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
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))
63 TSerr(TS_F_DEF_SERIAL_CB, ERR_R_MALLOC_FAILURE);
64 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
65 "Error during serial number generation.");
69 #if defined(OPENSSL_SYS_UNIX)
71 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
72 long *sec, long *usec)
75 if (gettimeofday(&tv, NULL) != 0) {
76 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
77 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
78 "Time is not available.");
79 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
90 static int def_time_cb(struct TS_resp_ctx *ctx, void *data,
91 long *sec, long *usec)
94 if (time(&t) == (time_t)-1) {
95 TSerr(TS_F_DEF_TIME_CB, TS_R_TIME_SYSCALL_ERROR);
96 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
97 "Time is not available.");
98 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_TIME_NOT_AVAILABLE);
109 static int def_extension_cb(struct TS_resp_ctx *ctx, X509_EXTENSION *ext,
112 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
113 "Unsupported extension.");
114 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_EXTENSION);
118 /* TS_RESP_CTX management functions. */
120 TS_RESP_CTX *TS_RESP_CTX_new(void)
124 if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
125 TSerr(TS_F_TS_RESP_CTX_NEW, ERR_R_MALLOC_FAILURE);
129 ctx->signer_md = EVP_sha256();
131 ctx->serial_cb = def_serial_cb;
132 ctx->time_cb = def_time_cb;
133 ctx->extension_cb = def_extension_cb;
138 void TS_RESP_CTX_free(TS_RESP_CTX *ctx)
143 X509_free(ctx->signer_cert);
144 EVP_PKEY_free(ctx->signer_key);
145 sk_X509_pop_free(ctx->certs, X509_free);
146 sk_ASN1_OBJECT_pop_free(ctx->policies, ASN1_OBJECT_free);
147 ASN1_OBJECT_free(ctx->default_policy);
148 sk_EVP_MD_free(ctx->mds); /* No EVP_MD_free method exists. */
149 ASN1_INTEGER_free(ctx->seconds);
150 ASN1_INTEGER_free(ctx->millis);
151 ASN1_INTEGER_free(ctx->micros);
155 int TS_RESP_CTX_set_signer_cert(TS_RESP_CTX *ctx, X509 *signer)
157 if (X509_check_purpose(signer, X509_PURPOSE_TIMESTAMP_SIGN, 0) != 1) {
158 TSerr(TS_F_TS_RESP_CTX_SET_SIGNER_CERT,
159 TS_R_INVALID_SIGNER_CERTIFICATE_PURPOSE);
162 X509_free(ctx->signer_cert);
163 ctx->signer_cert = signer;
164 X509_up_ref(ctx->signer_cert);
168 int TS_RESP_CTX_set_signer_key(TS_RESP_CTX *ctx, EVP_PKEY *key)
170 EVP_PKEY_free(ctx->signer_key);
171 ctx->signer_key = key;
172 EVP_PKEY_up_ref(ctx->signer_key);
177 int TS_RESP_CTX_set_signer_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
183 int TS_RESP_CTX_set_def_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *def_policy)
185 ASN1_OBJECT_free(ctx->default_policy);
186 if ((ctx->default_policy = OBJ_dup(def_policy)) == NULL)
190 TSerr(TS_F_TS_RESP_CTX_SET_DEF_POLICY, ERR_R_MALLOC_FAILURE);
194 int TS_RESP_CTX_set_certs(TS_RESP_CTX *ctx, STACK_OF(X509) *certs)
