init commit

output/Libraries/BouncyCastle.Crypto/Org/BouncyCastle/Crypto/Tls/DigitallySigned.cs

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+using System;
+using System.IO;
+
+namespace Org.BouncyCastle.Crypto.Tls;
+
+public class DigitallySigned
+{
+	protected readonly SignatureAndHashAlgorithm mAlgorithm;
+
+	protected readonly byte[] mSignature;
+
+	public virtual SignatureAndHashAlgorithm Algorithm => mAlgorithm;
+
+	public virtual byte[] Signature => mSignature;
+
+	public DigitallySigned(SignatureAndHashAlgorithm algorithm, byte[] signature)
+	{
+		if (signature == null)
+		{
+			throw new ArgumentNullException("signature");
+		}
+		mAlgorithm = algorithm;
+		mSignature = signature;
+	}
+
+	public virtual void Encode(Stream output)
+	{
+		if (mAlgorithm != null)
+		{
+			mAlgorithm.Encode(output);
+		}
+		TlsUtilities.WriteOpaque16(mSignature, output);
+	}
+
+	public static DigitallySigned Parse(TlsContext context, Stream input)
+	{
+		SignatureAndHashAlgorithm algorithm = null;
+		if (TlsUtilities.IsTlsV12(context))
+		{
+			algorithm = SignatureAndHashAlgorithm.Parse(input);
+		}
+		byte[] signature = TlsUtilities.ReadOpaque16(input);
+		return new DigitallySigned(algorithm, signature);
+	}
+}