1 /* crypto/cms/cms_sd.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
55 #include <openssl/asn1t.h>
56 #include <openssl/pem.h>
57 #include <openssl/x509v3.h>
58 #include <openssl/err.h>
59 #include <openssl/cms.h>
61 #include "asn1_locl.h"
63 /* CMS SignedData Utilities */
65 DECLARE_ASN1_ITEM(CMS_SignedData)
67 static CMS_SignedData *cms_get0_signed(CMS_ContentInfo *cms)
69 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)
81 cms->d.signedData = M_ASN1_new_of(CMS_SignedData);
82 if (!cms->d.signedData)
84 CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE);
87 cms->d.signedData->version = 1;
88 cms->d.signedData->encapContentInfo->eContentType =
89 OBJ_nid2obj(NID_pkcs7_data);
90 cms->d.signedData->encapContentInfo->partial = 1;
91 ASN1_OBJECT_free(cms->contentType);
92 cms->contentType = OBJ_nid2obj(NID_pkcs7_signed);
93 return cms->d.signedData;
95 return cms_get0_signed(cms);
98 /* Just initialize SignedData e.g. for certs only structure */
100 int CMS_SignedData_init(CMS_ContentInfo *cms)
102 if (cms_signed_data_init(cms))
108 /* Check structures and fixup version numbers (if necessary) */
110 static void cms_sd_set_version(CMS_SignedData *sd)
113 CMS_CertificateChoices *cch;
114 CMS_RevocationInfoChoice *rch;
117 for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++)
119 cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
120 if (cch->type == CMS_CERTCHOICE_OTHER)
125 else if (cch->type == CMS_CERTCHOICE_V2ACERT)
130 else if (cch->type == CMS_CERTCHOICE_V1ACERT)
137 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++)
139 rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i);
140 if (rch->type == CMS_REVCHOICE_OTHER)
147 if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data)
148 && (sd->version < 3))
151 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
153 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
154 if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
170 /* Copy an existing messageDigest value */
172 static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
174 STACK_OF(CMS_SignerInfo) *sinfos;
175 CMS_SignerInfo *sitmp;
177 sinfos = CMS_get0_SignerInfos(cms);
178 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
180 ASN1_OCTET_STRING *messageDigest;
181 sitmp = sk_CMS_SignerInfo_value(sinfos, i);
184 if (CMS_signed_get_attr_count(sitmp) < 0)
186 if (OBJ_cmp(si->digestAlgorithm->algorithm,
187 sitmp->digestAlgorithm->algorithm))
189 messageDigest = CMS_signed_get0_data_by_OBJ(sitmp,
190 OBJ_nid2obj(NID_pkcs9_messageDigest),
191 -3, V_ASN1_OCTET_STRING);
194 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST,
195 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
199 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
206 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST);
210 int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type)
214 case CMS_SIGNERINFO_ISSUER_SERIAL:
215 sid->d.issuerAndSerialNumber =
216 M_ASN1_new_of(CMS_IssuerAndSerialNumber);
217 if (!sid->d.issuerAndSerialNumber)
219 if (!X509_NAME_set(&sid->d.issuerAndSerialNumber->issuer,
220 X509_get_issuer_name(cert)))
222 if (!ASN1_STRING_copy(
223 sid->d.issuerAndSerialNumber->serialNumber,
224 X509_get_serialNumber(cert)))
228 case CMS_SIGNERINFO_KEYIDENTIFIER:
231 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER,
232 CMS_R_CERTIFICATE_HAS_NO_KEYID);
235 sid->d.subjectKeyIdentifier = ASN1_STRING_dup(cert->skid);
236 if (!sid->d.subjectKeyIdentifier)
241 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID);
250 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, ERR_R_MALLOC_FAILURE);
255 int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
256 ASN1_OCTET_STRING **keyid,
257 X509_NAME **issuer, ASN1_INTEGER **sno)
259 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
262 *issuer = sid->d.issuerAndSerialNumber->issuer;
264 *sno = sid->d.issuerAndSerialNumber->serialNumber;
266 else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
269 *keyid = sid->d.subjectKeyIdentifier;
276 int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert)
279 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
281 ret = X509_NAME_cmp(sid->d.issuerAndSerialNumber->issuer,
282 X509_get_issuer_name(cert));
285 return ASN1_INTEGER_cmp(sid->d.issuerAndSerialNumber->serialNumber,
286 X509_get_serialNumber(cert));
288 else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
290 X509_check_purpose(cert, -1, -1);
293 return ASN1_OCTET_STRING_cmp(sid->d.subjectKeyIdentifier,
300 CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
301 X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
305 CMS_SignerInfo *si = NULL;
308 if(!X509_check_private_key(signer, pk))
310 CMSerr(CMS_F_CMS_ADD1_SIGNER,
311 CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
314 sd = cms_signed_data_init(cms);
317 si = M_ASN1_new_of(CMS_SignerInfo);
320 X509_check_purpose(signer, -1, -1);
322 CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
323 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
328 if (flags & CMS_USE_KEYID)
333 type = CMS_SIGNERINFO_KEYIDENTIFIER;
337 type = CMS_SIGNERINFO_ISSUER_SERIAL;
341 if (!cms_set1_SignerIdentifier(si->sid, signer, type))
347 if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
349 md = EVP_get_digestbynid(def_nid);
352 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
359 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
363 cms_DigestAlgorithm_set(si->digestAlgorithm, md);
365 /* See if digest is present in digestAlgorithms */
366 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
369 alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
370 X509_ALGOR_get0(&aoid, NULL, NULL, alg);
371 if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
375 if (i == sk_X509_ALGOR_num(sd->digestAlgorithms))
377 alg = X509_ALGOR_new();
380 cms_DigestAlgorithm_set(alg, md);
381 if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg))
383 X509_ALGOR_free(alg);
388 if (pk->ameth && pk->ameth->pkey_ctrl)
390 i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_SIGN,
394 CMSerr(CMS_F_CMS_ADD1_SIGNER,
395 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
400 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_CTRL_FAILURE);
405 if (!(flags & CMS_NOATTR))
407 /* Initialialize signed attributes strutucture so other
408 * attributes such as signing time etc are added later
409 * even if we add none here.
