(Android™) SSL Client Certificate

Demonstrates how to connect to an SSL server using a client-side certificate, send a simple message, receive a simple response, and disconnect.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkSocket socket = new CkSocket();

    // Create an instance of a certificate store object, load a PFX file,
    // locate the certificate we need, and use it for signing.
    // (a PFX file may contain more than one certificate.)
    CkCertStore certStore = new CkCertStore();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    boolean success = certStore.LoadPfxFile("chilkat_secret.pfx","secret");
    if (success != true) {
        Log.i(TAG, certStore.lastErrorText());
        return;
        }

    CkCert cert;
    cert = certStore.FindCertBySubjectCN("Chilkat Software, Inc.");
    if (certStore.get_LastMethodSuccess() == false) {
        Log.i(TAG, certStore.lastErrorText());
        return;
        }

    success = socket.SetSslClientCert(cert);

    boolean ssl = true;
    int maxWaitMillisec = 20000;

    // The SSL server hostname may be an IP address, a domain name,
    // or "localhost".  You'll need to change this:
    String sslServerHost;
    sslServerHost = "123.123.88.88";
    int sslServerPort = 8123;

    // Connect to the SSL server:
    success = socket.Connect(sslServerHost,sslServerPort,ssl,maxWaitMillisec);
    if (success != true) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    // Set maximum timeouts for reading an writing (in millisec)
    socket.put_MaxReadIdleMs(20000);
    socket.put_MaxSendIdleMs(20000);

    // Send a "Hello Server! -EOM-" message:
    success = socket.SendString("Hello Server! -EOM-");
    if (success != true) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    // The server (in this example) is going to send a "Hello Client! -EOM-" 
    // message.  Read it:
    String receivedMsg = socket.receiveUntilMatch("-EOM-");
    if (socket.get_LastMethodSuccess() != true) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = socket.Close(20000);

    Log.i(TAG, receivedMsg);

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}