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 static int cms_sd_asn1_ctrl(CMS_SignerInfo *si, int cmd)
302 EVP_PKEY *pkey = si->pkey;
304 if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
306 i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_SIGN, cmd, si);
309 CMSerr(CMS_F_CMS_SD_ASN1_CTRL,
310 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
315 CMSerr(CMS_F_CMS_SD_ASN1_CTRL, CMS_R_CTRL_FAILURE);
321 CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
322 X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
326 CMS_SignerInfo *si = NULL;
329 if(!X509_check_private_key(signer, pk))
331 CMSerr(CMS_F_CMS_ADD1_SIGNER,
332 CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
335 sd = cms_signed_data_init(cms);
338 si = M_ASN1_new_of(CMS_SignerInfo);
341 X509_check_purpose(signer, -1, -1);
343 CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
344 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
348 EVP_MD_CTX_init(&si->mctx);
351 if (flags & CMS_USE_KEYID)
356 type = CMS_SIGNERINFO_KEYIDENTIFIER;
360 type = CMS_SIGNERINFO_ISSUER_SERIAL;
364 if (!cms_set1_SignerIdentifier(si->sid, signer, type))
370 if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
372 md = EVP_get_digestbynid(def_nid);
375 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
382 CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
386 X509_ALGOR_set_md(si->digestAlgorithm, md);
388 /* See if digest is present in digestAlgorithms */
389 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
392 alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
393 X509_ALGOR_get0(&aoid, NULL, NULL, alg);
394 if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
398 if (i == sk_X509_ALGOR_num(sd->digestAlgorithms))
400 alg = X509_ALGOR_new();
403 X509_ALGOR_set_md(alg, md);
404 if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg))
406 X509_ALGOR_free(alg);
411 if (!(flags & CMS_KEY_PARAM) && !cms_sd_asn1_ctrl(si, 0))
413 if (!(flags & CMS_NOATTR))
415 /* Initialialize signed attributes strutucture so other
416 * attributes such as signing time etc are added later
417 * even if we add none here.
419 if (!si->signedAttrs)
421 si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
422 if (!si->signedAttrs)
426 if (!(flags & CMS_NOSMIMECAP))
428 STACK_OF(X509_ALGOR) *smcap = NULL;
429 i = CMS_add_standard_smimecap(&smcap);
431 i = CMS_add_smimecap(si, smcap);
432 sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
436 if (flags & CMS_REUSE_DIGEST)
438 if (!cms_copy_messageDigest(cms, si))
440 if (!(flags & (CMS_PARTIAL|CMS_KEY_PARAM)) &&
441 !CMS_SignerInfo_sign(si))
446 if (!(flags & CMS_NOCERTS))
448 /* NB ignore -1 return for duplicate cert */
449 if (!CMS_add1_cert(cms, signer))
453 if (flags & CMS_KEY_PARAM)
455 if (flags & CMS_NOATTR)
457 si->pctx = EVP_PKEY_CTX_new(si->pkey, NULL);
460 if (EVP_PKEY_sign_init(si->pctx) <= 0)
462 if (EVP_PKEY_CTX_set_signature_md(si->pctx, md) <= 0)
465 else if (EVP_DigestSignInit(&si->mctx, &si->pctx, md, NULL, pk) <= 0)
469 if (!sd->signerInfos)
470 sd->signerInfos = sk_CMS_SignerInfo_new_null();
471 if (!sd->signerInfos ||
472 !sk_CMS_SignerInfo_push(sd->signerInfos, si))
478 CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
481 M_ASN1_free_of(si, CMS_SignerInfo);
486 static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
493 tt = X509_gmtime_adj(NULL, 0);
498 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
499 tt->type, tt, -1) <= 0)
510 CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
516 EVP_PKEY_CTX *CMS_SignerInfo_get0_pkey_ctx(CMS_SignerInfo *si)
521 EVP_MD_CTX *CMS_SignerInfo_get0_md_ctx(CMS_SignerInfo *si)
526 STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms)
529 sd = cms_get0_signed(cms);
532 return sd->signerInfos;
535 STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms)
537 STACK_OF(X509) *signers = NULL;
538 STACK_OF(CMS_SignerInfo) *sinfos;
541 sinfos = CMS_get0_SignerInfos(cms);
542 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
544 si = sk_CMS_SignerInfo_value(sinfos, i);
549 signers = sk_X509_new_null();
553 if (!sk_X509_push(signers, si->signer))
555 sk_X509_free(signers);
563 void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer)
567 CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
569 EVP_PKEY_free(si->pkey);
570 si->pkey = X509_get_pubkey(signer);
573 X509_free(si->signer);
577 int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si,
578 ASN1_OCTET_STRING **keyid,
