init commit

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

@@ -0,0 +1,69 @@
+using System.Collections;
+
+namespace Org.BouncyCastle.Asn1;
+
+internal class LazyDerSequence : DerSequence
+{
+	private byte[] encoded;
+
+	public override Asn1Encodable this[int index]
+	{
+		get
+		{
+			Parse();
+			return base[index];
+		}
+	}
+
+	public override int Count
+	{
+		get
+		{
+			Parse();
+			return base.Count;
+		}
+	}
+
+	internal LazyDerSequence(byte[] encoded)
+	{
+		this.encoded = encoded;
+	}
+
+	private void Parse()
+	{
+		lock (this)
+		{
+			if (encoded != null)
+			{
+				Asn1InputStream asn1InputStream = new LazyAsn1InputStream(encoded);
+				Asn1Object obj;
+				while ((obj = asn1InputStream.ReadObject()) != null)
+				{
+					AddObject(obj);
+				}
+				encoded = null;
+			}
+		}
+	}
+
+	public override IEnumerator GetEnumerator()
+	{
+		Parse();
+		return base.GetEnumerator();
+	}
+
+	internal override void Encode(DerOutputStream derOut)
+	{
+		lock (this)
+		{
+			if (encoded == null)
+			{
+				base.Encode(derOut);
+			}
+			else
+			{
+				derOut.WriteEncoded(48, encoded);
+			}
+		}
+	}
+}