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using System;
using Org.BouncyCastle.Asn1.X509;
namespace Org.BouncyCastle.Asn1.Cms
{
/**
* RFC 3274 - CMS Compressed Data.
* <pre>
* CompressedData ::= Sequence {
* version CMSVersion,
* compressionAlgorithm CompressionAlgorithmIdentifier,
* encapContentInfo EncapsulatedContentInfo
* }
* </pre>
*/
public class CompressedData
: Asn1Encodable
{
public static CompressedData GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is CompressedData compressedData)
return compressedData;
#pragma warning disable CS0618 // Type or member is obsolete
return new CompressedData(Asn1Sequence.GetInstance(obj));
#pragma warning restore CS0618 // Type or member is obsolete
}
public static CompressedData GetInstance(Asn1TaggedObject ato, bool explicitly)
{
#pragma warning disable CS0618 // Type or member is obsolete
return new CompressedData(Asn1Sequence.GetInstance(ato, explicitly));
#pragma warning restore CS0618 // Type or member is obsolete
}
private DerInteger version;
private AlgorithmIdentifier compressionAlgorithm;
private ContentInfo encapContentInfo;
public CompressedData(
AlgorithmIdentifier compressionAlgorithm,
ContentInfo encapContentInfo)
{
this.version = DerInteger.Zero;
this.compressionAlgorithm = compressionAlgorithm;
this.encapContentInfo = encapContentInfo;
}
[Obsolete("Use 'GetInstance' instead")]
public CompressedData(
Asn1Sequence seq)
{
this.version = (DerInteger) seq[0];
this.compressionAlgorithm = AlgorithmIdentifier.GetInstance(seq[1]);
this.encapContentInfo = ContentInfo.GetInstance(seq[2]);
}
public DerInteger Version
{
get { return version; }
}
public AlgorithmIdentifier CompressionAlgorithmIdentifier
{
get { return compressionAlgorithm; }
}
public ContentInfo EncapContentInfo
{
get { return encapContentInfo; }
}
public override Asn1Object ToAsn1Object()
{
return new BerSequence(version, compressionAlgorithm, encapContentInfo);
}
}
}
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