411 if (!si->signedAttrs)
413 si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
414 if (!si->signedAttrs)
418 if (!(flags & CMS_NOSMIMECAP))
420 STACK_OF(X509_ALGOR) *smcap = NULL;
421 i = CMS_add_standard_smimecap(&smcap);
423 i = CMS_add_smimecap(si, smcap);
424 sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
428 if (flags & CMS_REUSE_DIGEST)
430 if (!cms_copy_messageDigest(cms, si))
432 if (!(flags & CMS_PARTIAL) &&
433 !CMS_SignerInfo_sign(si))
438 if (!(flags & CMS_NOCERTS))
440 /* NB ignore -1 return for duplicate cert */
441 if (!CMS_add1_cert(cms, signer))
445 if (!sd->signerInfos)
446 sd->signerInfos = sk_CMS_SignerInfo_new_null();
447 if (!sd->signerInfos ||
448 !sk_CMS_SignerInfo_push(sd->signerInfos, si))
454 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
457 M_ASN1_free_of(si, CMS_SignerInfo);
462 static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
469 tt = X509_gmtime_adj(NULL, 0);
474 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
475 tt->type, tt, -1) <= 0)
486 CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
492 STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms)
495 sd = cms_get0_signed(cms);
498 return sd->signerInfos;
501 STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms)
503 STACK_OF(X509) *signers = NULL;
504 STACK_OF(CMS_SignerInfo) *sinfos;
507 sinfos = CMS_get0_SignerInfos(cms);
508 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
510 si = sk_CMS_SignerInfo_value(sinfos, i);
515 signers = sk_X509_new_null();
519 if (!sk_X509_push(signers, si->signer))
521 sk_X509_free(signers);
529 void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer)
533 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
535 EVP_PKEY_free(si->pkey);
536 si->pkey = X509_get_pubkey(signer);
539 X509_free(si->signer);
543 int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si,
544 ASN1_OCTET_STRING **keyid,
545 X509_NAME **issuer, ASN1_INTEGER **sno)
547 return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno);
550 int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert)
552 return cms_SignerIdentifier_cert_cmp(si->sid, cert);
555 int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts,
560 CMS_CertificateChoices *cch;
561 STACK_OF(CMS_CertificateChoices) *certs;
565 sd = cms_get0_signed(cms);
568 certs = sd->certificates;
569 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
571 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
575 for (j = 0; j < sk_X509_num(scerts); j++)
577 x = sk_X509_value(scerts, j);
578 if (CMS_SignerInfo_cert_cmp(si, x) == 0)
580 CMS_SignerInfo_set1_signer_cert(si, x);
586 if (si->signer || (flags & CMS_NOINTERN))
589 for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++)
591 cch = sk_CMS_CertificateChoices_value(certs, j);
594 x = cch->d.certificate;
595 if (CMS_SignerInfo_cert_cmp(si, x) == 0)
597 CMS_SignerInfo_set1_signer_cert(si, x);
606 void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk, X509 **signer,
607 X509_ALGOR **pdig, X509_ALGOR **psig)
612 *signer = si->signer;
614 *pdig = si->digestAlgorithm;
616 *psig = si->signatureAlgorithm;
619 static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
620 CMS_SignerInfo *si, BIO *chain)
624 EVP_MD_CTX_init(&mctx);
629 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
633 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
636 /* If any signed attributes calculate and add messageDigest attribute */
638 if (CMS_signed_get_attr_count(si) >= 0)
641 cms->d.signedData->encapContentInfo->eContentType;
642 unsigned char md[EVP_MAX_MD_SIZE];
644 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
646 if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
650 /* Copy content type across */
651 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
652 V_ASN1_OBJECT, ctype, -1) <= 0)
654 if (!CMS_SignerInfo_sign(si))
661 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
664 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
665 ERR_R_MALLOC_FAILURE);
668 if (!EVP_SignFinal(&mctx, sig, &siglen, si->pkey))
670 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
671 CMS_R_SIGNFINAL_ERROR);
675 ASN1_STRING_set0(si->signature, sig, siglen);
681 EVP_MD_CTX_cleanup(&mctx);
686 int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
688 STACK_OF(CMS_SignerInfo) *sinfos;
691 sinfos = CMS_get0_SignerInfos(cms);
692 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
694 si = sk_CMS_SignerInfo_value(sinfos, i);
695 if (!cms_SignerInfo_content_sign(cms, si, chain))
698 cms->d.signedData->encapContentInfo->partial = 0;
702 int CMS_SignerInfo_sign(CMS_SignerInfo *si)
706 unsigned char *abuf = NULL;
709 const EVP_MD *md = NULL;
711 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
715 EVP_MD_CTX_init(&mctx);
717 if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0)
719 if (!cms_add1_signingTime(si, NULL))
723 if (EVP_DigestSignInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