197 sk_X509_pop_free(ctx->certs, X509_free);
201 if ((ctx->certs = X509_chain_up_ref(certs)) == NULL) {
202 TSerr(TS_F_TS_RESP_CTX_SET_CERTS, ERR_R_MALLOC_FAILURE);
209 int TS_RESP_CTX_add_policy(TS_RESP_CTX *ctx, const ASN1_OBJECT *policy)
211 ASN1_OBJECT *copy = NULL;
213 if (ctx->policies == NULL
214 && (ctx->policies = sk_ASN1_OBJECT_new_null()) == NULL)
216 if ((copy = OBJ_dup(policy)) == NULL)
218 if (!sk_ASN1_OBJECT_push(ctx->policies, copy))
223 TSerr(TS_F_TS_RESP_CTX_ADD_POLICY, ERR_R_MALLOC_FAILURE);
224 ASN1_OBJECT_free(copy);
228 int TS_RESP_CTX_add_md(TS_RESP_CTX *ctx, const EVP_MD *md)
231 && (ctx->mds = sk_EVP_MD_new_null()) == NULL)
233 if (!sk_EVP_MD_push(ctx->mds, md))
238 TSerr(TS_F_TS_RESP_CTX_ADD_MD, ERR_R_MALLOC_FAILURE);
242 #define TS_RESP_CTX_accuracy_free(ctx) \
243 ASN1_INTEGER_free(ctx->seconds); \
244 ctx->seconds = NULL; \
245 ASN1_INTEGER_free(ctx->millis); \
246 ctx->millis = NULL; \
247 ASN1_INTEGER_free(ctx->micros); \
250 int TS_RESP_CTX_set_accuracy(TS_RESP_CTX *ctx,
251 int secs, int millis, int micros)
254 TS_RESP_CTX_accuracy_free(ctx);
256 && ((ctx->seconds = ASN1_INTEGER_new()) == NULL
257 || !ASN1_INTEGER_set(ctx->seconds, secs)))
260 && ((ctx->millis = ASN1_INTEGER_new()) == NULL
261 || !ASN1_INTEGER_set(ctx->millis, millis)))
264 && ((ctx->micros = ASN1_INTEGER_new()) == NULL
265 || !ASN1_INTEGER_set(ctx->micros, micros)))
270 TS_RESP_CTX_accuracy_free(ctx);
271 TSerr(TS_F_TS_RESP_CTX_SET_ACCURACY, ERR_R_MALLOC_FAILURE);
275 void TS_RESP_CTX_add_flags(TS_RESP_CTX *ctx, int flags)
280 void TS_RESP_CTX_set_serial_cb(TS_RESP_CTX *ctx, TS_serial_cb cb, void *data)
283 ctx->serial_cb_data = data;
286 void TS_RESP_CTX_set_time_cb(TS_RESP_CTX *ctx, TS_time_cb cb, void *data)
289 ctx->time_cb_data = data;
292 void TS_RESP_CTX_set_extension_cb(TS_RESP_CTX *ctx,
293 TS_extension_cb cb, void *data)
295 ctx->extension_cb = cb;
296 ctx->extension_cb_data = data;
299 int TS_RESP_CTX_set_status_info(TS_RESP_CTX *ctx,
300 int status, const char *text)
302 TS_STATUS_INFO *si = NULL;
303 ASN1_UTF8STRING *utf8_text = NULL;
306 if ((si = TS_STATUS_INFO_new()) == NULL)
308 if (!ASN1_INTEGER_set(si->status, status))
311 if ((utf8_text = ASN1_UTF8STRING_new()) == NULL
312 || !ASN1_STRING_set(utf8_text, text, strlen(text)))
315 && (si->text = sk_ASN1_UTF8STRING_new_null()) == NULL)
317 if (!sk_ASN1_UTF8STRING_push(si->text, utf8_text))
319 utf8_text = NULL; /* Ownership is lost. */
321 if (!TS_RESP_set_status_info(ctx->response, si))
326 TSerr(TS_F_TS_RESP_CTX_SET_STATUS_INFO, ERR_R_MALLOC_FAILURE);
327 TS_STATUS_INFO_free(si);
328 ASN1_UTF8STRING_free(utf8_text);
332 int TS_RESP_CTX_set_status_info_cond(TS_RESP_CTX *ctx,
333 int status, const char *text)
336 TS_STATUS_INFO *si = ctx->response->status_info;
338 if (ASN1_INTEGER_get(si->status) == TS_STATUS_GRANTED) {
339 ret = TS_RESP_CTX_set_status_info(ctx, status, text);
