1 /* $OpenBSD: dgst.c,v 1.8 2015/10/17 07:51:10 semarie Exp $ */
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.]
65 #include <openssl/bio.h>
66 #include <openssl/err.h>
67 #include <openssl/evp.h>
68 #include <openssl/hmac.h>
69 #include <openssl/objects.h>
70 #include <openssl/pem.h>
71 #include <openssl/x509.h>
73 #define BUFSIZE 1024*8
76 do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
77 EVP_PKEY * key, unsigned char *sigin, int siglen,
78 const char *sig_name, const char *md_name,
79 const char *file, BIO * bmd);
82 list_md_fn(const EVP_MD * m, const char *from, const char *to, void *arg)
88 mname = OBJ_nid2ln(EVP_MD_type(m));
90 if (strcmp(from, mname))
93 if (EVP_MD_flags(m) & EVP_MD_FLAG_PKEY_DIGEST)
95 if (strchr(mname, ' '))
96 mname = EVP_MD_name(m);
97 BIO_printf(arg, "-%-14s to use the %s message digest algorithm\n",
102 dgst_main(int argc, char **argv)
104 unsigned char *buf = NULL;
106 const EVP_MD *md = NULL, *m;
107 BIO *in = NULL, *inp;
110 #define PROG_NAME_SIZE 39
111 char pname[PROG_NAME_SIZE + 1];
114 int keyform = FORMAT_PEM;
115 const char *outfile = NULL, *keyfile = NULL;
116 const char *sigfile = NULL;
117 int out_bin = -1, want_pub = 0, do_verify = 0;
118 EVP_PKEY *sigkey = NULL;
119 unsigned char *sigbuf = NULL;
121 char *passargin = NULL, *passin = NULL;
122 char *hmac_key = NULL;
123 char *mac_name = NULL;
124 STACK_OF(OPENSSL_STRING) * sigopts = NULL, *macopts = NULL;
126 if (single_execution) {
127 if (pledge("stdio rpath wpath cpath tty", NULL) == -1) {
133 if ((buf = malloc(BUFSIZE)) == NULL) {
134 BIO_printf(bio_err, "out of memory\n");
138 /* first check the program name */
139 program_name(argv[0], pname, sizeof pname);
141 md = EVP_get_digestbyname(pname);
146 if ((*argv)[0] != '-')
148 if (strcmp(*argv, "-c") == 0)
150 else if (strcmp(*argv, "-r") == 0)
152 else if (strcmp(*argv, "-out") == 0) {
156 } else if (strcmp(*argv, "-sign") == 0) {
160 } else if (!strcmp(*argv, "-passin")) {
164 } else if (strcmp(*argv, "-verify") == 0) {
170 } else if (strcmp(*argv, "-prverify") == 0) {
175 } else if (strcmp(*argv, "-signature") == 0) {
179 } else if (strcmp(*argv, "-keyform") == 0) {
182 keyform = str2fmt(*(++argv));
184 else if (strcmp(*argv, "-hex") == 0)
186 else if (strcmp(*argv, "-binary") == 0)
188 else if (strcmp(*argv, "-d") == 0)
190 else if (!strcmp(*argv, "-hmac")) {
194 } else if (!strcmp(*argv, "-mac")) {
198 } else if (strcmp(*argv, "-sigopt") == 0) {
202 sigopts = sk_OPENSSL_STRING_new_null();
203 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
205 } else if (strcmp(*argv, "-macopt") == 0) {
209 macopts = sk_OPENSSL_STRING_new_null();
210 if (!macopts || !sk_OPENSSL_STRING_push(macopts, *(++argv)))
212 } else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL)
221 if (do_verify && !sigfile) {
222 BIO_printf(bio_err, "No signature to verify: use the -signature option\n");
225 if ((argc > 0) && (argv[0][0] == '-')) { /* bad option */
226 BIO_printf(bio_err, "unknown option '%s'\n", *argv);
227 BIO_printf(bio_err, "options are\n");
228 BIO_printf(bio_err, "-c to output the digest with separating colons\n");
229 BIO_printf(bio_err, "-r to output the digest in coreutils format\n");
230 BIO_printf(bio_err, "-d to output debug info\n");
231 BIO_printf(bio_err, "-hex output as hex dump\n");
232 BIO_printf(bio_err, "-binary output in binary form\n");
233 BIO_printf(bio_err, "-sign file sign digest using private key in file\n");
234 BIO_printf(bio_err, "-verify file verify a signature using public key in file\n");
235 BIO_printf(bio_err, "-prverify file verify a signature using private key in file\n");
236 BIO_printf(bio_err, "-keyform arg key file format (PEM)\n");
237 BIO_printf(bio_err, "-out filename output to filename rather than stdout\n");
238 BIO_printf(bio_err, "-signature file signature to verify\n");
239 BIO_printf(bio_err, "-sigopt nm:v signature parameter\n");
240 BIO_printf(bio_err, "-hmac key create hashed MAC with key\n");
241 BIO_printf(bio_err, "-mac algorithm create MAC (not neccessarily HMAC)\n");
242 BIO_printf(bio_err, "-macopt nm:v MAC algorithm parameters or key\n");
244 EVP_MD_do_all_sorted(list_md_fn, bio_err);
248 in = BIO_new(BIO_s_file());
249 bmd = BIO_new(BIO_f_md());
250 if (in == NULL || bmd == NULL) {
251 ERR_print_errors(bio_err);
256 BIO_set_callback(in, BIO_debug_callback);
257 /* needed for windows 3.1 */
258 BIO_set_callback_arg(in, (char *) bio_err);
260 if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
