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;
137 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
138 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
140 if (!load_config(bio_err, NULL))
143 /* first check the program name */
144 program_name(argv[0], pname, sizeof pname);
145 if (strcmp(pname, "base64") == 0)
148 if (strcmp(pname, "zlib") == 0)
152 cipher = EVP_get_cipherbyname(pname);
154 if (!do_zlib && !base64 && (cipher == NULL)
155 && (strcmp(pname, "enc") != 0))
157 if (!base64 && (cipher == NULL) && (strcmp(pname, "enc") != 0))
160 BIO_printf(bio_err, "%s is an unknown cipher\n", pname);
167 if (strcmp(*argv, "-e") == 0)
169 else if (strcmp(*argv, "-in") == 0) {
173 } else if (strcmp(*argv, "-out") == 0) {
177 } else if (strcmp(*argv, "-pass") == 0) {
182 #ifndef OPENSSL_NO_ENGINE
183 else if (strcmp(*argv, "-engine") == 0) {
189 else if (strcmp(*argv, "-d") == 0)
191 else if (strcmp(*argv, "-p") == 0)
193 else if (strcmp(*argv, "-v") == 0)
195 else if (strcmp(*argv, "-nopad") == 0)
197 else if (strcmp(*argv, "-salt") == 0)
199 else if (strcmp(*argv, "-nosalt") == 0)
201 else if (strcmp(*argv, "-debug") == 0)
203 else if (strcmp(*argv, "-P") == 0)
205 else if (strcmp(*argv, "-A") == 0)
207 else if (strcmp(*argv, "-a") == 0)
209 else if (strcmp(*argv, "-base64") == 0)
212 else if (strcmp(*argv, "-z") == 0)
215 else if (strcmp(*argv, "-bufsize") == 0) {
218 bufsize = (unsigned char *)*(++argv);
219 } else if (strcmp(*argv, "-k") == 0) {
223 } else if (strcmp(*argv, "-kfile") == 0) {
224 static char buf[128];
231 infile = fopen(file, "r");
232 if (infile == NULL) {
233 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
237 if (!fgets(buf, sizeof buf, infile)) {
238 BIO_printf(bio_err, "unable to read key from '%s'\n", file);
243 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
245 if ((i > 0) && ((buf[i - 1] == '\n') || (buf[i - 1] == '\r')))
248 BIO_printf(bio_err, "zero length password\n");
252 } else if (strcmp(*argv, "-K") == 0) {
256 } else if (strcmp(*argv, "-S") == 0) {
260 } else if (strcmp(*argv, "-iv") == 0) {
264 } else if (strcmp(*argv, "-md") == 0) {
268 } else if ((argv[0][0] == '-') &&
269 ((c = EVP_get_cipherbyname(&(argv[0][1]))) != NULL)) {
271 } else if (strcmp(*argv, "-none") == 0)
274 BIO_printf(bio_err, "unknown option '%s'\n", *argv);
276 BIO_printf(bio_err, "options are\n");
277 BIO_printf(bio_err, "%-14s input file\n", "-in <file>");
278 BIO_printf(bio_err, "%-14s output file\n", "-out <file>");
279 BIO_printf(bio_err, "%-14s pass phrase source\n", "-pass <arg>");
280 BIO_printf(bio_err, "%-14s encrypt\n", "-e");
281 BIO_printf(bio_err, "%-14s decrypt\n", "-d");
283 "%-14s base64 encode/decode, depending on encryption flag\n",
285 BIO_printf(bio_err, "%-14s passphrase is the next argument\n",
288 "%-14s passphrase is the first line of the file argument\n",
291 "%-14s the next argument is the md to use to create a key\n",
294 "%-14s from a passphrase. One of md2, md5, sha or sha1\n",
296 BIO_printf(bio_err, "%-14s salt in hex is the next argument\n",
298 BIO_printf(bio_err, "%-14s key/iv in hex is the next argument\n",
300 BIO_printf(bio_err, "%-14s print the iv/key (then exit if -P)\n",