344 int TS_RESP_CTX_add_failure_info(TS_RESP_CTX *ctx, int failure)
346 TS_STATUS_INFO *si = ctx->response->status_info;
347 if (si->failure_info == NULL
348 && (si->failure_info = ASN1_BIT_STRING_new()) == NULL)
350 if (!ASN1_BIT_STRING_set_bit(si->failure_info, failure, 1))
354 TSerr(TS_F_TS_RESP_CTX_ADD_FAILURE_INFO, ERR_R_MALLOC_FAILURE);
358 TS_REQ *TS_RESP_CTX_get_request(TS_RESP_CTX *ctx)
363 TS_TST_INFO *TS_RESP_CTX_get_tst_info(TS_RESP_CTX *ctx)
365 return ctx->tst_info;
368 int TS_RESP_CTX_set_clock_precision_digits(TS_RESP_CTX *ctx,
371 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
373 ctx->clock_precision_digits = precision;
377 /* Main entry method of the response generation. */
378 TS_RESP *TS_RESP_create_response(TS_RESP_CTX *ctx, BIO *req_bio)
384 ts_RESP_CTX_init(ctx);
386 if ((ctx->response = TS_RESP_new()) == NULL) {
387 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, ERR_R_MALLOC_FAILURE);
390 if ((ctx->request = d2i_TS_REQ_bio(req_bio, NULL)) == NULL) {
391 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
392 "Bad request format or system error.");
393 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
396 if (!TS_RESP_CTX_set_status_info(ctx, TS_STATUS_GRANTED, NULL))
398 if (!ts_RESP_check_request(ctx))
400 if ((policy = ts_RESP_get_policy(ctx)) == NULL)
402 if ((ctx->tst_info = ts_RESP_create_tst_info(ctx, policy)) == NULL)
404 if (!ts_RESP_process_extensions(ctx))
406 if (!ts_RESP_sign(ctx))
412 TSerr(TS_F_TS_RESP_CREATE_RESPONSE, TS_R_RESPONSE_SETUP_ERROR);
413 if (ctx->response != NULL) {
414 if (TS_RESP_CTX_set_status_info_cond(ctx,
416 "Error during response "
417 "generation.") == 0) {
418 TS_RESP_free(ctx->response);
419 ctx->response = NULL;
423 response = ctx->response;
424 ctx->response = NULL; /* Ownership will be returned to caller. */
425 ts_RESP_CTX_cleanup(ctx);
429 /* Initializes the variable part of the context. */
430 static void ts_RESP_CTX_init(TS_RESP_CTX *ctx)
433 ctx->response = NULL;
434 ctx->tst_info = NULL;
437 /* Cleans up the variable part of the context. */
438 static void ts_RESP_CTX_cleanup(TS_RESP_CTX *ctx)
440 TS_REQ_free(ctx->request);
442 TS_RESP_free(ctx->response);
443 ctx->response = NULL;
444 TS_TST_INFO_free(ctx->tst_info);
445 ctx->tst_info = NULL;
448 /* Checks the format and content of the request. */
449 static int ts_RESP_check_request(TS_RESP_CTX *ctx)
451 TS_REQ *request = ctx->request;
452 TS_MSG_IMPRINT *msg_imprint;
455 const ASN1_OCTET_STRING *digest;
456 const EVP_MD *md = NULL;
459 if (TS_REQ_get_version(request) != 1) {
460 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
461 "Bad request version.");
462 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_REQUEST);
466 msg_imprint = request->msg_imprint;
467 md_alg = msg_imprint->hash_algo;
468 md_alg_id = OBJ_obj2nid(md_alg->algorithm);
