(Android™) Convert Certificate from DER to PEM.

Loads a digital certificate from any format, such as DER, and saves to PEM format.

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);

    CkCert cert = new CkCert();

    //  LoadFromFile will load virtually any certificate format file.
    //  It will auto-recognize the format and load appropiately.
    //  In this case, load a DER format certificate and convert to PEM.
    boolean success = cert.LoadFromFile("qa_data/certs/testCert.cer");
    if (success != true) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    success = cert.ExportCertPemFile("qa_data/certs/testCert.pem");
    if (success != true) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    Log.i(TAG, "Converted certificate from DER to PEM format.");

  }

  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."
  }
}