2 * Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
63 #include <openssl/bio.h>
64 #include <openssl/err.h>
65 #include <openssl/pem.h>
66 #include <openssl/rand.h>
67 #include <openssl/ts.h>
68 #include <openssl/bn.h>
70 /* Length of the nonce of the request in bits (must be a multiple of 8). */
71 #define NONCE_LENGTH 64
73 /* Macro definitions for the configuration file. */
74 #define ENV_OID_FILE "oid_file"
76 /* Local function declarations. */
78 static ASN1_OBJECT *txt2obj(const char *oid);
79 static CONF *load_config_file(const char *configfile);
81 /* Query related functions. */
82 static int query_command(const char *data, char *digest,
83 const EVP_MD *md, const char *policy, int no_nonce,
84 int cert, const char *in, const char *out, int text);
85 static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
86 const char *policy, int no_nonce, int cert);
87 static int create_digest(BIO *input, char *digest,
88 const EVP_MD *md, unsigned char **md_value);
89 static ASN1_INTEGER *create_nonce(int bits);
91 /* Reply related functions. */
92 static int reply_command(CONF *conf, char *section, char *engine,
93 char *queryfile, char *passin, char *inkey,
94 char *signer, char *chain, const char *policy,
95 char *in, int token_in, char *out, int token_out,
97 static TS_RESP *read_PKCS7(BIO *in_bio);
98 static TS_RESP *create_response(CONF *conf, const char *section, char *engine,
99 char *queryfile, char *passin,
100 char *inkey, char *signer, char *chain,
102 static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data);
103 static ASN1_INTEGER *next_serial(const char *serialfile);
104 static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial);
106 /* Verify related functions. */
107 static int verify_command(char *data, char *digest, char *queryfile,
108 char *in, int token_in,
109 char *CApath, char *CAfile, char *untrusted);
110 static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
112 char *CApath, char *CAfile,
114 static X509_STORE *create_cert_store(char *CApath, char *CAfile);
115 static int verify_cb(int ok, X509_STORE_CTX *ctx);
117 typedef enum OPTION_choice {
118 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
119 OPT_ENGINE, OPT_CONFIG, OPT_SECTION, OPT_QUERY, OPT_DATA,
120 OPT_DIGEST, OPT_RAND, OPT_POLICY, OPT_NO_NONCE, OPT_CERT,
121 OPT_IN, OPT_TOKEN_IN, OPT_OUT, OPT_TOKEN_OUT, OPT_TEXT,
122 OPT_REPLY, OPT_QUERYFILE, OPT_PASSIN, OPT_INKEY, OPT_SIGNER,
123 OPT_CHAIN, OPT_VERIFY, OPT_CAPATH, OPT_CAFILE, OPT_UNTRUSTED,
127 OPTIONS ts_options[] = {
128 {"help", OPT_HELP, '-', "Display this summary"},
129 {"config", OPT_CONFIG, '<', "Configuration file"},
130 {"section", OPT_SECTION, 's', "Section to use within config file"},
131 {"query", OPT_QUERY, '-', "Generate a TS query"},
132 {"data", OPT_DATA, '<', "File to hash"},
133 {"digest", OPT_DIGEST, 's', "Digest (as a hex string)"},
134 {"rand", OPT_RAND, 's',
135 "Load the file(s) into the random number generator"},
136 {"policy", OPT_POLICY, 's', "Policy OID to use"},
137 {"no_nonce", OPT_NO_NONCE, '-', "Do not include a nonce"},
138 {"cert", OPT_CERT, '-', "Put cert request into query"},
139 {"in", OPT_IN, '<', "Input file"},
140 {"token_in", OPT_TOKEN_IN, '-', "Input is a PKCS#7 file"},
141 {"out", OPT_OUT, '>', "Output file"},
142 {"token_out", OPT_TOKEN_OUT, '-', "Output is a PKCS#7 file"},
143 {"text", OPT_TEXT, '-', "Output text (not DER)"},
144 {"reply", OPT_REPLY, '-', "Generate a TS reply"},
145 {"queryfile", OPT_QUERYFILE, '<', "File containing a TS query"},
146 {"passin", OPT_PASSIN, 's'},
147 {"inkey", OPT_INKEY, '<', "File with private key for reply"},
148 {"signer", OPT_SIGNER, 's'},
149 {"chain", OPT_CHAIN, '<', "File with signer CA chain"},
150 {"verify", OPT_VERIFY, '-', "Verify a TS response"},
151 {"CApath", OPT_CAPATH, '/', "Path to trusted CA files"},
152 {"CAfile", OPT_CAFILE, '<', "File with trusted CA certs"},
153 {"untrusted", OPT_UNTRUSTED, '<', "File with untrusted certs"},
154 #ifndef OPENSSL_NO_ENGINE
155 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
157 {"", OPT_MD, '-', "Any supported digest"},
162 * This comand is so complex, special help is needed.
