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>
72 int set_hex(char *in, unsigned char *out, int size);
78 #define BSIZE (8*1024)
81 static void show_ciphers(const OBJ_NAME *name, void *bio_)
86 if (!islower((unsigned char)*name->name))
89 BIO_printf(bio, "-%-25s", name->name);
91 BIO_printf(bio, "\n");
97 int MAIN(int, char **);
99 int MAIN(int argc, char **argv)
101 static const char magic[] = "Salted__";
102 char mbuf[sizeof magic - 1];
104 unsigned char *buff = NULL, *bufsize = NULL;
105 int bsize = BSIZE, verbose = 0;
108 unsigned char key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
109 unsigned char salt[PKCS5_SALT_LEN];
110 char *str = NULL, *passarg = NULL, *pass = NULL;
111 char *hkey = NULL, *hiv = NULL, *hsalt = NULL;
113 int enc = 1, printkey = 0, i, base64 = 0;
114 int debug = 0, olb64 = 0, nosalt = 0;
115 const EVP_CIPHER *cipher = NULL, *c;
116 EVP_CIPHER_CTX *ctx = NULL;
117 char *inf = NULL, *outf = NULL;
118 BIO *in = NULL, *out = NULL, *b64 = NULL, *benc = NULL, *rbio =
120 #define PROG_NAME_SIZE 39
121 char pname[PROG_NAME_SIZE + 1];
122 #ifndef OPENSSL_NO_ENGINE
125 const EVP_MD *dgst = NULL;
126 int non_fips_allow = 0;
131 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
132 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
134 if (!load_config(bio_err, NULL))
137 /* first check the program name */
138 program_name(argv[0], pname, sizeof pname);
139 if (strcmp(pname, "base64") == 0)
142 cipher = EVP_get_cipherbyname(pname);
143 if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0)) {
144 BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
151 if (strcmp(*argv, "-e") == 0)
153 else if (strcmp(*argv, "-in") == 0) {
157 } else if (strcmp(*argv, "-out") == 0) {
161 } else if (strcmp(*argv, "-pass") == 0) {
166 #ifndef OPENSSL_NO_ENGINE
167 else if (strcmp(*argv, "-engine") == 0) {
173 else if (strcmp(*argv, "-d") == 0)
175 else if (strcmp(*argv, "-p") == 0)
177 else if (strcmp(*argv, "-v") == 0)
179 else if (strcmp(*argv, "-nopad") == 0)
181 else if (strcmp(*argv, "-salt") == 0)
183 else if (strcmp(*argv, "-nosalt") == 0)
185 else if (strcmp(*argv, "-debug") == 0)
187 else if (strcmp(*argv, "-P") == 0)
189 else if (strcmp(*argv, "-A") == 0)
191 else if (strcmp(*argv, "-a") == 0)
193 else if (strcmp(*argv, "-base64") == 0)
195 else if (strcmp(*argv, "-bufsize") == 0) {
198 bufsize = (unsigned char *)*(++argv);
199 } else if (strcmp(*argv, "-k") == 0) {
203 } else if (strcmp(*argv, "-kfile") == 0) {
204 static char buf[128];
211 infile = fopen(file, "r");
212 if (infile == NULL) {
213 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
217 if (!fgets(buf, sizeof buf, infile)) {
218 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
223 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
225 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
228 BIO_printf(bio_err, "zero length password\n");
232 } else if (strcmp(*argv, "-K") == 0) {
236 } else if (strcmp(*argv, "-S") == 0) {
240 } else if (strcmp(*argv, "-iv") == 0) {
244 } else if (strcmp(*argv, "-md") == 0) {
248 } else if (strcmp(*argv, "-non-fips-allow") == 0)
250 else if ((argv[0][0] == '-') &&
251 ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) {
253 } else if (strcmp(*argv, "-none") == 0)
256 BIO_printf(bio_err, "unknown option '%s'\n", *argv);
258 BIO_printf(bio_err, "options are\n");
259 BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
260 BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
261 BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
262 BIO_printf(bio_err, "%-14s encrypt\n", "-e");
263 BIO_printf(bio_err, "%-14s decrypt\n", "-d");
265 "%-14s base64 encode/decode, depending on encryption flag\n",
267 BIO_printf(bio_err, "%-14s passphrase is the next argument\n",
270 "%-14s passphrase is the first line of the file argument\n",
273 "%-14s the next argument is the md to use to create a key\n",
276 "%-14s from a passphrase. One of md2, md5, sha or sha1\n",
278 BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n",
280 BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n",
282 BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
283 #ifndef OPENSSL_NO_ENGINE
285 "%-14s use engine e, possibly a hardware device.\n",
289 BIO_printf(bio_err, "Cipher Types\n");
290 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
291 show_ciphers, bio_err);
292 BIO_printf(bio_err, "\n");
300 #ifndef OPENSSL_NO_ENGINE
301 setup_engine(bio_err, engine, 0);
304 if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
305 BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
316 if (bufsize != NULL) {
319 for (n = 0; *bufsize; bufsize++) {
321 if ((i <= '9') && (i >= '0'))
322 n = n * 10 + i - '0';
329 if (*bufsize != '\0') {
330 BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
334 /* It must be large enough for a base64 encoded line */
335 if (base64 && n < 80)
340 BIO_printf(bio_err, "bufsize=%d\n", bsize);
343 strbuf = OPENSSL_malloc(SIZE);
344 buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
345 if ((buff == NULL) || (strbuf == NULL)) {
346 BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n",
347 (long)EVP_ENCODE_LENGTH(bsize));
351 in = BIO_new(BIO_s_file());
352 out = BIO_new(BIO_s_file());
353 if ((in == NULL) || (out == NULL)) {
354 ERR_print_errors(bio_err);
358 BIO_set_callback(in, BIO_debug_callback);
359 BIO_set_callback(out, BIO_debug_callback);
360 BIO_set_callback_arg(in, (char *)bio_err);
361 BIO_set_callback_arg(out, (char *)bio_err);
366 setvbuf(stdin, (char *)NULL, _IONBF, 0);
367 BIO_set_fp(in, stdin, BIO_NOCLOSE);
369 if (BIO_read_filename(in, inf) <= 0) {
375 if (!str && passarg) {
376 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
377 BIO_printf(bio_err, "Error getting password\n");
383 if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
387 BIO_snprintf(buf, sizeof buf, "enter %s %s password:",
388 OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
389 (enc) ? "encryption" : "decryption");
391 i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc);
393 if (strbuf[0] == '\0') {
401 BIO_printf(bio_err, "bad password read\n");
408 BIO_set_fp(out, stdout, BIO_NOCLOSE);
410 setvbuf(stdout, (char *)NULL, _IONBF, 0);
411 #ifdef OPENSSL_SYS_VMS
413 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
414 out = BIO_push(tmpbio, out);
418 if (BIO_write_filename(out, outf) <= 0) {
428 if ((b64 = BIO_new(BIO_f_base64())) == NULL)
431 BIO_set_callback(b64, BIO_debug_callback);
432 BIO_set_callback_arg(b64, (char *)bio_err);
435 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
437 wbio = BIO_push(b64, wbio);
439 rbio = BIO_push(b64, rbio);
442 if (cipher != NULL) {
444 * Note that str is NULL if a key was passed on the command line, so
445 * we get no salt in that case. Is this a bug?
