2 * Copyright 2008-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include "internal/cryptlib.h"
11 #include <openssl/asn1t.h>
12 #include <openssl/pem.h>
13 #include <openssl/x509v3.h>
14 #include <openssl/err.h>
15 #include <openssl/cms.h>
16 #include <openssl/aes.h>
18 #include "crypto/asn1.h"
19 #include "crypto/evp.h"
21 /* CMS EnvelopedData Utilities */
23 CMS_EnvelopedData *cms_get0_enveloped(CMS_ContentInfo *cms)
25 if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_enveloped) {
26 CMSerr(CMS_F_CMS_GET0_ENVELOPED,
27 CMS_R_CONTENT_TYPE_NOT_ENVELOPED_DATA);
30 return cms->d.envelopedData;
33 static CMS_EnvelopedData *cms_enveloped_data_init(CMS_ContentInfo *cms)
35 if (cms->d.other == NULL) {
36 cms->d.envelopedData = M_ASN1_new_of(CMS_EnvelopedData);
37 if (!cms->d.envelopedData) {
38 CMSerr(CMS_F_CMS_ENVELOPED_DATA_INIT, ERR_R_MALLOC_FAILURE);
41 cms->d.envelopedData->version = 0;
42 cms->d.envelopedData->encryptedContentInfo->contentType =
43 OBJ_nid2obj(NID_pkcs7_data);
44 ASN1_OBJECT_free(cms->contentType);
45 cms->contentType = OBJ_nid2obj(NID_pkcs7_enveloped);
46 return cms->d.envelopedData;
48 return cms_get0_enveloped(cms);
51 int cms_env_asn1_ctrl(CMS_RecipientInfo *ri, int cmd)
55 if (ri->type == CMS_RECIPINFO_TRANS)
56 pkey = ri->d.ktri->pkey;
57 else if (ri->type == CMS_RECIPINFO_AGREE) {
58 EVP_PKEY_CTX *pctx = ri->d.kari->pctx;
61 pkey = EVP_PKEY_CTX_get0_pkey(pctx);
66 if (!pkey->ameth || !pkey->ameth->pkey_ctrl)
68 i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_ENVELOPE, cmd, ri);
70 CMSerr(CMS_F_CMS_ENV_ASN1_CTRL,
71 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
75 CMSerr(CMS_F_CMS_ENV_ASN1_CTRL, CMS_R_CTRL_FAILURE);
81 STACK_OF(CMS_RecipientInfo) *CMS_get0_RecipientInfos(CMS_ContentInfo *cms)
83 CMS_EnvelopedData *env;
84 env = cms_get0_enveloped(cms);
87 return env->recipientInfos;
90 int CMS_RecipientInfo_type(CMS_RecipientInfo *ri)
95 EVP_PKEY_CTX *CMS_RecipientInfo_get0_pkey_ctx(CMS_RecipientInfo *ri)
97 if (ri->type == CMS_RECIPINFO_TRANS)
98 return ri->d.ktri->pctx;
99 else if (ri->type == CMS_RECIPINFO_AGREE)
100 return ri->d.kari->pctx;
104 CMS_ContentInfo *CMS_EnvelopedData_create(const EVP_CIPHER *cipher)
106 CMS_ContentInfo *cms;
107 CMS_EnvelopedData *env;
108 cms = CMS_ContentInfo_new();
111 env = cms_enveloped_data_init(cms);
114 if (!cms_EncryptedContent_init(env->encryptedContentInfo,
119 CMS_ContentInfo_free(cms);
120 CMSerr(CMS_F_CMS_ENVELOPEDDATA_CREATE, ERR_R_MALLOC_FAILURE);
124 /* Key Transport Recipient Info (KTRI) routines */
126 /* Initialise a ktri based on passed certificate and key */
128 static int cms_RecipientInfo_ktri_init(CMS_RecipientInfo *ri, X509 *recip,
129 EVP_PKEY *pk, unsigned int flags)
131 CMS_KeyTransRecipientInfo *ktri;
134 ri->d.ktri = M_ASN1_new_of(CMS_KeyTransRecipientInfo);
137 ri->type = CMS_RECIPINFO_TRANS;
141 if (flags & CMS_USE_KEYID) {
