2 * Copyright 2006-2019 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
11 #include "internal/cryptlib.h"
13 #include <openssl/objects.h>
14 #include <openssl/ts.h>
15 #include <openssl/pkcs7.h>
16 #include <openssl/crypto.h>
18 #include "crypto/ess.h"
21 DEFINE_STACK_OF(X509_EXTENSION)
22 DEFINE_STACK_OF(ASN1_UTF8STRING)
23 DEFINE_STACK_OF(ASN1_OBJECT)
24 DEFINE_STACK_OF_CONST(EVP_MD)
26 static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *);
27 static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec);
28 static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *);
30 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx);
31 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx);
32 static int ts_RESP_check_request(TS_RESP_CTX *ctx);
33 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx);
34 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
36 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx);
37 static int ts_RESP_sign(TS_RESP_CTX *ctx);
39 static int ts_TST_INFO_content_new(PKCS7 *p7);
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.");
60 ASN1_INTEGER_free(serial);
64 #if defined(OPENSSL_SYS_UNIX)
66 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
67 long *sec, long *usec)
70 if (gettimeofday(&tv, NULL) != 0) {
71 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
72 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
73 "Time is not available.");
74 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
85 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
86 long *sec, long *usec)
89 if (time(&t) == (time_t)-1) {
90 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
91 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
92 "Time is not available.");
93 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
104 static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
107 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
108 "Unsupported extension.");
109 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION);
113 /* TS_RESP_CTX management functions. */
115 TS_RESP_CTX *TS_RESP_CTX_new(void)
119 if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
120 TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE);
124 ctx->signer_md = EVP_sha256();
126 ctx->serial_cb = def_serial_cb;
127 ctx->time_cb = def_time_cb;
128 ctx->extension_cb = def_extension_cb;
133 void TS_RESP_CTX_free(TS_RESP_CTX *ctx)
138 X509_free(ctx->signer_cert);
139 EVP_PKEY_free(ctx->signer_key);
140 sk_X509_pop_free(ctx->certs, X509_free);
141 sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free);
142 ASN1_OBJECT_free(ctx->default_policy);
143 sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */
144 ASN1_INTEGER_free(ctx->seconds);
145 ASN1_INTEGER_free(ctx->millis);
146 ASN1_INTEGER_free(ctx->micros);
150 int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer)
152 if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) {
153 TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT,
154 TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE);
157 X509_free(ctx->signer_cert);
158 ctx->signer_cert = signer;
159 X509_up_ref(ctx->signer_cert);
163 int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key)
165 EVP_PKEY_free(ctx->signer_key);
166 ctx->signer_key = key;
167 EVP_PKEY_up_ref(ctx->signer_key);
172 int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
178 int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy)
180 ASN1_OBJECT_free(ctx->default_policy);
181 if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL)
185 TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE);
189 int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs)
192 sk_X509_pop_free(ctx->certs, X509_free);
196 if ((ctx->certs = X509_chain_up_ref(certs)) == NULL) {
197 TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE);
204 int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy)
206 ASN1_OBJECT *copy = NULL;
208 if (ctx->policies == NULL
209 && (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL)
211 if ((copy = OBJ_dup(policy)) == NULL)
213 if (!sk_ASN1_OBJECT_push(ctx->policies, copy))
218 TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE);
219 ASN1_OBJECT_free(copy);
223 int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md)
226 && (ctx->mds = sk_EVP_MD_new_null()) == NULL)
228 if (!sk_EVP_MD_push(ctx->mds, md))
233 TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE);
237 #define TS_RESP_CTX_accuracy_free(ctx) \
238 ASN1_INTEGER_free(ctx->seconds); \
239 ctx->seconds = NULL; \
240 ASN1_INTEGER_free(ctx->millis); \
241 ctx->millis = NULL; \
242 ASN1_INTEGER_free(ctx->micros); \
245 int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
246 int secs, int millis, int micros)
249 TS_RESP_CTX_accuracy_free(ctx);
251 && ((ctx->seconds = ASN1_INTEGER_new()) == NULL
252 || !ASN1_INTEGER_set(ctx->seconds, secs)))
255 && ((ctx->millis = ASN1_INTEGER_new()) == NULL
256 || !ASN1_INTEGER_set(ctx->millis, millis)))
259 && ((ctx->micros = ASN1_INTEGER_new()) == NULL
260 || !ASN1_INTEGER_set(ctx->micros, micros)))
265 TS_RESP_CTX_accuracy_free(ctx);
266 TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE);
270 void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags)
275 void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data)
278 ctx->serial_cb_data = data;
281 void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data)
284 ctx->time_cb_data = data;
287 void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
288 TS_extension_cb cb, void *data)
290 ctx->extension_cb = cb;
291 ctx->extension_cb_data = data;
294 int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
295 int status, const char *text)
297 TS_STATUS_INFO *si = NULL;
298 ASN1_UTF8STRING *utf8_text = NULL;
301 if ((si = TS_STATUS_INFO_new()) == NULL)
303 if (!ASN1_INTEGER_set(si->status, status))
306 if ((utf8_text = ASN1_UTF8STRING_new()) == NULL
307 || !ASN1_STRING_set(utf8_text, text, strlen(text)))
310 && (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL)
312 if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text))
314 utf8_text = NULL; /* Ownership is lost. */
316 if (!TS_RESP_set_status_info(ctx->response, si))
321 TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE);
322 TS_STATUS_INFO_free(si);
323 ASN1_UTF8STRING_free(utf8_text);
327 int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
328 int status, const char *text)
331 TS_STATUS_INFO *si = ctx->response->status_info;
333 if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) {
334 ret = TS_RESP_CTX_set_status_info(ctx, status, text);
339 int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure)
341 TS_STATUS_INFO *si = ctx->response->status_info;
342 if (si->failure_info == NULL
343 && (si->failure_info = ASN1_BIT_STRING_new()) == NULL)
345 if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1))
349 TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE);
353 TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx)
358 TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx)
360 return ctx->tst_info;
363 int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
366 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
368 ctx->clock_precision_digits = precision;
372 /* Main entry method of the response generation. */
373 TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio)
379 ts_RESP_CTX_init(ctx);
381 if ((ctx->response = TS_RESP_new()) == NULL) {
382 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE);
385 if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) {
386 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
387 "Bad request format or system error.");
388 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
391 if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL))
393 if (!ts_RESP_check_request(ctx))
395 if ((policy = ts_RESP_get_policy(ctx)) == NULL)
397 if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL)
399 if (!ts_RESP_process_extensions(ctx))
401 if (!ts_RESP_sign(ctx))
407 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR);
408 if (ctx->response != NULL) {
409 if (TS_RESP_CTX_set_status_info_cond(ctx,
411 "Error during response "
412 "generation.") == 0) {
413 TS_RESP_free(ctx->response);
414 ctx->response = NULL;
418 response = ctx->response;
419 ctx->response = NULL; /* Ownership will be returned to caller. */
420 ts_RESP_CTX_cleanup(ctx);
424 /* Initializes the variable part of the context. */
425 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx)
428 ctx->response = NULL;
429 ctx->tst_info = NULL;
432 /* Cleans up the variable part of the context. */
433 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx)
435 TS_REQ_free(ctx->request);
437 TS_RESP_free(ctx->response);
438 ctx->response = NULL;
439 TS_TST_INFO_free(ctx->tst_info);
440 ctx->tst_info = NULL;
443 /* Checks the format and content of the request. */
444 static int ts_RESP_check_request(TS_RESP_CTX *ctx)
446 TS_REQ *request = ctx->request;
447 TS_MSG_IMPRINT *msg_imprint;
450 const ASN1_OCTET_STRING *digest;
451 const EVP_MD *md = NULL;
454 if (TS_REQ_get_version(request) != 1) {
455 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
456 "Bad request version.");
457 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST);
461 msg_imprint = request->msg_imprint;
462 md_alg = msg_imprint->hash_algo;
463 md_alg_id = OBJ_obj2nid(md_alg->algorithm);
464 for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) {
465 const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i);
466 if (md_alg_id == EVP_MD_type(current_md))
470 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
471 "Message digest algorithm is "
473 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
477 if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) {
478 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
479 "Superfluous message digest "
481 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
484 digest = msg_imprint->hashed_msg;
485 if (digest->length != EVP_MD_size(md)) {
486 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
487 "Bad message digest.");
488 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
495 /* Returns the TSA policy based on the requested and acceptable policies. */
496 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx)
498 ASN1_OBJECT *requested = ctx->request->policy_id;
499 ASN1_OBJECT *policy = NULL;
502 if (ctx->default_policy == NULL) {
503 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER);
506 if (!requested || !OBJ_cmp(requested, ctx->default_policy))
507 policy = ctx->default_policy;
509 /* Check if the policy is acceptable. */
510 for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) {
511 ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i);
512 if (!OBJ_cmp(requested, current))
515 if (policy == NULL) {
516 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY);
517 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
518 "Requested policy is not " "supported.");
519 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY);
524 /* Creates the TS_TST_INFO object based on the settings of the context. */
525 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
529 TS_TST_INFO *tst_info = NULL;
530 ASN1_INTEGER *serial = NULL;
531 ASN1_GENERALIZEDTIME *asn1_time = NULL;
533 TS_ACCURACY *accuracy = NULL;
534 const ASN1_INTEGER *nonce;
535 GENERAL_NAME *tsa_name = NULL;
537 if ((tst_info = TS_TST_INFO_new()) == NULL)
539 if (!TS_TST_INFO_set_version(tst_info, 1))
541 if (!TS_TST_INFO_set_policy_id(tst_info, policy))
543 if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint))
545 if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL
546 || !TS_TST_INFO_set_serial(tst_info, serial))
548 if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec)
550 TS_RESP_set_genTime_with_precision(NULL, sec, usec,
551 ctx->clock_precision_digits)) == NULL
552 || !TS_TST_INFO_set_time(tst_info, asn1_time))
555 if ((ctx->seconds || ctx->millis || ctx->micros)
556 && (accuracy = TS_ACCURACY_new()) == NULL)
558 if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds))
560 if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis))
562 if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros))
564 if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy))
567 if ((ctx->flags & TS_ORDERING)
568 && !TS_TST_INFO_set_ordering(tst_info, 1))
571 if ((nonce = ctx->request->nonce) != NULL
572 && !TS_TST_INFO_set_nonce(tst_info, nonce))
575 if (ctx->flags & TS_TSA_NAME) {
576 if ((tsa_name = GENERAL_NAME_new()) == NULL)
578 tsa_name->type = GEN_DIRNAME;
580 X509_NAME_dup(X509_get_subject_name(ctx->signer_cert));
581 if (!tsa_name->d.dirn)
583 if (!TS_TST_INFO_set_tsa(tst_info, tsa_name))
590 TS_TST_INFO_free(tst_info);
592 TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR);
593 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
594 "Error during TSTInfo "
597 GENERAL_NAME_free(tsa_name);
598 TS_ACCURACY_free(accuracy);
599 ASN1_GENERALIZEDTIME_free(asn1_time);
600 ASN1_INTEGER_free(serial);
605 /* Processing the extensions of the request. */
606 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx)
608 STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions;
612 for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) {
613 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
615 * The last argument was previously (void *)ctx->extension_cb,
616 * but ISO C doesn't permit converting a function pointer to void *.
617 * For lack of better information, I'm placing a NULL there instead.
618 * The callback can pick its own address out from the ctx anyway...
