From cb95a628410139fda33662feeb4ba4385cbe3eac Mon Sep 17 00:00:00 2001
From: Ricardo Olsen <olsen.ricardo@gmail.com>
Date: Thu, 26 Sep 2024 11:05:36 -0300
Subject: [PATCH] Update lib60870 lib code to allow for TLS 1.2/1.3 connections
 to the IEC104 Server driver.

---
 .../lib60870.netcore/lib60870/CS104/ClientConnection.cs         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib60870.netcore/lib60870.netcore/lib60870/CS104/ClientConnection.cs b/src/lib60870.netcore/lib60870.netcore/lib60870/CS104/ClientConnection.cs
index 6ff71193..41c00b35 100644
--- a/src/lib60870.netcore/lib60870.netcore/lib60870/CS104/ClientConnection.cs
+++ b/src/lib60870.netcore/lib60870.netcore/lib60870/CS104/ClientConnection.cs
@@ -1252,7 +1252,7 @@ private void HandleConnection()
 
                         try
                         {
-                            sslStream.AuthenticateAsServer(tlsSecInfo.OwnCertificate, true, System.Security.Authentication.SslProtocols.Tls, false);
+                            sslStream.AuthenticateAsServer(tlsSecInfo.OwnCertificate, true, System.Security.Authentication.SslProtocols.Tls12 | System.Security.Authentication.SslProtocols.Tls13, false);
 						
                             if (sslStream.IsAuthenticated == true)
                             {