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846e33c7 1/*
6738bf14 2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6 3 *
846e33c7
RS
4 * Licensed under the OpenSSL license (the "License"). You may not use
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 <string.h>
12#include <stdlib.h>
13#include "apps.h"
dab2cd68 14#include "progs.h"
ec577822
BM
15#include <openssl/bio.h>
16#include <openssl/err.h>
17#include <openssl/evp.h>
18#include <openssl/objects.h>
19#include <openssl/x509.h>
20#include <openssl/pem.h>
52cfa397 21#include <openssl/hmac.h>
d02b48c6
RE
22
23#undef BUFSIZE
0f113f3e 24#define BUFSIZE 1024*8
d02b48c6 25
d15711ef 26int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
0f113f3e
MC
27 EVP_PKEY *key, unsigned char *sigin, int siglen,
28 const char *sig_name, const char *md_name,
a773b52a 29 const char *file);
667ac4ec 30
7e1b7485
RS
31typedef enum OPTION_choice {
32 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
3ee1eac2 33 OPT_C, OPT_R, OPT_OUT, OPT_SIGN, OPT_PASSIN, OPT_VERIFY,
7e1b7485
RS
34 OPT_PRVERIFY, OPT_SIGNATURE, OPT_KEYFORM, OPT_ENGINE, OPT_ENGINE_IMPL,
35 OPT_HEX, OPT_BINARY, OPT_DEBUG, OPT_FIPS_FINGERPRINT,
700b4a4a 36 OPT_HMAC, OPT_MAC, OPT_SIGOPT, OPT_MACOPT,
3ee1eac2 37 OPT_DIGEST,
f1b8b001 38 OPT_R_ENUM
7e1b7485
RS
39} OPTION_CHOICE;
40
44c83ebd 41const OPTIONS dgst_options[] = {
7e1b7485
RS
42 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [file...]\n"},
43 {OPT_HELP_STR, 1, '-',
44 " file... files to digest (default is stdin)\n"},
45 {"help", OPT_HELP, '-', "Display this summary"},
46 {"c", OPT_C, '-', "Print the digest with separating colons"},
47 {"r", OPT_R, '-', "Print the digest in coreutils format"},
7e1b7485 48 {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
a173a7ee 49 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
dd958974
DSH
50 {"sign", OPT_SIGN, 's', "Sign digest using private key"},
51 {"verify", OPT_VERIFY, 's',
52 "Verify a signature using public key"},
53 {"prverify", OPT_PRVERIFY, 's',
54 "Verify a signature using private key"},
7e1b7485
RS
55 {"signature", OPT_SIGNATURE, '<', "File with signature to verify"},
56 {"keyform", OPT_KEYFORM, 'f', "Key file format (PEM or ENGINE)"},
7e1b7485
RS
57 {"hex", OPT_HEX, '-', "Print as hex dump"},
58 {"binary", OPT_BINARY, '-', "Print in binary form"},
59 {"d", OPT_DEBUG, '-', "Print debug info"},
a173a7ee
RS
60 {"debug", OPT_DEBUG, '-', "Print debug info"},
61 {"fips-fingerprint", OPT_FIPS_FINGERPRINT, '-',
62 "Compute HMAC with the key used in OpenSSL-FIPS fingerprint"},
7e1b7485 63 {"hmac", OPT_HMAC, 's', "Create hashed MAC with key"},
0d4fb843 64 {"mac", OPT_MAC, 's', "Create MAC (not necessarily HMAC)"},
d175e8a6
MC
65 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
66 {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form or key"},
9c3bcfa0 67 {"", OPT_DIGEST, '-', "Any supported digest"},
3ee1eac2 68 OPT_R_OPTIONS,
333b070e
RS
69#ifndef OPENSSL_NO_ENGINE