143 idtype = CMS_RECIPINFO_KEYIDENTIFIER;
146 idtype = CMS_RECIPINFO_ISSUER_SERIAL;
150 * Not a typo: RecipientIdentifier and SignerIdentifier are the same
154 if (!cms_set1_SignerIdentifier(ktri->rid, recip, idtype))
163 if (flags & CMS_KEY_PARAM) {
164 ktri->pctx = EVP_PKEY_CTX_new(ktri->pkey, NULL);
165 if (ktri->pctx == NULL)
167 if (EVP_PKEY_encrypt_init(ktri->pctx) <= 0)
169 } else if (!cms_env_asn1_ctrl(ri, 0))
175 * Add a recipient certificate using appropriate type of RecipientInfo
178 CMS_RecipientInfo *CMS_add1_recipient_cert(CMS_ContentInfo *cms,
179 X509 *recip, unsigned int flags)
181 CMS_RecipientInfo *ri = NULL;
182 CMS_EnvelopedData *env;
184 env = cms_get0_enveloped(cms);
188 /* Initialize recipient info */
189 ri = M_ASN1_new_of(CMS_RecipientInfo);
193 pk = X509_get0_pubkey(recip);
195 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, CMS_R_ERROR_GETTING_PUBLIC_KEY);
199 switch (cms_pkey_get_ri_type(pk)) {
201 case CMS_RECIPINFO_TRANS:
202 if (!cms_RecipientInfo_ktri_init(ri, recip, pk, flags))
206 case CMS_RECIPINFO_AGREE:
207 if (!cms_RecipientInfo_kari_init(ri, recip, pk, flags))
212 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT,
213 CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
218 if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
224 CMSerr(CMS_F_CMS_ADD1_RECIPIENT_CERT, ERR_R_MALLOC_FAILURE);
226 M_ASN1_free_of(ri, CMS_RecipientInfo);
231 int CMS_RecipientInfo_ktri_get0_algs(CMS_RecipientInfo *ri,
232 EVP_PKEY **pk, X509 **recip,
235 CMS_KeyTransRecipientInfo *ktri;
236 if (ri->type != CMS_RECIPINFO_TRANS) {
237 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_ALGS,
238 CMS_R_NOT_KEY_TRANSPORT);
247 *recip = ktri->recip;
249 *palg = ktri->keyEncryptionAlgorithm;
253 int CMS_RecipientInfo_ktri_get0_signer_id(CMS_RecipientInfo *ri,
254 ASN1_OCTET_STRING **keyid,
258 CMS_KeyTransRecipientInfo *ktri;
259 if (ri->type != CMS_RECIPINFO_TRANS) {
260 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_GET0_SIGNER_ID,
261 CMS_R_NOT_KEY_TRANSPORT);
266 return cms_SignerIdentifier_get0_signer_id(ktri->rid, keyid, issuer, sno);
269 int CMS_RecipientInfo_ktri_cert_cmp(CMS_RecipientInfo *ri, X509 *cert)
271 if (ri->type != CMS_RECIPINFO_TRANS) {
272 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_CERT_CMP,
273 CMS_R_NOT_KEY_TRANSPORT);
276 return cms_SignerIdentifier_cert_cmp(ri->d.ktri->rid, cert);
279 int CMS_RecipientInfo_set0_pkey(CMS_RecipientInfo *ri, EVP_PKEY *pkey)
281 if (ri->type != CMS_RECIPINFO_TRANS) {
282 CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_PKEY, CMS_R_NOT_KEY_TRANSPORT);
285 EVP_PKEY_free(ri->d.ktri->pkey);
286 ri->d.ktri->pkey = pkey;
290 /* Encrypt content key in key transport recipient info */
292 static int cms_RecipientInfo_ktri_encrypt(const CMS_ContentInfo *cms,
293 CMS_RecipientInfo *ri)
295 CMS_KeyTransRecipientInfo *ktri;
