2 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
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>
21 #include <openssl/hmac.h>
25 #define BUFSIZE 1024*8
27 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
28 EVP_PKEY *key, unsigned char *sigin, int siglen,
29 const char *sig_name, const char *md_name,
31 static void show_digests(const OBJ_NAME *name, void *bio_);
33 struct doall_dgst_digests {
38 typedef enum OPTION_choice {
39 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_LIST,
40 OPT_C, OPT_R, OPT_OUT, OPT_SIGN, OPT_PASSIN, OPT_VERIFY,
41 OPT_PRVERIFY, OPT_SIGNATURE, OPT_KEYFORM, OPT_ENGINE, OPT_ENGINE_IMPL,
42 OPT_HEX, OPT_BINARY, OPT_DEBUG, OPT_FIPS_FINGERPRINT,
43 OPT_HMAC, OPT_MAC, OPT_SIGOPT, OPT_MACOPT,
48 const OPTIONS dgst_options[] = {
49 {OPT_HELP_STR, 1, '-', "Usage: %s [options] [file...]\n"},
51 OPT_SECTION("General"),
52 {"help", OPT_HELP, '-', "Display this summary"},
53 {"list", OPT_LIST, '-', "List digests"},
54 #ifndef OPENSSL_NO_ENGINE
55 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
56 {"engine_impl", OPT_ENGINE_IMPL, '-',
57 "Also use engine given by -engine for digest operations"},
59 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
61 OPT_SECTION("Output"),
62 {"c", OPT_C, '-', "Print the digest with separating colons"},
63 {"r", OPT_R, '-', "Print the digest in coreutils format"},
64 {"out", OPT_OUT, '>', "Output to filename rather than stdout"},
65 {"keyform", OPT_KEYFORM, 'f', "Key file format (PEM or ENGINE)"},
66 {"hex", OPT_HEX, '-', "Print as hex dump"},
67 {"binary", OPT_BINARY, '-', "Print in binary form"},
68 {"d", OPT_DEBUG, '-', "Print debug info"},
69 {"debug", OPT_DEBUG, '-', "Print debug info"},
71 OPT_SECTION("Signing"),
72 {"sign", OPT_SIGN, 's', "Sign digest using private key"},
73 {"verify", OPT_VERIFY, 's', "Verify a signature using public key"},
74 {"prverify", OPT_PRVERIFY, 's', "Verify a signature using private key"},
75 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
76 {"signature", OPT_SIGNATURE, '<', "File with signature to verify"},
77 {"hmac", OPT_HMAC, 's', "Create hashed MAC with key"},
78 {"mac", OPT_MAC, 's', "Create MAC (not necessarily HMAC)"},
79 {"macopt", OPT_MACOPT, 's', "MAC algorithm parameters in n:v form or key"},
80 {"", OPT_DIGEST, '-', "Any supported digest"},
81 {"fips-fingerprint", OPT_FIPS_FINGERPRINT, '-',
82 "Compute HMAC with the key used in OpenSSL-FIPS fingerprint"},
87 {"file", 0, 0, "Files to digest (optional; default is stdin)"},
91 int dgst_main(int argc, char **argv)
93 BIO *in = NULL, *inp, *bmd = NULL, *out = NULL;
94 ENGINE *e = NULL, *impl = NULL;
95 EVP_PKEY *sigkey = NULL;
96 STACK_OF(OPENSSL_STRING) *sigopts = NULL, *macopts = NULL;
97 char *hmac_key = NULL;
98 char *mac_name = NULL;
99 char *passinarg = NULL, *passin = NULL;
100 const EVP_MD *md = NULL, *m;
101 const char *outfile = NULL, *keyfile = NULL, *prog = NULL;
102 const char *sigfile = NULL;
103 const char *md_name = NULL;
105 int separator = 0, debug = 0, keyform = FORMAT_PEM, siglen = 0;
106 int i, ret = 1, out_bin = -1, want_pub = 0, do_verify = 0;
107 unsigned char *buf = NULL, *sigbuf = NULL;
109 struct doall_dgst_digests dec;
111 prog = opt_progname(argv[0]);
112 buf = app_malloc(BUFSIZE, "I/O buffer");
113 md = EVP_get_digestbyname(prog);
115 prog = opt_init(argc, argv, dgst_options);
116 while ((o = opt_next()) != OPT_EOF) {
121 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
124 opt_help(dgst_options);
128 BIO_printf(bio_out, "Supported digests:\n");
131 OBJ_NAME_do_all_sorted(OBJ_NAME_TYPE_MD_METH,
133 BIO_printf(bio_out, "\n");
153 passinarg = opt_arg();
157 want_pub = do_verify = 1;
167 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
171 e = setup_engine(opt_arg(), 0);
173 case OPT_ENGINE_IMPL:
185 case OPT_FIPS_FINGERPRINT:
186 hmac_key = "etaonrishdlcupfm";
189 hmac_key = opt_arg();
192 mac_name = opt_arg();
196 sigopts = sk_OPENSSL_STRING_new_null();
