2 * Copyright 2008-2016 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"
11 #include <openssl/asn1t.h>
12 #include <openssl/pem.h>
13 #include <openssl/x509.h>
14 #include <openssl/x509v3.h>
15 #include <openssl/err.h>
16 #include <openssl/cms.h>
18 #include "internal/asn1_int.h"
19 #include "internal/evp_int.h"
21 /* CMS SignedData Utilities */
23 static CMS_SignedData *cms_get0_signed(CMS_ContentInfo *cms)
25 if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_signed) {
26 CMSerr(CMS_F_CMS_GET0_SIGNED, CMS_R_CONTENT_TYPE_NOT_SIGNED_DATA);
29 return cms->d.signedData;
32 static CMS_SignedData *cms_signed_data_init(CMS_ContentInfo *cms)
34 if (cms->d.other == NULL) {
35 cms->d.signedData = M_ASN1_new_of(CMS_SignedData);
36 if (!cms->d.signedData) {
37 CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE);
40 cms->d.signedData->version = 1;
41 cms->d.signedData->encapContentInfo->eContentType =
42 OBJ_nid2obj(NID_pkcs7_data);
43 cms->d.signedData->encapContentInfo->partial = 1;
44 ASN1_OBJECT_free(cms->contentType);
45 cms->contentType = OBJ_nid2obj(NID_pkcs7_signed);
46 return cms->d.signedData;
48 return cms_get0_signed(cms);
51 /* Just initialise SignedData e.g. for certs only structure */
53 int CMS_SignedData_init(CMS_ContentInfo *cms)
55 if (cms_signed_data_init(cms))
61 /* Check structures and fixup version numbers (if necessary) */
63 static void cms_sd_set_version(CMS_SignedData *sd)
66 CMS_CertificateChoices *cch;
67 CMS_RevocationInfoChoice *rch;
70 for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++) {
71 cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
72 if (cch->type == CMS_CERTCHOICE_OTHER) {
75 } else if (cch->type == CMS_CERTCHOICE_V2ACERT) {
78 } else if (cch->type == CMS_CERTCHOICE_V1ACERT) {
84 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++) {
85 rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i);
86 if (rch->type == CMS_REVCHOICE_OTHER) {
92 if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data)
96 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) {
97 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
98 if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) {
103 } else if (si->version < 1)
113 * RFC 5652 Section 11.1 Content Type
114 * The content-type attribute within signed-data MUST
115 * 1) be present if there are signed attributes
116 * 2) match the content type in the signed-data,
117 * 3) be a signed attribute.
118 * 4) not have more than one copy of the attribute.
120 * Note that since the CMS_SignerInfo_sign() always adds the "signing time"
121 * attribute, the content type attribute MUST be added also.
122 * Assumptions: This assumes that the attribute does not already exist.
124 static int cms_set_si_contentType_attr(CMS_ContentInfo *cms, CMS_SignerInfo *si)
126 ASN1_OBJECT *ctype = cms->d.signedData->encapContentInfo->eContentType;
128 /* Add the contentType attribute */
129 return CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
130 V_ASN1_OBJECT, ctype, -1) > 0;
133 /* Copy an existing messageDigest value */
135 static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
137 STACK_OF(CMS_SignerInfo) *sinfos;
138 CMS_SignerInfo *sitmp;
140 sinfos = CMS_get0_SignerInfos(cms);
141 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
142 ASN1_OCTET_STRING *messageDigest;
143 sitmp = sk_CMS_SignerInfo_value(sinfos, i);
146 if (CMS_signed_get_attr_count(sitmp) < 0)
148 if (OBJ_cmp(si->digestAlgorithm->algorithm,
149 sitmp->digestAlgorithm->algorithm))
151 messageDigest = CMS_signed_get0_data_by_OBJ(sitmp,
153 (NID_pkcs9_messageDigest),
154 -3, V_ASN1_OCTET_STRING);
155 if (!messageDigest) {
156 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST,
157 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
161 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
168 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST);
172 int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type)
175 case CMS_SIGNERINFO_ISSUER_SERIAL:
176 if (!cms_set1_ias(&sid->d.issuerAndSerialNumber, cert))
180 case CMS_SIGNERINFO_KEYIDENTIFIER:
181 if (!cms_set1_keyid(&sid->d.subjectKeyIdentifier, cert))
186 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID);
195 int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
196 ASN1_OCTET_STRING **keyid,
200 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL) {
202 *issuer = sid->d.issuerAndSerialNumber->issuer;
204 *sno = sid->d.issuerAndSerialNumber->serialNumber;
205 } else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER) {
207 *keyid = sid->d.subjectKeyIdentifier;
213 int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert)
215 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