296 CMS_EncryptedContentInfo *ec;
298 unsigned char *ek = NULL;
303 if (ri->type != CMS_RECIPINFO_TRANS) {
304 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, CMS_R_NOT_KEY_TRANSPORT);
308 ec = cms->d.envelopedData->encryptedContentInfo;
313 if (!cms_env_asn1_ctrl(ri, 0))
316 pctx = EVP_PKEY_CTX_new(ktri->pkey, NULL);
320 if (EVP_PKEY_encrypt_init(pctx) <= 0)
324 if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_ENCRYPT,
325 EVP_PKEY_CTRL_CMS_ENCRYPT, 0, ri) <= 0) {
326 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, CMS_R_CTRL_ERROR);
330 if (EVP_PKEY_encrypt(pctx, NULL, &eklen, ec->key, ec->keylen) <= 0)
333 ek = OPENSSL_malloc(eklen);
336 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_ENCRYPT, ERR_R_MALLOC_FAILURE);
340 if (EVP_PKEY_encrypt(pctx, ek, &eklen, ec->key, ec->keylen) <= 0)
343 ASN1_STRING_set0(ktri->encryptedKey, ek, eklen);
349 EVP_PKEY_CTX_free(pctx);
356 /* Decrypt content key from KTRI */
358 static int cms_RecipientInfo_ktri_decrypt(CMS_ContentInfo *cms,
359 CMS_RecipientInfo *ri)
361 CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
362 EVP_PKEY *pkey = ktri->pkey;
363 unsigned char *ek = NULL;
367 CMS_EncryptedContentInfo *ec;
368 ec = cms->d.envelopedData->encryptedContentInfo;
370 if (ktri->pkey == NULL) {
371 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_NO_PRIVATE_KEY);
375 if (cms->d.envelopedData->encryptedContentInfo->havenocert
376 && !cms->d.envelopedData->encryptedContentInfo->debug) {
377 X509_ALGOR *calg = ec->contentEncryptionAlgorithm;
378 const EVP_CIPHER *ciph = EVP_get_cipherbyobj(calg->algorithm);
381 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_UNKNOWN_CIPHER);
385 fixlen = EVP_CIPHER_key_length(ciph);
388 ktri->pctx = EVP_PKEY_CTX_new(pkey, NULL);
389 if (ktri->pctx == NULL)
392 if (EVP_PKEY_decrypt_init(ktri->pctx) <= 0)
395 if (!cms_env_asn1_ctrl(ri, 1))
398 if (EVP_PKEY_CTX_ctrl(ktri->pctx, -1, EVP_PKEY_OP_DECRYPT,
399 EVP_PKEY_CTRL_CMS_DECRYPT, 0, ri) <= 0) {
400 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_CTRL_ERROR);
404 if (EVP_PKEY_decrypt(ktri->pctx, NULL, &eklen,
405 ktri->encryptedKey->data,
406 ktri->encryptedKey->length) <= 0)
409 ek = OPENSSL_malloc(eklen);
412 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, ERR_R_MALLOC_FAILURE);
416 if (EVP_PKEY_decrypt(ktri->pctx, ek, &eklen,
417 ktri->encryptedKey->data,
418 ktri->encryptedKey->length) <= 0
420 || (fixlen != 0 && eklen != fixlen)) {
421 CMSerr(CMS_F_CMS_RECIPIENTINFO_KTRI_DECRYPT, CMS_R_CMS_LIB);
427 OPENSSL_clear_free(ec->key, ec->keylen);
432 EVP_PKEY_CTX_free(ktri->pctx);
440 /* Key Encrypted Key (KEK) RecipientInfo routines */
442 int CMS_RecipientInfo_kekri_id_cmp(CMS_RecipientInfo *ri,
443 const unsigned char *id, size_t idlen)
445 ASN1_OCTET_STRING tmp_os;
446 CMS_KEKRecipientInfo *kekri;
447 if (ri->type != CMS_RECIPINFO_KEK) {
