Get a Received Client Certificate (Server Side)

See more Socket/SSL/TLS Examples

Demonstrates Socket.GetRcvdClientCert, which copies a client certificate presented during the TLS handshake of an accepted server-side connection into a Cert object.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

// 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);

    boolean success = false;

    CkSocket socket = new CkSocket();

    //  The file path is relative to the application's current working directory.  An absolute path
    //  may also be used.  Supply the path appropriate to your own environment.
    //  The PFX password should come from a secure source rather than being hard-coded.
    String pfxPassword = "myPfxPassword";
    CkCert cert = new CkCert();
    success = cert.LoadPfxFile("qa_data/server.pfx",pfxPassword);
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    success = socket.InitSslServer(cert);
    if (success == false) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    success = socket.BindAndListen(5000,25);
    if (success == false) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    //  Accept a client connection.  The accepted connection carries any client certificate presented
    //  during the TLS handshake.
    CkSocket connectedSock = new CkSocket();
    success = socket.AcceptNext(20000,connectedSock);
    if (success == false) {
        Log.i(TAG, socket.lastErrorText());
        return;
        }

    //  Copy each received client certificate and inspect it.
    int numClientCerts = connectedSock.get_NumReceivedClientCerts();
    CkCert clientCert = new CkCert();
    int i;
    for (i = 0; i <= numClientCerts - 1; i++) {
        success = connectedSock.GetRcvdClientCert(i,clientCert);
        if (success == false) {
            Log.i(TAG, connectedSock.lastErrorText());
            return;
            }

        Log.i(TAG, "Client certificate subject: " + clientCert.subjectCN());
        }


  }

  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."
  }
}