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/x509.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)
72 CMSerr(CMS_F_CMS_GET0_SIGNED, CMS_R_CONTENT_TYPE_NOT_SIGNED_DATA);
75 return cms->d.signedData;
78 static CMS_SignedData *cms_signed_data_init(CMS_ContentInfo *cms)
80 if (cms->d.other == NULL)
82 cms->d.signedData = M_ASN1_new_of(CMS_SignedData);
83 if (!cms->d.signedData)
85 CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE);
88 cms->d.signedData->version = 1;
89 cms->d.signedData->encapContentInfo->eContentType =
90 OBJ_nid2obj(NID_pkcs7_data);
91 cms->d.signedData->encapContentInfo->partial = 1;
92 ASN1_OBJECT_free(cms->contentType);
93 cms->contentType = OBJ_nid2obj(NID_pkcs7_signed);
94 return cms->d.signedData;
96 return cms_get0_signed(cms);
99 /* Just initialize SignedData e.g. for certs only structure */
101 int CMS_SignedData_init(CMS_ContentInfo *cms)
103 if (cms_signed_data_init(cms))
109 /* Check structures and fixup version numbers (if necessary) */
111 static void cms_sd_set_version(CMS_SignedData *sd)
114 CMS_CertificateChoices *cch;
115 CMS_RevocationInfoChoice *rch;
118 for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++)
120 cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
121 if (cch->type == CMS_CERTCHOICE_OTHER)
126 else if (cch->type == CMS_CERTCHOICE_V2ACERT)
131 else if (cch->type == CMS_CERTCHOICE_V1ACERT)
138 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++)
140 rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i);
141 if (rch->type == CMS_REVCHOICE_OTHER)
148 if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data)
149 && (sd->version < 3))
152 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
154 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
155 if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
171 /* Copy an existing messageDigest value */
173 static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
175 STACK_OF(CMS_SignerInfo) *sinfos;
176 CMS_SignerInfo *sitmp;
178 sinfos = CMS_get0_SignerInfos(cms);
179 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
181 ASN1_OCTET_STRING *messageDigest;
182 sitmp = sk_CMS_SignerInfo_value(sinfos, i);
185 if (CMS_signed_get_attr_count(sitmp) < 0)
187 if (OBJ_cmp(si->digestAlgorithm->algorithm,
188 sitmp->digestAlgorithm->algorithm))
190 messageDigest = CMS_signed_get0_data_by_OBJ(sitmp,
191 OBJ_nid2obj(NID_pkcs9_messageDigest),
192 -3, V_ASN1_OCTET_STRING);
195 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST,
196 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
200 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
207 CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST);
211 int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type)
215 case CMS_SIGNERINFO_ISSUER_SERIAL:
216 if (!cms_set1_ias(&sid->d.issuerAndSerialNumber, cert))
220 case CMS_SIGNERINFO_KEYIDENTIFIER:
221 if (!cms_set1_keyid(&sid->d.subjectKeyIdentifier, cert))
226 CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID);
235 int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
236 ASN1_OCTET_STRING **keyid,
237 X509_NAME **issuer, ASN1_INTEGER **sno)
239 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
242 *issuer = sid->d.issuerAndSerialNumber->issuer;
244 *sno = sid->d.issuerAndSerialNumber->serialNumber;
246 else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
249 *keyid = sid->d.subjectKeyIdentifier;
256 int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert)
258 if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
259 return cms_ias_cert_cmp(sid->d.issuerAndSerialNumber, cert);
260 else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
261 return cms_keyid_cert_cmp(sid->d.subjectKeyIdentifier, cert);
266 static int cms_sd_asn1_ctrl(CMS_SignerInfo *si, int cmd)
268 EVP_PKEY *pkey = si->pkey;
270 if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
272 i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_SIGN, cmd, si);
275 CMSerr(CMS_F_CMS_SD_ASN1_CTRL,
276 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
281 CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_CTRL_FAILURE);
287 CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
288 X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
292 CMS_SignerInfo *si = NULL;
295 if(!X509_check_private_key(signer, pk))
297 CMSerr(CMS_F_CMS_ADD1_SIGNER,
298 CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
301 sd = cms_signed_data_init(cms);
304 si = M_ASN1_new_of(CMS_SignerInfo);
307 X509_check_purpose(signer, -1, -1);
309 CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
310 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
314 EVP_MD_CTX_init(&si->mctx);
317 if (flags & CMS_USE_KEYID)
322 type = CMS_SIGNERINFO_KEYIDENTIFIER;
326 type = CMS_SIGNERINFO_ISSUER_SERIAL;
330 if (!cms_set1_SignerIdentifier(si->sid, signer, type))
336 if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
338 md = EVP_get_digestbynid(def_nid);
341 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
348 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
352 cms_DigestAlgorithm_set(si->digestAlgorithm, md);
354 /* See if digest is present in digestAlgorithms */
355 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
358 alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
359 X509_ALGOR_get0(&aoid, NULL, NULL, alg);
360 if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
364 if (i == sk_X509_ALGOR_num(sd->digestAlgorithms))
366 alg = X509_ALGOR_new();
369 cms_DigestAlgorithm_set(alg, md);
370 if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg))
372 X509_ALGOR_free(alg);
377 if (!(flags & CMS_KEY_PARAM) && !cms_sd_asn1_ctrl(si, 0))
379 if (!(flags & CMS_NOATTR))
381 /* Initialialize signed attributes strutucture so other
382 * attributes such as signing time etc are added later
383 * even if we add none here.
