2 * Copyright 2006-2018 The OpenSSL Project Authors. All Rights Reserved.
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
10 #include "internal/cryptlib.h"
12 #if defined(OPENSSL_SYS_UNIX)
13 # include <sys/time.h>
16 #include <openssl/objects.h>
17 #include <openssl/ts.h>
18 #include <openssl/pkcs7.h>
19 #include <openssl/crypto.h>
22 static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *);
23 static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec);
24 static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *);
26 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx);
27 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx);
28 static int ts_RESP_check_request(TS_RESP_CTX *ctx);
29 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx);
30 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
32 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx);
33 static int ts_RESP_sign(TS_RESP_CTX *ctx);
35 static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert,
36 STACK_OF(X509) *certs);
37 static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed);
38 static int ts_TST_INFO_content_new(PKCS7 *p7);
39 static int ESS_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc);
41 static ASN1_GENERALIZEDTIME
42 *TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *, long, long,
45 /* Default callback for response generation. */
46 static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *ctx, void *data)
48 ASN1_INTEGER *serial = ASN1_INTEGER_new();
52 if (!ASN1_INTEGER_set(serial, 1))
57 TSerr(TS_F_DEF_SERIAL_CB, ERR_R_MALLOC_FAILURE);
58 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
59 "Error during serial number generation.");
63 #if defined(OPENSSL_SYS_UNIX)
65 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
66 long *sec, long *usec)
69 if (gettimeofday(&tv, NULL) != 0) {
70 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
71 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
72 "Time is not available.");
73 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
84 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
85 long *sec, long *usec)
88 if (time(&t) == (time_t)-1) {
89 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
90 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
91 "Time is not available.");
92 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
103 static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
106 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
107 "Unsupported extension.");
108 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION);
112 /* TS_RESP_CTX management functions. */
114 TS_RESP_CTX *TS_RESP_CTX_new()
118 if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
119 TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE);
123 ctx->signer_md = EVP_sha256();
125 ctx->serial_cb = def_serial_cb;
126 ctx->time_cb = def_time_cb;
127 ctx->extension_cb = def_extension_cb;
132 void TS_RESP_CTX_free(TS_RESP_CTX *ctx)
137 X509_free(ctx->signer_cert);
138 EVP_PKEY_free(ctx->signer_key);
139 sk_X509_pop_free(ctx->certs, X509_free);
140 sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free);
141 ASN1_OBJECT_free(ctx->default_policy);
142 sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */
143 ASN1_INTEGER_free(ctx->seconds);
144 ASN1_INTEGER_free(ctx->millis);
145 ASN1_INTEGER_free(ctx->micros);
149 int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer)
151 if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) {
152 TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT,
153 TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE);
156 X509_free(ctx->signer_cert);
157 ctx->signer_cert = signer;
158 X509_up_ref(ctx->signer_cert);
162 int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key)
164 EVP_PKEY_free(ctx->signer_key);
165 ctx->signer_key = key;
166 EVP_PKEY_up_ref(ctx->signer_key);
171 int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
177 int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy)
179 ASN1_OBJECT_free(ctx->default_policy);
180 if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL)
184 TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE);
188 int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs)
191 sk_X509_pop_free(ctx->certs, X509_free);
195 if ((ctx->certs = X509_chain_up_ref(certs)) == NULL) {
196 TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE);
203 int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy)
205 ASN1_OBJECT *copy = NULL;
207 if (ctx->policies == NULL
208 && (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL)
210 if ((copy = OBJ_dup(policy)) == NULL)
212 if (!sk_ASN1_OBJECT_push(ctx->policies, copy))
217 TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE);
218 ASN1_OBJECT_free(copy);
222 int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md)
225 && (ctx->mds = sk_EVP_MD_new_null()) == NULL)
227 if (!sk_EVP_MD_push(ctx->mds, md))
232 TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE);
236 #define TS_RESP_CTX_accuracy_free(ctx) \
237 ASN1_INTEGER_free(ctx->seconds); \
238 ctx->seconds = NULL; \
239 ASN1_INTEGER_free(ctx->millis); \
240 ctx->millis = NULL; \
241 ASN1_INTEGER_free(ctx->micros); \
244 int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