164 static char* opt_helplist[] = {
166 "ts -query [-rand file...] [-config file] [-data file]",
167 " [-digest hexstring] [-policy oid] [-no_nonce] [-cert]",
168 " [-in file] [-out file] [-text]",
170 "ts -reply [-config file] [-section tsa_section]",
171 " [-queryfile file] [-passin password]",
172 " [-signer tsa_cert.pem] [-inkey private_key.pem]",
173 " [-chain certs_file.pem] [-policy oid]",
174 " [-in file] [-token_in] [-out file] [-token_out]",
175 #ifndef OPENSSL_NO_ENGINE
178 " [-text] [-engine id]",
181 "ts -verify -CApath dir -CAfile file.pem -untrusted file.pem",
182 " [-data file] [-digest hexstring]",
183 " [-queryfile file] -in file [-token_in]",
187 int ts_main(int argc, char **argv)
190 char *CAfile = NULL, *untrusted = NULL, *engine = NULL, *prog, **helpp;
191 char *configfile = NULL, *section = NULL, *password = NULL;
192 char *data = NULL, *digest = NULL, *rnd = NULL, *policy = NULL;
193 char *in = NULL, *out = NULL, *queryfile = NULL, *passin = NULL;
194 char *inkey = NULL, *signer = NULL, *chain = NULL, *CApath = NULL;
195 const EVP_MD *md = NULL;
196 OPTION_CHOICE o, mode = OPT_ERR;
197 int ret = 1, no_nonce = 0, cert = 0, text = 0;
198 /* Input is ContentInfo instead of TimeStampResp. */
200 /* Output is ContentInfo instead of TimeStampResp. */
203 prog = opt_init(argc, argv, ts_options);
204 while ((o = opt_next()) != OPT_EOF) {
209 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
212 opt_help(ts_options);
213 for (helpp = opt_helplist; *helpp; ++helpp)
214 BIO_printf(bio_err, "%s\n", *helpp);
218 configfile = opt_arg();
264 queryfile = opt_arg();
285 untrusted = opt_arg();
291 if (!opt_md(opt_unknown(), &md))
296 argc = opt_num_rest();
298 if (mode == OPT_ERR || argc != 0)
301 /* Seed the random number generator if it is going to be used. */
302 if (mode == OPT_QUERY && !no_nonce) {
303 if (!app_RAND_load_file(NULL, 1) && rnd == NULL)
304 BIO_printf(bio_err, "warning, not much extra random "
305 "data, consider using the -rand option\n");
307 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
308 app_RAND_load_files(rnd));
311 /* Get the password if required. */
312 if (mode == OPT_REPLY && passin &&
313 !app_passwd(passin, NULL, &password, NULL)) {
314 BIO_printf(bio_err, "Error getting password.\n");
319 * Check consistency of parameters and execute the appropriate function.
327 * Data file and message imprint cannot be specified at the same
330 ret = data != NULL && digest != NULL;
333 /* Load the config file for possible policy OIDs. */
334 conf = load_config_file(configfile);
335 ret = !query_command(data, digest, md, policy, no_nonce, cert,
339 conf = load_config_file(configfile);
341 ret = !(queryfile != NULL && conf != NULL && !token_in);
345 /* 'in' and 'queryfile' are exclusive. */
346 ret = !(queryfile == NULL);
350 ret = !reply_command(conf, section, engine, queryfile,
351 password, inkey, signer, chain, policy,
352 in, token_in, out, token_out, text);
355 ret = !(((queryfile && !data && !digest)
356 || (!queryfile && data && !digest)
357 || (!queryfile && !data && digest))
362 ret = !verify_command(data, digest, queryfile, in, token_in,
363 CApath, CAfile, untrusted);
368 app_RAND_write_file(NULL);
370 OPENSSL_free(password);
377 * Configuration file-related function definitions.