469 for (i = 0; !md && i < sk_EVP_MD_num(ctx->mds); ++i) {
470 const EVP_MD *current_md = sk_EVP_MD_value(ctx->mds, i);
471 if (md_alg_id == EVP_MD_type(current_md))
475 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
476 "Message digest algorithm is "
478 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
482 if (md_alg->parameter && ASN1_TYPE_get(md_alg->parameter) != V_ASN1_NULL) {
483 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
484 "Superfluous message digest "
486 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_ALG);
489 digest = msg_imprint->hashed_msg;
490 if (digest->length != EVP_MD_size(md)) {
491 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
492 "Bad message digest.");
493 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_BAD_DATA_FORMAT);
500 /* Returns the TSA policy based on the requested and acceptable policies. */
501 static ASN1_OBJECT *ts_RESP_get_policy(TS_RESP_CTX *ctx)
503 ASN1_OBJECT *requested = ctx->request->policy_id;
504 ASN1_OBJECT *policy = NULL;
507 if (ctx->default_policy == NULL) {
508 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_INVALID_NULL_POINTER);
511 if (!requested || !OBJ_cmp(requested, ctx->default_policy))
512 policy = ctx->default_policy;
514 /* Check if the policy is acceptable. */
515 for (i = 0; !policy && i < sk_ASN1_OBJECT_num(ctx->policies); ++i) {
516 ASN1_OBJECT *current = sk_ASN1_OBJECT_value(ctx->policies, i);
517 if (!OBJ_cmp(requested, current))
521 TSerr(TS_F_TS_RESP_GET_POLICY, TS_R_UNACCEPTABLE_POLICY);
522 TS_RESP_CTX_set_status_info(ctx, TS_STATUS_REJECTION,
523 "Requested policy is not " "supported.");
524 TS_RESP_CTX_add_failure_info(ctx, TS_INFO_UNACCEPTED_POLICY);
529 /* Creates the TS_TST_INFO object based on the settings of the context. */
530 static TS_TST_INFO *ts_RESP_create_tst_info(TS_RESP_CTX *ctx,
534 TS_TST_INFO *tst_info = NULL;
535 ASN1_INTEGER *serial = NULL;
536 ASN1_GENERALIZEDTIME *asn1_time = NULL;
538 TS_ACCURACY *accuracy = NULL;
539 const ASN1_INTEGER *nonce;
540 GENERAL_NAME *tsa_name = NULL;
542 if ((tst_info = TS_TST_INFO_new()) == NULL)
544 if (!TS_TST_INFO_set_version(tst_info, 1))
546 if (!TS_TST_INFO_set_policy_id(tst_info, policy))
548 if (!TS_TST_INFO_set_msg_imprint(tst_info, ctx->request->msg_imprint))
550 if ((serial = ctx->serial_cb(ctx, ctx->serial_cb_data)) == NULL
551 || !TS_TST_INFO_set_serial(tst_info, serial))
553 if (!ctx->time_cb(ctx, ctx->time_cb_data, &sec, &usec)
555 TS_RESP_set_genTime_with_precision(NULL, sec, usec,
556 ctx->clock_precision_digits)) == NULL
557 || !TS_TST_INFO_set_time(tst_info, asn1_time))
560 if ((ctx->seconds || ctx->millis || ctx->micros)
561 && (accuracy = TS_ACCURACY_new()) == NULL)
563 if (ctx->seconds && !TS_ACCURACY_set_seconds(accuracy, ctx->seconds))
565 if (ctx->millis && !TS_ACCURACY_set_millis(accuracy, ctx->millis))
567 if (ctx->micros && !TS_ACCURACY_set_micros(accuracy, ctx->micros))