70 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
a173a7ee
RS
71 {"engine_impl", OPT_ENGINE_IMPL, '-',
72 "Also use engine given by -engine for digest operations"},
333b070e 73#endif
7e1b7485
RS
74 {NULL}
75};
76
77int dgst_main(int argc, char **argv)
0f113f3e 78{
7e1b7485 79 BIO *in = NULL, *inp, *bmd = NULL, *out = NULL;
0f113f3e 80 ENGINE *e = NULL, *impl = NULL;
7e1b7485
RS
81 EVP_PKEY *sigkey = NULL;
82 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
83 char *hmac_key = NULL;
84 char *mac_name = NULL;
85 char *passinarg = NULL, *passin = NULL;
0f113f3e 86 const EVP_MD *md = NULL, *m;
7e1b7485 87 const char *outfile = NULL, *keyfile = NULL, *prog = NULL;
3ee1eac2 88 const char *sigfile = NULL;
7e1b7485
RS
89 OPTION_CHOICE o;
90 int separator = 0, debug = 0, keyform = FORMAT_PEM, siglen = 0;
700b4a4a 91 int i, ret = 1, out_bin = -1, want_pub = 0, do_verify = 0;
7e1b7485 92 unsigned char *buf = NULL, *sigbuf = NULL;
0f113f3e 93 int engine_impl = 0;
0f113f3e 94
7e1b7485 95 prog = opt_progname(argv[0]);
68dc6824 96 buf = app_malloc(BUFSIZE, "I/O buffer");
7e1b7485
RS
97 md = EVP_get_digestbyname(prog);
98
99 prog = opt_init(argc, argv, dgst_options);
100 while ((o = opt_next()) != OPT_EOF) {
101 switch (o) {
102 case OPT_EOF:
103 case OPT_ERR:
104 opthelp:
105 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
106 goto end;
107 case OPT_HELP:
108 opt_help(dgst_options);
109 ret = 0;
110 goto end;
111 case OPT_C:
0f113f3e 112 separator = 1;
7e1b7485
RS
113 break;
114 case OPT_R:
0f113f3e 115 separator = 2;
7e1b7485 116 break;
3ee1eac2
RS
117 case OPT_R_CASES:
118 if (!opt_rand(o))
119 goto end;
7e1b7485
RS
120 break;
121 case OPT_OUT:
122 outfile = opt_arg();
123 break;
124 case OPT_SIGN:
125 keyfile = opt_arg();
126 break;
127 case OPT_PASSIN:
128 passinarg = opt_arg();
129 break;
130 case OPT_VERIFY:
131 keyfile = opt_arg();
132 want_pub = do_verify = 1;
133 break;
134 case OPT_PRVERIFY:
135 keyfile = opt_arg();
0f113f3e 136 do_verify = 1;
7e1b7485
RS
137 break;
138 case OPT_SIGNATURE:
139 sigfile = opt_arg();
140 break;
141 case OPT_KEYFORM:
142 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
143 goto opthelp;
144 break;
7e1b7485 145 case OPT_ENGINE:
333b070e 146 e = setup_engine(opt_arg(), 0);
7e1b7485
RS
147 break;
148 case OPT_ENGINE_IMPL:
0f113f3e 149 engine_impl = 1;
7e1b7485 150 break;
7e1b7485 151 case OPT_HEX:
0f113f3e 152 out_bin = 0;
7e1b7485
RS
153 break;
154 case OPT_BINARY:
0f113f3e 155 out_bin = 1;
7e1b7485
RS
156 break;
157 case OPT_DEBUG:
0f113f3e 158 debug = 1;
7e1b7485
RS
159 break;
160 case OPT_FIPS_FINGERPRINT:
0f113f3e 161 hmac_key = "etaonrishdlcupfm";
7e1b7485 162 break;
7e1b7485
RS
163 case OPT_HMAC:
164 hmac_key = opt_arg();
165 break;
166 case OPT_MAC:
167 mac_name = opt_arg();
168 break;
169 case OPT_SIGOPT:
0f113f3e
MC
170 if (!sigopts)
171 sigopts = sk_OPENSSL_STRING_new_null();
7e1b7485
RS
172 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
