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 * ====================================================================
54 #include <openssl/asn1t.h>
55 #include <openssl/x509v3.h>
56 #include <openssl/err.h>
57 #include <openssl/pem.h>
58 #include <openssl/bio.h>
59 #include <openssl/asn1.h>
60 #include <openssl/cms.h>
63 IMPLEMENT_ASN1_FUNCTIONS(CMS_ContentInfo)
64 IMPLEMENT_ASN1_PRINT_FUNCTION(CMS_ContentInfo)
66 const ASN1_OBJECT *CMS_get0_type(CMS_ContentInfo *cms)
68 return cms->contentType;
71 CMS_ContentInfo *cms_Data_create(void)
74 cms = CMS_ContentInfo_new();
76 cms->contentType = OBJ_nid2obj(NID_pkcs7_data);
78 CMS_set_detached(cms, 0);
83 BIO *cms_content_bio(CMS_ContentInfo *cms)
85 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
88 /* If content detached data goes nowhere: create NULL BIO */
90 return BIO_new(BIO_s_null());
92 * If content not detached and created return memory BIO
94 if (!*pos || ((*pos)->flags == ASN1_STRING_FLAG_CONT))
95 return BIO_new(BIO_s_mem());
96 /* Else content was read in: return read only BIO for it */
97 return BIO_new_mem_buf((*pos)->data, (*pos)->length);
100 BIO *CMS_dataInit(CMS_ContentInfo *cms, BIO *icont)
106 cont = cms_content_bio(cms);
108 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_NO_CONTENT);
111 switch (OBJ_obj2nid(cms->contentType)) {
116 case NID_pkcs7_signed:
117 cmsbio = cms_SignedData_init_bio(cms);
120 case NID_pkcs7_digest:
121 cmsbio = cms_DigestedData_init_bio(cms);
124 case NID_id_smime_ct_compressedData:
125 cmsbio = cms_CompressedData_init_bio(cms);
129 case NID_pkcs7_encrypted:
130 cmsbio = cms_EncryptedData_init_bio(cms);
133 case NID_pkcs7_enveloped:
134 cmsbio = cms_EnvelopedData_init_bio(cms);
138 CMSerr(CMS_F_CMS_DATAINIT, CMS_R_UNSUPPORTED_TYPE);
143 return BIO_push(cmsbio, cont);
151 int CMS_dataFinal(CMS_ContentInfo *cms, BIO *cmsbio)
153 ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
156 /* If embedded content find memory BIO and set content */
157 if (*pos && ((*pos)->flags & ASN1_STRING_FLAG_CONT)) {
161 mbio = BIO_find_type(cmsbio, BIO_TYPE_MEM);
163 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_CONTENT_NOT_FOUND);
166 contlen = BIO_get_mem_data(mbio, &cont);
167 /* Set bio as read only so its content can't be clobbered */
168 BIO_set_flags(mbio, BIO_FLAGS_MEM_RDONLY);
169 BIO_set_mem_eof_return(mbio, 0);
170 ASN1_STRING_set0(*pos, cont, contlen);
171 (*pos)->flags &= ~ASN1_STRING_FLAG_CONT;
174 switch (OBJ_obj2nid(cms->contentType)) {
177 case NID_pkcs7_enveloped:
178 case NID_pkcs7_encrypted:
179 case NID_id_smime_ct_compressedData:
183 case NID_pkcs7_signed:
184 return cms_SignedData_final(cms, cmsbio);
186 case NID_pkcs7_digest:
187 return cms_DigestedData_do_final(cms, cmsbio, 0);
190 CMSerr(CMS_F_CMS_DATAFINAL, CMS_R_UNSUPPORTED_TYPE);
196 * Return an OCTET STRING pointer to content. This allows it to be accessed
200 ASN1_OCTET_STRING **CMS_get0_content(CMS_ContentInfo *cms)
202 switch (OBJ_obj2nid(cms->contentType)) {
207 case NID_pkcs7_signed:
208 return &cms->d.signedData->encapContentInfo->eContent;
210 case NID_pkcs7_enveloped:
211 return &cms->d.envelopedData->encryptedContentInfo->encryptedContent;
213 case NID_pkcs7_digest:
214 return &cms->d.digestedData->encapContentInfo->eContent;
216 case NID_pkcs7_encrypted:
217 return &cms->d.encryptedData->encryptedContentInfo->encryptedContent;
219 case NID_id_smime_ct_authData:
220 return &cms->d.authenticatedData->encapContentInfo->eContent;
222 case NID_id_smime_ct_compressedData:
223 return &cms->d.compressedData->encapContentInfo->eContent;
226 if (cms->d.other->type == V_ASN1_OCTET_STRING)
227 return &cms->d.other->value.octet_string;
228 CMSerr(CMS_F_CMS_GET0_CONTENT, CMS_R_UNSUPPORTED_CONTENT_TYPE);
235 * Return an ASN1_OBJECT pointer to content type. This allows it to be
236 * accessed or set later.
