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using System;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Cms
{
public class EncryptedContentInfo
: Asn1Encodable
{
public static EncryptedContentInfo GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is EncryptedContentInfo encryptedContentInfo)
return encryptedContentInfo;
#pragma warning disable CS0618 // Type or member is obsolete
return new EncryptedContentInfo(Asn1Sequence.GetInstance(obj));
#pragma warning restore CS0618 // Type or member is obsolete
}
public static EncryptedContentInfo GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
#pragma warning disable CS0618 // Type or member is obsolete
return new EncryptedContentInfo(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
#pragma warning restore CS0618 // Type or member is obsolete
}
private DerObjectIdentifier contentType;
private AlgorithmIdentifier contentEncryptionAlgorithm;
private Asn1OctetString encryptedContent;
public EncryptedContentInfo(
DerObjectIdentifier contentType,
AlgorithmIdentifier contentEncryptionAlgorithm,
Asn1OctetString encryptedContent)
{
this.contentType = contentType;
this.contentEncryptionAlgorithm = contentEncryptionAlgorithm;
this.encryptedContent = encryptedContent;
}
[Obsolete("Use 'GetInstance' instead")]
public EncryptedContentInfo(
Asn1Sequence seq)
{
contentType = (DerObjectIdentifier) seq[0];
contentEncryptionAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
if (seq.Count > 2)
{
encryptedContent = Asn1OctetString.GetInstance(
(Asn1TaggedObject) seq[2], false);
}
}
public DerObjectIdentifier ContentType
{
get { return contentType; }
}
public AlgorithmIdentifier ContentEncryptionAlgorithm
{
get { return contentEncryptionAlgorithm; }
}
public Asn1OctetString EncryptedContent
{
get { return encryptedContent; }
}
/**
* Produce an object suitable for an Asn1OutputStream.
* <pre>
* EncryptedContentInfo ::= Sequence {
* contentType ContentType,
* contentEncryptionAlgorithm ContentEncryptionAlgorithmIdentifier,
* encryptedContent [0] IMPLICIT EncryptedContent OPTIONAL
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(
contentType, contentEncryptionAlgorithm);
if (encryptedContent != null)
{
v.Add(new BerTaggedObject(false, 0, encryptedContent));
}
return new BerSequence(v);
}
}
}
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