173 goto opthelp;
174 break;
175 case OPT_MACOPT:
0f113f3e
MC
176 if (!macopts)
177 macopts = sk_OPENSSL_STRING_new_null();
7e1b7485
RS
178 if (!macopts || !sk_OPENSSL_STRING_push(macopts, opt_arg()))
179 goto opthelp;
180 break;
181 case OPT_DIGEST:
182 if (!opt_md(opt_unknown(), &m))
183 goto opthelp;
0f113f3e 184 md = m;
0f113f3e 185 break;
7e1b7485 186 }
0f113f3e 187 }
7e1b7485
RS
188 argc = opt_num_rest();
189 argv = opt_rest();
13a46183
RS
190 if (keyfile != NULL && argc > 1) {
191 BIO_printf(bio_err, "%s: Can only sign or verify one file.\n", prog);
192 goto end;
193 }
0f113f3e 194
2234212c 195 if (do_verify && sigfile == NULL) {
0f113f3e
MC
196 BIO_printf(bio_err,
197 "No signature to verify: use the -signature option\n");
198 goto end;
199 }
0f113f3e
MC
200 if (engine_impl)
201 impl = e;
bb845ee0 202
0f113f3e
MC
203 in = BIO_new(BIO_s_file());
204 bmd = BIO_new(BIO_f_md());
be1477ad
MC
205 if ((in == NULL) || (bmd == NULL)) {
206 ERR_print_errors(bio_err);
207 goto end;
208 }
209
0f113f3e
MC
210 if (debug) {
211 BIO_set_callback(in, BIO_debug_callback);
212 /* needed for windows 3.1 */
213 BIO_set_callback_arg(in, (char *)bio_err);
214 }
215
7e1b7485 216 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
0f113f3e
MC
217 BIO_printf(bio_err, "Error getting password\n");
218 goto end;
219 }
220
0f113f3e 221 if (out_bin == -1) {
2234212c 222 if (keyfile != NULL)
0f113f3e
MC
223 out_bin = 1;
224 else
225 out_bin = 0;
226 }
227
bdd58d98 228 out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
7e1b7485 229 if (out == NULL)
0f113f3e 230 goto end;
7e1b7485 231
2234212c 232 if ((!(mac_name == NULL) + !(keyfile == NULL) + !(hmac_key == NULL)) > 1) {
0f113f3e
MC
233 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
234 goto end;
235 }
236
2234212c 237 if (keyfile != NULL) {
0f113f3e 238 if (want_pub)
7e1b7485 239 sigkey = load_pubkey(keyfile, keyform, 0, NULL, e, "key file");
0f113f3e 240 else
7e1b7485 241 sigkey = load_key(keyfile, keyform, 0, passin, e, "key file");
2234212c 242 if (sigkey == NULL) {
0f113f3e
MC
243 /*
244 * load_[pub]key() has already printed an appropriate message
245 */
246 goto end;
247 }
248 }
249
2234212c 250 if (mac_name != NULL) {
0f113f3e
MC
251 EVP_PKEY_CTX *mac_ctx = NULL;
252 int r = 0;
7e1b7485 253 if (!init_gen_str(&mac_ctx, mac_name, impl, 0))
0f113f3e 254 goto mac_end;
2234212c 255 if (macopts != NULL) {
0f113f3e
MC
256 char *macopt;
257 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
258 macopt = sk_OPENSSL_STRING_value(macopts, i);
259 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
260 BIO_printf(bio_err,
261 "MAC parameter error \"%s\"\n", macopt);
262 ERR_print_errors(bio_err);
263 goto mac_end;
264 }
265 }
266 }
267 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
268 BIO_puts(bio_err, "Error generating key\n");
269 ERR_print_errors(bio_err);
270 goto mac_end;
271 }
272 r = 1;
273 mac_end:
c5ba2d99 274 EVP_PKEY_CTX_free(mac_ctx);
0f113f3e
MC