380 static ASN1_OBJECT *txt2obj(const char *oid)
382 ASN1_OBJECT *oid_obj = NULL;
384 if (!(oid_obj = OBJ_txt2obj(oid, 0)))
385 BIO_printf(bio_err, "cannot convert %s to OID\n", oid);
390 static CONF *load_config_file(const char *configfile)
396 configfile = getenv("OPENSSL_CONF");
398 configfile = getenv("SSLEAY_CONF");
401 (!(conf = NCONF_new(NULL)) ||
402 NCONF_load(conf, configfile, &errorline) <= 0)) {
404 BIO_printf(bio_err, "error loading the config file "
405 "'%s'\n", configfile);
407 BIO_printf(bio_err, "error on line %ld of config file "
408 "'%s'\n", errorline, configfile);
414 BIO_printf(bio_err, "Using configuration from %s\n", configfile);
415 p = NCONF_get_string(conf, NULL, ENV_OID_FILE);
417 BIO *oid_bio = BIO_new_file(p, "r");
419 ERR_print_errors(bio_err);
421 OBJ_create_objects(oid_bio);
422 BIO_free_all(oid_bio);
426 if (!add_oid_section(conf))
427 ERR_print_errors(bio_err);
433 * Query-related method definitions.
435 static int query_command(const char *data, char *digest, const EVP_MD *md,
436 const char *policy, int no_nonce,
437 int cert, const char *in, const char *out, int text)
440 TS_REQ *query = NULL;
442 BIO *data_bio = NULL;
445 /* Build query object either from file or from scratch. */
447 if ((in_bio = BIO_new_file(in, "rb")) == NULL)
449 query = d2i_TS_REQ_bio(in_bio, NULL);
451 /* Open the file if no explicit digest bytes were specified. */
452 if (!digest && !(data_bio = bio_open_default(data, "rb")))
454 query = create_query(data_bio, digest, md, policy, no_nonce, cert);
459 /* Write query either in ASN.1 or in text format. */
460 if ((out_bio = bio_open_default(out, "wb")) == NULL)
464 if (!TS_REQ_print_bio(out_bio, query))
468 if (!i2d_TS_REQ_bio(out_bio, query))
475 ERR_print_errors(bio_err);
478 BIO_free_all(in_bio);
479 BIO_free_all(data_bio);
480 BIO_free_all(out_bio);
486 static TS_REQ *create_query(BIO *data_bio, char *digest, const EVP_MD *md,
487 const char *policy, int no_nonce, int cert)
490 TS_REQ *ts_req = NULL;
492 TS_MSG_IMPRINT *msg_imprint = NULL;
493 X509_ALGOR *algo = NULL;
494 unsigned char *data = NULL;
495 ASN1_OBJECT *policy_obj = NULL;
496 ASN1_INTEGER *nonce_asn1 = NULL;
498 /* Setting default message digest. */
499 if (!md && !(md = EVP_get_digestbyname("sha1")))
502 /* Creating request object. */
503 if (!(ts_req = TS_REQ_new()))
506 /* Setting version. */
507 if (!TS_REQ_set_version(ts_req, 1))
510 /* Creating and adding MSG_IMPRINT object. */
511 if (!(msg_imprint = TS_MSG_IMPRINT_new()))
514 /* Adding algorithm. */
515 if (!(algo = X509_ALGOR_new()))
517 if (!(algo->algorithm = OBJ_nid2obj(EVP_MD_type(md))))
519 if (!(algo->parameter = ASN1_TYPE_new()))
521 algo->parameter->type = V_ASN1_NULL;
522 if (!TS_MSG_IMPRINT_set_algo(msg_imprint, algo))
525 /* Adding message digest. */
526 if ((len = create_digest(data_bio, digest, md, &data)) == 0)
528 if (!TS_MSG_IMPRINT_set_msg(msg_imprint, data, len))
531 if (!TS_REQ_set_msg_imprint(ts_req, msg_imprint))
534 /* Setting policy if requested. */
535 if (policy && !(policy_obj = txt2obj(policy)))
537 if (policy_obj && !TS_REQ_set_policy_id(ts_req, policy_obj))
540 /* Setting nonce if requested. */
541 if (!no_nonce && !(nonce_asn1 = create_nonce(NONCE_LENGTH)))
543 if (nonce_asn1 && !TS_REQ_set_nonce(ts_req, nonce_asn1))
546 /* Setting certificate request flag if requested. */
547 if (!TS_REQ_set_cert_req(ts_req, cert))
555 BIO_printf(bio_err, "could not create query\n");
557 TS_MSG_IMPRINT_free(msg_imprint);
558 X509_ALGOR_free(algo);
560 ASN1_OBJECT_free(policy_obj);
561 ASN1_INTEGER_free(nonce_asn1);
565 static int create_digest(BIO *input, char *digest, const EVP_MD *md,