216 return cms_ias_cert_cmp(sid->d.issuerAndSerialNumber, cert);
217 else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
218 return cms_keyid_cert_cmp(sid->d.subjectKeyIdentifier, cert);
223 static int cms_sd_asn1_ctrl(CMS_SignerInfo *si, int cmd)
225 EVP_PKEY *pkey = si->pkey;
227 if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
229 i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_SIGN, cmd, si);
231 CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
235 CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_CTRL_FAILURE);
241 CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
242 X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
246 CMS_SignerInfo *si = NULL;
249 if (!X509_check_private_key(signer, pk)) {
250 CMSerr(CMS_F_CMS_ADD1_SIGNER,
251 CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
254 sd = cms_signed_data_init(cms);
257 si = M_ASN1_new_of(CMS_SignerInfo);
260 /* Call for side-effect of computing hash and caching extensions */
261 X509_check_purpose(signer, -1, -1);
268 si->mctx = EVP_MD_CTX_new();
271 if (si->mctx == NULL) {
272 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
276 if (flags & CMS_USE_KEYID) {
280 type = CMS_SIGNERINFO_KEYIDENTIFIER;
282 type = CMS_SIGNERINFO_ISSUER_SERIAL;
286 if (!cms_set1_SignerIdentifier(si->sid, signer, type))
291 if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
293 md = EVP_get_digestbynid(def_nid);
295 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
301 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
305 X509_ALGOR_set_md(si->digestAlgorithm, md);
307 /* See if digest is present in digestAlgorithms */
308 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) {
309 const ASN1_OBJECT *aoid;
310 alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
311 X509_ALGOR_get0(&aoid, NULL, NULL, alg);
312 if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
316 if (i == sk_X509_ALGOR_num(sd->digestAlgorithms)) {
317 alg = X509_ALGOR_new();
320 X509_ALGOR_set_md(alg, md);
321 if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg)) {
322 X509_ALGOR_free(alg);
327 if (!(flags & CMS_KEY_PARAM) && !cms_sd_asn1_ctrl(si, 0))
329 if (!(flags & CMS_NOATTR)) {
331 * Initialize signed attributes structure so other attributes
332 * such as signing time etc are added later even if we add none here.
334 if (!si->signedAttrs) {
335 si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
336 if (!si->signedAttrs)
340 if (!(flags & CMS_NOSMIMECAP)) {
341 STACK_OF(X509_ALGOR) *smcap = NULL;
342 i = CMS_add_standard_smimecap(&smcap);
344 i = CMS_add_smimecap(si, smcap);
345 sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
349 if (flags & CMS_REUSE_DIGEST) {
350 if (!cms_copy_messageDigest(cms, si))
352 if (!cms_set_si_contentType_attr(cms, si))
354 if (!(flags & (CMS_PARTIAL | CMS_KEY_PARAM)) &&
355 !CMS_SignerInfo_sign(si))
360 if (!(flags & CMS_NOCERTS)) {
361 /* NB ignore -1 return for duplicate cert */
362 if (!CMS_add1_cert(cms, signer))
366 if (flags & CMS_KEY_PARAM) {
367 if (flags & CMS_NOATTR) {
368 si->pctx = EVP_PKEY_CTX_new(si->pkey, NULL);
369 if (si->pctx == NULL)
371 if (EVP_PKEY_sign_init(si->pctx) <= 0)
373 if (EVP_PKEY_CTX_set_signature_md(si->pctx, md) <= 0)
375 } else if (EVP_DigestSignInit(si->mctx, &si->pctx, md, NULL, pk) <=
380 if (!sd->signerInfos)
381 sd->signerInfos = sk_CMS_SignerInfo_new_null();
382 if (!sd->signerInfos || !sk_CMS_SignerInfo_push(sd->signerInfos, si))
388 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
390 M_ASN1_free_of(si, CMS_SignerInfo);
395 static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
402 tt = X509_gmtime_adj(NULL, 0);
407 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
408 tt->type, tt, -1) <= 0)
419 CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
425 EVP_PKEY_CTX *CMS_SignerInfo_get0_pkey_ctx(CMS_SignerInfo *si)
430 EVP_MD_CTX *CMS_SignerInfo_get0_md_ctx(CMS_SignerInfo *si)
435 STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms)
438 sd = cms_get0_signed(cms);
441 return sd->signerInfos;
444 STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms)
446 STACK_OF(X509) *signers = NULL;
447 STACK_OF(CMS_SignerInfo) *sinfos;
450 sinfos = CMS_get0_SignerInfos(cms);
451 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
452 si = sk_CMS_SignerInfo_value(sinfos, i);
455 signers = sk_X509_new_null();
459 if (!sk_X509_push(signers, si->signer)) {
460 sk_X509_free(signers);
468 void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer)
472 EVP_PKEY_free(si->pkey);
473 si->pkey = X509_get_pubkey(signer);
475 X509_free(si->signer);
479 int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si,
480 ASN1_OCTET_STRING **keyid,
481 X509_NAME **issuer, ASN1_INTEGER **sno)