726 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
727 EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0)
729 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
733 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
734 ASN1_ITEM_rptr(CMS_Attributes_Sign));
737 if (EVP_DigestSignUpdate(&mctx, abuf, alen) <= 0)
739 if (EVP_DigestSignFinal(&mctx, NULL, &siglen) <= 0)
742 abuf = OPENSSL_malloc(siglen);
745 if (EVP_DigestSignFinal(&mctx, abuf, &siglen) <= 0)
748 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
749 EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0)
751 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
755 EVP_MD_CTX_cleanup(&mctx);
757 ASN1_STRING_set0(si->signature, abuf, siglen);
764 EVP_MD_CTX_cleanup(&mctx);
769 int CMS_SignerInfo_verify(CMS_SignerInfo *si)
773 unsigned char *abuf = NULL;
775 const EVP_MD *md = NULL;
779 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
783 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
786 EVP_MD_CTX_init(&mctx);
787 if (EVP_DigestVerifyInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
790 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
791 ASN1_ITEM_rptr(CMS_Attributes_Verify));
794 r = EVP_DigestVerifyUpdate(&mctx, abuf, alen);
801 r = EVP_DigestVerifyFinal(&mctx,
802 si->signature->data, si->signature->length);
804 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
806 EVP_MD_CTX_cleanup(&mctx);
810 /* Create a chain of digest BIOs from a CMS ContentInfo */
812 BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
817 sd = cms_get0_signed(cms);
820 if (cms->d.signedData->encapContentInfo->partial)
821 cms_sd_set_version(sd);
822 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
824 X509_ALGOR *digestAlgorithm;
826 digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
827 mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
831 BIO_push(chain, mdbio);
842 int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
844 ASN1_OCTET_STRING *os = NULL;
847 EVP_MD_CTX_init(&mctx);
848 /* If we have any signed attributes look for messageDigest value */
849 if (CMS_signed_get_attr_count(si) >= 0)
851 os = CMS_signed_get0_data_by_OBJ(si,
852 OBJ_nid2obj(NID_pkcs9_messageDigest),
853 -3, V_ASN1_OCTET_STRING);
856 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
857 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
862 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
865 /* If messageDigest found compare it */
869 unsigned char mval[EVP_MAX_MD_SIZE];
871 if (EVP_DigestFinal_ex(&mctx, mval, &mlen) <= 0)
873 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
874 CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
877 if (mlen != (unsigned int)os->length)
879 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
880 CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
884 if (memcmp(mval, os->data, mlen))
886 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
887 CMS_R_VERIFICATION_FAILURE);
895 r = EVP_VerifyFinal(&mctx, si->signature->data,
896 si->signature->length, si->pkey);
899 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
900 CMS_R_VERIFICATION_FAILURE);
906 EVP_MD_CTX_cleanup(&mctx);
911 int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
913 unsigned char *smder = NULL;
915 smderlen = i2d_X509_ALGORS(algs, &smder);
918 r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
919 V_ASN1_SEQUENCE, smder, smderlen);
924 int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
925 int algnid, int keysize)
928 ASN1_INTEGER *key = NULL;
931 key = ASN1_INTEGER_new();
932 if (!key || !ASN1_INTEGER_set(key, keysize))
935 alg = X509_ALGOR_new();
939 ASN1_INTEGER_free(key);
943 X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
944 key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
946 *algs = sk_X509_ALGOR_new_null();
947 if (!*algs || !sk_X509_ALGOR_push(*algs, alg))
949 X509_ALGOR_free(alg);
955 /* Check to see if a cipher exists and if so add S/MIME capabilities */
957 static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
959 if (EVP_get_cipherbynid(nid))
960 return CMS_add_simple_smimecap(sk, nid, arg);
964 static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
966 if (EVP_get_digestbynid(nid))
967 return CMS_add_simple_smimecap(sk, nid, arg);
971 int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
973 if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
974 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
975 || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
976 || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
977 || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
978 || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
979 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
980 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
981 || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
982 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))