Adding Obsolete attribute on the properties of ITlsHandshakeFeature.

Author: ladeak

src/CHttpServer/CHttpServer/HttpsConnectionMiddleware.cs

@@ -252,17 +252,23 @@ public X509Certificate2? ClientCertificate
     // Required for TLS Handshake feature
 
     public TlsCipherSuite? NegotiatedCipherSuite => _sslStream.NegotiatedCipherSuite;
-
+    
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public CipherAlgorithmType CipherAlgorithm => _sslStream.CipherAlgorithm;
 
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public int CipherStrength => _sslStream.CipherStrength;
 
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public HashAlgorithmType HashAlgorithm => _sslStream.HashAlgorithm;
 
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public int HashStrength => _sslStream.HashStrength;
 
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public ExchangeAlgorithmType KeyExchangeAlgorithm => _sslStream.KeyExchangeAlgorithm;
 
+    [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
     public int KeyExchangeStrength => _sslStream.KeyExchangeStrength;
 
     public Task<X509Certificate2?> GetClientCertificateAsync(CancellationToken cancellationToken)

tests/CHttpServer.Tests/TestBase.cs

@@ -116,14 +116,17 @@ internal class TestTls : ITlsHandshakeFeature
     {
         public SslProtocols Protocol => SslProtocols.Tls12;
 
+        [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
         public CipherAlgorithmType CipherAlgorithm => throw new NotImplementedException();
 
         public int CipherStrength => throw new NotImplementedException();
 
+        [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
         public HashAlgorithmType HashAlgorithm => throw new NotImplementedException();
 
         public int HashStrength => throw new NotImplementedException();
 
+        [Obsolete("Obsolete by BCL, use NegotiatedCipherSuite instead.")]
         public ExchangeAlgorithmType KeyExchangeAlgorithm => throw new NotImplementedException();
 
         public int KeyExchangeStrength => throw new NotImplementedException();