1 /* crypto/cms/cms_env.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2008 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
55 #include "internal/cryptlib.h"
56 #include <openssl/asn1t.h>
57 #include <openssl/pem.h>
58 #include <openssl/x509v3.h>
59 #include <openssl/err.h>
60 #include <openssl/cms.h>
61 #include <openssl/rand.h>
62 #include <openssl/aes.h>
64 #include "internal/asn1_int.h"
66 /* CMS EnvelopedData Utilities */
68 DECLARE_STACK_OF(CMS_RecipientInfo)
70 CMS_EnvelopedData *cms_get0_enveloped(CMS_ContentInfo *cms)
72 if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_enveloped) {
73 CMSerr(CMS_F_CMS_GET0_ENVELOPED,
74 CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
77 return cms->d.envelopedData;
80 static CMS_EnvelopedData *cms_enveloped_data_init(CMS_ContentInfo *cms)
82 if (cms->d.other == NULL) {
83 cms->d.envelopedData = M_ASN1_new_of(CMS_EnvelopedData);
84 if (!cms->d.envelopedData) {
85 CMSerr(CMS_F_CMS_ENVELOPED_DATA_INIT, ERR_R_MALLOC_FAILURE);
88 cms->d.envelopedData->version = 0;
89 cms->d.envelopedData->encryptedContentInfo->contentType =
90 OBJ_nid2obj(NID_pkcs7_data);
91 ASN1_OBJECT_free(cms->contentType);
92 cms->contentType = OBJ_nid2obj(NID_pkcs7_enveloped);
93 return cms->d.envelopedData;
95 return cms_get0_enveloped(cms);
98 int cms_env_asn1_ctrl(CMS_RecipientInfo *ri, int cmd)
102 if (ri->type == CMS_RECIPINFO_TRANS)
103 pkey = ri->d.ktri->pkey;
104 else if (ri->type == CMS_RECIPINFO_AGREE) {
105 EVP_PKEY_CTX *pctx = ri->d.kari->pctx;
108 pkey = EVP_PKEY_CTX_get0_pkey(pctx);
113 if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
115 i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_ENVELOPE, cmd, ri);
117 CMSerr(CMS_F_CMS_ENV_ASN1_CTRL,
118 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
122 CMSerr(CMS_F_CMS_ENV_ASN1_CTRL, CMS_R_CTRL_FAILURE);
128 STACK_OF(CMS_RecipientInfo) *CMS_get0_RecipientInfos(CMS_ContentInfo *cms)
130 CMS_EnvelopedData *env;
131 env = cms_get0_enveloped(cms);
134 return env->recipientInfos;
137 int CMS_RecipientInfo_type(CMS_RecipientInfo *ri)
142 EVP_PKEY_CTX *CMS_RecipientInfo_get0_pkey_ctx(CMS_RecipientInfo *ri)
144 if (ri->type == CMS_RECIPINFO_TRANS)
145 return ri->d.ktri->pctx;
146 else if (ri->type == CMS_RECIPINFO_AGREE)
147 return ri->d.kari->pctx;
151 CMS_ContentInfo *CMS_EnvelopedData_create(const EVP_CIPHER *cipher)
153 CMS_ContentInfo *cms;
154 CMS_EnvelopedData *env;
155 cms = CMS_ContentInfo_new();
158 env = cms_enveloped_data_init(cms);
161 if (!cms_EncryptedContent_init(env->encryptedContentInfo,
166 CMS_ContentInfo_free(cms);
167 CMSerr(CMS_F_CMS_ENVELOPEDDATA_CREATE, ERR_R_MALLOC_FAILURE);
171 /* Key Transport Recipient Info (KTRI) routines */
173 /* Initialise a ktri based on passed certificate and key */
175 static int cms_RecipientInfo_ktri_init(CMS_RecipientInfo *ri, X509 *recip,
176 EVP_PKEY *pk, unsigned int flags)
178 CMS_KeyTransRecipientInfo *ktri;
181 ri->d.ktri = M_ASN1_new_of(CMS_KeyTransRecipientInfo);
184 ri->type = CMS_RECIPINFO_TRANS;
188 if (flags & CMS_USE_KEYID) {
190 idtype = CMS_RECIPINFO_KEYIDENTIFIER;
193 idtype = CMS_RECIPINFO_ISSUER_SERIAL;
197 * Not a typo: RecipientIdentifier and SignerIdentifier are the same
201 if (!cms_set1_SignerIdentifier(ktri->rid, recip, idtype))
205 CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
209 if (flags & CMS_KEY_PARAM) {
210 ktri->pctx = EVP_PKEY_CTX_new(ktri->pkey, NULL);
