Sun SSL Socket Client : SSL Socket « Security « Java Tutorial

1. Java Tutorial
2. Security
3. SSL Socket

import java.io.*;
import java.net.*;
import java.security.*;

import javax.net.ssl.SSLSocketFactory;

import com.sun.net.ssl.SSLContext;
import com.sun.net.ssl.TrustManagerFactory;
import com.sun.net.ssl.TrustManager;

public class MainClass {

  private static final String HOST = "localhost";

  private static final int PORT = 8080;

  public static void main(String[] args) throws Exception {

    char[] passphrase = "sasquatch".toCharArray();
    KeyStore keystore = KeyStore.getInstance("JKS");
    keystore.load(new FileInputStream(".keystore"), passphrase);

    TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509");
    tmf.init(keystore);

    SSLContext context = SSLContext.getInstance("TLS");
    TrustManager[] trustManagers = tmf.getTrustManagers();

    context.init(null, trustManagers, null);

    SSLSocketFactory sf = context.getSocketFactory();

    Socket s = sf.createSocket(HOST, PORT);
    OutputStream out = s.getOutputStream();
    out.write("\nConnection established.\n\n".getBytes());

    int theCharacter = 0;
    theCharacter = System.in.read();
    while (theCharacter != '~') // The '~' is an escape character to exit
    {
      out.write(theCharacter);
      out.flush();
      theCharacter = System.in.read();
    }

    out.close();
    s.close();
  }
}