Android™

Get Certificate Subject Part by Name or OID

Demonstrates the GetSubjectPart method where a name or OID can be passed. 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;

    CkCert cert = new CkCert();

    success = cert.LoadByCommonName("myCert");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    //  This example demonstrates getting the SERIALNUMBER part of the subject,
    //  if one such part exists in the cert's subject.
    //  Not too many certicates include the serial number in the Subject.
    //  (Chilean issued certificates for SII is one such case where the SERIALNUMBER part exists within the Subject.)
    String serialNum = cert.getSubjectPart("SERIALNUMBER");
    if (cert.get_LastMethodSuccess() == false) {
        Log.i(TAG, "No SERIALNUMBER part exists.");
        return;
        }

    Log.i(TAG, serialNum);

    //  We could also get the part by the OID.
    //  See https://oidref.com/2.5.4.5 for a list of OID's in the 2.5.4.* range..
    //  The OID for SERIALNUMBER is "2.5.4.5"
    serialNum = cert.getSubjectPart("2.5.4.5");
    if (cert.get_LastMethodSuccess() == false) {
        Log.i(TAG, "No SERIALNUMBER part exists.");
        return;
        }

    Log.i(TAG, serialNum);

  }

  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."
  }
}