239 static ASN1_OBJECT **cms_get0_econtent_type(CMS_ContentInfo *cms)
241 switch (OBJ_obj2nid(cms->contentType)) {
243 case NID_pkcs7_signed:
244 return &cms->d.signedData->encapContentInfo->eContentType;
246 case NID_pkcs7_enveloped:
247 return &cms->d.envelopedData->encryptedContentInfo->contentType;
249 case NID_pkcs7_digest:
250 return &cms->d.digestedData->encapContentInfo->eContentType;
252 case NID_pkcs7_encrypted:
253 return &cms->d.encryptedData->encryptedContentInfo->contentType;
255 case NID_id_smime_ct_authData:
256 return &cms->d.authenticatedData->encapContentInfo->eContentType;
258 case NID_id_smime_ct_compressedData:
259 return &cms->d.compressedData->encapContentInfo->eContentType;
262 CMSerr(CMS_F_CMS_GET0_ECONTENT_TYPE, CMS_R_UNSUPPORTED_CONTENT_TYPE);
268 const ASN1_OBJECT *CMS_get0_eContentType(CMS_ContentInfo *cms)
270 ASN1_OBJECT **petype;
271 petype = cms_get0_econtent_type(cms);
277 int CMS_set1_eContentType(CMS_ContentInfo *cms, const ASN1_OBJECT *oid)
279 ASN1_OBJECT **petype, *etype;
280 petype = cms_get0_econtent_type(cms);
285 etype = OBJ_dup(oid);
288 ASN1_OBJECT_free(*petype);
293 int CMS_is_detached(CMS_ContentInfo *cms)
295 ASN1_OCTET_STRING **pos;
296 pos = CMS_get0_content(cms);
304 int CMS_set_detached(CMS_ContentInfo *cms, int detached)
306 ASN1_OCTET_STRING **pos;
307 pos = CMS_get0_content(cms);
311 ASN1_OCTET_STRING_free(*pos);
316 *pos = ASN1_OCTET_STRING_new();
319 * NB: special flag to show content is created and not read in.
321 (*pos)->flags |= ASN1_STRING_FLAG_CONT;
324 CMSerr(CMS_F_CMS_SET_DETACHED, ERR_R_MALLOC_FAILURE);
328 /* Create a digest BIO from an X509_ALGOR structure */
330 BIO *cms_DigestAlgorithm_init_bio(X509_ALGOR *digestAlgorithm)
333 ASN1_OBJECT *digestoid;
334 const EVP_MD *digest;
335 X509_ALGOR_get0(&digestoid, NULL, NULL, digestAlgorithm);
336 digest = EVP_get_digestbyobj(digestoid);
338 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO,
339 CMS_R_UNKNOWN_DIGEST_ALGORIHM);
342 mdbio = BIO_new(BIO_f_md());
343 if (mdbio == NULL || !BIO_set_md(mdbio, digest)) {
344 CMSerr(CMS_F_CMS_DIGESTALGORITHM_INIT_BIO, CMS_R_MD_BIO_INIT_ERROR);
353 /* Locate a message digest content from a BIO chain based on SignerInfo */
355 int cms_DigestAlgorithm_find_ctx(EVP_MD_CTX *mctx, BIO *chain,
360 X509_ALGOR_get0(&mdoid, NULL, NULL, mdalg);
361 nid = OBJ_obj2nid(mdoid);
362 /* Look for digest type to match signature */
365 chain = BIO_find_type(chain, BIO_TYPE_MD);
367 CMSerr(CMS_F_CMS_DIGESTALGORITHM_FIND_CTX,
368 CMS_R_NO_MATCHING_DIGEST);
371 BIO_get_md_ctx(chain, &mtmp);
372 if (EVP_MD_CTX_type(mtmp) == nid
374 * Workaround for broken implementations that use signature
375 * algorithm OID instead of digest.