566 unsigned char **md_value)
570 md_value_len = EVP_MD_size(md);
571 if (md_value_len < 0)
574 /* Digest must be computed from an input file. */
576 unsigned char buffer[4096];
579 *md_value = OPENSSL_malloc(md_value_len);
583 EVP_DigestInit(&md_ctx, md);
584 while ((length = BIO_read(input, buffer, sizeof(buffer))) > 0) {
585 EVP_DigestUpdate(&md_ctx, buffer, length);
587 if (!EVP_DigestFinal(&md_ctx, *md_value, NULL))
590 /* Digest bytes are specified with digest. */
592 *md_value = string_to_hex(digest, &digest_len);
593 if (!*md_value || md_value_len != digest_len) {
594 OPENSSL_free(*md_value);
596 BIO_printf(bio_err, "bad digest, %d bytes "
597 "must be specified\n", md_value_len);
607 static ASN1_INTEGER *create_nonce(int bits)
609 unsigned char buf[20];
610 ASN1_INTEGER *nonce = NULL;
611 int len = (bits - 1) / 8 + 1;
614 /* Generating random byte sequence. */
615 if (len > (int)sizeof(buf))
617 if (RAND_bytes(buf, len) <= 0)
620 /* Find the first non-zero byte and creating ASN1_INTEGER object. */
621 for (i = 0; i < len && !buf[i]; ++i) ;
622 if (!(nonce = ASN1_INTEGER_new()))
624 OPENSSL_free(nonce->data);
625 /* Allocate at least one byte. */
626 nonce->length = len - i;
627 if (!(nonce->data = OPENSSL_malloc(nonce->length + 1)))
629 memcpy(nonce->data, buf + i, nonce->length);
633 BIO_printf(bio_err, "could not create nonce\n");
634 ASN1_INTEGER_free(nonce);
639 * Reply-related method definitions.
642 static int reply_command(CONF *conf, char *section, char *engine,
643 char *queryfile, char *passin, char *inkey,
644 char *signer, char *chain, const char *policy,
645 char *in, int token_in,
646 char *out, int token_out, int text)
649 TS_RESP *response = NULL;
651 BIO *query_bio = NULL;
652 BIO *inkey_bio = NULL;
653 BIO *signer_bio = NULL;
656 /* Build response object either from response or query. */
658 if ((in_bio = BIO_new_file(in, "rb")) == NULL)
662 * We have a ContentInfo (PKCS7) object, add 'granted' status
665 response = read_PKCS7(in_bio);
667 /* We have a ready-made TS_RESP object. */
668 response = d2i_TS_RESP_bio(in_bio, NULL);
671 response = create_response(conf, section, engine, queryfile,
672 passin, inkey, signer, chain, policy);
674 BIO_printf(bio_err, "Response has been generated.\n");
676 BIO_printf(bio_err, "Response is not generated.\n");
678 if (response == NULL)
681 /* Write response either in ASN.1 or text format. */
682 if ((out_bio = bio_open_default(out, "wb")) == NULL)
687 TS_TST_INFO *tst_info = TS_RESP_get_tst_info(response);
688 if (!TS_TST_INFO_print_bio(out_bio, tst_info))
691 if (!TS_RESP_print_bio(out_bio, response))
695 /* ASN.1 DER output. */
697 PKCS7 *token = TS_RESP_get_token(response);
698 if (!i2d_PKCS7_bio(out_bio, token))
701 if (!i2d_TS_RESP_bio(out_bio, response))
709 ERR_print_errors(bio_err);
712 BIO_free_all(in_bio);
713 BIO_free_all(query_bio);
714 BIO_free_all(inkey_bio);
715 BIO_free_all(signer_bio);
716 BIO_free_all(out_bio);
717 TS_RESP_free(response);
722 /* Reads a PKCS7 token and adds default 'granted' status info to it. */
723 static TS_RESP *read_PKCS7(BIO *in_bio)
727 TS_TST_INFO *tst_info = NULL;
728 TS_RESP *resp = NULL;
729 TS_STATUS_INFO *si = NULL;
731 /* Read PKCS7 object and extract the signed time stamp info. */
732 if (!(token = d2i_PKCS7_bio(in_bio, NULL)))
734 if (!(tst_info = PKCS7_to_TS_TST_INFO(token)))
737 /* Creating response object. */
738 if (!(resp = TS_RESP_new()))
741 /* Create granted status info. */
742 if (!(si = TS_STATUS_INFO_new()))
744 if (!(ASN1_INTEGER_set(si->status, TS_STATUS_GRANTED)))
746 if (!TS_RESP_set_status_info(resp, si))
749 /* Setting encapsulated token. */
750 TS_RESP_set_tst_info(resp, token, tst_info);