448 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ID_CMP, CMS_R_NOT_KEK);
452 tmp_os.type = V_ASN1_OCTET_STRING;
454 tmp_os.data = (unsigned char *)id;
455 tmp_os.length = (int)idlen;
456 return ASN1_OCTET_STRING_cmp(&tmp_os, kekri->kekid->keyIdentifier);
459 /* For now hard code AES key wrap info */
461 static size_t aes_wrap_keylen(int nid)
464 case NID_id_aes128_wrap:
467 case NID_id_aes192_wrap:
470 case NID_id_aes256_wrap:
478 CMS_RecipientInfo *CMS_add0_recipient_key(CMS_ContentInfo *cms, int nid,
479 unsigned char *key, size_t keylen,
480 unsigned char *id, size_t idlen,
481 ASN1_GENERALIZEDTIME *date,
482 ASN1_OBJECT *otherTypeId,
483 ASN1_TYPE *otherType)
485 CMS_RecipientInfo *ri = NULL;
486 CMS_EnvelopedData *env;
487 CMS_KEKRecipientInfo *kekri;
488 env = cms_get0_enveloped(cms);
492 if (nid == NID_undef) {
495 nid = NID_id_aes128_wrap;
499 nid = NID_id_aes192_wrap;
503 nid = NID_id_aes256_wrap;
507 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, CMS_R_INVALID_KEY_LENGTH);
513 size_t exp_keylen = aes_wrap_keylen(nid);
516 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY,
517 CMS_R_UNSUPPORTED_KEK_ALGORITHM);
521 if (keylen != exp_keylen) {
522 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, CMS_R_INVALID_KEY_LENGTH);
528 /* Initialize recipient info */
529 ri = M_ASN1_new_of(CMS_RecipientInfo);
533 ri->d.kekri = M_ASN1_new_of(CMS_KEKRecipientInfo);
536 ri->type = CMS_RECIPINFO_KEK;
541 kekri->kekid->other = M_ASN1_new_of(CMS_OtherKeyAttribute);
542 if (kekri->kekid->other == NULL)
546 if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
549 /* After this point no calls can fail */
554 kekri->keylen = keylen;
556 ASN1_STRING_set0(kekri->kekid->keyIdentifier, id, idlen);
558 kekri->kekid->date = date;
560 if (kekri->kekid->other) {
561 kekri->kekid->other->keyAttrId = otherTypeId;
562 kekri->kekid->other->keyAttr = otherType;
565 X509_ALGOR_set0(kekri->keyEncryptionAlgorithm,
566 OBJ_nid2obj(nid), V_ASN1_UNDEF, NULL);
571 CMSerr(CMS_F_CMS_ADD0_RECIPIENT_KEY, ERR_R_MALLOC_FAILURE);
573 M_ASN1_free_of(ri, CMS_RecipientInfo);
578 int CMS_RecipientInfo_kekri_get0_id(CMS_RecipientInfo *ri,
580 ASN1_OCTET_STRING **pid,
581 ASN1_GENERALIZEDTIME **pdate,
582 ASN1_OBJECT **potherid,
583 ASN1_TYPE **pothertype)
585 CMS_KEKIdentifier *rkid;
586 if (ri->type != CMS_RECIPINFO_KEK) {
587 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_GET0_ID, CMS_R_NOT_KEK);
590 rkid = ri->d.kekri->kekid;
592 *palg = ri->d.kekri->keyEncryptionAlgorithm;
594 *pid = rkid->keyIdentifier;
599 *potherid = rkid->other->keyAttrId;
605 *pothertype = rkid->other->keyAttr;
612 int CMS_RecipientInfo_set0_key(CMS_RecipientInfo *ri,
613 unsigned char *key, size_t keylen)
615 CMS_KEKRecipientInfo *kekri;
616 if (ri->type != CMS_RECIPINFO_KEK) {
617 CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_KEY, CMS_R_NOT_KEK);
