(Android™) Validate a Smartcard PIN

Validates a smartcard PIN. This example only runs on Windows and requires Chilkat v9.5.0.77 or greater.

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);

    // Note: Requires Chilkat v9.5.0.77 or greater.

    CkCert cert = new CkCert();

    cert.put_SmartCardPin("000000");

    // Load the certificate on the smartcard currently in the reader (or on the USB token).
    // Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
    // See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
    boolean success = cert.LoadFromSmartcard("");
    if (success != true) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    // Check to see if the SmartCardPin property contains the valid PIN for the smartcard.
    int pinValid = cert.CheckSmartCardPin();
    if (pinValid < 0) {
        Log.i(TAG, "Unable to check the PIN validity.");
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    if (pinValid == 1) {
        Log.i(TAG, "PIN is valid.");
        }
    else {
        Log.i(TAG, "PIN is invalid.");
        }


  }

  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."
  }
}