1 /* crypto/cms/cms_sd.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
56 #include <openssl/asn1t.h>
57 #include <openssl/pem.h>
58 #include <openssl/x509v3.h>
59 #include <openssl/err.h>
60 #include <openssl/cms.h>
62 #include "asn1_locl.h"
64 /* CMS SignedData Utilities */
66 DECLARE_ASN1_ITEM(CMS_SignedData)
68 static CMS_SignedData *cms_get0_signed(CMS_ContentInfo *cms)
70 if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_signed) {
71 CMSerr(CMS_F_CMS_GET0_SIGNED, CMS_R_CONTENT_TYPE_NOT_SIGNED_DATA);
74 return cms->d.signedData;
77 static CMS_SignedData *cms_signed_data_init(CMS_ContentInfo *cms)
79 if (cms->d.other == NULL) {
80 cms->d.signedData = M_ASN1_new_of(CMS_SignedData);
81 if (!cms->d.signedData) {
82 CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE);
85 cms->d.signedData->version = 1;
86 cms->d.signedData->encapContentInfo->eContentType =
87 OBJ_nid2obj(NID_pkcs7_data);
88 cms->d.signedData->encapContentInfo->partial = 1;
89 ASN1_OBJECT_free(cms->contentType);
90 cms->contentType = OBJ_nid2obj(NID_pkcs7_signed);
91 return cms->d.signedData;
93 return cms_get0_signed(cms);
96 /* Just initialize SignedData e.g. for certs only structure */
98 int CMS_SignedData_init(CMS_ContentInfo *cms)
100 if (cms_signed_data_init(cms))
106 /* Check structures and fixup version numbers (if necessary) */
108 static void cms_sd_set_version(CMS_SignedData *sd)
111 CMS_CertificateChoices *cch;
112 CMS_RevocationInfoChoice *rch;
115 for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++) {
116 cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
117 if (cch->type == CMS_CERTCHOICE_OTHER) {
120 } else if (cch->type == CMS_CERTCHOICE_V2ACERT) {
123 } else if (cch->type == CMS_CERTCHOICE_V1ACERT) {
129 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++) {
130 rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i);
131 if (rch->type == CMS_REVCHOICE_OTHER) {
137 if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data)
138 && (sd->version < 3))
141 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) {
142 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
143 if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) {
148 } else if (si->version < 1)
157 /* Copy an existing messageDigest value */
159 static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
161 STACK_OF(CMS_SignerInfo) *sinfos;
162 CMS_SignerInfo *sitmp;
164 sinfos = CMS_get0_SignerInfos(cms);
165 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
166 ASN1_OCTET_STRING *messageDigest;
167 sitmp = sk_CMS_SignerInfo_value(sinfos, i);
170 if (CMS_signed_get_attr_count(sitmp) < 0)
172 if (OBJ_cmp(si->digestAlgorithm->algorithm,
173 sitmp->digestAlgorithm->algorithm))
175 messageDigest = CMS_signed_get0_data_by_OBJ(sitmp,
177 (NID_pkcs9_messageDigest),
178 -3, V_ASN1_OCTET_STRING);
179 if (!messageDigest) {
180 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST,
181 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
185 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
192 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST);
196 int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type)
199 case CMS_SIGNERINFO_ISSUER_SERIAL:
200 sid->d.issuerAndSerialNumber =
201 M_ASN1_new_of(CMS_IssuerAndSerialNumber);
202 if (!sid->d.issuerAndSerialNumber)
204 if (!X509_NAME_set(&sid->d.issuerAndSerialNumber->issuer,
205 X509_get_issuer_name(cert)))
207 if (!ASN1_STRING_copy(sid->d.issuerAndSerialNumber->serialNumber,
208 X509_get_serialNumber(cert)))
212 case CMS_SIGNERINFO_KEYIDENTIFIER:
214 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER,
215 CMS_R_CERTIFICATE_HAS_NO_KEYID);
218 sid->d.subjectKeyIdentifier = ASN1_STRING_dup(cert->skid);
219 if (!sid->d.subjectKeyIdentifier)
224 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID);
233 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, ERR_R_MALLOC_FAILURE);
238 int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
239 ASN1_OCTET_STRING **keyid,
243 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL) {
245 *issuer = sid->d.issuerAndSerialNumber->issuer;
247 *sno = sid->d.issuerAndSerialNumber->serialNumber;
248 } else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) {
250 *keyid = sid->d.subjectKeyIdentifier;
256 int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert)
259 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL) {
260 ret = X509_NAME_cmp(sid->d.issuerAndSerialNumber->issuer,
261 X509_get_issuer_name(cert));
264 return ASN1_INTEGER_cmp(sid->d.issuerAndSerialNumber->serialNumber,
265 X509_get_serialNumber(cert));
266 } else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) {
267 X509_check_purpose(cert, -1, -1);
270 return ASN1_OCTET_STRING_cmp(sid->d.subjectKeyIdentifier, cert->skid);
275 CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
276 X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
280 CMS_SignerInfo *si = NULL;
283 if (!X509_check_private_key(signer, pk)) {
284 CMSerr(CMS_F_CMS_ADD1_SIGNER,
285 CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
288 sd = cms_signed_data_init(cms);
291 si = M_ASN1_new_of(CMS_SignerInfo);
294 X509_check_purpose(signer, -1, -1);
296 CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
297 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
302 if (flags & CMS_USE_KEYID) {
306 type = CMS_SIGNERINFO_KEYIDENTIFIER;
308 type = CMS_SIGNERINFO_ISSUER_SERIAL;
312 if (!cms_set1_SignerIdentifier(si->sid, signer, type))
317 if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
319 md = EVP_get_digestbynid(def_nid);
321 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
327 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
331 cms_DigestAlgorithm_set(si->digestAlgorithm, md);
333 /* See if digest is present in digestAlgorithms */
334 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) {
336 alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
337 X509_ALGOR_get0(&aoid, NULL, NULL, alg);
338 if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
342 if (i == sk_X509_ALGOR_num(sd->digestAlgorithms)) {
343 alg = X509_ALGOR_new();
346 cms_DigestAlgorithm_set(alg, md);
347 if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg)) {
348 X509_ALGOR_free(alg);
353 if (pk->ameth && pk->ameth->pkey_ctrl) {
354 i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_SIGN, 0, si);
356 CMSerr(CMS_F_CMS_ADD1_SIGNER,
357 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
361 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_CTRL_FAILURE);
366 if (!(flags & CMS_NOATTR)) {
368 * Initialialize signed attributes strutucture so other attributes
369 * such as signing time etc are added later even if we add none here.