245 int secs, int millis, int micros)
248 TS_RESP_CTX_accuracy_free(ctx);
250 && ((ctx->seconds = ASN1_INTEGER_new()) == NULL
251 || !ASN1_INTEGER_set(ctx->seconds, secs)))
254 && ((ctx->millis = ASN1_INTEGER_new()) == NULL
255 || !ASN1_INTEGER_set(ctx->millis, millis)))
258 && ((ctx->micros = ASN1_INTEGER_new()) == NULL
259 || !ASN1_INTEGER_set(ctx->micros, micros)))
264 TS_RESP_CTX_accuracy_free(ctx);
265 TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE);
269 void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags)
274 void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data)
277 ctx->serial_cb_data = data;
280 void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data)
283 ctx->time_cb_data = data;
286 void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
287 TS_extension_cb cb, void *data)
289 ctx->extension_cb = cb;
290 ctx->extension_cb_data = data;
293 int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
294 int status, const char *text)
296 TS_STATUS_INFO *si = NULL;
297 ASN1_UTF8STRING *utf8_text = NULL;
300 if ((si = TS_STATUS_INFO_new()) == NULL)
302 if (!ASN1_INTEGER_set(si->status, status))
305 if ((utf8_text = ASN1_UTF8STRING_new()) == NULL
306 || !ASN1_STRING_set(utf8_text, text, strlen(text)))
309 && (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL)
311 if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text))
313 utf8_text = NULL; /* Ownership is lost. */
315 if (!TS_RESP_set_status_info(ctx->response, si))
320 TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE);
321 TS_STATUS_INFO_free(si);
322 ASN1_UTF8STRING_free(utf8_text);
326 int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
327 int status, const char *text)
330 TS_STATUS_INFO *si = ctx->response->status_info;
332 if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) {
333 ret = TS_RESP_CTX_set_status_info(ctx, status, text);
338 int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure)
340 TS_STATUS_INFO *si = ctx->response->status_info;
341 if (si->failure_info == NULL
342 && (si->failure_info = ASN1_BIT_STRING_new()) == NULL)
344 if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1))
348 TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE);
352 TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx)
357 TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx)
359 return ctx->tst_info;
362 int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
365 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
367 ctx->clock_precision_digits = precision;
371 /* Main entry method of the response generation. */
372 TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio)
378 ts_RESP_CTX_init(ctx);
380 if ((ctx->response = TS_RESP_new()) == NULL) {
381 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE);
384 if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) {
385 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
386 "Bad request format or system error.");
387 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
390 if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL))
392 if (!ts_RESP_check_request(ctx))
394 if ((policy = ts_RESP_get_policy(ctx)) == NULL)
396 if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL)
398 if (!ts_RESP_process_extensions(ctx))
400 if (!ts_RESP_sign(ctx))
406 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR);
407 if (ctx->response != NULL) {
408 if (TS_RESP_CTX_set_status_info_cond(ctx,
410 "Error during response "
411 "generation.") == 0) {
412 TS_RESP_free(ctx->response);
413 ctx->response = NULL;
417 response = ctx->response;
418 ctx->response = NULL; /* Ownership will be returned to caller. */
419 ts_RESP_CTX_cleanup(ctx);
423 /* Initializes the variable part of the context. */
424 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx)
427 ctx->response = NULL;
428 ctx->tst_info = NULL;
431 /* Cleans up the variable part of the context. */
432 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx)
434 TS_REQ_free(ctx->request);
436 TS_RESP_free(ctx->response);
437 ctx->response = NULL;
438 TS_TST_INFO_free(ctx->tst_info);
439 ctx->tst_info = NULL;
442 /* Checks the format and content of the request. */
443 static int ts_RESP_check_request(TS_RESP_CTX *ctx)
445 TS_REQ *request = ctx->request;
446 TS_MSG_IMPRINT *msg_imprint;
449 const ASN1_OCTET_STRING *digest;
450 const EVP_MD *md = NULL;
453 if (TS_REQ_get_version(request) != 1) {
454 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
455 "Bad request version.");
456 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST);
460 msg_imprint = request->msg_imprint;
461 md_alg = msg_imprint->hash_algo;
462 md_alg_id = OBJ_obj2nid(md_alg->algorithm);
463 for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) {
464 const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i);
465 if (md_alg_id == EVP_MD_type(current_md))
469 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
470 "Message digest algorithm is "
472 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
476 if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) {
477 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
478 "Superfluous message digest "
480 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
483 digest = msg_imprint->hashed_msg;
