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))