371 if (!si->signedAttrs) {
372 si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
373 if (!si->signedAttrs)
377 if (!(flags & CMS_NOSMIMECAP)) {
378 STACK_OF(X509_ALGOR) *smcap = NULL;
379 i = CMS_add_standard_smimecap(&smcap);
381 i = CMS_add_smimecap(si, smcap);
382 sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
386 if (flags & CMS_REUSE_DIGEST) {
387 if (!cms_copy_messageDigest(cms, si))
389 if (!(flags & CMS_PARTIAL) && !CMS_SignerInfo_sign(si))
394 if (!(flags & CMS_NOCERTS)) {
395 /* NB ignore -1 return for duplicate cert */
396 if (!CMS_add1_cert(cms, signer))
400 if (!sd->signerInfos)
401 sd->signerInfos = sk_CMS_SignerInfo_new_null();
402 if (!sd->signerInfos || !sk_CMS_SignerInfo_push(sd->signerInfos, si))
408 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
411 M_ASN1_free_of(si, CMS_SignerInfo);
416 static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
423 tt = X509_gmtime_adj(NULL, 0);
428 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
429 tt->type, tt, -1) <= 0)
440 CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
446 STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms)
449 sd = cms_get0_signed(cms);
452 return sd->signerInfos;
455 STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms)
457 STACK_OF(X509) *signers = NULL;
458 STACK_OF(CMS_SignerInfo) *sinfos;
461 sinfos = CMS_get0_SignerInfos(cms);
462 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
463 si = sk_CMS_SignerInfo_value(sinfos, i);
466 signers = sk_X509_new_null();
470 if (!sk_X509_push(signers, si->signer)) {
471 sk_X509_free(signers);
479 void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer)
482 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
484 EVP_PKEY_free(si->pkey);
485 si->pkey = X509_get_pubkey(signer);
488 X509_free(si->signer);
492 int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si,
493 ASN1_OCTET_STRING **keyid,
494 X509_NAME **issuer, ASN1_INTEGER **sno)
496 return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno);
499 int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert)
501 return cms_SignerIdentifier_cert_cmp(si->sid, cert);
504 int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts,
509 CMS_CertificateChoices *cch;
510 STACK_OF(CMS_CertificateChoices) *certs;
514 sd = cms_get0_signed(cms);
517 certs = sd->certificates;
518 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) {
519 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
523 for (j = 0; j < sk_X509_num(scerts); j++) {
524 x = sk_X509_value(scerts, j);
525 if (CMS_SignerInfo_cert_cmp(si, x) == 0) {
526 CMS_SignerInfo_set1_signer_cert(si, x);
532 if (si->signer || (flags & CMS_NOINTERN))
535 for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++) {
536 cch = sk_CMS_CertificateChoices_value(certs, j);
539 x = cch->d.certificate;
540 if (CMS_SignerInfo_cert_cmp(si, x) == 0) {
541 CMS_SignerInfo_set1_signer_cert(si, x);
550 void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk,
551 X509 **signer, X509_ALGOR **pdig,
557 *signer = si->signer;
559 *pdig = si->digestAlgorithm;
561 *psig = si->signatureAlgorithm;
564 static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
565 CMS_SignerInfo *si, BIO *chain)
569 EVP_MD_CTX_init(&mctx);
572 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
576 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
580 * If any signed attributes calculate and add messageDigest attribute
583 if (CMS_signed_get_attr_count(si) >= 0) {
585 cms->d.signedData->encapContentInfo->eContentType;
586 unsigned char md[EVP_MAX_MD_SIZE];
588 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
590 if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
591 V_ASN1_OCTET_STRING, md, mdlen))
593 /* Copy content type across */
594 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
595 V_ASN1_OBJECT, ctype, -1) <= 0)
597 if (!CMS_SignerInfo_sign(si))
602 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
604 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
607 if (!EVP_SignFinal(&mctx, sig, &siglen, si->pkey)) {
608 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR);
612 ASN1_STRING_set0(si->signature, sig, siglen);
618 EVP_MD_CTX_cleanup(&mctx);
623 int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
625 STACK_OF(CMS_SignerInfo) *sinfos;
628 sinfos = CMS_get0_SignerInfos(cms);
629 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
630 si = sk_CMS_SignerInfo_value(sinfos, i);
631 if (!cms_SignerInfo_content_sign(cms, si, chain))
634 cms->d.signedData->encapContentInfo->partial = 0;
638 int CMS_SignerInfo_sign(CMS_SignerInfo *si)
642 unsigned char *abuf = NULL;
645 const EVP_MD *md = NULL;
647 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
651 EVP_MD_CTX_init(&mctx);
653 if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0) {
654 if (!cms_add1_signingTime(si, NULL))
658 if (EVP_DigestSignInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
