init commit

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

@@ -0,0 +1,122 @@
+using Org.BouncyCastle.Crypto.Agreement;
+using Org.BouncyCastle.Crypto.Parameters;
+
+namespace Org.BouncyCastle.Crypto.Tls;
+
+public abstract class DefaultTlsServer : AbstractTlsServer
+{
+	public DefaultTlsServer()
+	{
+	}
+
+	public DefaultTlsServer(TlsCipherFactory cipherFactory)
+		: base(cipherFactory)
+	{
+	}
+
+	protected virtual TlsSignerCredentials GetDsaSignerCredentials()
+	{
+		throw new TlsFatalAlert(80);
+	}
+
+	protected virtual TlsSignerCredentials GetECDsaSignerCredentials()
+	{
+		throw new TlsFatalAlert(80);
+	}
+
+	protected virtual TlsEncryptionCredentials GetRsaEncryptionCredentials()
+	{
+		throw new TlsFatalAlert(80);
+	}
+
+	protected virtual TlsSignerCredentials GetRsaSignerCredentials()
+	{
+		throw new TlsFatalAlert(80);
+	}
+
+	protected virtual DHParameters GetDHParameters()
+	{
+		return DHStandardGroups.rfc7919_ffdhe2048;
+	}
+
+	protected override int[] GetCipherSuites()
+	{
+		return new int[18]
+		{
+			49200, 49199, 49192, 49191, 49172, 49171, 159, 158, 107, 103,
+			57, 51, 157, 156, 61, 60, 53, 47
+		};
+	}
+
+	public override TlsCredentials GetCredentials()
+	{
+		switch (TlsUtilities.GetKeyExchangeAlgorithm(mSelectedCipherSuite))
+		{
+		case 3:
+			return GetDsaSignerCredentials();
+		case 11:
+		case 20:
+			return null;
+		case 17:
+			return GetECDsaSignerCredentials();
+		case 5:
+		case 19:
+			return GetRsaSignerCredentials();
+		case 1:
+			return GetRsaEncryptionCredentials();
+		default:
+			throw new TlsFatalAlert(80);
+		}
+	}
+
+	public override TlsKeyExchange GetKeyExchange()
+	{
+		int keyExchangeAlgorithm = TlsUtilities.GetKeyExchangeAlgorithm(mSelectedCipherSuite);
+		switch (keyExchangeAlgorithm)
+		{
+		case 7:
+		case 9:
+		case 11:
+			return CreateDHKeyExchange(keyExchangeAlgorithm);
+		case 3:
+		case 5:
+			return CreateDheKeyExchange(keyExchangeAlgorithm);
+		case 16:
+		case 18:
+		case 20:
+			return CreateECDHKeyExchange(keyExchangeAlgorithm);
+		case 17:
+		case 19:
+			return CreateECDheKeyExchange(keyExchangeAlgorithm);
+		case 1:
+			return CreateRsaKeyExchange();
+		default:
+			throw new TlsFatalAlert(80);
+		}
+	}
+
+	protected virtual TlsKeyExchange CreateDHKeyExchange(int keyExchange)
+	{
+		return new TlsDHKeyExchange(keyExchange, mSupportedSignatureAlgorithms, null, GetDHParameters());
+	}
+
+	protected virtual TlsKeyExchange CreateDheKeyExchange(int keyExchange)
+	{
+		return new TlsDheKeyExchange(keyExchange, mSupportedSignatureAlgorithms, null, GetDHParameters());
+	}
+
+	protected virtual TlsKeyExchange CreateECDHKeyExchange(int keyExchange)
+	{
+		return new TlsECDHKeyExchange(keyExchange, mSupportedSignatureAlgorithms, mNamedCurves, mClientECPointFormats, mServerECPointFormats);
+	}
+
+	protected virtual TlsKeyExchange CreateECDheKeyExchange(int keyExchange)
+	{
+		return new TlsECDheKeyExchange(keyExchange, mSupportedSignatureAlgorithms, mNamedCurves, mClientECPointFormats, mServerECPointFormats);
+	}
+
+	protected virtual TlsKeyExchange CreateRsaKeyExchange()
+	{
+		return new TlsRsaKeyExchange(mSupportedSignatureAlgorithms);
+	}
+}