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43 lines
916 B

using System;
namespace Org.BouncyCastle.Asn1
{
/**
* A Null object.
*/
public class DerNull
: Asn1Null
{
public static readonly DerNull Instance = new DerNull();
private static readonly byte[] ZeroBytes = new byte[0];
protected internal DerNull()
{
}
[Obsolete]
#pragma warning disable CS0809 // 过时成员重写未过时成员
internal override int EncodedLength(bool withID)
#pragma warning restore CS0809 // 过时成员重写未过时成员
{
return Asn1OutputStream.GetLengthOfEncodingDL(withID, 0);
}
[Obsolete]
internal override void Encode(Asn1OutputStream asn1Out, bool withID)
{
asn1Out.WriteEncodingDL(withID, Asn1Tags.Null, ZeroBytes);
}
protected override bool Asn1Equals(Asn1Object asn1Object)
{
return asn1Object is DerNull;
}
protected override int Asn1GetHashCode()
{
return -1;
}
}
}