661 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
662 EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0) {
663 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
667 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf,
668 ASN1_ITEM_rptr(CMS_Attributes_Sign));
671 if (EVP_DigestSignUpdate(&mctx, abuf, alen) <= 0)
673 if (EVP_DigestSignFinal(&mctx, NULL, &siglen) <= 0)
676 abuf = OPENSSL_malloc(siglen);
679 if (EVP_DigestSignFinal(&mctx, abuf, &siglen) <= 0)
682 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
683 EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0) {
684 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
688 EVP_MD_CTX_cleanup(&mctx);
690 ASN1_STRING_set0(si->signature, abuf, siglen);
697 EVP_MD_CTX_cleanup(&mctx);
702 int CMS_SignerInfo_verify(CMS_SignerInfo *si)
706 unsigned char *abuf = NULL;
708 const EVP_MD *md = NULL;
711 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
715 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
718 EVP_MD_CTX_init(&mctx);
719 if (EVP_DigestVerifyInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
722 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf,
723 ASN1_ITEM_rptr(CMS_Attributes_Verify));
726 r = EVP_DigestVerifyUpdate(&mctx, abuf, alen);
732 r = EVP_DigestVerifyFinal(&mctx,
733 si->signature->data, si->signature->length);
735 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
737 EVP_MD_CTX_cleanup(&mctx);
741 /* Create a chain of digest BIOs from a CMS ContentInfo */
743 BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
748 sd = cms_get0_signed(cms);
751 if (cms->d.signedData->encapContentInfo->partial)
752 cms_sd_set_version(sd);
753 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) {
754 X509_ALGOR *digestAlgorithm;
756 digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
757 mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
761 BIO_push(chain, mdbio);
772 int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
774 ASN1_OCTET_STRING *os = NULL;
777 EVP_MD_CTX_init(&mctx);
778 /* If we have any signed attributes look for messageDigest value */
779 if (CMS_signed_get_attr_count(si) >= 0) {
780 os = CMS_signed_get0_data_by_OBJ(si,
781 OBJ_nid2obj(NID_pkcs9_messageDigest),
782 -3, V_ASN1_OCTET_STRING);
784 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
785 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
790 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
793 /* If messageDigest found compare it */
796 unsigned char mval[EVP_MAX_MD_SIZE];
798 if (EVP_DigestFinal_ex(&mctx, mval, &mlen) <= 0) {
799 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
800 CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
803 if (mlen != (unsigned int)os->length) {
804 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
805 CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
809 if (memcmp(mval, os->data, mlen)) {
810 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
811 CMS_R_VERIFICATION_FAILURE);
816 r = EVP_VerifyFinal(&mctx, si->signature->data,
817 si->signature->length, si->pkey);
819 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
820 CMS_R_VERIFICATION_FAILURE);
826 EVP_MD_CTX_cleanup(&mctx);
831 int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
833 unsigned char *smder = NULL;
835 smderlen = i2d_X509_ALGORS(algs, &smder);
838 r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
839 V_ASN1_SEQUENCE, smder, smderlen);
844 int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
845 int algnid, int keysize)
848 ASN1_INTEGER *key = NULL;
850 key = ASN1_INTEGER_new();
851 if (!key || !ASN1_INTEGER_set(key, keysize))
854 alg = X509_ALGOR_new();
857 ASN1_INTEGER_free(key);
861 X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
862 key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
864 *algs = sk_X509_ALGOR_new_null();
865 if (!*algs || !sk_X509_ALGOR_push(*algs, alg)) {
866 X509_ALGOR_free(alg);
872 /* Check to see if a cipher exists and if so add S/MIME capabilities */
874 static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
876 if (EVP_get_cipherbynid(nid))
877 return CMS_add_simple_smimecap(sk, nid, arg);
881 static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
883 if (EVP_get_digestbynid(nid))
884 return CMS_add_simple_smimecap(sk, nid, arg);
888 int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
890 if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
891 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
892 || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
893 || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
894 || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
895 || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
896 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
897 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
898 || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
899 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))