init commit

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

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+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Crypto.Signers;
+
+namespace Org.BouncyCastle.Crypto.Tls;
+
+public class TlsECDsaSigner : TlsDsaSigner
+{
+	protected override byte SignatureAlgorithm => 3;
+
+	public override bool IsValidPublicKey(AsymmetricKeyParameter publicKey)
+	{
+		return publicKey is ECPublicKeyParameters;
+	}
+
+	protected override IDsa CreateDsaImpl(byte hashAlgorithm)
+	{
+		return new ECDsaSigner(new HMacDsaKCalculator(TlsUtilities.CreateHash(hashAlgorithm)));
+	}
+}