569 if (accuracy && !TS_TST_INFO_set_accuracy(tst_info, accuracy))
572 if ((ctx->flags & TS_ORDERING)
573 && !TS_TST_INFO_set_ordering(tst_info, 1))
576 if ((nonce = ctx->request->nonce) != NULL
577 && !TS_TST_INFO_set_nonce(tst_info, nonce))
580 if (ctx->flags & TS_TSA_NAME) {
581 if ((tsa_name = GENERAL_NAME_new()) == NULL)
583 tsa_name->type = GEN_DIRNAME;
585 X509_NAME_dup(X509_get_subject_name(ctx->signer_cert));
586 if (!tsa_name->d.dirn)
588 if (!TS_TST_INFO_set_tsa(tst_info, tsa_name))
595 TS_TST_INFO_free(tst_info);
597 TSerr(TS_F_TS_RESP_CREATE_TST_INFO, TS_R_TST_INFO_SETUP_ERROR);
598 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
599 "Error during TSTInfo "
602 GENERAL_NAME_free(tsa_name);
603 TS_ACCURACY_free(accuracy);
604 ASN1_GENERALIZEDTIME_free(asn1_time);
605 ASN1_INTEGER_free(serial);
610 /* Processing the extensions of the request. */
611 static int ts_RESP_process_extensions(TS_RESP_CTX *ctx)
613 STACK_OF(X509_EXTENSION) *exts = ctx->request->extensions;
617 for (i = 0; ok && i < sk_X509_EXTENSION_num(exts); ++i) {
618 X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
620 * The last argument was previously (void *)ctx->extension_cb,
621 * but ISO C doesn't permit converting a function pointer to void *.
622 * For lack of better information, I'm placing a NULL there instead.
623 * The callback can pick its own address out from the ctx anyway...
625 ok = (*ctx->extension_cb) (ctx, ext, NULL);
631 /* Functions for signing the TS_TST_INFO structure of the context. */
632 static int ts_RESP_sign(TS_RESP_CTX *ctx)
636 PKCS7_SIGNER_INFO *si;
637 STACK_OF(X509) *certs; /* Certificates to include in sc. */
638 ESS_SIGNING_CERT_V2 *sc2 = NULL;
639 ESS_SIGNING_CERT *sc = NULL;
644 if (!X509_check_private_key(ctx->signer_cert, ctx->signer_key)) {
645 TSerr(TS_F_TS_RESP_SIGN, TS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
649 if ((p7 = PKCS7_new()) == NULL) {
650 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
653 if (!PKCS7_set_type(p7, NID_pkcs7_signed))
655 if (!ASN1_INTEGER_set(p7->d.sign->version, 3))
658 if (ctx->request->cert_req) {
659 PKCS7_add_certificate(p7, ctx->signer_cert);
661 for (i = 0; i < sk_X509_num(ctx->certs); ++i) {
662 X509 *cert = sk_X509_value(ctx->certs, i);
663 PKCS7_add_certificate(p7, cert);
668 if ((si = PKCS7_add_signature(p7, ctx->signer_cert,
669 ctx->signer_key, ctx->signer_md)) == NULL) {
670 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNATURE_ERROR);
674 oid = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
675 if (!PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
676 V_ASN1_OBJECT, oid)) {
677 TSerr(TS_F_TS_RESP_SIGN, TS_R_PKCS7_ADD_SIGNED_ATTR_ERROR);
681 certs = ctx->flags & TS_ESS_CERT_ID_CHAIN ? ctx->certs : NULL;
682 if (ctx->ess_cert_id_digest == NULL
683 || ctx->ess_cert_id_digest == EVP_sha1()) {
