(Android™) Load Certificate from Smart Card by Common Name

See more Certificates Examples

This example requires Chilkat v9.5.0.87 or greater. It uses a Windows-only function named LoadFromSmartcard.

This example loads a certificate specified by its subject common name (CN part of the Subject). The LoadFromSmartcard method will examine the connected smart cards and USB tokens and will find and load the certificate having the specified CN.

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// 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.

    CkCert cert = new CkCert();

    // If you know the smart card PIN, set it prior to loading from the smartcard/USB token.
    cert.put_SmartCardPin("12345678");

    // To load the certificate specified by CN, pass the string "CN=<subjectCN>".  For example:
    boolean success = cert.LoadFromSmartcard("CN=Ch application signature (8c9be8e0-5544-4cd0-9062-290fbff353a7)");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        Log.i(TAG, "Certificate not loaded.");
        return;
        }

    Log.i(TAG, "Found: " + cert.subjectDN() + " serial=" + cert.serialNumber());

    // Here's another example:
    CkCert cert2 = new CkCert();
    success = cert2.LoadFromSmartcard("CN=yubikey rsa 1024 authentication");
    if (success == false) {
        Log.i(TAG, cert2.lastErrorText());
        Log.i(TAG, "Certificate not loaded.");
        return;
        }

    Log.i(TAG, "Found: " + cert2.subjectDN() + " serial=" + cert2.serialNumber());

  }

  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."
  }
}