211 if (ktri->pctx == NULL)
213 if (EVP_PKEY_encrypt_init(ktri->pctx) <= 0)
215 } else if (!cms_env_asn1_ctrl(ri, 0))
221 * Add a recipient certificate using appropriate type of RecipientInfo
224 CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms,
225 X509 *recip, unsigned int flags)
227 CMS_RecipientInfo *ri = NULL;
228 CMS_EnvelopedData *env;
230 env = cms_get0_enveloped(cms);
234 /* Initialize recipient info */
235 ri = M_ASN1_new_of(CMS_RecipientInfo);
239 pk = X509_get0_pubkey(recip);
241 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, CMS_R_ERROR_GETTING_PUBLIC_KEY);
245 switch (cms_pkey_get_ri_type(pk)) {
247 case CMS_RECIPINFO_TRANS:
248 if (!cms_RecipientInfo_ktri_init(ri, recip, pk, flags))
252 case CMS_RECIPINFO_AGREE:
253 if (!cms_RecipientInfo_kari_init(ri, recip, pk, flags))
258 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
259 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
264 if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
270 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, ERR_R_MALLOC_FAILURE);
272 M_ASN1_free_of(ri, CMS_RecipientInfo);
277 int CMS_RecipientInfo_ktri_get0_algs(CMS_RecipientInfo *ri,
278 EVP_PKEY **pk, X509 **recip,
281 CMS_KeyTransRecipientInfo *ktri;
282 if (ri->type != CMS_RECIPINFO_TRANS) {
283 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_ALGS,
284 CMS_R_NOT_KEY_TRANSPORT);
293 *recip = ktri->recip;
295 *palg = ktri->keyEncryptionAlgorithm;
299 int CMS_RecipientInfo_ktri_get0_signer_id(CMS_RecipientInfo *ri,
300 ASN1_OCTET_STRING **keyid,
304 CMS_KeyTransRecipientInfo *ktri;
305 if (ri->type != CMS_RECIPINFO_TRANS) {
306 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_SIGNER_ID,
307 CMS_R_NOT_KEY_TRANSPORT);
312 return cms_SignerIdentifier_get0_signer_id(ktri->rid, keyid, issuer, sno);
315 int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo *ri, X509 *cert)
317 if (ri->type != CMS_RECIPINFO_TRANS) {
318 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP,
319 CMS_R_NOT_KEY_TRANSPORT);
322 return cms_SignerIdentifier_cert_cmp(ri->d.ktri->rid, cert);
325 int CMS_RecipientInfo_set0_pkey(CMS_RecipientInfo *ri, EVP_PKEY *pkey)
327 if (ri->type != CMS_RECIPINFO_TRANS) {
328 CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_PKEY, CMS_R_NOT_KEY_TRANSPORT);
331 ri->d.ktri->pkey = pkey;
335 /* Encrypt content key in key transport recipient info */
337 static int cms_RecipientInfo_ktri_encrypt(CMS_ContentInfo *cms,
338 CMS_RecipientInfo *ri)
340 CMS_KeyTransRecipientInfo *ktri;
341 CMS_EncryptedContentInfo *ec;
343 unsigned char *ek = NULL;
348 if (ri->type != CMS_RECIPINFO_TRANS) {
349 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, CMS_R_NOT_KEY_TRANSPORT);
353 ec = cms->d.envelopedData->encryptedContentInfo;
358 if (!cms_env_asn1_ctrl(ri, 0))
361 pctx = EVP_PKEY_CTX_new(ktri->pkey, NULL);
365 if (EVP_PKEY_encrypt_init(pctx) <= 0)
369 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_ENCRYPT,
370 EVP_PKEY_CTRL_CMS_ENCRYPT, 0, ri) <= 0) {
371 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, CMS_R_CTRL_ERROR);
375 if (EVP_PKEY_encrypt(pctx, NULL, &eklen, ec->key, ec->keylen) <= 0)
378 ek = OPENSSL_malloc(eklen);
381 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, ERR_R_MALLOC_FAILURE);
385 if (EVP_PKEY_encrypt(pctx, ek, &eklen, ec->key, ec->keylen) <= 0)
388 ASN1_STRING_set0(ktri->encryptedKey, ek, eklen);