484 if (digest->length != EVP_MD_size(md)) {
485 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
486 "Bad message digest.");
487 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
494 /* Returns the TSA policy based on the requested and acceptable policies. */
495 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx)
497 ASN1_OBJECT *requested = ctx->request->policy_id;
498 ASN1_OBJECT *policy = NULL;
501 if (ctx->default_policy == NULL) {
502 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER);
505 if (!requested || !OBJ_cmp(requested, ctx->default_policy))
506 policy = ctx->default_policy;
508 /* Check if the policy is acceptable. */
509 for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) {
510 ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i);
511 if (!OBJ_cmp(requested, current))
515 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY);
516 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
517 "Requested policy is not " "supported.");
518 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY);
523 /* Creates the TS_TST_INFO object based on the settings of the context. */
524 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
528 TS_TST_INFO *tst_info = NULL;
529 ASN1_INTEGER *serial = NULL;
530 ASN1_GENERALIZEDTIME *asn1_time = NULL;
532 TS_ACCURACY *accuracy = NULL;
533 const ASN1_INTEGER *nonce;
534 GENERAL_NAME *tsa_name = NULL;
536 if ((tst_info = TS_TST_INFO_new()) == NULL)
538 if (!TS_TST_INFO_set_version(tst_info, 1))
540 if (!TS_TST_INFO_set_policy_id(tst_info, policy))
542 if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint))
544 if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL
545 || !TS_TST_INFO_set_serial(tst_info, serial))
547 if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec)
549 TS_RESP_set_genTime_with_precision(NULL, sec, usec,
550 ctx->clock_precision_digits)) == NULL
551 || !TS_TST_INFO_set_time(tst_info, asn1_time))
554 if ((ctx->seconds || ctx->millis || ctx->micros)
555 && (accuracy = TS_ACCURACY_new()) == NULL)
557 if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds))
559 if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis))
561 if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros))
563 if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy))
566 if ((ctx->flags & TS_ORDERING)
567 && !TS_TST_INFO_set_ordering(tst_info, 1))
570 if ((nonce = ctx->request->nonce) != NULL
571 && !TS_TST_INFO_set_nonce(tst_info, nonce))
574 if (ctx->flags & TS_TSA_NAME) {
575 if ((tsa_name = GENERAL_NAME_new()) == NULL)
577 tsa_name->type = GEN_DIRNAME;
579 X509_NAME_dup(X509_get_subject_name(ctx->signer_cert));
580 if (!tsa_name->d.dirn)
582 if (!TS_TST_INFO_set_tsa(tst_info, tsa_name))
589 TS_TST_INFO_free(tst_info);
591 TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR);
592 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
593 "Error during TSTInfo "
596 GENERAL_NAME_free(tsa_name);
597 TS_ACCURACY_free(accuracy);
598 ASN1_GENERALIZEDTIME_free(asn1_time);
599 ASN1_INTEGER_free(serial);
604 /* Processing the extensions of the request. */
605 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx)
607 STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions;
611 for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) {
612 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
614 * The last argument was previously (void *)ctx->extension_cb,
615 * but ISO C doesn't permit converting a function pointer to void *.
616 * For lack of better information, I'm placing a NULL there instead.
617 * The callback can pick its own address out from the ctx anyway...
619 ok = (*ctx->extension_cb) (ctx, ext, NULL);
625 /* Functions for signing the TS_TST_INFO structure of the context. */
626 static int ts_RESP_sign(TS_RESP_CTX *ctx)
630 PKCS7_SIGNER_INFO *si;
631 STACK_OF(X509) *certs; /* Certificates to include in sc. */
632 ESS_SIGNING_CERT *sc = NULL;
637 if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) {
638 TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
642 if ((p7 = PKCS7_new()) == NULL) {
643 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
646 if (!PKCS7_set_type(p7, NID_pkcs7_signed))
648 if (!ASN1_INTEGER_set(p7->d.sign->version, 3))
651 if (ctx->request->cert_req) {
652 PKCS7_add_certificate(p7, ctx->signer_cert);
654 for (i = 0; i < sk_X509_num(ctx->certs); ++i) {
655 X509 *cert = sk_X509_value(ctx->certs, i);
656 PKCS7_add_certificate(p7, cert);
661 if ((si = PKCS7_add_signature(p7, ctx->signer_cert,
662 ctx->signer_key, ctx->signer_md)) == NULL) {
663 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR);
667 oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
668 if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
669 V_ASN1_OBJECT, oid)) {
670 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR);
674 certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL;
675 if ((sc = ess_SIGNING_CERT_new_init(ctx->signer_cert, certs)) == NULL)
677 if (!ESS_add_signing_cert(si, sc)) {
678 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR);
682 if (!ts_TST_INFO_content_new(p7))
684 if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) {
685 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
688 if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) {
