init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Asn1/DerNull.cs

@@ -0,0 +1,34 @@
+using System;
+
+namespace Org.BouncyCastle.Asn1;
+
+public class DerNull : Asn1Null
+{
+	public static readonly DerNull Instance = new DerNull(0);
+
+	private byte[] zeroBytes = new byte[0];
+
+	[Obsolete("Use static Instance object")]
+	public DerNull()
+	{
+	}
+
+	protected internal DerNull(int dummy)
+	{
+	}
+
+	internal override void Encode(DerOutputStream derOut)
+	{
+		derOut.WriteEncoded(5, zeroBytes);
+	}
+
+	protected override bool Asn1Equals(Asn1Object asn1Object)
+	{
+		return asn1Object is DerNull;
+	}
+
+	protected override int Asn1GetHashCode()
+	{
+		return -1;
+	}
+}