377 || EVP_MD_pkey_type(EVP_MD_CTX_md(mtmp)) == nid)
378 return EVP_MD_CTX_copy_ex(mctx, mtmp);
379 chain = BIO_next(chain);
383 static STACK_OF(CMS_CertificateChoices)
384 **cms_get0_certificate_choices(CMS_ContentInfo *cms)
386 switch (OBJ_obj2nid(cms->contentType)) {
388 case NID_pkcs7_signed:
389 return &cms->d.signedData->certificates;
391 case NID_pkcs7_enveloped:
392 return &cms->d.envelopedData->originatorInfo->certificates;
395 CMSerr(CMS_F_CMS_GET0_CERTIFICATE_CHOICES,
396 CMS_R_UNSUPPORTED_CONTENT_TYPE);
402 CMS_CertificateChoices *CMS_add0_CertificateChoices(CMS_ContentInfo *cms)
404 STACK_OF(CMS_CertificateChoices) **pcerts;
405 CMS_CertificateChoices *cch;
406 pcerts = cms_get0_certificate_choices(cms);
410 *pcerts = sk_CMS_CertificateChoices_new_null();
413 cch = M_ASN1_new_of(CMS_CertificateChoices);
416 if (!sk_CMS_CertificateChoices_push(*pcerts, cch)) {
417 M_ASN1_free_of(cch, CMS_CertificateChoices);
423 int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert)
425 CMS_CertificateChoices *cch;
426 STACK_OF(CMS_CertificateChoices) **pcerts;
428 pcerts = cms_get0_certificate_choices(cms);
431 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
432 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
433 if (cch->type == CMS_CERTCHOICE_CERT) {
434 if (!X509_cmp(cch->d.certificate, cert)) {
435 CMSerr(CMS_F_CMS_ADD0_CERT,
436 CMS_R_CERTIFICATE_ALREADY_PRESENT);
441 cch = CMS_add0_CertificateChoices(cms);
444 cch->type = CMS_CERTCHOICE_CERT;
445 cch->d.certificate = cert;
449 int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert)
452 r = CMS_add0_cert(cms, cert);
458 static STACK_OF(CMS_RevocationInfoChoice)
459 **cms_get0_revocation_choices(CMS_ContentInfo *cms)
461 switch (OBJ_obj2nid(cms->contentType)) {
463 case NID_pkcs7_signed:
464 return &cms->d.signedData->crls;
466 case NID_pkcs7_enveloped:
467 return &cms->d.envelopedData->originatorInfo->crls;
470 CMSerr(CMS_F_CMS_GET0_REVOCATION_CHOICES,
471 CMS_R_UNSUPPORTED_CONTENT_TYPE);
477 CMS_RevocationInfoChoice *CMS_add0_RevocationInfoChoice(CMS_ContentInfo *cms)
479 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
480 CMS_RevocationInfoChoice *rch;
481 pcrls = cms_get0_revocation_choices(cms);
485 *pcrls = sk_CMS_RevocationInfoChoice_new_null();
488 rch = M_ASN1_new_of(CMS_RevocationInfoChoice);
491 if (!sk_CMS_RevocationInfoChoice_push(*pcrls, rch)) {
492 M_ASN1_free_of(rch, CMS_RevocationInfoChoice);
498 int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl)
500 CMS_RevocationInfoChoice *rch;
501 rch = CMS_add0_RevocationInfoChoice(cms);
