crypto/cms/cms_asn1.c - platform/external/openssl - Git at Google

 /* crypto/cms/cms_asn1.c */
 /* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
  * project.
  */
 /* ====================================================================
  * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
  *    the documentation and/or other materials provided with the
  *    distribution.
  *
  * 3. All advertising materials mentioning features or use of this
  *    software must display the following acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  *
  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  *    endorse or promote products derived from this software without
  *    prior written permission. For written permission, please contact
  *    [email protected].
  *
  * 5. Products derived from this software may not be called "OpenSSL"
  *    nor may "OpenSSL" appear in their names without prior written
  *    permission of the OpenSSL Project.
  *
  * 6. Redistributions of any form whatsoever must retain the following
  *    acknowledgment:
  *    "This product includes software developed by the OpenSSL Project
  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  *
  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  * ====================================================================
  */

 #include <openssl/asn1t.h>
 #include <openssl/pem.h>
 #include <openssl/x509v3.h>
 #include "cms.h"
 #include "cms_lcl.h"


 ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
 	ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
 	ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
 } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)

 ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
 	ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
 	ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
 } ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)

 ASN1_CHOICE(CMS_CertificateChoices) = {
 	ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
 	ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
 	ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
 	ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
 	ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
 } ASN1_CHOICE_END(CMS_CertificateChoices)

 ASN1_CHOICE(CMS_SignerIdentifier) = {
 	ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
 	ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
 } ASN1_CHOICE_END(CMS_SignerIdentifier)

 ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
 	ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
 	ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
 } ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)

 /* Minor tweak to operation: free up signer key, cert */
 static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
 							void *exarg)
 	{
 	if(operation == ASN1_OP_FREE_POST)
 		{
 		CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
 		if (si->pkey)
 			EVP_PKEY_free(si->pkey);
 		if (si->signer)
 			X509_free(si->signer);
 		}
 	return 1;
 	}

 ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
 	ASN1_SIMPLE(CMS_SignerInfo, version, LONG),
 	ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
 	ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
 	ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
 	ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
 	ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
 } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)

 ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
 	ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
 	ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
 } ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)

 ASN1_CHOICE(CMS_RevocationInfoChoice) = {
 	ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
 	ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
 } ASN1_CHOICE_END(CMS_RevocationInfoChoice)

 ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
 	ASN1_SIMPLE(CMS_SignedData, version, LONG),
 	ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
 	ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
 	ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
 	ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
 	ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
 } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)

 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
 	ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
 	ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
 } ASN1_SEQUENCE_END(CMS_OriginatorInfo)

 ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = {
 	ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
 	ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
 	ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedContentInfo)

 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
 	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, version, LONG),
 	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
 	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)

 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
 	ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
 	ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)

 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
 	ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
 	ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
 	ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)

 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
   ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
   ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
 } ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)

 ASN1_SEQUENCE(CMS_RecipientEncryptedKey) = {
 	ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
 	ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END(CMS_RecipientEncryptedKey)

 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
   ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
   ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)

 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
   ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
 } ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)

 ASN1_SEQUENCE(CMS_KeyAgreeRecipientInfo) = {
 	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
 	ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
 	ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
 	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
 	ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
 } ASN1_SEQUENCE_END(CMS_KeyAgreeRecipientInfo)

 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
 	ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
 	ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
 	ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
 } ASN1_SEQUENCE_END(CMS_KEKIdentifier)

 ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
 	ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
 	ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
 	ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)

 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
 	ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
 	ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
 	ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)

 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
   ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
   ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
 } ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)

 /* Free up RecipientInfo additional data */
 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
 							void *exarg)
 	{
 	if(operation == ASN1_OP_FREE_PRE)
 		{
 		CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
 		if (ri->type == CMS_RECIPINFO_TRANS)
 			{
 			CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
 			if (ktri->pkey)
 				EVP_PKEY_free(ktri->pkey);
 			if (ktri->recip)
 				X509_free(ktri->recip);
 			}
 		else if (ri->type == CMS_RECIPINFO_KEK)
 			{
 			CMS_KEKRecipientInfo *kekri = ri->d.kekri;
 			if (kekri->key)
 				{
 				OPENSSL_cleanse(kekri->key, kekri->keylen);
 				OPENSSL_free(kekri->key);
 				}
 			}
 		else if (ri->type == CMS_RECIPINFO_PASS)
 			{
 			CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
 			if (pwri->pass)
 				{
 				OPENSSL_cleanse(pwri->pass, pwri->passlen);
 				OPENSSL_free(pwri->pass);
 				}
 			}
 		}
 	return 1;
 	}

 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
 	ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
 	ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
 	ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
 	ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
 	ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)

 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
 	ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
 	ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
 	ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
 	ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
 	ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)

 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
 	ASN1_SIMPLE(CMS_DigestedData, version, LONG),
 	ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
 	ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)

 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
 	ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
 	ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
 	ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)

 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
 	ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
 	ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
 	ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
 	ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
 	ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
 	ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
 	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
 	ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
 	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
 } ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)

 ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
 	ASN1_SIMPLE(CMS_CompressedData, version, LONG),
 	ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
 	ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)

 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */

 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);

 ASN1_ADB(CMS_ContentInfo) = {
 	ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
 	ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
 	ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
 	ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
 	ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
 	ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
 	ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
 } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);

 /* CMS streaming support */
 static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
 							void *exarg)
 	{
 	ASN1_STREAM_ARG *sarg = exarg;
 	CMS_ContentInfo *cms = NULL;
 	if (pval)
 		cms = (CMS_ContentInfo *)*pval;
 	else
 		return 1;
 	switch(operation)
 		{

 		case ASN1_OP_STREAM_PRE:
 		if (CMS_stream(&sarg->boundary, cms) <= 0)
 			return 0;
 		case ASN1_OP_DETACHED_PRE:
 		sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
 		if (!sarg->ndef_bio)
 			return 0;
 		break;

 		case ASN1_OP_STREAM_POST:
 		case ASN1_OP_DETACHED_POST:
 		if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
 			return 0;
 		break;

 		}
 	return 1;
 	}

 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
 	ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
 	ASN1_ADB_OBJECT(CMS_ContentInfo)
 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)

 /* Specials for signed attributes */

 /* When signing attributes we want to reorder them to match the sorted
  * encoding.
  */

 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
 	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)

 /* When verifying attributes we need to use the received order. So
  * we use SEQUENCE OF and tag it to SET OF
  */

 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
 	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
 				V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)


 ASN1_CHOICE(CMS_ReceiptsFrom) = {
   ASN1_IMP(CMS_ReceiptsFrom, d.allOrFirstTier, LONG, 0),
   ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
 } ASN1_CHOICE_END(CMS_ReceiptsFrom)

 ASN1_SEQUENCE(CMS_ReceiptRequest) = {
   ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
   ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
   ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
 } ASN1_SEQUENCE_END(CMS_ReceiptRequest)

 ASN1_SEQUENCE(CMS_Receipt) = {
   ASN1_SIMPLE(CMS_Receipt, version, LONG),
   ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
   ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
   ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
 } ASN1_SEQUENCE_END(CMS_Receipt)
	/* crypto/cms/cms_asn1.c */
	/* Written by Dr Stephen N Henson ([email protected]) for the OpenSSL
	* project.
	*/
	/* ====================================================================
	* Copyright (c) 2008 The OpenSSL Project. All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	*
	* 3. All advertising materials mentioning features or use of this
	* software must display the following acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
	*
	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
	* endorse or promote products derived from this software without
	* prior written permission. For written permission, please contact
	* [email protected].
	*
	* 5. Products derived from this software may not be called "OpenSSL"
	* nor may "OpenSSL" appear in their names without prior written
	* permission of the OpenSSL Project.
	*
	* 6. Redistributions of any form whatsoever must retain the following
	* acknowledgment:
	* "This product includes software developed by the OpenSSL Project
	* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
	*
	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
	* OF THE POSSIBILITY OF SUCH DAMAGE.
	* ====================================================================
	*/

	#include <openssl/asn1t.h>
	#include <openssl/pem.h>
	#include <openssl/x509v3.h>
	#include "cms.h"
	#include "cms_lcl.h"


	ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
	ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
	ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
	} ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)

	ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
	ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
	ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
	} ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)

	ASN1_CHOICE(CMS_CertificateChoices) = {
	ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
	ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
	ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
	ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
	ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
	} ASN1_CHOICE_END(CMS_CertificateChoices)

	ASN1_CHOICE(CMS_SignerIdentifier) = {
	ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
	ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
	} ASN1_CHOICE_END(CMS_SignerIdentifier)

	ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
	ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
	ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
	} ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)

	/* Minor tweak to operation: free up signer key, cert */
	static int cms_si_cb(int operation, ASN1_VALUE *pval, const ASN1_ITEM it,
	void *exarg)
	{
	if(operation == ASN1_OP_FREE_POST)
	{
	CMS_SignerInfo si = (CMS_SignerInfo )*pval;
	if (si->pkey)
	EVP_PKEY_free(si->pkey);
	if (si->signer)
	X509_free(si->signer);
	}
	return 1;
	}

	ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
	ASN1_SIMPLE(CMS_SignerInfo, version, LONG),
	ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
	ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
	ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
	ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
	ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
	} ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)

	ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
	ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
	ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
	} ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)

	ASN1_CHOICE(CMS_RevocationInfoChoice) = {
	ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
	ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
	} ASN1_CHOICE_END(CMS_RevocationInfoChoice)

	ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
	ASN1_SIMPLE(CMS_SignedData, version, LONG),
	ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
	ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
	ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
	ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
	} ASN1_NDEF_SEQUENCE_END(CMS_SignedData)

	ASN1_SEQUENCE(CMS_OriginatorInfo) = {
	ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
	ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
	} ASN1_SEQUENCE_END(CMS_OriginatorInfo)

	ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = {
	ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
	ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
	ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
	} ASN1_NDEF_SEQUENCE_END(CMS_EncryptedContentInfo)

	ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, version, LONG),
	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
	} ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)

	ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
	ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
	ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
	} ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)

	ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
	ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
	ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
	ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
	} ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)

	ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
	ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
	ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
	} ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)

	ASN1_SEQUENCE(CMS_RecipientEncryptedKey) = {
	ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
	ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
	} ASN1_SEQUENCE_END(CMS_RecipientEncryptedKey)

	ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
	ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
	} ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)

	ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
	ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
	ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
	ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
	} ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)

	ASN1_SEQUENCE(CMS_KeyAgreeRecipientInfo) = {
	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
	ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
	ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
	} ASN1_SEQUENCE_END(CMS_KeyAgreeRecipientInfo)

	ASN1_SEQUENCE(CMS_KEKIdentifier) = {
	ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
	ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
	ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
	} ASN1_SEQUENCE_END(CMS_KEKIdentifier)

	ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
	ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
	} ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)

	ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
	ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
	} ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)

	ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
	ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
	ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
	} ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)

	/* Free up RecipientInfo additional data */
	static int cms_ri_cb(int operation, ASN1_VALUE *pval, const ASN1_ITEM it,
	void *exarg)
	{
	if(operation == ASN1_OP_FREE_PRE)
	{
	CMS_RecipientInfo ri = (CMS_RecipientInfo )*pval;
	if (ri->type == CMS_RECIPINFO_TRANS)
	{
	CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
	if (ktri->pkey)
	EVP_PKEY_free(ktri->pkey);
	if (ktri->recip)
	X509_free(ktri->recip);
	}
	else if (ri->type == CMS_RECIPINFO_KEK)
	{
	CMS_KEKRecipientInfo *kekri = ri->d.kekri;
	if (kekri->key)
	{
	OPENSSL_cleanse(kekri->key, kekri->keylen);
	OPENSSL_free(kekri->key);
	}
	}
	else if (ri->type == CMS_RECIPINFO_PASS)
	{
	CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
	if (pwri->pass)
	{
	OPENSSL_cleanse(pwri->pass, pwri->passlen);
	OPENSSL_free(pwri->pass);
	}
	}
	}
	return 1;
	}

	ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
	ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
	ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
	ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
	ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
	ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
	} ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)

	ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
	ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
	ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
	ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
	ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
	} ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)

	ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
	ASN1_SIMPLE(CMS_DigestedData, version, LONG),
	ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
	} ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)

	ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
	ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
	ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
	} ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)

	ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
	ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
	ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
	ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
	ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
	ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
	ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
	ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
	} ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)

	ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
	ASN1_SIMPLE(CMS_CompressedData, version, LONG),
	ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	} ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)

	/* This is the ANY DEFINED BY table for the top level ContentInfo structure */

	ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);

	ASN1_ADB(CMS_ContentInfo) = {
	ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
	ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
	ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
	ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
	ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
	ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
	ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
	} ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);

	/* CMS streaming support */
	static int cms_cb(int operation, ASN1_VALUE *pval, const ASN1_ITEM it,
	void *exarg)
	{
	ASN1_STREAM_ARG *sarg = exarg;
	CMS_ContentInfo *cms = NULL;
	if (pval)
	cms = (CMS_ContentInfo )pval;
	else
	return 1;
	switch(operation)
	{

	case ASN1_OP_STREAM_PRE:
	if (CMS_stream(&sarg->boundary, cms) <= 0)
	return 0;
	case ASN1_OP_DETACHED_PRE:
	sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
	if (!sarg->ndef_bio)
	return 0;
	break;

	case ASN1_OP_STREAM_POST:
	case ASN1_OP_DETACHED_POST:
	if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
	return 0;
	break;

	}
	return 1;
	}

	ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
	ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
	ASN1_ADB_OBJECT(CMS_ContentInfo)
	} ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)

	/* Specials for signed attributes */

	/* When signing attributes we want to reorder them to match the sorted
	* encoding.
	*/

	ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
	ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)

	/* When verifying attributes we need to use the received order. So
	* we use SEQUENCE OF and tag it to SET OF
	*/

	ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF \| ASN1_TFLG_IMPTAG \| ASN1_TFLG_UNIVERSAL,
	V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
	ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)



	ASN1_CHOICE(CMS_ReceiptsFrom) = {
	ASN1_IMP(CMS_ReceiptsFrom, d.allOrFirstTier, LONG, 0),
	ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
	} ASN1_CHOICE_END(CMS_ReceiptsFrom)

	ASN1_SEQUENCE(CMS_ReceiptRequest) = {
	ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
	ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
	ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
	} ASN1_SEQUENCE_END(CMS_ReceiptRequest)

	ASN1_SEQUENCE(CMS_Receipt) = {
	ASN1_SIMPLE(CMS_Receipt, version, LONG),
	ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
	ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
	ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
	} ASN1_SEQUENCE_END(CMS_Receipt)