684 if ((sc = ess_SIGNING_CERT_new_init(ctx->signer_cert, certs)) == NULL)
687 if (!ess_add_signing_cert(si, sc)) {
688 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_ERROR);
692 sc2 = ess_signing_cert_v2_new_init(ctx->ess_cert_id_digest,
693 ctx->signer_cert, certs);
697 if (!ess_add_signing_cert_v2(si, sc2)) {
698 TSerr(TS_F_TS_RESP_SIGN, TS_R_ESS_ADD_SIGNING_CERT_V2_ERROR);
703 if (!ts_TST_INFO_content_new(p7))
705 if ((p7bio = PKCS7_dataInit(p7, NULL)) == NULL) {
706 TSerr(TS_F_TS_RESP_SIGN, ERR_R_MALLOC_FAILURE);
709 if (!i2d_TS_TST_INFO_bio(p7bio, ctx->tst_info)) {
710 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
713 if (!PKCS7_dataFinal(p7, p7bio)) {
714 TSerr(TS_F_TS_RESP_SIGN, TS_R_TS_DATASIGN);
717 TS_RESP_set_tst_info(ctx->response, p7, ctx->tst_info);
718 p7 = NULL; /* Ownership is lost. */
719 ctx->tst_info = NULL; /* Ownership is lost. */
724 TS_RESP_CTX_set_status_info_cond(ctx, TS_STATUS_REJECTION,
725 "Error during signature "
728 ESS_SIGNING_CERT_V2_free(sc2);
729 ESS_SIGNING_CERT_free(sc);
734 static ESS_SIGNING_CERT *ess_SIGNING_CERT_new_init(X509 *signcert,
735 STACK_OF(X509) *certs)
738 ESS_SIGNING_CERT *sc = NULL;
741 if ((sc = ESS_SIGNING_CERT_new()) == NULL)
743 if (sc->cert_ids == NULL
744 && (sc->cert_ids = sk_ESS_CERT_ID_new_null()) == NULL)
747 if ((cid = ess_CERT_ID_new_init(signcert, 0)) == NULL
748 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
750 for (i = 0; i < sk_X509_num(certs); ++i) {
751 X509 *cert = sk_X509_value(certs, i);
752 if ((cid = ess_CERT_ID_new_init(cert, 1)) == NULL
753 || !sk_ESS_CERT_ID_push(sc->cert_ids, cid))
759 ESS_SIGNING_CERT_free(sc);
760 TSerr(TS_F_ESS_SIGNING_CERT_NEW_INIT, ERR_R_MALLOC_FAILURE);
764 static ESS_CERT_ID *ess_CERT_ID_new_init(X509 *cert, int issuer_needed)
766 ESS_CERT_ID *cid = NULL;
767 GENERAL_NAME *name = NULL;
768 unsigned char cert_sha1[SHA_DIGEST_LENGTH];
770 /* Call for side-effect of computing hash and caching extensions */
771 X509_check_purpose(cert, -1, 0);
772 if ((cid = ESS_CERT_ID_new()) == NULL)
774 X509_digest(cert, EVP_sha1(), cert_sha1, NULL);
775 if (!ASN1_OCTET_STRING_set(cid->hash, cert_sha1, SHA_DIGEST_LENGTH))
778 /* Setting the issuer/serial if requested. */
780 if (cid->issuer_serial == NULL
781 && (cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
783 if ((name = GENERAL_NAME_new()) == NULL)
785 name->type = GEN_DIRNAME;
786 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
788 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
790 name = NULL; /* Ownership is lost. */
791 ASN1_INTEGER_free(cid->issuer_serial->serial);
792 if (!(cid->issuer_serial->serial =
793 ASN1_INTEGER_dup(X509_get_serialNumber(cert))))
799 GENERAL_NAME_free(name);
800 ESS_CERT_ID_free(cid);
801 TSerr(TS_F_ESS_CERT_ID_NEW_INIT, ERR_R_MALLOC_FAILURE);
805 static int ts_TST_INFO_content_new(PKCS7 *p7)
808 ASN1_OCTET_STRING *octet_string = NULL;
