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using System;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Cms
{
public class KekRecipientInfo
: Asn1Encodable
{
public static KekRecipientInfo GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is KekRecipientInfo kekRecipientInfo)
return kekRecipientInfo;
#pragma warning disable CS0618 // Type or member is obsolete
return new KekRecipientInfo(Asn1Sequence.GetInstance(obj));
#pragma warning restore CS0618 // Type or member is obsolete
}
public static KekRecipientInfo GetInstance(Asn1TaggedObject obj, bool explicitly)
{
#pragma warning disable CS0618 // Type or member is obsolete
return new KekRecipientInfo(Asn1Sequence.GetInstance(obj, explicitly));
#pragma warning restore CS0618 // Type or member is obsolete
}
private DerInteger version;
private KekIdentifier kekID;
private AlgorithmIdentifier keyEncryptionAlgorithm;
private Asn1OctetString encryptedKey;
public KekRecipientInfo(
KekIdentifier kekID,
AlgorithmIdentifier keyEncryptionAlgorithm,
Asn1OctetString encryptedKey)
{
this.version = new DerInteger(4);
this.kekID = kekID;
this.keyEncryptionAlgorithm = keyEncryptionAlgorithm;
this.encryptedKey = encryptedKey;
}
[Obsolete("Use 'GetInstance' instead")]
public KekRecipientInfo(
Asn1Sequence seq)
{
version = (DerInteger) seq[0];
kekID = KekIdentifier.GetInstance(seq[1]);
keyEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(seq[2]);
encryptedKey = (Asn1OctetString) seq[3];
}
public DerInteger Version
{
get { return version; }
}
public KekIdentifier KekID
{
get { return kekID; }
}
public AlgorithmIdentifier KeyEncryptionAlgorithm
{
get { return keyEncryptionAlgorithm; }
}
public Asn1OctetString EncryptedKey
{
get { return encryptedKey; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* KekRecipientInfo ::= Sequence {
* version CMSVersion, -- always set to 4
* kekID KekIdentifier,
* keyEncryptionAlgorithm KeyEncryptionAlgorithmIdentifier,
* encryptedKey EncryptedKey
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
return new DerSequence(version, kekID, keyEncryptionAlgorithm, encryptedKey);
}
}
}
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