302 BIO_printf(bio_err, "%-14s buffer size\n", "-bufsize <n>");
303 BIO_printf(bio_err, "%-14s disable standard block padding\n",
305 #ifndef OPENSSL_NO_ENGINE
307 "%-14s use engine e, possibly a hardware device.\n",
311 BIO_printf(bio_err, "Cipher Types\n");
312 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_CIPHER_METH,
313 show_ciphers, bio_err);
314 BIO_printf(bio_err, "\n");
322 #ifndef OPENSSL_NO_ENGINE
323 setup_engine(bio_err, engine, 0);
326 if (md && (dgst = EVP_get_digestbyname(md)) == NULL) {
327 BIO_printf(bio_err, "%s is an unsupported message digest type\n", md);
335 if (bufsize != NULL) {
338 for (n = 0; *bufsize; bufsize++) {
340 if ((i <= '9') && (i >= '0'))
341 n = n * 10 + i - '0';
348 if (*bufsize != '\0') {
349 BIO_printf(bio_err, "invalid 'bufsize' specified.\n");
353 /* It must be large enough for a base64 encoded line */
354 if (base64 && n < 80)
359 BIO_printf(bio_err, "bufsize=%d\n", bsize);
362 strbuf = OPENSSL_malloc(SIZE);
363 buff = (unsigned char *)OPENSSL_malloc(EVP_ENCODE_LENGTH(bsize));
364 if ((buff == NULL) || (strbuf == NULL)) {
365 BIO_printf(bio_err, "OPENSSL_malloc failure %ld\n",
366 (long)EVP_ENCODE_LENGTH(bsize));
370 in = BIO_new(BIO_s_file());
371 out = BIO_new(BIO_s_file());
372 if ((in == NULL) || (out == NULL)) {
373 ERR_print_errors(bio_err);
377 BIO_set_callback(in, BIO_debug_callback);
378 BIO_set_callback(out, BIO_debug_callback);
379 BIO_set_callback_arg(in, (char *)bio_err);
380 BIO_set_callback_arg(out, (char *)bio_err);
384 #ifndef OPENSSL_NO_SETVBUF_IONBF
386 setvbuf(stdin, (char *)NULL, _IONBF, 0);
387 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
388 BIO_set_fp(in, stdin, BIO_NOCLOSE);
390 if (BIO_read_filename(in, inf) <= 0) {
396 if (!str && passarg) {
397 if (!app_passwd(bio_err, passarg, NULL, &pass, NULL)) {
398 BIO_printf(bio_err, "Error getting password\n");
404 if ((str == NULL) && (cipher != NULL) && (hkey == NULL)) {
408 BIO_snprintf(buf, sizeof buf, "enter %s %s password:",
409 OBJ_nid2ln(EVP_CIPHER_nid(cipher)),
410 (enc) ? "encryption" : "decryption");
412 i = EVP_read_pw_string((char *)strbuf, SIZE, buf, enc);
414 if (strbuf[0] == '\0') {
422 BIO_printf(bio_err, "bad password read\n");
429 BIO_set_fp(out, stdout, BIO_NOCLOSE);
430 #ifndef OPENSSL_NO_SETVBUF_IONBF
432 setvbuf(stdout, (char *)NULL, _IONBF, 0);
433 #endif /* ndef OPENSSL_NO_SETVBUF_IONBF */
434 #ifdef OPENSSL_SYS_VMS
436 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
437 out = BIO_push(tmpbio, out);
441 if (BIO_write_filename(out, outf) <= 0) {
453 if ((bzl = BIO_new(BIO_f_zlib())) == NULL)
456 wbio = BIO_push(bzl, wbio);
458 rbio = BIO_push(bzl, rbio);
463 if ((b64 = BIO_new(BIO_f_base64())) == NULL)
466 BIO_set_callback(b64, BIO_debug_callback);
467 BIO_set_callback_arg(b64, (char *)bio_err);
470 BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
472 wbio = BIO_push(b64, wbio);
474 rbio = BIO_push(b64, rbio);
477 if (cipher != NULL) {
479 * Note that str is NULL if a key was passed on the command line, so
480 * we get no salt in that case. Is this a bug?
484 * Salt handling: if encrypting generate a salt and write to
485 * output BIO. If decrypting read salt from input BIO.