385 if (!si->signedAttrs)
387 si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
388 if (!si->signedAttrs)
392 if (!(flags & CMS_NOSMIMECAP))
394 STACK_OF(X509_ALGOR) *smcap = NULL;
395 i = CMS_add_standard_smimecap(&smcap);
397 i = CMS_add_smimecap(si, smcap);
398 sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
402 if (flags & CMS_REUSE_DIGEST)
404 if (!cms_copy_messageDigest(cms, si))
406 if (!(flags & (CMS_PARTIAL|CMS_KEY_PARAM)) &&
407 !CMS_SignerInfo_sign(si))
412 if (!(flags & CMS_NOCERTS))
414 /* NB ignore -1 return for duplicate cert */
415 if (!CMS_add1_cert(cms, signer))
419 if (flags & CMS_KEY_PARAM)
421 if (flags & CMS_NOATTR)
423 si->pctx = EVP_PKEY_CTX_new(si->pkey, NULL);
426 if (EVP_PKEY_sign_init(si->pctx) <= 0)
428 if (EVP_PKEY_CTX_set_signature_md(si->pctx, md) <= 0)
431 else if (EVP_DigestSignInit(&si->mctx, &si->pctx, md, NULL, pk) <= 0)
435 if (!sd->signerInfos)
436 sd->signerInfos = sk_CMS_SignerInfo_new_null();
437 if (!sd->signerInfos ||
438 !sk_CMS_SignerInfo_push(sd->signerInfos, si))
444 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
447 M_ASN1_free_of(si, CMS_SignerInfo);
452 static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
459 tt = X509_gmtime_adj(NULL, 0);
464 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
465 tt->type, tt, -1) <= 0)
476 CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
482 EVP_PKEY_CTX *CMS_SignerInfo_get0_pkey_ctx(CMS_SignerInfo *si)
487 EVP_MD_CTX *CMS_SignerInfo_get0_md_ctx(CMS_SignerInfo *si)
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_PKEY_CTX *pctx = NULL;
625 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))
635 /* Set SignerInfo algortihm details if we used custom parametsr */
636 if (si->pctx && !cms_sd_asn1_ctrl(si, 0))
639 /* If any signed attributes calculate and add messageDigest attribute */
641 if (CMS_signed_get_attr_count(si) >= 0)
644 cms->d.signedData->encapContentInfo->eContentType;
645 unsigned char md[EVP_MAX_MD_SIZE];
647 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
649 if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
653 /* Copy content type across */
654 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
655 V_ASN1_OBJECT, ctype, -1) <= 0)
657 if (!CMS_SignerInfo_sign(si))
664 unsigned char md[EVP_MAX_MD_SIZE];
667 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
669 siglen = EVP_PKEY_size(si->pkey);
670 sig = OPENSSL_malloc(siglen);
673 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
674 ERR_R_MALLOC_FAILURE);
677 if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0)
679 ASN1_STRING_set0(si->signature, sig, siglen);
685 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
688 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
689 ERR_R_MALLOC_FAILURE);
692 if (!EVP_SignFinal(&mctx, sig, &siglen, si->pkey))
694 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
695 CMS_R_SIGNFINAL_ERROR);
699 ASN1_STRING_set0(si->signature, sig, siglen);
705 EVP_MD_CTX_cleanup(&mctx);
707 EVP_PKEY_CTX_free(pctx);
712 int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
714 STACK_OF(CMS_SignerInfo) *sinfos;
717 sinfos = CMS_get0_SignerInfos(cms);
718 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
720 si = sk_CMS_SignerInfo_value(sinfos, i);
721 if (!cms_SignerInfo_content_sign(cms, si, chain))
724 cms->d.signedData->encapContentInfo->partial = 0;
728 int CMS_SignerInfo_sign(CMS_SignerInfo *si)
730 EVP_MD_CTX *mctx = &si->mctx;
732 unsigned char *abuf = NULL;
735 const EVP_MD *md = NULL;
737 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
742 if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0)
744 if (!cms_add1_signingTime(si, NULL))
752 EVP_MD_CTX_init(mctx);
753 if (EVP_DigestSignInit(mctx, &pctx, md, NULL, si->pkey) <= 0)
757 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
758 EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0)
760 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
764 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
765 ASN1_ITEM_rptr(CMS_Attributes_Sign));
768 if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0)
770 if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0)
773 abuf = OPENSSL_malloc(siglen);
776 if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0)
779 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
780 EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0)
782 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
786 EVP_MD_CTX_cleanup(mctx);
788 ASN1_STRING_set0(si->signature, abuf, siglen);