579 X509_NAME **issuer, ASN1_INTEGER **sno)
581 return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno);
584 int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert)
586 return cms_SignerIdentifier_cert_cmp(si->sid, cert);
589 int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts,
594 CMS_CertificateChoices *cch;
595 STACK_OF(CMS_CertificateChoices) *certs;
599 sd = cms_get0_signed(cms);
602 certs = sd->certificates;
603 for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
605 si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
609 for (j = 0; j < sk_X509_num(scerts); j++)
611 x = sk_X509_value(scerts, j);
612 if (CMS_SignerInfo_cert_cmp(si, x) == 0)
614 CMS_SignerInfo_set1_signer_cert(si, x);
620 if (si->signer || (flags & CMS_NOINTERN))
623 for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++)
625 cch = sk_CMS_CertificateChoices_value(certs, j);
628 x = cch->d.certificate;
629 if (CMS_SignerInfo_cert_cmp(si, x) == 0)
631 CMS_SignerInfo_set1_signer_cert(si, x);
640 void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk, X509 **signer,
641 X509_ALGOR **pdig, X509_ALGOR **psig)
646 *signer = si->signer;
648 *pdig = si->digestAlgorithm;
650 *psig = si->signatureAlgorithm;
653 static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
654 CMS_SignerInfo *si, BIO *chain)
658 EVP_PKEY_CTX *pctx = NULL;
659 EVP_MD_CTX_init(&mctx);
663 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
667 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
669 /* Set SignerInfo algortihm details if we used custom parametsr */
670 if (si->pctx && !cms_sd_asn1_ctrl(si, 0))
673 /* If any signed attributes calculate and add messageDigest attribute */
675 if (CMS_signed_get_attr_count(si) >= 0)
678 cms->d.signedData->encapContentInfo->eContentType;
679 unsigned char md[EVP_MAX_MD_SIZE];
681 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
683 if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
687 /* Copy content type across */
688 if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
689 V_ASN1_OBJECT, ctype, -1) <= 0)
691 if (!CMS_SignerInfo_sign(si))
698 unsigned char md[EVP_MAX_MD_SIZE];
701 if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
703 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
706 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
707 ERR_R_MALLOC_FAILURE);
710 if (EVP_PKEY_sign(pctx, sig, &siglen, md, mdlen) <= 0)
712 ASN1_STRING_set0(si->signature, sig, siglen);
718 sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
721 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
722 ERR_R_MALLOC_FAILURE);
725 if (!EVP_SignFinal(&mctx, sig, &siglen, si->pkey))
727 CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
728 CMS_R_SIGNFINAL_ERROR);
732 ASN1_STRING_set0(si->signature, sig, siglen);
738 EVP_MD_CTX_cleanup(&mctx);
740 EVP_PKEY_CTX_free(pctx);
745 int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
747 STACK_OF(CMS_SignerInfo) *sinfos;
750 sinfos = CMS_get0_SignerInfos(cms);
751 for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
753 si = sk_CMS_SignerInfo_value(sinfos, i);
754 if (!cms_SignerInfo_content_sign(cms, si, chain))
757 cms->d.signedData->encapContentInfo->partial = 0;
761 int CMS_SignerInfo_sign(CMS_SignerInfo *si)
763 EVP_MD_CTX *mctx = &si->mctx;
765 unsigned char *abuf = NULL;
768 const EVP_MD *md = NULL;
770 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
775 if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0)
777 if (!cms_add1_signingTime(si, NULL))
785 EVP_MD_CTX_init(mctx);
786 if (EVP_DigestSignInit(mctx, &pctx, md, NULL, si->pkey) <= 0)
790 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
791 EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0)
793 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
797 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
798 ASN1_ITEM_rptr(CMS_Attributes_Sign));
801 if (EVP_DigestSignUpdate(mctx, abuf, alen) <= 0)
803 if (EVP_DigestSignFinal(mctx, NULL, &siglen) <= 0)
806 abuf = OPENSSL_malloc(siglen);
809 if (EVP_DigestSignFinal(mctx, abuf, &siglen) <= 0)
812 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
813 EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0)
815 CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
819 EVP_MD_CTX_cleanup(mctx);
821 ASN1_STRING_set0(si->signature, abuf, siglen);
828 EVP_MD_CTX_cleanup(mctx);
833 int CMS_SignerInfo_verify(CMS_SignerInfo *si)
835 EVP_MD_CTX *mctx = &si->mctx;
836 unsigned char *abuf = NULL;