751 token = NULL; /* Ownership is lost. */
752 tst_info = NULL; /* Ownership is lost. */
757 TS_TST_INFO_free(tst_info);
762 TS_STATUS_INFO_free(si);
766 static TS_RESP *create_response(CONF *conf, const char *section, char *engine,
767 char *queryfile, char *passin,
768 char *inkey, char *signer, char *chain,
772 TS_RESP *response = NULL;
773 BIO *query_bio = NULL;
774 TS_RESP_CTX *resp_ctx = NULL;
776 if (!(query_bio = BIO_new_file(queryfile, "rb")))
779 /* Getting TSA configuration section. */
780 if (!(section = TS_CONF_get_tsa_section(conf, section)))
783 /* Setting up response generation context. */
784 if (!(resp_ctx = TS_RESP_CTX_new()))
787 /* Setting serial number provider callback. */
788 if (!TS_CONF_set_serial(conf, section, serial_cb, resp_ctx))
790 #ifndef OPENSSL_NO_ENGINE
791 /* Setting default OpenSSL engine. */
792 if (!TS_CONF_set_crypto_device(conf, section, engine))
796 /* Setting TSA signer certificate. */
797 if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))
800 /* Setting TSA signer certificate chain. */
801 if (!TS_CONF_set_certs(conf, section, chain, resp_ctx))
804 /* Setting TSA signer private key. */
805 if (!TS_CONF_set_signer_key(conf, section, inkey, passin, resp_ctx))
808 /* Setting default policy OID. */
809 if (!TS_CONF_set_def_policy(conf, section, policy, resp_ctx))
812 /* Setting acceptable policy OIDs. */
813 if (!TS_CONF_set_policies(conf, section, resp_ctx))
816 /* Setting the acceptable one-way hash algorithms. */
817 if (!TS_CONF_set_digests(conf, section, resp_ctx))
820 /* Setting guaranteed time stamp accuracy. */
821 if (!TS_CONF_set_accuracy(conf, section, resp_ctx))
824 /* Setting the precision of the time. */
825 if (!TS_CONF_set_clock_precision_digits(conf, section, resp_ctx))
828 /* Setting the ordering flaf if requested. */
829 if (!TS_CONF_set_ordering(conf, section, resp_ctx))
832 /* Setting the TSA name required flag if requested. */
833 if (!TS_CONF_set_tsa_name(conf, section, resp_ctx))
836 /* Setting the ESS cert id chain flag if requested. */
837 if (!TS_CONF_set_ess_cert_id_chain(conf, section, resp_ctx))
840 /* Creating the response. */
841 if (!(response = TS_RESP_create_response(resp_ctx, query_bio)))
847 TS_RESP_free(response);
850 TS_RESP_CTX_free(resp_ctx);
851 BIO_free_all(query_bio);
856 static ASN1_INTEGER *serial_cb(TS_RESP_CTX *ctx, void *data)
858 const char *serial_file = (const char *)data;
859 ASN1_INTEGER *serial = next_serial(serial_file);
862 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
863 "Error during serial number "
865 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_ADD_INFO_NOT_AVAILABLE);
867 save_ts_serial(serial_file, serial);
872 static ASN1_INTEGER *next_serial(const char *serialfile)
876 ASN1_INTEGER *serial = NULL;
879 if (!(serial = ASN1_INTEGER_new()))
882 if (!(in = BIO_new_file(serialfile, "r"))) {
884 BIO_printf(bio_err, "Warning: could not open file %s for "
885 "reading, using serial number: 1\n", serialfile);
886 if (!ASN1_INTEGER_set(serial, 1))
890 if (!a2i_ASN1_INTEGER(in, serial, buf, sizeof(buf))) {
891 BIO_printf(bio_err, "unable to load number from %s\n",
895 if (!(bn = ASN1_INTEGER_to_BN(serial, NULL)))
897 ASN1_INTEGER_free(serial);
899 if (!BN_add_word(bn, 1))
901 if (!(serial = BN_to_ASN1_INTEGER(bn, NULL)))
907 ASN1_INTEGER_free(serial);
915 static int save_ts_serial(const char *serialfile, ASN1_INTEGER *serial)
920 if (!(out = BIO_new_file(serialfile, "w")))
922 if (i2a_ASN1_INTEGER(out, serial) <= 0)
924 if (BIO_puts(out, "\n") <= 0)
929 BIO_printf(bio_err, "could not save serial number to %s\n",
936 * Verify-related method definitions.