275 if (r == 0)
276 goto end;
277 }
278
2234212c 279 if (hmac_key != NULL) {
0f113f3e
MC
280 sigkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, impl,
281 (unsigned char *)hmac_key, -1);
2234212c 282 if (sigkey == NULL)
0f113f3e
MC
283 goto end;
284 }
285
2234212c 286 if (sigkey != NULL) {
0f113f3e
MC
287 EVP_MD_CTX *mctx = NULL;
288 EVP_PKEY_CTX *pctx = NULL;
289 int r;
290 if (!BIO_get_md_ctx(bmd, &mctx)) {
291 BIO_printf(bio_err, "Error getting context\n");
292 ERR_print_errors(bio_err);
293 goto end;
294 }
295 if (do_verify)
296 r = EVP_DigestVerifyInit(mctx, &pctx, md, impl, sigkey);
297 else
298 r = EVP_DigestSignInit(mctx, &pctx, md, impl, sigkey);
299 if (!r) {
300 BIO_printf(bio_err, "Error setting context\n");
301 ERR_print_errors(bio_err);
302 goto end;
303 }
2234212c 304 if (sigopts != NULL) {
0f113f3e
MC
305 char *sigopt;
306 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
307 sigopt = sk_OPENSSL_STRING_value(sigopts, i);
308 if (pkey_ctrl_string(pctx, sigopt) <= 0) {
309 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
310 ERR_print_errors(bio_err);
311 goto end;
312 }
313 }
314 }
315 }
316 /* we use md as a filter, reading from 'in' */
317 else {
318 EVP_MD_CTX *mctx = NULL;
319 if (!BIO_get_md_ctx(bmd, &mctx)) {
320 BIO_printf(bio_err, "Error getting context\n");
321 ERR_print_errors(bio_err);
322 goto end;
323 }
324 if (md == NULL)
f8547f62 325 md = EVP_sha256();
0f113f3e 326 if (!EVP_DigestInit_ex(mctx, md, impl)) {
7e1b7485 327 BIO_printf(bio_err, "Error setting digest\n");
0f113f3e
MC
328 ERR_print_errors(bio_err);
329 goto end;
330 }
331 }
332
2234212c 333 if (sigfile != NULL && sigkey != NULL) {
7e1b7485 334 BIO *sigbio = BIO_new_file(sigfile, "rb");
2234212c 335 if (sigbio == NULL) {
0f113f3e
MC
336 BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
337 ERR_print_errors(bio_err);
338 goto end;
339 }
7e1b7485 340 siglen = EVP_PKEY_size(sigkey);
68dc6824 341 sigbuf = app_malloc(siglen, "signature buffer");
0f113f3e
MC
342 siglen = BIO_read(sigbio, sigbuf, siglen);
343 BIO_free(sigbio);
344 if (siglen <= 0) {
345 BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
346 ERR_print_errors(bio_err);
347 goto end;
348 }
349 }
350 inp = BIO_push(bmd, in);
351
352 if (md == NULL) {
353 EVP_MD_CTX *tctx;
354 BIO_get_md_ctx(bmd, &tctx);
355 md = EVP_MD_CTX_md(tctx);
356 }
357
358 if (argc == 0) {
359 BIO_set_fp(in, stdin, BIO_NOCLOSE);
7e1b7485 360 ret = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
a773b52a 361 siglen, NULL, NULL, "stdin");
0f113f3e
MC
362 } else {
363 const char *md_name = NULL, *sig_name = NULL;
364 if (!out_bin) {
2234212c 365 if (sigkey != NULL) {
0f113f3e
MC
366 const EVP_PKEY_ASN1_METHOD *ameth;
367 ameth = EVP_PKEY_get0_asn1(sigkey);
368 if (ameth)
369 EVP_PKEY_asn1_get0_info(NULL, NULL,
370 NULL, NULL, &sig_name, ameth);
371 }
2234212c 372 if (md != NULL)
0f113f3e
MC
373 md_name = EVP_MD_name(md);
374 }
7e1b7485 375 ret = 0;
0f113f3e
MC