623 kekri->keylen = keylen;
627 /* Encrypt content key in KEK recipient info */
629 static int cms_RecipientInfo_kekri_encrypt(const CMS_ContentInfo *cms,
630 CMS_RecipientInfo *ri)
632 CMS_EncryptedContentInfo *ec;
633 CMS_KEKRecipientInfo *kekri;
635 unsigned char *wkey = NULL;
639 ec = cms->d.envelopedData->encryptedContentInfo;
644 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_NO_KEY);
648 if (AES_set_encrypt_key(kekri->key, kekri->keylen << 3, &actx)) {
649 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT,
650 CMS_R_ERROR_SETTING_KEY);
654 wkey = OPENSSL_malloc(ec->keylen + 8);
657 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, ERR_R_MALLOC_FAILURE);
661 wkeylen = AES_wrap_key(&actx, NULL, wkey, ec->key, ec->keylen);
664 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_ENCRYPT, CMS_R_WRAP_ERROR);
668 ASN1_STRING_set0(kekri->encryptedKey, wkey, wkeylen);
676 OPENSSL_cleanse(&actx, sizeof(actx));
682 /* Decrypt content key in KEK recipient info */
684 static int cms_RecipientInfo_kekri_decrypt(CMS_ContentInfo *cms,
685 CMS_RecipientInfo *ri)
687 CMS_EncryptedContentInfo *ec;
688 CMS_KEKRecipientInfo *kekri;
690 unsigned char *ukey = NULL;
694 ec = cms->d.envelopedData->encryptedContentInfo;
699 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, CMS_R_NO_KEY);
703 wrap_nid = OBJ_obj2nid(kekri->keyEncryptionAlgorithm->algorithm);
704 if (aes_wrap_keylen(wrap_nid) != kekri->keylen) {
705 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
706 CMS_R_INVALID_KEY_LENGTH);
710 /* If encrypted key length is invalid don't bother */
712 if (kekri->encryptedKey->length < 16) {
713 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
714 CMS_R_INVALID_ENCRYPTED_KEY_LENGTH);
718 if (AES_set_decrypt_key(kekri->key, kekri->keylen << 3, &actx)) {
719 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT,
720 CMS_R_ERROR_SETTING_KEY);
724 ukey = OPENSSL_malloc(kekri->encryptedKey->length - 8);
727 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, ERR_R_MALLOC_FAILURE);
731 ukeylen = AES_unwrap_key(&actx, NULL, ukey,
732 kekri->encryptedKey->data,
733 kekri->encryptedKey->length);
736 CMSerr(CMS_F_CMS_RECIPIENTINFO_KEKRI_DECRYPT, CMS_R_UNWRAP_ERROR);
741 ec->keylen = ukeylen;
749 OPENSSL_cleanse(&actx, sizeof(actx));
755 int CMS_RecipientInfo_decrypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri)
758 case CMS_RECIPINFO_TRANS:
759 return cms_RecipientInfo_ktri_decrypt(cms, ri);
761 case CMS_RECIPINFO_KEK:
762 return cms_RecipientInfo_kekri_decrypt(cms, ri);
764 case CMS_RECIPINFO_PASS:
765 return cms_RecipientInfo_pwri_crypt(cms, ri, 0);
768 CMSerr(CMS_F_CMS_RECIPIENTINFO_DECRYPT,
769 CMS_R_UNSUPPORTED_RECIPIENTINFO_TYPE);
774 int CMS_RecipientInfo_encrypt(const CMS_ContentInfo *cms, CMS_RecipientInfo *ri)
777 case CMS_RECIPINFO_TRANS:
778 return cms_RecipientInfo_ktri_encrypt(cms, ri);