483 return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno);
486 int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert)
488 return cms_SignerIdentifier_cert_cmp(si->sid, cert);
491 int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts,
496 CMS_CertificateChoices *cch;
497 STACK_OF(CMS_CertificateChoices) *certs;
501 sd = cms_get0_signed(cms);
504 certs = sd->certificates;
505 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++) {
506 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
510 for (j = 0; j < sk_X509_num(scerts); j++) {
511 x = sk_X509_value(scerts, j);
512 if (CMS_SignerInfo_cert_cmp(si, x) == 0) {
513 CMS_SignerInfo_set1_signer_cert(si, x);
519 if (si->signer || (flags & CMS_NOINTERN))
522 for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++) {
523 cch = sk_CMS_CertificateChoices_value(certs, j);
526 x = cch->d.certificate;
527 if (CMS_SignerInfo_cert_cmp(si, x) == 0) {
528 CMS_SignerInfo_set1_signer_cert(si, x);
537 void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk,
538 X509 **signer, X509_ALGOR **pdig,
544 *signer = si->signer;
546 *pdig = si->digestAlgorithm;
548 *psig = si->signatureAlgorithm;
551 ASN1_OCTET_STRING *CMS_SignerInfo_get0_signature(CMS_SignerInfo *si)
553 return si->signature;
556 static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
557 CMS_SignerInfo *si, BIO *chain)
559 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
561 EVP_PKEY_CTX *pctx = NULL;
564 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
569 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
573 if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm))
575 /* Set SignerInfo algorithm details if we used custom parameter */
576 if (si->pctx && !cms_sd_asn1_ctrl(si, 0))
580 * If any signed attributes calculate and add messageDigest attribute
583 if (CMS_signed_get_attr_count(si) >= 0) {
584 unsigned char md[EVP_MAX_MD_SIZE];
586 if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
588 if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
589 V_ASN1_OCTET_STRING, md, mdlen))
591 /* Copy content type across */
592 if (!cms_set_si_contentType_attr(cms, si))
595 if (!CMS_SignerInfo_sign(si))
597 } else if (si->pctx) {
600 unsigned char md[EVP_MAX_MD_SIZE];
603 if (!EVP_DigestFinal_ex(mctx, md, &mdlen))
605 siglen = EVP_PKEY_size(si->pkey);
606 sig = OPENSSL_malloc(siglen);
608 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
611 if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0) {
615 ASN1_STRING_set0(si->signature, sig, siglen);
619 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
621 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, ERR_R_MALLOC_FAILURE);
624 if (!EVP_SignFinal(mctx, sig, &siglen, si->pkey)) {
625 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_SIGNFINAL_ERROR);
629 ASN1_STRING_set0(si->signature, sig, siglen);
635 EVP_MD_CTX_free(mctx);
636 EVP_PKEY_CTX_free(pctx);
641 int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
643 STACK_OF(CMS_SignerInfo) *sinfos;
646 sinfos = CMS_get0_SignerInfos(cms);
647 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++) {
648 si = sk_CMS_SignerInfo_value(sinfos, i);
649 if (!cms_SignerInfo_content_sign(cms, si, chain))
652 cms->d.signedData->encapContentInfo->partial = 0;
656 int CMS_SignerInfo_sign(CMS_SignerInfo *si)
658 EVP_MD_CTX *mctx = si->mctx;
659 EVP_PKEY_CTX *pctx = NULL;
660 unsigned char *abuf = NULL;
663 const EVP_MD *md = NULL;
665 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
669 if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0) {
670 if (!cms_add1_signingTime(si, NULL))
674 if (!CMS_si_check_attributes(si))
680 EVP_MD_CTX_reset(mctx);
681 if (EVP_DigestSignInit(mctx, &pctx, md, NULL, si->pkey) <= 0)
686 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
687 EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0) {
688 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
692 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf,
693 ASN1_ITEM_rptr(CMS_Attributes_Sign));
696 if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0)
698 if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0)
701 abuf = OPENSSL_malloc(siglen);
704 if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0)
707 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
708 EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0) {
709 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
713 EVP_MD_CTX_reset(mctx);
715 ASN1_STRING_set0(si->signature, abuf, siglen);
721 EVP_MD_CTX_reset(mctx);
725 int CMS_SignerInfo_verify(CMS_SignerInfo *si)
727 EVP_MD_CTX *mctx = NULL;
728 unsigned char *abuf = NULL;
730 const EVP_MD *md = NULL;
733 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
737 if (!CMS_si_check_attributes(si))
