Creating a secure channel

using System;
using System.Net;
using System.Net.Sockets;
using System.Security.Cryptography.X509Certificates;
using VSSProtocol.States;

namespace VSSProtocol.Users
{
	/// <summary>
	/// Listens for connections from VSSP network clients. 
	/// </summary>
	public class VsspServer
	{
		/// <summary>
		/// Listen on this port.
		/// </summary>
		private int port;
		/// <summary>
		/// The underline tcp server.
		/// </summary>
		private readonly TcpListener server;
		/// <summary>
		/// Certificate that server uses.
		/// </summary>
		private readonly X509Certificate2 serversCertificate;
		/// <summary>
		/// Initializes a new instance of the VsspServer class that listens on the specified port.
		/// </summary>
		/// <param name="port">Listen on this port.</param>
		/// <param name="serversCertificate">Certificate that server uses.</param>
		public VsspServer(int port, X509Certificate2 serversCertificate)
		{
			if (serversCertificate == null) throw new ArgumentNullException("serversCertificate");
			this.port = port;
			this.serversCertificate = serversCertificate;
			// Local host.
			IPAddress localAddr = IPAddress.Parse("127.0.0.1");
			server = new TcpListener(localAddr, port);
			// Start listening for client requests.
			server.Start();
		}
		/// <summary>
		/// Accepts a pending connection request 
		/// </summary>
		/// <returns>A VsspClient used to send and receive data. </returns>
		/// <exception cref="SocketException">Use the SocketException.ErrorCode property to obtain the specific 
		/// error code. When you have obtained this code, you can refer to the Windows Sockets version 2 API 
		/// error code documentation in MSDN for a detailed description of the error.</exception>
		public VsspClient Accept()
		{
			// Accept connection.
			TcpClient client = server.AcceptTcpClient();
			
			VsspManager manager = new VsspManager(client.GetStream(), new HelloServerState(serversCertificate));
			// Start handshake.
			manager.StartHandshake();
			// Return new client.
			return new VsspClient(client, manager,"no", 100 );
		}


		///<summary>
		///Closes the server.
		///</summary>
		///
		///<exception cref="T:System.Net.Sockets.SocketException">Use the <see cref="P:System.Net.Sockets.SocketException.ErrorCode"></see> property to obtain the specific error code. When you have obtained this code, you can refer to the Windows�Sockets version 2 API error code documentation in MSDN for a detailed description of the error. </exception><PermissionSet><IPermission class="System.Security.Permissions.EnvironmentPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" /><IPermission class="System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" /><IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Unrestricted="true" /></PermissionSet>
		public void Stop()
		{
			server.Stop();
		}
	}
}