(Android™) Convert CRL PEM to XML

Loads a CRL (Certificate Revocation List) from the PEM file format and converts to XML to allow for visual examination and parsing.

Note: This example 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);

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // This example requires Chilkat v9.5.0.77 or greater.
    CkPem pem = new CkPem();

    pem.put_VerboseLogging(true);
    boolean success = pem.LoadPemFile("qa_data/crl/sampleCrl.pem","password_not_used");
    if (success != true) {
        Log.i(TAG, pem.lastErrorText());
        return;
        }

    int numCrls = pem.get_NumCrls();
    int i = 0;

    CkAsn asn = new CkAsn();
    CkXml xml = new CkXml();
    while (i < numCrls) {

        // Get the CRL as base64 (multi-line)
        String crlBase64 = pem.getEncodedItem("crl","","base64_mime",i);
        if (pem.get_LastMethodSuccess() != true) {
            Log.i(TAG, pem.lastErrorText());
            return;
            }

        Log.i(TAG, crlBase64);

        success = asn.LoadEncoded(crlBase64,"base64");
        if (success != true) {
            Log.i(TAG, asn.lastErrorText());
            return;
            }

        // Convert ASN.1 to XML and load into xml and re-emit for pretty printing..
        xml.LoadXml(asn.asnToXml());
        Log.i(TAG, xml.getXml());

        // Use this online tool to generate parsing code from CRL XML: 
        // Generate Parsing Code from XML

        Log.i(TAG, "-------------------------------------");
        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."
  }
}