740 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
743 if (si->mctx == NULL && (si->mctx = EVP_MD_CTX_new()) == NULL) {
744 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, ERR_R_MALLOC_FAILURE);
748 if (EVP_DigestVerifyInit(mctx, &si->pctx, md, NULL, si->pkey) <= 0)
751 if (!cms_sd_asn1_ctrl(si, 1))
754 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs, &abuf,
755 ASN1_ITEM_rptr(CMS_Attributes_Verify));
758 r = EVP_DigestVerifyUpdate(mctx, abuf, alen);
764 r = EVP_DigestVerifyFinal(mctx,
765 si->signature->data, si->signature->length);
767 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
769 EVP_MD_CTX_reset(mctx);
773 /* Create a chain of digest BIOs from a CMS ContentInfo */
775 BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
780 sd = cms_get0_signed(cms);
783 if (cms->d.signedData->encapContentInfo->partial)
784 cms_sd_set_version(sd);
785 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++) {
786 X509_ALGOR *digestAlgorithm;
788 digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
789 mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
793 BIO_push(chain, mdbio);
803 int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
805 ASN1_OCTET_STRING *os = NULL;
806 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
807 EVP_PKEY_CTX *pkctx = NULL;
809 unsigned char mval[EVP_MAX_MD_SIZE];
813 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT, ERR_R_MALLOC_FAILURE);
816 /* If we have any signed attributes look for messageDigest value */
817 if (CMS_signed_get_attr_count(si) >= 0) {
818 os = CMS_signed_get0_data_by_OBJ(si,
819 OBJ_nid2obj(NID_pkcs9_messageDigest),
820 -3, V_ASN1_OCTET_STRING);
822 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
823 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
828 if (!cms_DigestAlgorithm_find_ctx(mctx, chain, si->digestAlgorithm))
831 if (EVP_DigestFinal_ex(mctx, mval, &mlen) <= 0) {
832 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
833 CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
837 /* If messageDigest found compare it */
840 if (mlen != (unsigned int)os->length) {
841 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
842 CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
846 if (memcmp(mval, os->data, mlen)) {
847 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
848 CMS_R_VERIFICATION_FAILURE);
853 const EVP_MD *md = EVP_MD_CTX_md(mctx);
854 pkctx = EVP_PKEY_CTX_new(si->pkey, NULL);
857 if (EVP_PKEY_verify_init(pkctx) <= 0)
859 if (EVP_PKEY_CTX_set_signature_md(pkctx, md) <= 0)
862 if (!cms_sd_asn1_ctrl(si, 1))
864 r = EVP_PKEY_verify(pkctx, si->signature->data,
865 si->signature->length, mval, mlen);
867 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
868 CMS_R_VERIFICATION_FAILURE);
874 EVP_PKEY_CTX_free(pkctx);
875 EVP_MD_CTX_free(mctx);
880 int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
882 unsigned char *smder = NULL;
884 smderlen = i2d_X509_ALGORS(algs, &smder);
887 r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
888 V_ASN1_SEQUENCE, smder, smderlen);
893 int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
894 int algnid, int keysize)
897 ASN1_INTEGER *key = NULL;
899 key = ASN1_INTEGER_new();
900 if (key == NULL || !ASN1_INTEGER_set(key, keysize))
903 alg = X509_ALGOR_new();
905 ASN1_INTEGER_free(key);
909 X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
910 key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
912 *algs = sk_X509_ALGOR_new_null();
913 if (*algs == NULL || !sk_X509_ALGOR_push(*algs, alg)) {
914 X509_ALGOR_free(alg);
920 /* Check to see if a cipher exists and if so add S/MIME capabilities */
922 static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
924 if (EVP_get_cipherbynid(nid))
925 return CMS_add_simple_smimecap(sk, nid, arg);
929 static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
931 if (EVP_get_digestbynid(nid))
932 return CMS_add_simple_smimecap(sk, nid, arg);
936 int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
938 if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
939 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_2012_256, -1)
940 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_2012_512, -1)
941 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
942 || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
943 || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
944 || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
945 || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
946 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
947 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
948 || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
949 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))