394 EVP_PKEY_CTX_free(pctx);
401 /* Decrypt content key from KTRI */
403 static int cms_RecipientInfo_ktri_decrypt(CMS_ContentInfo *cms,
404 CMS_RecipientInfo *ri)
406 CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
407 EVP_PKEY *pkey = ktri->pkey;
408 unsigned char *ek = NULL;
411 CMS_EncryptedContentInfo *ec;
412 ec = cms->d.envelopedData->encryptedContentInfo;
414 if (ktri->pkey == NULL) {
415 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_NO_PRIVATE_KEY);
419 ktri->pctx = EVP_PKEY_CTX_new(pkey, NULL);
420 if (ktri->pctx == NULL)
423 if (EVP_PKEY_decrypt_init(ktri->pctx) <= 0)
426 if (!cms_env_asn1_ctrl(ri, 1))
429 if (EVP_PKEY_CTX_ctrl(ktri->pctx, -1, EVP_PKEY_OP_DECRYPT,
430 EVP_PKEY_CTRL_CMS_DECRYPT, 0, ri) <= 0) {
431 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_CTRL_ERROR);
435 if (EVP_PKEY_decrypt(ktri->pctx, NULL, &eklen,
436 ktri->encryptedKey->data,
437 ktri->encryptedKey->length) <= 0)
440 ek = OPENSSL_malloc(eklen);
443 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, ERR_R_MALLOC_FAILURE);
447 if (EVP_PKEY_decrypt(ktri->pctx, ek, &eklen,
448 ktri->encryptedKey->data,
449 ktri->encryptedKey->length) <= 0) {
450 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_CMS_LIB);
456 OPENSSL_clear_free(ec->key, ec->keylen);
461 EVP_PKEY_CTX_free(ktri->pctx);
469 /* Key Encrypted Key (KEK) RecipientInfo routines */
471 int CMS_RecipientInfo_kekri_id_cmp(CMS_RecipientInfo *ri,
472 const unsigned char *id, size_t idlen)
474 ASN1_OCTET_STRING tmp_os;
475 CMS_KEKRecipientInfo *kekri;
476 if (ri->type != CMS_RECIPINFO_KEK) {
477 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ID_CMP, CMS_R_NOT_KEK);
481 tmp_os.type = V_ASN1_OCTET_STRING;
483 tmp_os.data = (unsigned char *)id;
484 tmp_os.length = (int)idlen;
485 return ASN1_OCTET_STRING_cmp(&tmp_os, kekri->kekid->keyIdentifier);
488 /* For now hard code AES key wrap info */
490 static size_t aes_wrap_keylen(int nid)
493 case NID_id_aes128_wrap:
496 case NID_id_aes192_wrap:
499 case NID_id_aes256_wrap:
507 CMS_RecipientInfo *CMS_add0_recipient_key(CMS_ContentInfo *cms, int nid,
508 unsigned char *key, size_t keylen,
509 unsigned char *id, size_t idlen,
510 ASN1_GENERALIZEDTIME *date,
511 ASN1_OBJECT *otherTypeId,
512 ASN1_TYPE *otherType)
514 CMS_RecipientInfo *ri = NULL;
515 CMS_EnvelopedData *env;
516 CMS_KEKRecipientInfo *kekri;
517 env = cms_get0_enveloped(cms);
521 if (nid == NID_undef) {
524 nid = NID_id_aes128_wrap;
528 nid = NID_id_aes192_wrap;
532 nid = NID_id_aes256_wrap;
536 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, CMS_R_INVALID_KEY_LENGTH);
542 size_t exp_keylen = aes_wrap_keylen(nid);
545 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY,
546 CMS_R_UNSUPPORTED_KEK_ALGORITHM);
550 if (keylen != exp_keylen) {
551 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, CMS_R_INVALID_KEY_LENGTH);
557 /* Initialize recipient info */
558 ri = M_ASN1_new_of(CMS_RecipientInfo);
562 ri->d.kekri = M_ASN1_new_of(CMS_KEKRecipientInfo);
565 ri->type = CMS_RECIPINFO_KEK;
570 kekri->kekid->other = M_ASN1_new_of(CMS_OtherKeyAttribute);
571 if (kekri->kekid->other == NULL)
575 if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
578 /* After this point no calls can fail */
583 kekri->keylen = keylen;
585 ASN1_STRING_set0(kekri->kekid->keyIdentifier, id, idlen);
587 kekri->kekid->date = date;
589 if (kekri->kekid->other) {
590 kekri->kekid->other->keyAttrId = otherTypeId;