689 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
692 if (!PKCS7_dataFinal(p7, p7bio)) {
693 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
696 TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info);
697 p7 = NULL; /* Ownership is lost. */
698 ctx->tst_info = NULL; /* Ownership is lost. */
703 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
704 "Error during signature "
707 ESS_SIGNING_CERT_free(sc);
712 static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert,
713 STACK_OF(X509) *certs)
716 ESS_SIGNING_CERT *sc = NULL;
719 if ((sc = ESS_SIGNING_CERT_new()) == NULL)
721 if (sc->cert_ids == NULL
722 && (sc->cert_ids = sk_ESS_CERT_ID_new_null()) == NULL)
725 if ((cid = ess_CERT_ID_new_init(signcert, 0)) == NULL
726 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
728 for (i = 0; i < sk_X509_num(certs); ++i) {
729 X509 *cert = sk_X509_value(certs, i);
730 if ((cid = ess_CERT_ID_new_init(cert, 1)) == NULL
731 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
737 ESS_SIGNING_CERT_free(sc);
738 TSerr(TS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE);
742 static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed)
744 ESS_CERT_ID *cid = NULL;
745 GENERAL_NAME *name = NULL;
746 unsigned char cert_sha1[SHA_DIGEST_LENGTH];
748 /* Call for side-effect of computing hash and caching extensions */
749 X509_check_purpose(cert, -1, 0);
750 if ((cid = ESS_CERT_ID_new()) == NULL)
752 X509_digest(cert, EVP_sha1(), cert_sha1, NULL);
753 if (!ASN1_OCTET_STRING_set(cid->hash, cert_sha1, SHA_DIGEST_LENGTH))
756 /* Setting the issuer/serial if requested. */
758 if (cid->issuer_serial == NULL
759 && (cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
761 if ((name = GENERAL_NAME_new()) == NULL)
763 name->type = GEN_DIRNAME;
764 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
766 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
768 name = NULL; /* Ownership is lost. */
769 ASN1_INTEGER_free(cid->issuer_serial->serial);
770 if (!(cid->issuer_serial->serial =
771 ASN1_INTEGER_dup(X509_get_serialNumber(cert))))
777 GENERAL_NAME_free(name);
778 ESS_CERT_ID_free(cid);
779 TSerr(TS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE);
783 static int ts_TST_INFO_content_new(PKCS7 *p7)
786 ASN1_OCTET_STRING *octet_string = NULL;
788 /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */
789 if ((ret = PKCS7_new()) == NULL)
791 if ((ret->d.other = ASN1_TYPE_new()) == NULL)
793 ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
794 if ((octet_string = ASN1_OCTET_STRING_new()) == NULL)
796 ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string);
799 /* Add encapsulated content to signed PKCS7 structure. */
800 if (!PKCS7_set_content(p7, ret))
805 ASN1_OCTET_STRING_free(octet_string);
810 static int ESS_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc)
812 ASN1_STRING *seq = NULL;
813 unsigned char *p, *pp = NULL;
816 len = i2d_ESS_SIGNING_CERT(sc, NULL);
817 if ((pp = OPENSSL_malloc(len)) == NULL) {
818 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
822 i2d_ESS_SIGNING_CERT(sc, &p);
823 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
824 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
829 return PKCS7_add_signed_attribute(si,
830 NID_id_smime_aa_signingCertificate,
831 V_ASN1_SEQUENCE, seq);
833 ASN1_STRING_free(seq);
839 static ASN1_GENERALIZEDTIME
840 *TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *asn1_time,
841 long sec, long usec, unsigned precision)
843 time_t time_sec = (time_t)sec;
844 struct tm *tm = NULL, tm_result;
845 char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS];
846 char *p = genTime_str;
847 char *p_end = genTime_str + sizeof(genTime_str);
849 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
852 if ((tm = OPENSSL_gmtime(&time_sec, &tm_result)) == NULL)
856 * Put "genTime_str" in GeneralizedTime format. We work around the
857 * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST
858 * NOT include fractional seconds") and OpenSSL related functions to
859 * meet the rfc3161 requirement: "GeneralizedTime syntax can include
860 * fraction-of-second details".
862 p += BIO_snprintf(p, p_end - p,
863 "%04d%02d%02d%02d%02d%02d",
864 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
865 tm->tm_hour, tm->tm_min, tm->tm_sec);
867 BIO_snprintf(p, 2 + precision, ".%06ld", usec);
871 * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the
872 * following restrictions for a DER-encoding, which OpenSSL
873 * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't
874 * support: "The encoding MUST terminate with a "Z" (which means
875 * "Zulu" time). The decimal point element, if present, MUST be the
876 * point option ".". The fractional-seconds elements, if present,
877 * MUST omit all trailing 0's; if the elements correspond to 0, they
878 * MUST be wholly omitted, and the decimal point element also MUST be
882 * Remove trailing zeros. The dot guarantees the exit condition of
883 * this loop even if all the digits are zero.
893 if (asn1_time == NULL
894 && (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL)
896 if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) {
897 ASN1_GENERALIZEDTIME_free(asn1_time);
903 TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME);