2 * Copyright 2006-2020 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
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>
19 static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *, void *);
20 static int def_time_cb(struct TS_resp_ctx *, void *, long *sec, long *usec);
21 static int def_extension_cb(struct TS_resp_ctx *, X509_EXTENSION *, void *);
23 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx);
24 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx);
25 static int ts_RESP_check_request(TS_RESP_CTX *ctx);
26 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx);
27 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
29 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx);
30 static int ts_RESP_sign(TS_RESP_CTX *ctx);
32 static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert,
33 STACK_OF(X509) *certs);
34 static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed);
35 static int ts_TST_INFO_content_new(PKCS7 *p7);
36 static int ess_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc);
38 static ESS_SIGNING_CERT_V2 *ess_signing_cert_v2_new_init(const EVP_MD *hash_alg,
42 static ESS_CERT_ID_V2 *ess_cert_id_v2_new_init(const EVP_MD *hash_alg,
43 X509 *cert, int issuer_needed);
44 static int ess_add_signing_cert_v2(PKCS7_SIGNER_INFO *si,
45 ESS_SIGNING_CERT_V2 *sc);
47 static ASN1_GENERALIZEDTIME
48 *TS_RESP_set_genTime_with_precision(ASN1_GENERALIZEDTIME *, long, long,
51 /* Default callback for response generation. */
52 static ASN1_INTEGER *def_serial_cb(struct TS_resp_ctx *ctx, void *data)
54 ASN1_INTEGER *serial = ASN1_INTEGER_new();
58 if (!ASN1_INTEGER_set(serial, 1))
64 TSerr(TS_F_DEF_SERIAL_CB, ERR_R_MALLOC_FAILURE);
65 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
66 "Error during serial number generation.");
67 ASN1_INTEGER_free(serial);
71 #if defined(OPENSSL_SYS_UNIX)
73 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
74 long *sec, long *usec)
77 if (gettimeofday(&tv, NULL) != 0) {
78 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
79 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
80 "Time is not available.");
81 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
92 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
93 long *sec, long *usec)
96 if (time(&t) == (time_t)-1) {
97 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
98 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
99 "Time is not available.");
100 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
111 static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
114 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
115 "Unsupported extension.");
116 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION);
120 /* TS_RESP_CTX management functions. */
122 TS_RESP_CTX *TS_RESP_CTX_new(void)
126 if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
127 TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE);
131 ctx->signer_md = EVP_sha256();
133 ctx->serial_cb = def_serial_cb;
134 ctx->time_cb = def_time_cb;
135 ctx->extension_cb = def_extension_cb;
140 void TS_RESP_CTX_free(TS_RESP_CTX *ctx)
145 X509_free(ctx->signer_cert);
146 EVP_PKEY_free(ctx->signer_key);
147 sk_X509_pop_free(ctx->certs, X509_free);
148 sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free);
149 ASN1_OBJECT_free(ctx->default_policy);
150 sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */
151 ASN1_INTEGER_free(ctx->seconds);
152 ASN1_INTEGER_free(ctx->millis);
153 ASN1_INTEGER_free(ctx->micros);
157 int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer)
159 if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) {
160 TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT,
161 TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE);
164 X509_free(ctx->signer_cert);
165 ctx->signer_cert = signer;
166 X509_up_ref(ctx->signer_cert);
170 int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key)
172 EVP_PKEY_free(ctx->signer_key);
173 ctx->signer_key = key;
174 EVP_PKEY_up_ref(ctx->signer_key);
179 int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
185 int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy)
187 ASN1_OBJECT_free(ctx->default_policy);
188 if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL)
192 TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE);
196 int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs)
199 sk_X509_pop_free(ctx->certs, X509_free);
203 if ((ctx->certs = X509_chain_up_ref(certs)) == NULL) {
204 TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE);
211 int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy)
213 ASN1_OBJECT *copy = NULL;
215 if (ctx->policies == NULL
216 && (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL)
218 if ((copy = OBJ_dup(policy)) == NULL)
220 if (!sk_ASN1_OBJECT_push(ctx->policies, copy))
225 TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE);
226 ASN1_OBJECT_free(copy);
230 int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md)
233 && (ctx->mds = sk_EVP_MD_new_null()) == NULL)
235 if (!sk_EVP_MD_push(ctx->mds, md))
240 TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE);
244 #define TS_RESP_CTX_accuracy_free(ctx) \
245 ASN1_INTEGER_free(ctx->seconds); \
246 ctx->seconds = NULL; \
247 ASN1_INTEGER_free(ctx->millis); \
248 ctx->millis = NULL; \
249 ASN1_INTEGER_free(ctx->micros); \
252 int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
253 int secs, int millis, int micros)
256 TS_RESP_CTX_accuracy_free(ctx);
258 && ((ctx->seconds = ASN1_INTEGER_new()) == NULL
259 || !ASN1_INTEGER_set(ctx->seconds, secs)))
262 && ((ctx->millis = ASN1_INTEGER_new()) == NULL
263 || !ASN1_INTEGER_set(ctx->millis, millis)))
266 && ((ctx->micros = ASN1_INTEGER_new()) == NULL
267 || !ASN1_INTEGER_set(ctx->micros, micros)))
272 TS_RESP_CTX_accuracy_free(ctx);
273 TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE);
277 void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags)
282 void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data)
285 ctx->serial_cb_data = data;
288 void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data)
291 ctx->time_cb_data = data;
294 void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
295 TS_extension_cb cb, void *data)
297 ctx->extension_cb = cb;
298 ctx->extension_cb_data = data;
301 int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
302 int status, const char *text)
304 TS_STATUS_INFO *si = NULL;
305 ASN1_UTF8STRING *utf8_text = NULL;
308 if ((si = TS_STATUS_INFO_new()) == NULL)
310 if (!ASN1_INTEGER_set(si->status, status))
313 if ((utf8_text = ASN1_UTF8STRING_new()) == NULL
314 || !ASN1_STRING_set(utf8_text, text, strlen(text)))
317 && (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL)
319 if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text))
321 utf8_text = NULL; /* Ownership is lost. */
323 if (!TS_RESP_set_status_info(ctx->response, si))
328 TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE);
329 TS_STATUS_INFO_free(si);
330 ASN1_UTF8STRING_free(utf8_text);
334 int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
335 int status, const char *text)
338 TS_STATUS_INFO *si = ctx->response->status_info;
340 if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) {
341 ret = TS_RESP_CTX_set_status_info(ctx, status, text);
346 int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure)
348 TS_STATUS_INFO *si = ctx->response->status_info;
349 if (si->failure_info == NULL
350 && (si->failure_info = ASN1_BIT_STRING_new()) == NULL)
352 if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1))
356 TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE);
360 TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx)
365 TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx)
367 return ctx->tst_info;
370 int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
373 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
375 ctx->clock_precision_digits = precision;
379 /* Main entry method of the response generation. */
380 TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio)
386 ts_RESP_CTX_init(ctx);
388 if ((ctx->response = TS_RESP_new()) == NULL) {
389 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE);
392 if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) {
393 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
394 "Bad request format or system error.");
395 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
398 if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL))
400 if (!ts_RESP_check_request(ctx))
402 if ((policy = ts_RESP_get_policy(ctx)) == NULL)
404 if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL)
406 if (!ts_RESP_process_extensions(ctx))
408 if (!ts_RESP_sign(ctx))
414 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR);
415 if (ctx->response != NULL) {
416 if (TS_RESP_CTX_set_status_info_cond(ctx,
418 "Error during response "
419 "generation.") == 0) {
420 TS_RESP_free(ctx->response);
421 ctx->response = NULL;
425 response = ctx->response;
426 ctx->response = NULL; /* Ownership will be returned to caller. */
427 ts_RESP_CTX_cleanup(ctx);
431 /* Initializes the variable part of the context. */
432 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx)
435 ctx->response = NULL;
436 ctx->tst_info = NULL;
439 /* Cleans up the variable part of the context. */
440 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx)
442 TS_REQ_free(ctx->request);
444 TS_RESP_free(ctx->response);
445 ctx->response = NULL;
446 TS_TST_INFO_free(ctx->tst_info);
447 ctx->tst_info = NULL;
450 /* Checks the format and content of the request. */
451 static int ts_RESP_check_request(TS_RESP_CTX *ctx)
453 TS_REQ *request = ctx->request;
454 TS_MSG_IMPRINT *msg_imprint;
457 const ASN1_OCTET_STRING *digest;
458 const EVP_MD *md = NULL;
461 if (TS_REQ_get_version(request) != 1) {
462 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
463 "Bad request version.");
464 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST);
468 msg_imprint = request->msg_imprint;
469 md_alg = msg_imprint->hash_algo;
470 md_alg_id = OBJ_obj2nid(md_alg->algorithm);
471 for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) {
472 const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i);
473 if (md_alg_id == EVP_MD_type(current_md))
477 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
478 "Message digest algorithm is "
480 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
484 if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) {
485 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
486 "Superfluous message digest "
488 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
491 digest = msg_imprint->hashed_msg;
492 if (digest->length != EVP_MD_size(md)) {
493 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
494 "Bad message digest.");
495 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
502 /* Returns the TSA policy based on the requested and acceptable policies. */
503 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx)
505 ASN1_OBJECT *requested = ctx->request->policy_id;
506 ASN1_OBJECT *policy = NULL;
509 if (ctx->default_policy == NULL) {
510 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER);
513 if (!requested || !OBJ_cmp(requested, ctx->default_policy))
514 policy = ctx->default_policy;
516 /* Check if the policy is acceptable. */
517 for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) {
518 ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i);
519 if (!OBJ_cmp(requested, current))
523 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY);
524 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
525 "Requested policy is not " "supported.");
526 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY);
531 /* Creates the TS_TST_INFO object based on the settings of the context. */
532 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
536 TS_TST_INFO *tst_info = NULL;
537 ASN1_INTEGER *serial = NULL;
538 ASN1_GENERALIZEDTIME *asn1_time = NULL;
540 TS_ACCURACY *accuracy = NULL;
541 const ASN1_INTEGER *nonce;
542 GENERAL_NAME *tsa_name = NULL;
544 if ((tst_info = TS_TST_INFO_new()) == NULL)
546 if (!TS_TST_INFO_set_version(tst_info, 1))
548 if (!TS_TST_INFO_set_policy_id(tst_info, policy))
550 if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint))
552 if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL
553 || !TS_TST_INFO_set_serial(tst_info, serial))
555 if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec)
557 TS_RESP_set_genTime_with_precision(NULL, sec, usec,
558 ctx->clock_precision_digits)) == NULL
559 || !TS_TST_INFO_set_time(tst_info, asn1_time))
562 if ((ctx->seconds || ctx->millis || ctx->micros)
563 && (accuracy = TS_ACCURACY_new()) == NULL)
565 if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds))
567 if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis))
569 if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros))
571 if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy))
574 if ((ctx->flags & TS_ORDERING)
575 && !TS_TST_INFO_set_ordering(tst_info, 1))
578 if ((nonce = ctx->request->nonce) != NULL
579 && !TS_TST_INFO_set_nonce(tst_info, nonce))
582 if (ctx->flags & TS_TSA_NAME) {
583 if ((tsa_name = GENERAL_NAME_new()) == NULL)
585 tsa_name->type = GEN_DIRNAME;
587 X509_NAME_dup(X509_get_subject_name(ctx->signer_cert));
588 if (!tsa_name->d.dirn)
590 if (!TS_TST_INFO_set_tsa(tst_info, tsa_name))
597 TS_TST_INFO_free(tst_info);
599 TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR);
600 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
601 "Error during TSTInfo "
604 GENERAL_NAME_free(tsa_name);
605 TS_ACCURACY_free(accuracy);
606 ASN1_GENERALIZEDTIME_free(asn1_time);
607 ASN1_INTEGER_free(serial);
612 /* Processing the extensions of the request. */
613 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx)
615 STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions;
619 for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) {
620 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
622 * The last argument was previously (void *)ctx->extension_cb,
623 * but ISO C doesn't permit converting a function pointer to void *.
624 * For lack of better information, I'm placing a NULL there instead.
625 * The callback can pick its own address out from the ctx anyway...
627 ok = (*ctx->extension_cb) (ctx, ext, NULL);
633 /* Functions for signing the TS_TST_INFO structure of the context. */
634 static int ts_RESP_sign(TS_RESP_CTX *ctx)
638 PKCS7_SIGNER_INFO *si;
639 STACK_OF(X509) *certs; /* Certificates to include in sc. */
640 ESS_SIGNING_CERT_V2 *sc2 = NULL;
641 ESS_SIGNING_CERT *sc = NULL;
646 if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) {
647 TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
651 if ((p7 = PKCS7_new()) == NULL) {
652 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
655 if (!PKCS7_set_type(p7, NID_pkcs7_signed))
657 if (!ASN1_INTEGER_set(p7->d.sign->version, 3))
660 if (ctx->request->cert_req) {
661 PKCS7_add_certificate(p7, ctx->signer_cert);
663 for (i = 0; i < sk_X509_num(ctx->certs); ++i) {
664 X509 *cert = sk_X509_value(ctx->certs, i);
665 PKCS7_add_certificate(p7, cert);
670 if ((si = PKCS7_add_signature(p7, ctx->signer_cert,
671 ctx->signer_key, ctx->signer_md)) == NULL) {
672 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR);
676 oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
677 if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
678 V_ASN1_OBJECT, oid)) {
679 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR);
683 certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL;
684 if (ctx->ess_cert_id_digest == NULL
685 || ctx->ess_cert_id_digest == EVP_sha1()) {
686 if ((sc = ess_SIGNING_CERT_new_init(ctx->signer_cert, certs)) == NULL)
689 if (!ess_add_signing_cert(si, sc)) {
690 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR);
694 sc2 = ess_signing_cert_v2_new_init(ctx->ess_cert_id_digest,
695 ctx->signer_cert, certs);
699 if (!ess_add_signing_cert_v2(si, sc2)) {
700 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR);
705 if (!ts_TST_INFO_content_new(p7))
707 if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) {
708 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
711 if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) {
712 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
715 if (!PKCS7_dataFinal(p7, p7bio)) {
716 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
719 TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info);
720 p7 = NULL; /* Ownership is lost. */
721 ctx->tst_info = NULL; /* Ownership is lost. */
726 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
727 "Error during signature "
730 ESS_SIGNING_CERT_V2_free(sc2);
731 ESS_SIGNING_CERT_free(sc);
736 static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert,
737 STACK_OF(X509) *certs)
740 ESS_SIGNING_CERT *sc = NULL;
743 if ((sc = ESS_SIGNING_CERT_new()) == NULL)
745 if (sc->cert_ids == NULL
746 && (sc->cert_ids = sk_ESS_CERT_ID_new_null()) == NULL)
749 if ((cid = ess_CERT_ID_new_init(signcert, 0)) == NULL
750 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
752 for (i = 0; i < sk_X509_num(certs); ++i) {
753 X509 *cert = sk_X509_value(certs, i);
754 if ((cid = ess_CERT_ID_new_init(cert, 1)) == NULL
755 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
761 ESS_SIGNING_CERT_free(sc);
762 TSerr(TS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE);
766 static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed)
768 ESS_CERT_ID *cid = NULL;
769 GENERAL_NAME *name = NULL;
770 unsigned char cert_sha1[SHA_DIGEST_LENGTH];
772 /* Call for side-effect of computing hash and caching extensions */
773 X509_check_purpose(cert, -1, 0);
774 if ((cid = ESS_CERT_ID_new()) == NULL)
776 if (!X509_digest(cert, EVP_sha1(), cert_sha1, NULL))
778 if (!ASN1_OCTET_STRING_set(cid->hash, cert_sha1, SHA_DIGEST_LENGTH))
781 /* Setting the issuer/serial if requested. */
783 if (cid->issuer_serial == NULL
784 && (cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
786 if ((name = GENERAL_NAME_new()) == NULL)
788 name->type = GEN_DIRNAME;
789 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
791 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
793 name = NULL; /* Ownership is lost. */
794 ASN1_INTEGER_free(cid->issuer_serial->serial);
795 if (!(cid->issuer_serial->serial =
796 ASN1_INTEGER_dup(X509_get_serialNumber(cert))))
802 GENERAL_NAME_free(name);
803 ESS_CERT_ID_free(cid);
804 TSerr(TS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE);
808 static int ts_TST_INFO_content_new(PKCS7 *p7)
811 ASN1_OCTET_STRING *octet_string = NULL;
813 /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */
814 if ((ret = PKCS7_new()) == NULL)
816 if ((ret->d.other = ASN1_TYPE_new()) == NULL)
818 ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
819 if ((octet_string = ASN1_OCTET_STRING_new()) == NULL)
821 ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string);
824 /* Add encapsulated content to signed PKCS7 structure. */
825 if (!PKCS7_set_content(p7, ret))
830 ASN1_OCTET_STRING_free(octet_string);
835 static int ess_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc)
837 ASN1_STRING *seq = NULL;
838 unsigned char *p, *pp = NULL;
841 len = i2d_ESS_SIGNING_CERT(sc, NULL);
842 if ((pp = OPENSSL_malloc(len)) == NULL) {
843 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
847 i2d_ESS_SIGNING_CERT(sc, &p);
848 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
849 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
854 return PKCS7_add_signed_attribute(si,
855 NID_id_smime_aa_signingCertificate,
856 V_ASN1_SEQUENCE, seq);
858 ASN1_STRING_free(seq);
864 static ESS_SIGNING_CERT_V2 *ess_signing_cert_v2_new_init(const EVP_MD *hash_alg,
866 STACK_OF(X509) *certs)
868 ESS_CERT_ID_V2 *cid = NULL;
869 ESS_SIGNING_CERT_V2 *sc = NULL;
872 if ((sc = ESS_SIGNING_CERT_V2_new()) == NULL)
874 if ((cid = ess_cert_id_v2_new_init(hash_alg, signcert, 0)) == NULL)
876 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
880 for (i = 0; i < sk_X509_num(certs); ++i) {
881 X509 *cert = sk_X509_value(certs, i);
883 if ((cid = ess_cert_id_v2_new_init(hash_alg, cert, 1)) == NULL)
885 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
892 ESS_SIGNING_CERT_V2_free(sc);
893 ESS_CERT_ID_V2_free(cid);
894 TSerr(TS_F_ESS_SIGNING_CERT_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
898 static ESS_CERT_ID_V2 *ess_cert_id_v2_new_init(const EVP_MD *hash_alg,
899 X509 *cert, int issuer_needed)
901 ESS_CERT_ID_V2 *cid = NULL;
902 GENERAL_NAME *name = NULL;
903 unsigned char hash[EVP_MAX_MD_SIZE];
904 unsigned int hash_len = sizeof(hash);
905 X509_ALGOR *alg = NULL;
907 memset(hash, 0, sizeof(hash));
909 if ((cid = ESS_CERT_ID_V2_new()) == NULL)
912 if (hash_alg != EVP_sha256()) {
913 alg = X509_ALGOR_new();
916 X509_ALGOR_set_md(alg, hash_alg);
917 if (alg->algorithm == NULL)
922 cid->hash_alg = NULL;
925 if (!X509_digest(cert, hash_alg, hash, &hash_len))
928 if (!ASN1_OCTET_STRING_set(cid->hash, hash, hash_len))
932 if ((cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
934 if ((name = GENERAL_NAME_new()) == NULL)
936 name->type = GEN_DIRNAME;
937 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
939 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
941 name = NULL; /* Ownership is lost. */
942 ASN1_INTEGER_free(cid->issuer_serial->serial);
943 cid->issuer_serial->serial =
944 ASN1_INTEGER_dup(X509_get_serialNumber(cert));
945 if (cid->issuer_serial->serial == NULL)
951 X509_ALGOR_free(alg);
952 GENERAL_NAME_free(name);
953 ESS_CERT_ID_V2_free(cid);
954 TSerr(TS_F_ESS_CERT_ID_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
958 static int ess_add_signing_cert_v2(PKCS7_SIGNER_INFO *si,
959 ESS_SIGNING_CERT_V2 *sc)
961 ASN1_STRING *seq = NULL;
962 unsigned char *p, *pp = NULL;
963 int len = i2d_ESS_SIGNING_CERT_V2(sc, NULL);
965 if ((pp = OPENSSL_malloc(len)) == NULL) {
966 TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE);
971 i2d_ESS_SIGNING_CERT_V2(sc, &p);
972 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
973 TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE);
979 return PKCS7_add_signed_attribute(si,
980 NID_id_smime_aa_signingCertificateV2,
981 V_ASN1_SEQUENCE, seq);
983 ASN1_STRING_free(seq);
988 static ASN1_GENERALIZEDTIME *TS_RESP_set_genTime_with_precision(
989 ASN1_GENERALIZEDTIME *asn1_time, long sec, long usec,
992 time_t time_sec = (time_t)sec;
993 struct tm *tm = NULL, tm_result;
994 char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS];
995 char *p = genTime_str;
996 char *p_end = genTime_str + sizeof(genTime_str);
998 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
1001 if ((tm = OPENSSL_gmtime(&time_sec, &tm_result)) == NULL)
1005 * Put "genTime_str" in GeneralizedTime format. We work around the
1006 * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST
1007 * NOT include fractional seconds") and OpenSSL related functions to
1008 * meet the rfc3161 requirement: "GeneralizedTime syntax can include
1009 * fraction-of-second details".
1011 p += BIO_snprintf(p, p_end - p,
1012 "%04d%02d%02d%02d%02d%02d",
1013 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1014 tm->tm_hour, tm->tm_min, tm->tm_sec);
1015 if (precision > 0) {
1016 BIO_snprintf(p, 2 + precision, ".%06ld", usec);
1020 * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the
1021 * following restrictions for a DER-encoding, which OpenSSL
1022 * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't
1023 * support: "The encoding MUST terminate with a "Z" (which means
1024 * "Zulu" time). The decimal point element, if present, MUST be the
1025 * point option ".". The fractional-seconds elements, if present,
1026 * MUST omit all trailing 0's; if the elements correspond to 0, they
1027 * MUST be wholly omitted, and the decimal point element also MUST be
1031 * Remove trailing zeros. The dot guarantees the exit condition of
1032 * this loop even if all the digits are zero.
1042 if (asn1_time == NULL
1043 && (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL)
1045 if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) {
1046 ASN1_GENERALIZEDTIME_free(asn1_time);
1052 TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME);
1056 int TS_RESP_CTX_set_ess_cert_id_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
1058 ctx->ess_cert_id_digest = md;