376 for (i = 0; i < argc; i++) {
377 int r;
378 if (BIO_read_filename(in, argv[i]) <= 0) {
379 perror(argv[i]);
7e1b7485 380 ret++;
0f113f3e 381 continue;
2234212c 382 } else {
0f113f3e 383 r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
a773b52a 384 siglen, sig_name, md_name, argv[i]);
2234212c 385 }
0f113f3e 386 if (r)
7e1b7485 387 ret = r;
0f113f3e
MC
388 (void)BIO_reset(bmd);
389 }
390 }
391 end:
4b45c6e5 392 OPENSSL_clear_free(buf, BUFSIZE);
ca3a82c3 393 BIO_free(in);
25aaa98a 394 OPENSSL_free(passin);
0f113f3e
MC
395 BIO_free_all(out);
396 EVP_PKEY_free(sigkey);
25aaa98a
RS
397 sk_OPENSSL_STRING_free(sigopts);
398 sk_OPENSSL_STRING_free(macopts);
b548a1f1 399 OPENSSL_free(sigbuf);
ca3a82c3 400 BIO_free(bmd);
dd1abd44 401 release_engine(e);
26a7d938 402 return ret;
0f113f3e 403}
d02b48c6 404
d15711ef 405int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
0f113f3e
MC
406 EVP_PKEY *key, unsigned char *sigin, int siglen,
407 const char *sig_name, const char *md_name,
a773b52a 408 const char *file)
0f113f3e
MC
409{
410 size_t len;
411 int i;
412
413 for (;;) {
414 i = BIO_read(bp, (char *)buf, BUFSIZE);
415 if (i < 0) {
416 BIO_printf(bio_err, "Read Error in %s\n", file);
417 ERR_print_errors(bio_err);
418 return 1;
419 }
420 if (i == 0)
421 break;
422 }
2234212c 423 if (sigin != NULL) {
0f113f3e
MC
424 EVP_MD_CTX *ctx;
425 BIO_get_md_ctx(bp, &ctx);
426 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
2234212c 427 if (i > 0) {
0f113f3e 428 BIO_printf(out, "Verified OK\n");
2234212c 429 } else if (i == 0) {
0f113f3e
MC
430 BIO_printf(out, "Verification Failure\n");
431 return 1;
432 } else {
433 BIO_printf(bio_err, "Error Verifying Data\n");
434 ERR_print_errors(bio_err);
435 return 1;
436 }
437 return 0;
438 }
2234212c 439 if (key != NULL) {
0f113f3e
MC
440 EVP_MD_CTX *ctx;
441 BIO_get_md_ctx(bp, &ctx);
442 len = BUFSIZE;
443 if (!EVP_DigestSignFinal(ctx, buf, &len)) {
444 BIO_printf(bio_err, "Error Signing Data\n");
445 ERR_print_errors(bio_err);
446 return 1;
447 }
448 } else {
449 len = BIO_gets(bp, (char *)buf, BUFSIZE);
450 if ((int)len < 0) {
451 ERR_print_errors(bio_err);
452 return 1;
453 }
454 }
455
2234212c 456 if (binout) {
0f113f3e 457 BIO_write(out, buf, len);
2234212c 458 } else if (sep == 2) {
0f113f3e
MC
459 for (i = 0; i < (int)len; i++)
460 BIO_printf(out, "%02x", buf[i]);
461 BIO_printf(out, " *%s\n", file);
462 } else {
2234212c 463 if (sig_name != NULL) {
0f113f3e 464 BIO_puts(out, sig_name);
2234212c 465 if (md_name != NULL)
0f113f3e
MC
466 BIO_printf(out, "-%s", md_name);
467 BIO_printf(out, "(%s)= ", file);
2234212c 468 } else if (md_name != NULL) {
0f113f3e 469 BIO_printf(out, "%s(%s)= ", md_name, file);
2234212c 470 } else {
0f113f3e 471 BIO_printf(out, "(%s)= ", file);
2234212c 472 }
0f113f3e
MC
473 for (i = 0; i < (int)len; i++) {
474 if (sep && (i != 0))
475 BIO_printf(out, ":");
476 BIO_printf(out, "%02x", buf[i]);
477 }
478 BIO_printf(out, "\n");
479 }
480 return 0;
481}