TlsProxy
Shows how to use TlsServerSocket class to write custom TLS proxy server.
Usage
This sample is a console application that provides TLS proxy server functionality. It listens on specified port for incoming TCP connections, secures them using TLS and forwards all communication between the connected client and the specified remote host. This makes it possible to add TLS 1.3/1.2/1.1/1.0 security to existing servers using plain (unencrypted) protocols
For example, to secure your HTTP service running at IP address 192.168.0.1, making it accessible via HTTPS protocol:
> TlsProxy 0.0.0.0:443 192.168.0.1:80 c:\data\cert.pfx password
C#
// start the server
var server = new TcpListener(IPAddress.Any, 1234);
server.Start();
// accept incoming connection
var inboundSocket = server.AcceptSocket();
// create an instance of TLS server socket
using (var socket = new TlsServerSocket(inboundSocket))
{
// log communication
socket.LogWriter = new ConsoleLogWriter(LogLevel.Info);
// specify certificate to be used for server authentication
socket.Parameters.Certificate = CertificateChain.LoadPfx(certPath, certPassword);
// negotiate TLS layer
socket.Negotiate();
// receive requests and send responses
byte[] buffer = new byte[8 * 1024];
// ... socket.Receive(buffer);
// ... socket.Send(buffer);
}
Also see Rebex TLS Proxy, our simple yet powerful TLS server with rich command-line interface.