Java by API/javax.net.ssl/SSLSocketFactory

ServerSocketFactory: createServerSocket(int arg0)

   <source lang="java">

import java.io.IOException; import javax.net.ssl.SSLServerSocket; import javax.net.ssl.SSLServerSocketFactory; import javax.net.ssl.SSLSocket; public class MainClass {

 public static void main(String[] args) {
   int port = Integer.parseInt(args[0]);
   try {
     System.out.println("Locating server socket factory for SSL...");
     SSLServerSocketFactory factory = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();
     System.out.println("Creating a server socket on port " + port);
     SSLServerSocket serverSocket = (SSLServerSocket) factory.createServerSocket(port);
     String[] suites = serverSocket.getSupportedCipherSuites();
     System.out.println("Support cipher suites are:");
     for (int i = 0; i < suites.length; i++) {
       System.out.println(suites[i]);
     }
     serverSocket.setEnabledCipherSuites(suites);
     System.out.println("Support protocols are:");
     String[] protocols = serverSocket.getSupportedProtocols();
     for (int i = 0; i < protocols.length; i++) {
       System.out.println(protocols[i]);
     }
     System.out.println("Waiting for client...");
     SSLSocket socket = (SSLSocket) serverSocket.accept();
     System.out.println("Starting handshake...");
     socket.startHandshake();
     System.out.println("Just connected to " + socket.getRemoteSocketAddress());
   } catch (IOException e) {
     e.printStackTrace();
   }
 }

}

      </source>
   
  
 
  

SSLSocketFactory: createSocket(String arg0, int arg1)

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.security.Principal; import java.security.cert.X509Certificate; import javax.net.ssl.SSLPeerUnverifiedException; import javax.net.ssl.SSLSession; import javax.net.ssl.SSLSocket; import javax.net.ssl.SSLSocketFactory; public class MainClass {

 public static void main(String[] args) throws Exception {
   SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
   String hostName = "hostName";
   String fileName = "fileName";
   SSLSocket sslsock = (SSLSocket) factory.createSocket(hostName, 443);
   SSLSession session = sslsock.getSession();
   X509Certificate cert;
   try {
     cert = (X509Certificate) session.getPeerCertificates()[0];
   } catch (SSLPeerUnverifiedException e) {
     System.err.println(session.getPeerHost() + " did not present a valid certificate.");
     return;
   }
   System.out.println(session.getPeerHost() + " has presented a certificate belonging to:");
   Principal p = cert.getSubjectDN();
   System.out.println("\t[" + p.getName() + "]");
   System.out.println("The certificate bears the valid signature of:");
   System.out.println("\t[" + cert.getIssuerDN().getName() + "]");
   System.out.print("Do you trust this certificate (y/n)? ");
   System.out.flush();
   BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
   if (Character.toLowerCase(console.readLine().charAt(0)) != "y")
     return;
   PrintWriter out = new PrintWriter(sslsock.getOutputStream());
   out.print("GET " + fileName + " HTTP/1.0\r\n\r\n");
   out.flush();
   BufferedReader in = new BufferedReader(new InputStreamReader(sslsock.getInputStream()));
   String line;
   while ((line = in.readLine()) != null)
     System.out.println(line);
   sslsock.close();
 }

}

      </source>
   
  
 
  

SSLSocketFactory: getDefault()

   <source lang="java">

import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.security.Principal; import java.security.cert.X509Certificate; import javax.net.ssl.SSLPeerUnverifiedException; import javax.net.ssl.SSLSession; import javax.net.ssl.SSLSocket; import javax.net.ssl.SSLSocketFactory; public class MainClass {

 public static void main(String[] args) throws Exception {
   SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
   String hostName = "hostName";
   String fileName = "fileName";
   SSLSocket sslsock = (SSLSocket) factory.createSocket(hostName, 443);
   SSLSession session = sslsock.getSession();
   X509Certificate cert;
   try {
     cert = (X509Certificate) session.getPeerCertificates()[0];
   } catch (SSLPeerUnverifiedException e) {
     System.err.println(session.getPeerHost() + " did not present a valid certificate.");
     return;
   }
   System.out.println(session.getPeerHost() + " has presented a certificate belonging to:");
   Principal p = cert.getSubjectDN();
   System.out.println("\t[" + p.getName() + "]");
   System.out.println("The certificate bears the valid signature of:");
   System.out.println("\t[" + cert.getIssuerDN().getName() + "]");
   System.out.print("Do you trust this certificate (y/n)? ");
   System.out.flush();
   BufferedReader console = new BufferedReader(new InputStreamReader(System.in));
   if (Character.toLowerCase(console.readLine().charAt(0)) != "y")
     return;
   PrintWriter out = new PrintWriter(sslsock.getOutputStream());
   out.print("GET " + fileName + " HTTP/1.0\r\n\r\n");
   out.flush();
   BufferedReader in = new BufferedReader(new InputStreamReader(sslsock.getInputStream()));
   String line;
   while ((line = in.readLine()) != null)
     System.out.println(line);
   sslsock.close();
 }

}

      </source>