261 BIO_printf(bio_err, "Error getting password\n");
273 out = BIO_new_file(outfile, "wb");
275 out = BIO_new_file(outfile, "w");
277 out = BIO_new_fp(stdout, BIO_NOCLOSE);
281 BIO_printf(bio_err, "Error opening output file %s\n",
282 outfile ? outfile : "(stdout)");
283 ERR_print_errors(bio_err);
286 if ((!!mac_name + !!keyfile + !!hmac_key) > 1) {
287 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
292 sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
295 sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
299 * load_[pub]key() has already printed an appropriate
306 EVP_PKEY_CTX *mac_ctx = NULL;
308 if (!init_gen_str(bio_err, &mac_ctx, mac_name, 0))
312 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
313 macopt = sk_OPENSSL_STRING_value(macopts, i);
314 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
316 "MAC parameter error \"%s\"\n",
318 ERR_print_errors(bio_err);
323 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
324 BIO_puts(bio_err, "Error generating key\n");
325 ERR_print_errors(bio_err);
331 EVP_PKEY_CTX_free(mac_ctx);
336 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL,
337 (unsigned char *) hmac_key, -1);
342 EVP_MD_CTX *mctx = NULL;
343 EVP_PKEY_CTX *pctx = NULL;
345 if (!BIO_get_md_ctx(bmd, &mctx)) {
346 BIO_printf(bio_err, "Error getting context\n");
347 ERR_print_errors(bio_err);
351 r = EVP_DigestVerifyInit(mctx, &pctx, md, NULL, sigkey);
353 r = EVP_DigestSignInit(mctx, &pctx, md, NULL, sigkey);
355 BIO_printf(bio_err, "Error setting context\n");
356 ERR_print_errors(bio_err);
361 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
362 sigopt = sk_OPENSSL_STRING_value(sigopts, i);
363 if (pkey_ctrl_string(pctx, sigopt) <= 0) {
365 "parameter error \"%s\"\n",
367 ERR_print_errors(bio_err);
373 /* we use md as a filter, reading from 'in' */
377 if (!BIO_set_md(bmd, md)) {
378 BIO_printf(bio_err, "Error setting digest %s\n", pname);
379 ERR_print_errors(bio_err);
384 if (sigfile && sigkey) {
386 siglen = EVP_PKEY_size(sigkey);
387 sigbuf = malloc(siglen);
388 if (sigbuf == NULL) {
389 BIO_printf(bio_err, "out of memory\n");
390 ERR_print_errors(bio_err);
393 sigbio = BIO_new_file(sigfile, "rb");
395 BIO_printf(bio_err, "Error opening signature file %s\n",
397 ERR_print_errors(bio_err);
400 siglen = BIO_read(sigbio, sigbuf, siglen);
403 BIO_printf(bio_err, "Error reading signature file %s\n",
405 ERR_print_errors(bio_err);
409 inp = BIO_push(bmd, in);
413 BIO_get_md_ctx(bmd, &tctx);
414 md = EVP_MD_CTX_md(tctx);
417 BIO_set_fp(in, stdin, BIO_NOCLOSE);
418 err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
419 siglen, NULL, NULL, "stdin", bmd);
421 const char *md_name = NULL, *sig_name = NULL;
424 const EVP_PKEY_ASN1_METHOD *ameth;
425 ameth = EVP_PKEY_get0_asn1(sigkey);
427 EVP_PKEY_asn1_get0_info(NULL, NULL,
428 NULL, NULL, &sig_name, ameth);
430 md_name = EVP_MD_name(md);
433 for (i = 0; i < argc; i++) {
435 if (BIO_read_filename(in, argv[i]) <= 0) {
440 r = do_fp(out, buf, inp, separator, out_bin,
441 sigkey, sigbuf, siglen, sig_name, md_name,
446 (void) BIO_reset(bmd);
452 explicit_bzero(buf, BUFSIZE);
459 EVP_PKEY_free(sigkey);
461 sk_OPENSSL_STRING_free(sigopts);
463 sk_OPENSSL_STRING_free(macopts);
472 do_fp(BIO * out, unsigned char *buf, BIO * bp, int sep, int binout,
473 EVP_PKEY * key, unsigned char *sigin, int siglen,
474 const char *sig_name, const char *md_name,
475 const char *file, BIO * bmd)
481 i = BIO_read(bp, (char *) buf, BUFSIZE);
483 BIO_printf(bio_err, "Read Error in %s\n", file);
484 ERR_print_errors(bio_err);
492 BIO_get_md_ctx(bp, &ctx);
493 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int) siglen);
495 BIO_printf(out, "Verified OK\n");
497 BIO_printf(out, "Verification Failure\n");
500 BIO_printf(bio_err, "Error Verifying Data\n");
501 ERR_print_errors(bio_err);
508 BIO_get_md_ctx(bp, &ctx);
510 if (!EVP_DigestSignFinal(ctx, buf, &len)) {
511 BIO_printf(bio_err, "Error Signing Data\n");
512 ERR_print_errors(bio_err);
516 len = BIO_gets(bp, (char *) buf, BUFSIZE);
518 ERR_print_errors(bio_err);
524 BIO_write(out, buf, len);
526 for (i = 0; i < (int) len; i++)
527 BIO_printf(out, "%02x", buf[i]);
528 BIO_printf(out, " *%s\n", file);
531 BIO_printf(out, "%s-%s(%s)= ", sig_name, md_name, file);
533 BIO_printf(out, "%s(%s)= ", md_name, file);
535 BIO_printf(out, "(%s)= ", file);
536 for (i = 0; i < (int) len; i++) {
538 BIO_printf(out, ":");
539 BIO_printf(out, "%02x", buf[i]);
541 BIO_printf(out, "\n");