197 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
202 macopts = sk_OPENSSL_STRING_new_null();
203 if (!macopts || !sk_OPENSSL_STRING_push(macopts, opt_arg()))
207 if (!opt_md(opt_unknown(), &m))
213 argc = opt_num_rest();
215 if (keyfile != NULL && argc > 1) {
216 BIO_printf(bio_err, "%s: Can only sign or verify one file.\n", prog);
220 if (do_verify && sigfile == NULL) {
222 "No signature to verify: use the -signature option\n");
228 in = BIO_new(BIO_s_file());
229 bmd = BIO_new(BIO_f_md());
230 if ((in == NULL) || (bmd == NULL)) {
231 ERR_print_errors(bio_err);
236 BIO_set_callback(in, BIO_debug_callback);
237 /* needed for windows 3.1 */
238 BIO_set_callback_arg(in, (char *)bio_err);
241 if (!app_passwd(passinarg, NULL, &passin, NULL)) {
242 BIO_printf(bio_err, "Error getting password\n");
253 out = bio_open_default(outfile, 'w', out_bin ? FORMAT_BINARY : FORMAT_TEXT);
257 if ((!(mac_name == NULL) + !(keyfile == NULL) + !(hmac_key == NULL)) > 1) {
258 BIO_printf(bio_err, "MAC and Signing key cannot both be specified\n");
262 if (keyfile != NULL) {
266 sigkey = load_pubkey(keyfile, keyform, 0, NULL, e, "key file");
268 sigkey = load_key(keyfile, keyform, 0, passin, e, "key file");
269 if (sigkey == NULL) {
271 * load_[pub]key() has already printed an appropriate message
275 type = EVP_PKEY_id(sigkey);
276 if (type == EVP_PKEY_ED25519 || type == EVP_PKEY_ED448) {
278 * We implement PureEdDSA for these which doesn't have a separate
279 * digest, and only supports one shot.
281 BIO_printf(bio_err, "Key type not supported for this operation\n");
286 if (mac_name != NULL) {
287 EVP_PKEY_CTX *mac_ctx = NULL;
289 if (!init_gen_str(&mac_ctx, mac_name, impl, 0))
291 if (macopts != NULL) {
293 for (i = 0; i < sk_OPENSSL_STRING_num(macopts); i++) {
294 macopt = sk_OPENSSL_STRING_value(macopts, i);
295 if (pkey_ctrl_string(mac_ctx, macopt) <= 0) {
297 "MAC parameter error \"%s\"\n", macopt);
298 ERR_print_errors(bio_err);
303 if (EVP_PKEY_keygen(mac_ctx, &sigkey) <= 0) {
304 BIO_puts(bio_err, "Error generating key\n");
305 ERR_print_errors(bio_err);
310 EVP_PKEY_CTX_free(mac_ctx);
315 if (hmac_key != NULL) {
316 sigkey = EVP_PKEY_new_raw_private_key(EVP_PKEY_HMAC, impl,
317 (unsigned char *)hmac_key, -1);
322 if (sigkey != NULL) {
323 EVP_MD_CTX *mctx = NULL;
324 EVP_PKEY_CTX *pctx = NULL;
326 if (!BIO_get_md_ctx(bmd, &mctx)) {
327 BIO_printf(bio_err, "Error getting context\n");
328 ERR_print_errors(bio_err);
332 r = EVP_DigestVerifyInit(mctx, &pctx, md, impl, sigkey);
334 r = EVP_DigestSignInit(mctx, &pctx, md, impl, sigkey);
336 BIO_printf(bio_err, "Error setting context\n");
337 ERR_print_errors(bio_err);
340 if (sigopts != NULL) {
342 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
343 sigopt = sk_OPENSSL_STRING_value(sigopts, i);
344 if (pkey_ctrl_string(pctx, sigopt) <= 0) {
345 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
346 ERR_print_errors(bio_err);
352 /* we use md as a filter, reading from 'in' */
354 EVP_MD_CTX *mctx = NULL;
355 if (!BIO_get_md_ctx(bmd, &mctx)) {
356 BIO_printf(bio_err, "Error getting context\n");
357 ERR_print_errors(bio_err);
362 if (!EVP_DigestInit_ex(mctx, md, impl)) {
363 BIO_printf(bio_err, "Error setting digest\n");
364 ERR_print_errors(bio_err);
369 if (sigfile != NULL && sigkey != NULL) {
370 BIO *sigbio = BIO_new_file(sigfile, "rb");
371 if (sigbio == NULL) {
372 BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
373 ERR_print_errors(bio_err);
376 siglen = EVP_PKEY_size(sigkey);
377 sigbuf = app_malloc(siglen, "signature buffer");
378 siglen = BIO_read(sigbio, sigbuf, siglen);
381 BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
382 ERR_print_errors(bio_err);
386 inp = BIO_push(bmd, in);
390 BIO_get_md_ctx(bmd, &tctx);
391 md = EVP_MD_CTX_md(tctx);
394 md_name = EVP_MD_name(md);
397 BIO_set_fp(in, stdin, BIO_NOCLOSE);
398 ret = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