810 /* Create new encapsulated NID_id_smime_ct_TSTInfo content. */
811 if ((ret = PKCS7_new()) == NULL)
813 if ((ret->d.other = ASN1_TYPE_new()) == NULL)
815 ret->type = OBJ_nid2obj(NID_id_smime_ct_TSTInfo);
816 if ((octet_string = ASN1_OCTET_STRING_new()) == NULL)
818 ASN1_TYPE_set(ret->d.other, V_ASN1_OCTET_STRING, octet_string);
821 /* Add encapsulated content to signed PKCS7 structure. */
822 if (!PKCS7_set_content(p7, ret))
827 ASN1_OCTET_STRING_free(octet_string);
832 static int ess_add_signing_cert(PKCS7_SIGNER_INFO *si, ESS_SIGNING_CERT *sc)
834 ASN1_STRING *seq = NULL;
835 unsigned char *p, *pp = NULL;
838 len = i2d_ESS_SIGNING_CERT(sc, NULL);
839 if ((pp = OPENSSL_malloc(len)) == NULL) {
840 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
844 i2d_ESS_SIGNING_CERT(sc, &p);
845 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
846 TSerr(TS_F_ESS_ADD_SIGNING_CERT, ERR_R_MALLOC_FAILURE);
851 return PKCS7_add_signed_attribute(si,
852 NID_id_smime_aa_signingCertificate,
853 V_ASN1_SEQUENCE, seq);
855 ASN1_STRING_free(seq);
861 static ESS_SIGNING_CERT_V2 *ess_signing_cert_v2_new_init(const EVP_MD *hash_alg,
863 STACK_OF(X509) *certs)
865 ESS_CERT_ID_V2 *cid = NULL;
866 ESS_SIGNING_CERT_V2 *sc = NULL;
869 if ((sc = ESS_SIGNING_CERT_V2_new()) == NULL)
871 if ((cid = ess_cert_id_v2_new_init(hash_alg, signcert, 0)) == NULL)
873 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
877 for (i = 0; i < sk_X509_num(certs); ++i) {
878 X509 *cert = sk_X509_value(certs, i);
880 if ((cid = ess_cert_id_v2_new_init(hash_alg, cert, 1)) == NULL)
882 if (!sk_ESS_CERT_ID_V2_push(sc->cert_ids, cid))
889 ESS_SIGNING_CERT_V2_free(sc);
890 ESS_CERT_ID_V2_free(cid);
891 TSerr(TS_F_ESS_SIGNING_CERT_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
895 static ESS_CERT_ID_V2 *ess_cert_id_v2_new_init(const EVP_MD *hash_alg,
896 X509 *cert, int issuer_needed)
898 ESS_CERT_ID_V2 *cid = NULL;
899 GENERAL_NAME *name = NULL;
900 unsigned char hash[EVP_MAX_MD_SIZE];
901 unsigned int hash_len = sizeof(hash);
902 X509_ALGOR *alg = NULL;
904 memset(hash, 0, sizeof(hash));
906 if ((cid = ESS_CERT_ID_V2_new()) == NULL)
909 if (hash_alg != EVP_sha256()) {
910 alg = X509_ALGOR_new();
913 X509_ALGOR_set_md(alg, hash_alg);
914 if (alg->algorithm == NULL)
919 cid->hash_alg = NULL;
922 if (!X509_digest(cert, hash_alg, hash, &hash_len))
925 if (!ASN1_OCTET_STRING_set(cid->hash, hash, hash_len))
929 if ((cid->issuer_serial = ESS_ISSUER_SERIAL_new()) == NULL)
931 if ((name = GENERAL_NAME_new()) == NULL)
933 name->type = GEN_DIRNAME;
934 if ((name->d.dirn = X509_NAME_dup(X509_get_issuer_name(cert))) == NULL)
936 if (!sk_GENERAL_NAME_push(cid->issuer_serial->issuer, name))
938 name = NULL; /* Ownership is lost. */
939 ASN1_INTEGER_free(cid->issuer_serial->serial);
940 cid->issuer_serial->serial =
941 ASN1_INTEGER_dup(X509_get_serialNumber(cert));
942 if (cid->issuer_serial->serial == NULL)