591 kekri->kekid->other->keyAttr = otherType;
594 X509_ALGOR_set0(kekri->keyEncryptionAlgorithm,
595 OBJ_nid2obj(nid), V_ASN1_UNDEF, NULL);
600 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, ERR_R_MALLOC_FAILURE);
602 M_ASN1_free_of(ri, CMS_RecipientInfo);
607 int CMS_RecipientInfo_kekri_get0_id(CMS_RecipientInfo *ri,
609 ASN1_OCTET_STRING **pid,
610 ASN1_GENERALIZEDTIME **pdate,
611 ASN1_OBJECT **potherid,
612 ASN1_TYPE **pothertype)
614 CMS_KEKIdentifier *rkid;
615 if (ri->type != CMS_RECIPINFO_KEK) {
616 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_GET0_ID, CMS_R_NOT_KEK);
619 rkid = ri->d.kekri->kekid;
621 *palg = ri->d.kekri->keyEncryptionAlgorithm;
623 *pid = rkid->keyIdentifier;
628 *potherid = rkid->other->keyAttrId;
634 *pothertype = rkid->other->keyAttr;
641 int CMS_RecipientInfo_set0_key(CMS_RecipientInfo *ri,
642 unsigned char *key, size_t keylen)
644 CMS_KEKRecipientInfo *kekri;
645 if (ri->type != CMS_RECIPINFO_KEK) {
646 CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_KEY, CMS_R_NOT_KEK);
652 kekri->keylen = keylen;
656 /* Encrypt content key in KEK recipient info */
658 static int cms_RecipientInfo_kekri_encrypt(CMS_ContentInfo *cms,
659 CMS_RecipientInfo *ri)
661 CMS_EncryptedContentInfo *ec;
662 CMS_KEKRecipientInfo *kekri;
664 unsigned char *wkey = NULL;
668 ec = cms->d.envelopedData->encryptedContentInfo;
673 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_NO_KEY);
677 if (AES_set_encrypt_key(kekri->key, kekri->keylen << 3, &actx)) {
678 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT,
679 CMS_R_ERROR_SETTING_KEY);
683 wkey = OPENSSL_malloc(ec->keylen + 8);
686 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, ERR_R_MALLOC_FAILURE);
690 wkeylen = AES_wrap_key(&actx, NULL, wkey, ec->key, ec->keylen);
693 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_WRAP_ERROR);
697 ASN1_STRING_set0(kekri->encryptedKey, wkey, wkeylen);
705 OPENSSL_cleanse(&actx, sizeof(actx));
711 /* Decrypt content key in KEK recipient info */
713 static int cms_RecipientInfo_kekri_decrypt(CMS_ContentInfo *cms,
714 CMS_RecipientInfo *ri)
716 CMS_EncryptedContentInfo *ec;
717 CMS_KEKRecipientInfo *kekri;
719 unsigned char *ukey = NULL;
723 ec = cms->d.envelopedData->encryptedContentInfo;
728 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, CMS_R_NO_KEY);
732 wrap_nid = OBJ_obj2nid(kekri->keyEncryptionAlgorithm->algorithm);
733 if (aes_wrap_keylen(wrap_nid) != kekri->keylen) {
734 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
735 CMS_R_INVALID_KEY_LENGTH);
739 /* If encrypted key length is invalid don't bother */
741 if (kekri->encryptedKey->length < 16) {
742 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
743 CMS_R_INVALID_ENCRYPTED_KEY_LENGTH);
747 if (AES_set_decrypt_key(kekri->key, kekri->keylen << 3, &actx)) {
748 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
749 CMS_R_ERROR_SETTING_KEY);
753 ukey = OPENSSL_malloc(kekri->encryptedKey->length - 8);
756 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, ERR_R_MALLOC_FAILURE);
760 ukeylen = AES_unwrap_key(&actx, NULL, ukey,
761 kekri->encryptedKey->data,
762 kekri->encryptedKey->length);
765 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, CMS_R_UNWRAP_ERROR);
770 ec->keylen = ukeylen;
778 OPENSSL_cleanse(&actx, sizeof(actx));
784 int CMS_RecipientInfo_decrypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri)