780 case CMS_RECIPINFO_AGREE:
781 return cms_RecipientInfo_kari_encrypt(cms, ri);
783 case CMS_RECIPINFO_KEK:
784 return cms_RecipientInfo_kekri_encrypt(cms, ri);
786 case CMS_RECIPINFO_PASS:
787 return cms_RecipientInfo_pwri_crypt(cms, ri, 1);
790 CMSerr(CMS_F_CMS_RECIPIENTINFO_ENCRYPT,
791 CMS_R_UNSUPPORTED_RECIPIENT_TYPE);
796 /* Check structures and fixup version numbers (if necessary) */
798 static void cms_env_set_originfo_version(CMS_EnvelopedData *env)
800 CMS_OriginatorInfo *org = env->originatorInfo;
804 for (i = 0; i < sk_CMS_CertificateChoices_num(org->certificates); i++) {
805 CMS_CertificateChoices *cch;
806 cch = sk_CMS_CertificateChoices_value(org->certificates, i);
807 if (cch->type == CMS_CERTCHOICE_OTHER) {
810 } else if (cch->type == CMS_CERTCHOICE_V2ACERT) {
811 if (env->version < 3)
816 for (i = 0; i < sk_CMS_RevocationInfoChoice_num(org->crls); i++) {
817 CMS_RevocationInfoChoice *rch;
818 rch = sk_CMS_RevocationInfoChoice_value(org->crls, i);
819 if (rch->type == CMS_REVCHOICE_OTHER) {
826 static void cms_env_set_version(CMS_EnvelopedData *env)
829 CMS_RecipientInfo *ri;
832 * Can't set version higher than 4 so if 4 or more already nothing to do.
834 if (env->version >= 4)
837 cms_env_set_originfo_version(env);
839 if (env->version >= 3)
842 for (i = 0; i < sk_CMS_RecipientInfo_num(env->recipientInfos); i++) {
843 ri = sk_CMS_RecipientInfo_value(env->recipientInfos, i);
844 if (ri->type == CMS_RECIPINFO_PASS || ri->type == CMS_RECIPINFO_OTHER) {
847 } else if (ri->type != CMS_RECIPINFO_TRANS
848 || ri->d.ktri->version != 0) {
852 if (env->originatorInfo || env->unprotectedAttrs)
854 if (env->version == 2)
859 BIO *cms_EnvelopedData_init_bio(const CMS_ContentInfo *cms)
861 CMS_EncryptedContentInfo *ec;
862 STACK_OF(CMS_RecipientInfo) *rinfos;
863 CMS_RecipientInfo *ri;
867 /* Get BIO first to set up key */
869 ec = cms->d.envelopedData->encryptedContentInfo;
870 ret = cms_EncryptedContent_init_bio(ec);
872 /* If error or no cipher end of processing */
874 if (!ret || !ec->cipher)
877 /* Now encrypt content key according to each RecipientInfo type */
879 rinfos = cms->d.envelopedData->recipientInfos;
881 for (i = 0; i < sk_CMS_RecipientInfo_num(rinfos); i++) {
882 ri = sk_CMS_RecipientInfo_value(rinfos, i);
883 if (CMS_RecipientInfo_encrypt(cms, ri) <= 0) {
884 CMSerr(CMS_F_CMS_ENVELOPEDDATA_INIT_BIO,
885 CMS_R_ERROR_SETTING_RECIPIENTINFO);
889 cms_env_set_version(cms->d.envelopedData);
895 OPENSSL_clear_free(ec->key, ec->keylen);
906 * Get RecipientInfo type (if any) supported by a key (public or private). To
907 * retain compatibility with previous behaviour if the ctrl value isn't
908 * supported we assume key transport.
910 int cms_pkey_get_ri_type(EVP_PKEY *pk)
912 if (pk->ameth && pk->ameth->pkey_ctrl) {
914 i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_RI_TYPE, 0, &r);
918 return CMS_RECIPINFO_TRANS;