init commit

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

@@ -0,0 +1,75 @@
+using System;
+using System.Collections;
+using System.IO;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1;
+
+public class DerSequence : Asn1Sequence
+{
+	public static readonly DerSequence Empty = new DerSequence();
+
+	public static DerSequence FromVector(Asn1EncodableVector v)
+	{
+		if (v.Count >= 1)
+		{
+			return new DerSequence(v);
+		}
+		return Empty;
+	}
+
+	public DerSequence()
+		: base(0)
+	{
+	}
+
+	public DerSequence(Asn1Encodable obj)
+		: base(1)
+	{
+		AddObject(obj);
+	}
+
+	public DerSequence(params Asn1Encodable[] v)
+		: base(v.Length)
+	{
+		foreach (Asn1Encodable obj in v)
+		{
+			AddObject(obj);
+		}
+	}
+
+	public DerSequence(Asn1EncodableVector v)
+		: base(v.Count)
+	{
+		foreach (Asn1Encodable item in v)
+		{
+			AddObject(item);
+		}
+	}
+
+	internal override void Encode(DerOutputStream derOut)
+	{
+		MemoryStream memoryStream = new MemoryStream();
+		DerOutputStream derOutputStream = new DerOutputStream(memoryStream);
+		IEnumerator enumerator = GetEnumerator();
+		try
+		{
+			while (enumerator.MoveNext())
+			{
+				Asn1Encodable obj = (Asn1Encodable)enumerator.Current;
+				derOutputStream.WriteObject(obj);
+			}
+		}
+		finally
+		{
+			IDisposable disposable = enumerator as IDisposable;
+			if (disposable != null)
+			{
+				disposable.Dispose();
+			}
+		}
+		Platform.Dispose(derOutputStream);
+		byte[] bytes = memoryStream.ToArray();
+		derOut.WriteEncoded(48, bytes);
+	}
+}