795 EVP_MD_CTX_cleanup(mctx);
800 int CMS_SignerInfo_verify(CMS_SignerInfo *si)
802 EVP_MD_CTX *mctx = &si->mctx;
803 unsigned char *abuf = NULL;
805 const EVP_MD *md = NULL;
809 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
813 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
816 EVP_MD_CTX_init(mctx);
817 if (EVP_DigestVerifyInit(mctx, &si->pctx, md, NULL, si->pkey) <= 0)
820 if (!cms_sd_asn1_ctrl(si, 1))
823 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
824 ASN1_ITEM_rptr(CMS_Attributes_Verify));
827 r = EVP_DigestVerifyUpdate(mctx, abuf, alen);
834 r = EVP_DigestVerifyFinal(mctx,
835 si->signature->data, si->signature->length);
837 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
839 EVP_MD_CTX_cleanup(mctx);
843 /* Create a chain of digest BIOs from a CMS ContentInfo */
845 BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
850 sd = cms_get0_signed(cms);
853 if (cms->d.signedData->encapContentInfo->partial)
854 cms_sd_set_version(sd);
855 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
857 X509_ALGOR *digestAlgorithm;
859 digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
860 mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
864 BIO_push(chain, mdbio);
875 int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
877 ASN1_OCTET_STRING *os = NULL;
879 EVP_PKEY_CTX *pkctx = NULL;
881 unsigned char mval[EVP_MAX_MD_SIZE];
883 EVP_MD_CTX_init(&mctx);
884 /* If we have any signed attributes look for messageDigest value */
885 if (CMS_signed_get_attr_count(si) >= 0)
887 os = CMS_signed_get0_data_by_OBJ(si,
888 OBJ_nid2obj(NID_pkcs9_messageDigest),
889 -3, V_ASN1_OCTET_STRING);
892 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
893 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
898 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
901 if (EVP_DigestFinal_ex(&mctx, mval, &mlen) <= 0)
903 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
904 CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
908 /* If messageDigest found compare it */
912 if (mlen != (unsigned int)os->length)
914 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
915 CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
919 if (memcmp(mval, os->data, mlen))
921 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
922 CMS_R_VERIFICATION_FAILURE);
930 const EVP_MD *md = EVP_MD_CTX_md(&mctx);
931 pkctx = EVP_PKEY_CTX_new(si->pkey, NULL);
932 if (EVP_PKEY_verify_init(pkctx) <= 0)
934 if (EVP_PKEY_CTX_set_signature_md(pkctx, md) <= 0)
937 if (!cms_sd_asn1_ctrl(si, 1))
939 r = EVP_PKEY_verify(pkctx, si->signature->data,
940 si->signature->length,
944 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
945 CMS_R_VERIFICATION_FAILURE);
952 EVP_PKEY_CTX_free(pkctx);
953 EVP_MD_CTX_cleanup(&mctx);
958 int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
960 unsigned char *smder = NULL;
962 smderlen = i2d_X509_ALGORS(algs, &smder);
965 r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
966 V_ASN1_SEQUENCE, smder, smderlen);
971 int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
972 int algnid, int keysize)
975 ASN1_INTEGER *key = NULL;
978 key = ASN1_INTEGER_new();
979 if (!key || !ASN1_INTEGER_set(key, keysize))
982 alg = X509_ALGOR_new();
986 ASN1_INTEGER_free(key);
990 X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
991 key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
993 *algs = sk_X509_ALGOR_new_null();
994 if (!*algs || !sk_X509_ALGOR_push(*algs, alg))
996 X509_ALGOR_free(alg);
1002 /* Check to see if a cipher exists and if so add S/MIME capabilities */
1004 static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
1006 if (EVP_get_cipherbynid(nid))
1007 return CMS_add_simple_smimecap(sk, nid, arg);
1011 static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
1013 if (EVP_get_digestbynid(nid))
1014 return CMS_add_simple_smimecap(sk, nid, arg);
1018 int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
1020 if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
1021 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
1022 || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
1023 || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
1024 || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
1025 || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
1026 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
1027 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
1028 || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
1029 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))