620 ok = (*ctx->extension_cb) (ctx, ext, NULL);
626 /* Functions for signing the TS_TST_INFO structure of the context. */
627 static int ts_RESP_sign(TS_RESP_CTX *ctx)
631 PKCS7_SIGNER_INFO *si;
632 STACK_OF(X509) *certs; /* Certificates to include in sc. */
633 ESS_SIGNING_CERT_V2 *sc2 = NULL;
634 ESS_SIGNING_CERT *sc = NULL;
639 if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) {
640 TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
644 if ((p7 = PKCS7_new()) == NULL) {
645 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
648 if (!PKCS7_set_type(p7, NID_pkcs7_signed))
650 if (!ASN1_INTEGER_set(p7->d.sign->version, 3))
653 if (ctx->request->cert_req) {
654 PKCS7_add_certificate(p7, ctx->signer_cert);
656 for (i = 0; i < sk_X509_num(ctx->certs); ++i) {
657 X509 *cert = sk_X509_value(ctx->certs, i);
658 PKCS7_add_certificate(p7, cert);
663 if ((si = PKCS7_add_signature(p7, ctx->signer_cert,
664 ctx->signer_key, ctx->signer_md)) == NULL) {
665 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR);
669 oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
670 if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
671 V_ASN1_OBJECT, oid)) {
672 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR);
676 certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL;
677 if (ctx->ess_cert_id_digest == NULL
678 || ctx->ess_cert_id_digest == EVP_sha1()) {
679 if ((sc = ESS_SIGNING_CERT_new_init(ctx->signer_cert, certs, 0)) == NULL)
682 if (!ESS_SIGNING_CERT_add(si, sc)) {
683 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR);
687 sc2 = ESS_SIGNING_CERT_V2_new_init(ctx->ess_cert_id_digest,
688 ctx->signer_cert, certs, 0);
692 if (!ESS_SIGNING_CERT_V2_add(si, sc2)) {
693 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR);
698 if (!ts_TST_INFO_content_new(p7))
700 if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) {
701 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
704 if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) {
705 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
708 if (!PKCS7_dataFinal(p7, p7bio)) {
709 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
712 TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info);
713 p7 = NULL; /* Ownership is lost. */
714 ctx->tst_info = NULL; /* Ownership is lost. */
719 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
720 "Error during signature "
723 ESS_SIGNING_CERT_V2_free(sc2);
724 ESS_SIGNING_CERT_free(sc);
729 static int ts_TST_INFO_content_new(PKCS7 *p7)
732 ASN1_OCTET_STRING *octet_string = NULL;
734 /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */
735 if ((ret = PKCS7_new()) == NULL)
737 if ((ret->d.other = ASN1_TYPE_new()) == NULL)
739 ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
740 if ((octet_string = ASN1_OCTET_STRING_new()) == NULL)
742 ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string);
745 /* Add encapsulated content to signed PKCS7 structure. */
746 if (!PKCS7_set_content(p7, ret))
751 ASN1_OCTET_STRING_free(octet_string);
756 static ASN1_GENERALIZEDTIME *TS_RESP_set_genTime_with_precision(
757 ASN1_GENERALIZEDTIME *asn1_time, long sec, long usec,
760 time_t time_sec = (time_t)sec;
761 struct tm *tm = NULL, tm_result;
762 char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS];
763 char *p = genTime_str;
764 char *p_end = genTime_str + sizeof(genTime_str);
766 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
769 if ((tm = OPENSSL_gmtime(&time_sec, &tm_result)) == NULL)
773 * Put "genTime_str" in GeneralizedTime format. We work around the
774 * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST
775 * NOT include fractional seconds") and OpenSSL related functions to
776 * meet the rfc3161 requirement: "GeneralizedTime syntax can include
777 * fraction-of-second details".
779 p += BIO_snprintf(p, p_end - p,
780 "%04d%02d%02d%02d%02d%02d",
781 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
782 tm->tm_hour, tm->tm_min, tm->tm_sec);
784 BIO_snprintf(p, 2 + precision, ".%06ld", usec);
788 * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the
789 * following restrictions for a DER-encoding, which OpenSSL
790 * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't
791 * support: "The encoding MUST terminate with a "Z" (which means
792 * "Zulu" time). The decimal point element, if present, MUST be the
793 * point option ".". The fractional-seconds elements, if present,
794 * MUST omit all trailing 0's; if the elements correspond to 0, they
795 * MUST be wholly omitted, and the decimal point element also MUST be
799 * Remove trailing zeros. The dot guarantees the exit condition of
800 * this loop even if all the digits are zero.
810 if (asn1_time == NULL
811 && (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL)
813 if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) {
814 ASN1_GENERALIZEDTIME_free(asn1_time);
820 TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME);
824 int TS_RESP_CTX_set_ess_cert_id_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
826 ctx->ess_cert_id_digest = md;