787 case CMS_RECIPINFO_TRANS:
788 return cms_RecipientInfo_ktri_decrypt(cms, ri);
790 case CMS_RECIPINFO_KEK:
791 return cms_RecipientInfo_kekri_decrypt(cms, ri);
793 case CMS_RECIPINFO_PASS:
794 return cms_RecipientInfo_pwri_crypt(cms, ri, 0);
797 CMSerr(CMS_F_CMS_RECIPIENTINFO_DECRYPT,
798 CMS_R_UNSUPPORTED_RECPIENTINFO_TYPE);
803 int CMS_RecipientInfo_encrypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri)
806 case CMS_RECIPINFO_TRANS:
807 return cms_RecipientInfo_ktri_encrypt(cms, ri);
809 case CMS_RECIPINFO_AGREE:
810 return cms_RecipientInfo_kari_encrypt(cms, ri);
812 case CMS_RECIPINFO_KEK:
813 return cms_RecipientInfo_kekri_encrypt(cms, ri);
815 case CMS_RECIPINFO_PASS:
816 return cms_RecipientInfo_pwri_crypt(cms, ri, 1);
819 CMSerr(CMS_F_CMS_RECIPIENTINFO_ENCRYPT,
820 CMS_R_UNSUPPORTED_RECIPIENT_TYPE);
825 /* Check structures and fixup version numbers (if necessary) */
827 static void cms_env_set_originfo_version(CMS_EnvelopedData *env)
829 CMS_OriginatorInfo *org = env->originatorInfo;
833 for (i = 0; i < sk_CMS_CertificateChoices_num(org->certificates); i++) {
834 CMS_CertificateChoices *cch;
835 cch = sk_CMS_CertificateChoices_value(org->certificates, i);
836 if (cch->type == CMS_CERTCHOICE_OTHER) {
839 } else if (cch->type == CMS_CERTCHOICE_V2ACERT) {
840 if (env->version < 3)
845 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(org->crls); i++) {
846 CMS_RevocationInfoChoice *rch;
847 rch = sk_CMS_RevocationInfoChoice_value(org->crls, i);
848 if (rch->type == CMS_REVCHOICE_OTHER) {
855 static void cms_env_set_version(CMS_EnvelopedData *env)
858 CMS_RecipientInfo *ri;
861 * Can't set version higher than 4 so if 4 or more already nothing to do.
863 if (env->version >= 4)
866 cms_env_set_originfo_version(env);
868 if (env->version >= 3)
871 for (i = 0; i < sk_CMS_RecipientInfo_num(env->recipientInfos); i++) {
872 ri = sk_CMS_RecipientInfo_value(env->recipientInfos, i);
873 if (ri->type == CMS_RECIPINFO_PASS || ri->type == CMS_RECIPINFO_OTHER) {
876 } else if (ri->type != CMS_RECIPINFO_TRANS
877 || ri->d.ktri->version != 0) {
881 if (env->version == 2)
883 if (env->originatorInfo || env->unprotectedAttrs)
888 BIO *cms_EnvelopedData_init_bio(CMS_ContentInfo *cms)
890 CMS_EncryptedContentInfo *ec;
891 STACK_OF(CMS_RecipientInfo) *rinfos;
892 CMS_RecipientInfo *ri;
896 /* Get BIO first to set up key */
898 ec = cms->d.envelopedData->encryptedContentInfo;
899 ret = cms_EncryptedContent_init_bio(ec);
901 /* If error or no cipher end of processing */
903 if (!ret || !ec->cipher)
906 /* Now encrypt content key according to each RecipientInfo type */
908 rinfos = cms->d.envelopedData->recipientInfos;
910 for (i = 0; i < sk_CMS_RecipientInfo_num(rinfos); i++) {
911 ri = sk_CMS_RecipientInfo_value(rinfos, i);
912 if (CMS_RecipientInfo_encrypt(cms, ri) <= 0) {
913 CMSerr(CMS_F_CMS_ENVELOPEDDATA_INIT_BIO,
914 CMS_R_ERROR_SETTING_RECIPIENTINFO);
918 cms_env_set_version(cms->d.envelopedData);
924 OPENSSL_clear_free(ec->key, ec->keylen);
935 * Get RecipientInfo type (if any) supported by a key (public or private). To
936 * retain compatibility with previous behaviour if the ctrl value isn't
937 * supported we assume key transport.
939 int cms_pkey_get_ri_type(EVP_PKEY *pk)
941 if (pk->ameth && pk->ameth->pkey_ctrl) {
943 i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_RI_TYPE, 0, &r);
947 return CMS_RECIPINFO_TRANS;