449 * Salt handling: if encrypting generate a salt and write to
450 * output BIO. If decrypting read salt from input BIO.
458 if (!set_hex(hsalt, salt, sizeof salt)) {
459 BIO_printf(bio_err, "invalid hex salt value\n");
462 } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
465 * If -P option then don't bother writing
468 && (BIO_write(wbio, magic,
469 sizeof magic - 1) != sizeof magic - 1
472 sizeof salt) != sizeof salt)) {
473 BIO_printf(bio_err, "error writing output file\n");
476 } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
478 (unsigned char *)salt,
479 sizeof salt) != sizeof salt) {
480 BIO_printf(bio_err, "error reading input file\n");
482 } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
483 BIO_printf(bio_err, "bad magic number\n");
490 EVP_BytesToKey(cipher, dgst, sptr,
491 (unsigned char *)str, strlen(str), 1, key, iv);
493 * zero the complete buffer or the string passed from the command
494 * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
497 OPENSSL_cleanse(str, SIZE);
499 OPENSSL_cleanse(str, strlen(str));
501 if ((hiv != NULL) && !set_hex(hiv, iv, sizeof iv)) {
502 BIO_printf(bio_err, "invalid hex iv value\n");
505 if ((hiv == NULL) && (str == NULL)
506 && EVP_CIPHER_iv_length(cipher) != 0) {
508 * No IV was explicitly set and no IV was generated during
509 * EVP_BytesToKey. Hence the IV is undefined, making correct
510 * decryption impossible.
512 BIO_printf(bio_err, "iv undefined\n");
515 if ((hkey != NULL) && !set_hex(hkey, key, sizeof key)) {
516 BIO_printf(bio_err, "invalid hex key value\n");
520 if ((benc = BIO_new(BIO_f_cipher())) == NULL)
524 * Since we may be changing parameters work on the encryption context
525 * rather than calling BIO_set_cipher().
528 BIO_get_cipher_ctx(benc, &ctx);
531 EVP_CIPHER_CTX_set_flags(ctx, EVP_CIPH_FLAG_NON_FIPS_ALLOW);
533 if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
534 BIO_printf(bio_err, "Error setting cipher %s\n",
535 EVP_CIPHER_name(cipher));
536 ERR_print_errors(bio_err);
541 EVP_CIPHER_CTX_set_padding(ctx, 0);
543 if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
544 BIO_printf(bio_err, "Error setting cipher %s\n",
545 EVP_CIPHER_name(cipher));
546 ERR_print_errors(bio_err);
551 BIO_set_callback(benc, BIO_debug_callback);
552 BIO_set_callback_arg(benc, (char *)bio_err);
558 for (i = 0; i < (int)sizeof(salt); i++)
559 printf("%02X", salt[i]);
562 if (cipher->key_len > 0) {
564 for (i = 0; i < cipher->key_len; i++)
565 printf("%02X", key[i]);
568 if (cipher->iv_len > 0) {
570 for (i = 0; i < cipher->iv_len; i++)
571 printf("%02X", iv[i]);
581 /* Only encrypt/decrypt as we write the file */
583 wbio = BIO_push(benc, wbio);
586 inl = BIO_read(rbio, (char *)buff, bsize);
589 if (BIO_write(wbio, (char *)buff, inl) != inl) {
590 BIO_printf(bio_err, "error writing output file\n");
594 if (!BIO_flush(wbio)) {
595 BIO_printf(bio_err, "bad decrypt\n");
601 BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
602 BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
605 ERR_print_errors(bio_err);
607 OPENSSL_free(strbuf);
624 int set_hex(char *in, unsigned char *out, int size)
630 if (n > (size * 2)) {
631 BIO_printf(bio_err, "hex string is too long\n");
634 memset(out, 0, size);
635 for (i = 0; i < n; i++) {
636 j = (unsigned char)*in;
640 if ((j >= '0') && (j <= '9'))
642 else if ((j >= 'A') && (j <= 'F'))
644 else if ((j >= 'a') && (j <= 'f'))
647 BIO_printf(bio_err, "non-hex digit\n");
653 out[i / 2] = (j << 4);