493 if (!set_hex(hsalt, salt, sizeof salt)) {
494 BIO_printf(bio_err, "invalid hex salt value\n");
497 } else if (RAND_pseudo_bytes(salt, sizeof salt) < 0)
500 * If -P option then don't bother writing
503 && (BIO_write(wbio, magic,
504 sizeof magic - 1) != sizeof magic - 1
507 sizeof salt) != sizeof salt)) {
508 BIO_printf(bio_err, "error writing output file\n");
511 } else if (BIO_read(rbio, mbuf, sizeof mbuf) != sizeof mbuf
513 (unsigned char *)salt,
514 sizeof salt) != sizeof salt) {
515 BIO_printf(bio_err, "error reading input file\n");
517 } else if (memcmp(mbuf, magic, sizeof magic - 1)) {
518 BIO_printf(bio_err, "bad magic number\n");
525 EVP_BytesToKey(cipher, dgst, sptr,
526 (unsigned char *)str, strlen(str), 1, key, iv);
528 * zero the complete buffer or the string passed from the command
529 * line bug picked up by Larry J. Hughes Jr. <hughes@indiana.edu>
532 OPENSSL_cleanse(str, SIZE);
534 OPENSSL_cleanse(str, strlen(str));
536 if ((hiv != NULL) && !set_hex(hiv, iv, sizeof iv)) {
537 BIO_printf(bio_err, "invalid hex iv value\n");
540 if ((hiv == NULL) && (str == NULL)
541 && EVP_CIPHER_iv_length(cipher) != 0) {
543 * No IV was explicitly set and no IV was generated during
544 * EVP_BytesToKey. Hence the IV is undefined, making correct
545 * decryption impossible.
547 BIO_printf(bio_err, "iv undefined\n");
550 if ((hkey != NULL) && !set_hex(hkey, key, sizeof key)) {
551 BIO_printf(bio_err, "invalid hex key value\n");
555 if ((benc = BIO_new(BIO_f_cipher())) == NULL)
559 * Since we may be changing parameters work on the encryption context
560 * rather than calling BIO_set_cipher().
563 BIO_get_cipher_ctx(benc, &ctx);
564 if (!EVP_CipherInit_ex(ctx, cipher, NULL, NULL, NULL, enc)) {
565 BIO_printf(bio_err, "Error setting cipher %s\n",
566 EVP_CIPHER_name(cipher));
567 ERR_print_errors(bio_err);
572 EVP_CIPHER_CTX_set_padding(ctx, 0);
574 if (!EVP_CipherInit_ex(ctx, NULL, NULL, key, iv, enc)) {
575 BIO_printf(bio_err, "Error setting cipher %s\n",
576 EVP_CIPHER_name(cipher));
577 ERR_print_errors(bio_err);
582 BIO_set_callback(benc, BIO_debug_callback);
583 BIO_set_callback_arg(benc, (char *)bio_err);
589 for (i = 0; i < (int)sizeof(salt); i++)
590 printf("%02X", salt[i]);
593 if (cipher->key_len > 0) {
595 for (i = 0; i < cipher->key_len; i++)
596 printf("%02X", key[i]);
599 if (cipher->iv_len > 0) {
601 for (i = 0; i < cipher->iv_len; i++)
602 printf("%02X", iv[i]);
612 /* Only encrypt/decrypt as we write the file */
614 wbio = BIO_push(benc, wbio);
617 inl = BIO_read(rbio, (char *)buff, bsize);
620 if (BIO_write(wbio, (char *)buff, inl) != inl) {
621 BIO_printf(bio_err, "error writing output file\n");
625 if (!BIO_flush(wbio)) {
626 BIO_printf(bio_err, "bad decrypt\n");
632 BIO_printf(bio_err, "bytes read :%8ld\n", BIO_number_read(in));
633 BIO_printf(bio_err, "bytes written:%8ld\n", BIO_number_written(out));
636 ERR_print_errors(bio_err);
638 OPENSSL_free(strbuf);
659 int set_hex(char *in, unsigned char *out, int size)
665 if (n > (size * 2)) {
666 BIO_printf(bio_err, "hex string is too long\n");
669 memset(out, 0, size);
670 for (i = 0; i < n; i++) {
671 j = (unsigned char)*in;
675 if ((j >= '0') && (j <= '9'))
677 else if ((j >= 'A') && (j <= 'F'))
679 else if ((j >= 'a') && (j <= 'f'))
682 BIO_printf(bio_err, "non-hex digit\n");
688 out[i / 2] = (j << 4);