504 rch->type = CMS_REVCHOICE_CRL;
509 int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl)
512 r = CMS_add0_crl(cms, crl);
514 X509_CRL_up_ref(crl);
518 STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms)
520 STACK_OF(X509) *certs = NULL;
521 CMS_CertificateChoices *cch;
522 STACK_OF(CMS_CertificateChoices) **pcerts;
524 pcerts = cms_get0_certificate_choices(cms);
527 for (i = 0; i < sk_CMS_CertificateChoices_num(*pcerts); i++) {
528 cch = sk_CMS_CertificateChoices_value(*pcerts, i);
529 if (cch->type == 0) {
531 certs = sk_X509_new_null();
535 if (!sk_X509_push(certs, cch->d.certificate)) {
536 sk_X509_pop_free(certs, X509_free);
539 X509_up_ref(cch->d.certificate);
546 STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms)
548 STACK_OF(X509_CRL) *crls = NULL;
549 STACK_OF(CMS_RevocationInfoChoice) **pcrls;
550 CMS_RevocationInfoChoice *rch;
552 pcrls = cms_get0_revocation_choices(cms);
555 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(*pcrls); i++) {
556 rch = sk_CMS_RevocationInfoChoice_value(*pcrls, i);
557 if (rch->type == 0) {
559 crls = sk_X509_CRL_new_null();
563 if (!sk_X509_CRL_push(crls, rch->d.crl)) {
564 sk_X509_CRL_pop_free(crls, X509_CRL_free);
567 X509_CRL_up_ref(rch->d.crl);
573 int cms_ias_cert_cmp(CMS_IssuerAndSerialNumber *ias, X509 *cert)
576 ret = X509_NAME_cmp(ias->issuer, X509_get_issuer_name(cert));
579 return ASN1_INTEGER_cmp(ias->serialNumber, X509_get_serialNumber(cert));
582 int cms_keyid_cert_cmp(ASN1_OCTET_STRING *keyid, X509 *cert)
584 const ASN1_OCTET_STRING *cert_keyid = X509_get0_subject_key_id(cert);
586 if (cert_keyid == NULL)
588 return ASN1_OCTET_STRING_cmp(keyid, cert_keyid);
591 int cms_set1_ias(CMS_IssuerAndSerialNumber **pias, X509 *cert)
593 CMS_IssuerAndSerialNumber *ias;
594 ias = M_ASN1_new_of(CMS_IssuerAndSerialNumber);
597 if (!X509_NAME_set(&ias->issuer, X509_get_issuer_name(cert)))
599 if (!ASN1_STRING_copy(ias->serialNumber, X509_get_serialNumber(cert)))
601 M_ASN1_free_of(*pias, CMS_IssuerAndSerialNumber);
605 M_ASN1_free_of(ias, CMS_IssuerAndSerialNumber);
606 CMSerr(CMS_F_CMS_SET1_IAS, ERR_R_MALLOC_FAILURE);
610 int cms_set1_keyid(ASN1_OCTET_STRING **pkeyid, X509 *cert)
612 ASN1_OCTET_STRING *keyid = NULL;
613 const ASN1_OCTET_STRING *cert_keyid;
614 cert_keyid = X509_get0_subject_key_id(cert);
615 if (cert_keyid == NULL) {
616 CMSerr(CMS_F_CMS_SET1_KEYID, CMS_R_CERTIFICATE_HAS_NO_KEYID);
619 keyid = ASN1_STRING_dup(cert_keyid);
621 CMSerr(CMS_F_CMS_SET1_KEYID, ERR_R_MALLOC_FAILURE);
624 ASN1_OCTET_STRING_free(*pkeyid);