939 static int verify_command(char *data, char *digest, char *queryfile,
940 char *in, int token_in,
941 char *CApath, char *CAfile, char *untrusted)
945 TS_RESP *response = NULL;
946 TS_VERIFY_CTX *verify_ctx = NULL;
949 /* Decode the token (PKCS7) or response (TS_RESP) files. */
950 if (!(in_bio = BIO_new_file(in, "rb")))
953 if (!(token = d2i_PKCS7_bio(in_bio, NULL)))
956 if (!(response = d2i_TS_RESP_bio(in_bio, NULL)))
960 if (!(verify_ctx = create_verify_ctx(data, digest, queryfile,
961 CApath, CAfile, untrusted)))
964 /* Checking the token or response against the request. */
966 TS_RESP_verify_token(verify_ctx, token) :
967 TS_RESP_verify_response(verify_ctx, response);
970 printf("Verification: ");
975 /* Print errors, if there are any. */
976 ERR_print_errors(bio_err);
980 BIO_free_all(in_bio);
982 TS_RESP_free(response);
983 TS_VERIFY_CTX_free(verify_ctx);
987 static TS_VERIFY_CTX *create_verify_ctx(char *data, char *digest,
989 char *CApath, char *CAfile,
992 TS_VERIFY_CTX *ctx = NULL;
994 TS_REQ *request = NULL;
997 if (data != NULL || digest != NULL) {
998 if (!(ctx = TS_VERIFY_CTX_new()))
1000 ctx->flags = TS_VFY_VERSION | TS_VFY_SIGNER;
1002 ctx->flags |= TS_VFY_DATA;
1003 if (!(ctx->data = BIO_new_file(data, "rb")))
1005 } else if (digest != NULL) {
1007 ctx->flags |= TS_VFY_IMPRINT;
1008 if (!(ctx->imprint = string_to_hex(digest, &imprint_len))) {
1009 BIO_printf(bio_err, "invalid digest string\n");
1012 ctx->imprint_len = imprint_len;
1015 } else if (queryfile != NULL) {
1017 * The request has just to be read, decoded and converted to a verify
1020 if (!(input = BIO_new_file(queryfile, "rb")))
1022 if (!(request = d2i_TS_REQ_bio(input, NULL)))
1024 if (!(ctx = TS_REQ_to_TS_VERIFY_CTX(request, NULL)))
1029 /* Add the signature verification flag and arguments. */
1030 ctx->flags |= TS_VFY_SIGNATURE;
1032 /* Initialising the X509_STORE object. */
1033 if (!(ctx->store = create_cert_store(CApath, CAfile)))
1036 /* Loading untrusted certificates. */
1037 if (untrusted && !(ctx->certs = TS_CONF_load_certs(untrusted)))
1043 TS_VERIFY_CTX_free(ctx);
1046 BIO_free_all(input);
1047 TS_REQ_free(request);
1051 static X509_STORE *create_cert_store(char *CApath, char *CAfile)
1053 X509_STORE *cert_ctx = NULL;
1054 X509_LOOKUP *lookup = NULL;
1057 /* Creating the X509_STORE object. */
1058 cert_ctx = X509_STORE_new();
1060 /* Setting the callback for certificate chain verification. */
1061 X509_STORE_set_verify_cb(cert_ctx, verify_cb);
1063 /* Adding a trusted certificate directory source. */
1065 lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir());
1066 if (lookup == NULL) {
1067 BIO_printf(bio_err, "memory allocation failure\n");
1070 i = X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM);
1072 BIO_printf(bio_err, "Error loading directory %s\n", CApath);
1077 /* Adding a trusted certificate file source. */
1079 lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
1080 if (lookup == NULL) {
1081 BIO_printf(bio_err, "memory allocation failure\n");
1084 i = X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM);
1086 BIO_printf(bio_err, "Error loading file %s\n", CAfile);
1093 X509_STORE_free(cert_ctx);
1097 static int verify_cb(int ok, X509_STORE_CTX *ctx)