948 X509_ALGOR_free(alg);
949 GENERAL_NAME_free(name);
950 ESS_CERT_ID_V2_free(cid);
951 TSerr(TS_F_ESS_CERT_ID_V2_NEW_INIT, ERR_R_MALLOC_FAILURE);
955 static int ess_add_signing_cert_v2(PKCS7_SIGNER_INFO *si,
956 ESS_SIGNING_CERT_V2 *sc)
958 ASN1_STRING *seq = NULL;
959 unsigned char *p, *pp = NULL;
960 int len = i2d_ESS_SIGNING_CERT_V2(sc, NULL);
962 if ((pp = OPENSSL_malloc(len)) == NULL) {
963 TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE);
968 i2d_ESS_SIGNING_CERT_V2(sc, &p);
969 if ((seq = ASN1_STRING_new()) == NULL || !ASN1_STRING_set(seq, pp, len)) {
970 TSerr(TS_F_ESS_ADD_SIGNING_CERT_V2, ERR_R_MALLOC_FAILURE);
976 return PKCS7_add_signed_attribute(si,
977 NID_id_smime_aa_signingCertificateV2,
978 V_ASN1_SEQUENCE, seq);
980 ASN1_STRING_free(seq);
985 static ASN1_GENERALIZEDTIME *TS_RESP_set_genTime_with_precision(
986 ASN1_GENERALIZEDTIME *asn1_time, long sec, long usec,
989 time_t time_sec = (time_t)sec;
990 struct tm *tm = NULL, tm_result;
991 char genTime_str[17 + TS_MAX_CLOCK_PRECISION_DIGITS];
992 char *p = genTime_str;
993 char *p_end = genTime_str + sizeof(genTime_str);
995 if (precision > TS_MAX_CLOCK_PRECISION_DIGITS)
998 if ((tm = OPENSSL_gmtime(&time_sec, &tm_result)) == NULL)
1002 * Put "genTime_str" in GeneralizedTime format. We work around the
1003 * restrictions imposed by rfc3280 (i.e. "GeneralizedTime values MUST
1004 * NOT include fractional seconds") and OpenSSL related functions to
1005 * meet the rfc3161 requirement: "GeneralizedTime syntax can include
1006 * fraction-of-second details".
1008 p += BIO_snprintf(p, p_end - p,
1009 "%04d%02d%02d%02d%02d%02d",
1010 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1011 tm->tm_hour, tm->tm_min, tm->tm_sec);
1012 if (precision > 0) {
1013 BIO_snprintf(p, 2 + precision, ".%06ld", usec);
1017 * To make things a bit harder, X.690 | ISO/IEC 8825-1 provides the
1018 * following restrictions for a DER-encoding, which OpenSSL
1019 * (specifically ASN1_GENERALIZEDTIME_check() function) doesn't
1020 * support: "The encoding MUST terminate with a "Z" (which means
1021 * "Zulu" time). The decimal point element, if present, MUST be the
1022 * point option ".". The fractional-seconds elements, if present,
1023 * MUST omit all trailing 0's; if the elements correspond to 0, they
1024 * MUST be wholly omitted, and the decimal point element also MUST be
1028 * Remove trailing zeros. The dot guarantees the exit condition of
1029 * this loop even if all the digits are zero.
1039 if (asn1_time == NULL
1040 && (asn1_time = ASN1_GENERALIZEDTIME_new()) == NULL)
1042 if (!ASN1_GENERALIZEDTIME_set_string(asn1_time, genTime_str)) {
1043 ASN1_GENERALIZEDTIME_free(asn1_time);
1049 TSerr(TS_F_TS_RESP_SET_GENTIME_WITH_PRECISION, TS_R_COULD_NOT_SET_TIME);
1053 int TS_RESP_CTX_set_ess_cert_id_digest(TS_RESP_CTX *ctx, const EVP_MD *md)
1055 ctx->ess_cert_id_digest = md;