838 const EVP_MD *md = NULL;
842 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
846 md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
849 EVP_MD_CTX_init(mctx);
850 if (EVP_DigestVerifyInit(mctx, &si->pctx, md, NULL, si->pkey) <= 0)
853 if (!cms_sd_asn1_ctrl(si, 1))
856 alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
857 ASN1_ITEM_rptr(CMS_Attributes_Verify));
860 r = EVP_DigestVerifyUpdate(mctx, abuf, alen);
867 r = EVP_DigestVerifyFinal(mctx,
868 si->signature->data, si->signature->length);
870 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
872 EVP_MD_CTX_cleanup(mctx);
876 /* Create a chain of digest BIOs from a CMS ContentInfo */
878 BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
883 sd = cms_get0_signed(cms);
886 if (cms->d.signedData->encapContentInfo->partial)
887 cms_sd_set_version(sd);
888 for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
890 X509_ALGOR *digestAlgorithm;
892 digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
893 mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
897 BIO_push(chain, mdbio);
908 int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
910 ASN1_OCTET_STRING *os = NULL;
912 EVP_PKEY_CTX *pkctx = NULL;
914 unsigned char mval[EVP_MAX_MD_SIZE];
916 EVP_MD_CTX_init(&mctx);
917 /* If we have any signed attributes look for messageDigest value */
918 if (CMS_signed_get_attr_count(si) >= 0)
920 os = CMS_signed_get0_data_by_OBJ(si,
921 OBJ_nid2obj(NID_pkcs9_messageDigest),
922 -3, V_ASN1_OCTET_STRING);
925 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
926 CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
931 if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
934 if (EVP_DigestFinal_ex(&mctx, mval, &mlen) <= 0)
936 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
937 CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
941 /* If messageDigest found compare it */
945 if (mlen != (unsigned int)os->length)
947 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
948 CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
952 if (memcmp(mval, os->data, mlen))
954 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
955 CMS_R_VERIFICATION_FAILURE);
963 const EVP_MD *md = EVP_MD_CTX_md(&mctx);
964 pkctx = EVP_PKEY_CTX_new(si->pkey, NULL);
965 if (EVP_PKEY_verify_init(pkctx) <= 0)
967 if (EVP_PKEY_CTX_set_signature_md(pkctx, md) <= 0)
970 if (!cms_sd_asn1_ctrl(si, 1))
972 r = EVP_PKEY_verify(pkctx, si->signature->data,
973 si->signature->length,
977 CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
978 CMS_R_VERIFICATION_FAILURE);
985 EVP_PKEY_CTX_free(pkctx);
986 EVP_MD_CTX_cleanup(&mctx);
991 int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
993 unsigned char *smder = NULL;
995 smderlen = i2d_X509_ALGORS(algs, &smder);
998 r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
999 V_ASN1_SEQUENCE, smder, smderlen);
1000 OPENSSL_free(smder);
1004 int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
1005 int algnid, int keysize)
1008 ASN1_INTEGER *key = NULL;
1011 key = ASN1_INTEGER_new();
1012 if (!key || !ASN1_INTEGER_set(key, keysize))
1015 alg = X509_ALGOR_new();
1019 ASN1_INTEGER_free(key);
1023 X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
1024 key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
1026 *algs = sk_X509_ALGOR_new_null();
1027 if (!*algs || !sk_X509_ALGOR_push(*algs, alg))
1029 X509_ALGOR_free(alg);
1035 /* Check to see if a cipher exists and if so add S/MIME capabilities */
1037 static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
1039 if (EVP_get_cipherbynid(nid))
1040 return CMS_add_simple_smimecap(sk, nid, arg);
1044 static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
1046 if (EVP_get_digestbynid(nid))
1047 return CMS_add_simple_smimecap(sk, nid, arg);
1051 int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
1053 if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
1054 || !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
1055 || !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
1056 || !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
1057 || !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
1058 || !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
1059 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
1060 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
1061 || !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
1062 || !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))