399 siglen, NULL, md_name, "stdin");
401 const char *sig_name = NULL;
403 if (sigkey != NULL) {
404 const EVP_PKEY_ASN1_METHOD *ameth;
405 ameth = EVP_PKEY_get0_asn1(sigkey);
407 EVP_PKEY_asn1_get0_info(NULL, NULL,
408 NULL, NULL, &sig_name, ameth);
412 for (i = 0; i < argc; i++) {
414 if (BIO_read_filename(in, argv[i]) <= 0) {
419 r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
420 siglen, sig_name, md_name, argv[i]);
424 (void)BIO_reset(bmd);
428 OPENSSL_clear_free(buf, BUFSIZE);
430 OPENSSL_free(passin);
432 EVP_PKEY_free(sigkey);
433 sk_OPENSSL_STRING_free(sigopts);
434 sk_OPENSSL_STRING_free(macopts);
435 OPENSSL_free(sigbuf);
441 static void show_digests(const OBJ_NAME *name, void *arg)
443 struct doall_dgst_digests *dec = (struct doall_dgst_digests *)arg;
444 const EVP_MD *md = NULL;
446 /* Filter out signed digests (a.k.a signature algorithms) */
447 if (strstr(name->name, "rsa") != NULL || strstr(name->name, "RSA") != NULL)
450 if (!islower((unsigned char)*name->name))
453 /* Filter out message digests that we cannot use */
454 md = EVP_get_digestbyname(name->name);
458 BIO_printf(dec->bio, "-%-25s", name->name);
460 BIO_printf(dec->bio, "\n");
463 BIO_printf(dec->bio, " ");
468 * The newline_escape_filename function performs newline escaping for any
469 * filename that contains a newline. This function also takes a pointer
470 * to backslash. The backslash pointer is a flag to indicating whether a newline
471 * is present in the filename. If a newline is present, the backslash flag is
472 * set and the output format will contain a backslash at the beginning of the
473 * digest output. This output format is to replicate the output format found
474 * in the '*sum' checksum programs. This aims to preserve backward
477 static const char *newline_escape_filename(const char *file, int * backslash)
479 size_t i, e = 0, length = strlen(file), newline_count = 0, mem_len = 0;
480 char *file_cpy = NULL;
482 for (i = 0; i < length; i++)
486 mem_len = length + newline_count + 1;
487 file_cpy = app_malloc(mem_len, file);
491 const char c = file[e];
493 file_cpy[i++] = '\\';
502 return (const char*)file_cpy;
506 int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
507 EVP_PKEY *key, unsigned char *sigin, int siglen,
508 const char *sig_name, const char *md_name,
511 size_t len = BUFSIZE;
512 int i, backslash = 0, ret = 1;
513 unsigned char *sigbuf = NULL;
515 while (BIO_pending(bp) || !BIO_eof(bp)) {
516 i = BIO_read(bp, (char *)buf, BUFSIZE);
518 BIO_printf(bio_err, "Read Error in %s\n", file);
519 ERR_print_errors(bio_err);
527 BIO_get_md_ctx(bp, &ctx);
528 i = EVP_DigestVerifyFinal(ctx, sigin, (unsigned int)siglen);
530 BIO_printf(out, "Verified OK\n");
532 BIO_printf(out, "Verification Failure\n");
535 BIO_printf(bio_err, "Error Verifying Data\n");
536 ERR_print_errors(bio_err);
546 BIO_get_md_ctx(bp, &ctx);
547 if (!EVP_DigestSignFinal(ctx, NULL, &tmplen)) {
548 BIO_printf(bio_err, "Error Signing Data\n");
549 ERR_print_errors(bio_err);
552 if (tmplen > BUFSIZE) {
554 sigbuf = app_malloc(len, "Signature buffer");
557 if (!EVP_DigestSignFinal(ctx, buf, &len)) {
558 BIO_printf(bio_err, "Error Signing Data\n");
559 ERR_print_errors(bio_err);
563 len = BIO_gets(bp, (char *)buf, BUFSIZE);
565 ERR_print_errors(bio_err);
571 BIO_write(out, buf, len);
572 } else if (sep == 2) {
573 file = newline_escape_filename(file, &backslash);
578 for (i = 0; i < (int)len; i++)
579 BIO_printf(out, "%02x", buf[i]);
581 BIO_printf(out, " *%s\n", file);
582 OPENSSL_free((char *)file);
584 if (sig_name != NULL) {
585 BIO_puts(out, sig_name);
587 BIO_printf(out, "-%s", md_name);
588 BIO_printf(out, "(%s)= ", file);
589 } else if (md_name != NULL) {
590 BIO_printf(out, "%s(%s)= ", md_name, file);
592 BIO_printf(out, "(%s)= ", file);
594 for (i = 0; i < (int)len; i++) {
596 BIO_printf(out, ":");
597 BIO_printf(out, "%02x", buf[i]);
599 BIO_printf(out, "\n");
605 OPENSSL_clear_free(sigbuf, len);