//==========================================================================
//Sample tlsserver using sslsockets
import java.io.*; 
import java.net.*; 
import java.security.*; 
import javax.net.ssl.*; 
public class tlsserver { 
// likely this port number is ok to use
    private static final int PORT = 8043; 
    public static void main (String[] args)  throws Exception { 
       //set necessary truststore properties - using JKS
       //System.setProperty("javax.net.ssl.trustStore","truststore.jks");
       //System.setProperty("javax.net.ssl.trustStorePassword","changeit"); 
       // set up key manager to do server authentication
       SSLContext context;
       KeyManagerFactory kmf;
       KeyStore ks;
 // First we need to load a keystore
       char[] passphrase = "123456".toCharArray();        
       ks = KeyStore.getInstance("JKS"); 
       ks.load(new FileInputStream("serverKeyStore.jks"), passphrase); 
// Initialize a KeyManagerFactory with the KeyStore
       kmf = KeyManagerFactory.getInstance("SunX509"); 
       kmf.init(ks, passphrase); 
// Create an SSLContext to run TLS and initialize it with KeyManagers from the KeyManagerFactory
       context = SSLContext.getInstance("TLS"); 
       KeyManager[] keyManagers = kmf.getKeyManagers(); 
       context.init(keyManagers, null, null); 
// First we need a SocketFactory that will create SSL server sockets.
       SSLServerSocketFactory ssf = context.getServerSocketFactory(); 
// Create socket and Wait for a connection
       ServerSocket ss = ssf.createServerSocket(PORT);        
//     Socket s = ss.accept(); 
       
// alterternative: needed to set SSL/TLS behaviour
       SSLSocket  s  =  (SSLSocket)ss.accept();

       
// Get the input stream. En/Decryption happens transparently.
       BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream()));
       
// Read through the input from the client and display it to the screen.
       String line = null; 
       while (((line = in.readLine())!= null)) { 
            System.out.println(line); 
       } 
       in.close(); 
       s.close(); 
      } 
}