Android™

Iterate over Certificates on Connected Smart Cards and USB Tokens

See more Cert Store Examples

Demonstrates how to iterate over the certificates on connected smart cards and USB tokens.

Note: Requires Chilkat v10.1.2 or later.

Android™

// 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;

    CkCertStore certStore = new CkCertStore();

    //  Detects connected smart cards and USB tokens
    //  and loads the certificate store object with the certificates found.
    //  Works on Windows, MacOS, iOS, and Linux.
    //  Note: If something is not detected, contact info@chilkatsoft.com
    //  for help or for workarounds.
    String argNotUsed = "";
    success = certStore.OpenSmartcard(argNotUsed);
    if (success == false) {
        Log.i(TAG, certStore.lastErrorText());
        return;
        }

    CkCert cert = new CkCert();

    int numCerts = certStore.get_NumCertificates();
    int i = 0;

    while (i < numCerts) {
        //  Load the cert object with the Nth certificate found in the connected HSMs
        certStore.GetCert(i,cert);
        Log.i(TAG, String.valueOf(i) + ": " + cert.subjectCN());
        i = i + 1;
        }


  }

  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."
  }
}