSL_malloc(SIZE);
378 buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
379 if ((buff == NULL) || (strbuf == NULL)) {
380 BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n",
381 (long)EVP_ENCODE_LENGTH(bsize));
385 in = BIO_new(BIO_s_file());
386 out = BIO_new(BIO_s_file());
387 if ((in == NULL) || (out == NULL)) {
388 ERR_print_errors(bio_err);
392 BIO_set_callback(in, BIO_debug_callback);
393 BIO_set_callback(out, BIO_debug_callback);
394 BIO_set_callback_arg(in, (char *)bio_err);
395 BIO_set_callback_arg(out, (char *)bio_err);
399 #ifndef OPENSSL_NO_SETVBUF_IONBF
401 setvbuf(stdin, (char *)NULL, _IONBF, 0);
402 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
403 BIO_set_fp(in, stdin, BIO_NOCLOSE);
405 if (BIO_read_filename(in, inf) <= 0) {
411 if (!str && passarg) {
412 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
413 BIO_printf(bio_err, "Error getting password\n");
419 if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
423 BIO_snprintf(buf, sizeof buf, "enter %s %s password:",
424 OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
425 (enc) ? "encryption" : "decryption");
427 i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc);
429 if (strbuf[0] == '\0') {
437 BIO_printf(bio_err, "bad password read\n");
444 BIO_set_fp(out, stdout, BIO_NOCLOSE);
445 #ifndef OPENSSL_NO_SETVBUF_IONBF
447 setvbuf(stdout, (char *)NULL, _IONBF, 0);
448 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
449 #ifdef OPENSSL_SYS_VMS
451 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
452 out = BIO_push(tmpbio, out);
456 if (BIO_write_filename(out, outf) <= 0) {
468 if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
471 wbio = BIO_push(bzl, wbio);
473 rbio = BIO_push(bzl, rbio);
478 if ((b64 = BIO_new(BIO_f_base64())) == NULL)
481 BIO_set_callback(b64, BIO_debug_callback);
482 BIO_set_callback_arg(b64, (char *)bio_err);
485 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
487 wbio = BIO_push(b64, wbio);
489 rbio = BIO_push(b64, rbio);
492 if (cipher != NULL) {
494 * Note that str is NULL if a key was passed on the command line, so
495 * we get no salt in that case. Is this a bug?
499 * Salt handling: if encrypting generate a salt and write to
500 * output BIO. If decrypting read salt from input BIO.
508 if (!set_hex(hsalt, salt, sizeof salt)) {
509 BIO_printf(bio_err, "invalid hex salt value\n");
512 } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
515 * If -P option then don't bother writing
518 && (BIO_write(wbio, magic,
519 sizeof magic - 1) != sizeof magic - 1
522 sizeof salt) != sizeof salt)) {
523 BIO_printf(bio_err, "error writing output file\n");
526 } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
528 (unsigned char *)salt,
529 sizeof salt) != sizeof salt) {
530 BIO_printf(bio_err, "error reading input file\n");
532 } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
533 BIO_printf(bio_err, "bad magic number\n");
540 if (!EVP_BytesToKey(cipher, dgst, sptr,
541 (unsigned char *)str,
542 strlen(str), 1, key, iv)) {
543 BIO_printf(bio_err, "EVP_BytesToKey failed\n");
547 * zero the complete buffer or the string passed from the command
548 * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
551 OPENSSL_cleanse(str, SIZE);
553 OPENSSL_cleanse(str, strlen(str));
555 if ((hiv != NULL) && !set_hex(hiv, iv, sizeof iv)) {
556 BIO_printf(bio_err, "invalid hex iv value\n");
559 if ((hiv == NULL) && (str == NULL)
560 && EVP_CIPHER_iv_length(cipher) != 0) {
562 * No IV was explicitly set and no IV was generated during
563 * EVP_BytesToKey. Hence the IV is undefined, making correct
564 * decryption impossible.
566 BIO_printf(bio_err, "iv undefined\n");
569 if ((hkey != NULL) && !set_hex(hkey, key, sizeof key)) {
570 BIO_printf(bio_err, "invalid hex key value\n");
574 if ((benc = BIO_new(BIO_f_cipher())) == NULL)
578 * Since we may be changing parameters work on the encryption context
579 * rather than calling BIO_set_cipher().
582 BIO_get_cipher_ctx(benc, &ctx);
585 EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW);
587 if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
588 BIO_printf(bio_err, "Error setting cipher %s\n",
589 EVP_CIPHER_name(cipher));
590 ERR_print_errors(bio_err);
595 EVP_CIPHER_CTX_set_padding(ctx, 0);
597 if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
598 BIO_printf(bio_err, "Error setting cipher %s\n",
599 EVP_CIPHER_name(cipher));
600 ERR_print_errors(bio_err);
605 BIO_set_callback(benc, BIO_debug_callback);
606 BIO_set_callback_arg(benc, (char *)bio_err);
612 for (i = 0; i < (int)sizeof(salt); i++)
613 printf("%02X", salt[i]);
616 if (cipher->key_len > 0) {
618 for (i = 0; i < cipher->key_len; i++)
619 printf("%02X", key[i]);
622 if (cipher->iv_len > 0) {
624 for (i = 0; i < cipher->iv_len; i++)
625 printf("%02X", iv[i]);
635 /* Only encrypt/decrypt as we write the file */
637 wbio = BIO_push(benc, wbio);
640 inl = BIO_read(rbio, (char *)buff, bsize);
643 if (BIO_write(wbio, (char *)buff, inl) != inl) {
644 BIO_printf(bio_err, "error writing output file\n");
648 if (!BIO_flush(wbio)) {
649 BIO_printf(bio_err, "bad decrypt\n");
655 BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
656 BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
659 ERR_print_errors(bio_err);
661 OPENSSL_free(strbuf);
682 int set_hex(char *in, unsigned char *out, int size)
688 if (n > (size * 2)) {
689 BIO_printf(bio_err, "hex string is too long\n");
692 memset(out, 0, size);
693 for (i = 0; i < n; i++) {
694 j = (unsigned char)*in;
698 if ((j >= '0') && (j <= '9'))
700 else if ((j >= 'A') && (j <= 'F'))
702 else if ((j >= 'a') && (j <= 'f'))
705 BIO_printf(bio_err, "non-hex digit\n");
711 out[i / 2] = (j << 4);