Set the Decryption Certificate and Private Key

See more Email Object Examples

Demonstrates the Chilkat Email.SetDecryptCert2 method, which explicitly provides a certificate and its corresponding private key as separate objects for decrypting a received encrypted email. Set them before loading the encrypted message. This example loads a .cer certificate and a PEM private key, sets both, then loads an encrypted email.

// 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;

    //  Demonstrates the SetDecryptCert2 method, which explicitly provides a certificate and its
    //  corresponding private key (as separate objects) for decrypting a received encrypted
    //  email.  Set them before loading the encrypted email.

    CkEmail email = new CkEmail();

    //  Load the certificate (public) and the matching private key from separate files.
    CkCert cert = new CkCert();
    success = cert.LoadFromFile("qa_data/certs/recipient.cer");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return true;
        }

    CkPrivateKey privKey = new CkPrivateKey();
    success = privKey.LoadPemFile("qa_data/certs/recipient_privkey.pem");
    if (success == false) {
        Log.i(TAG, privKey.lastErrorText());
        return true;
        }

    //  Provide the certificate and private key to use for decryption.
    success = email.SetDecryptCert2(cert,privKey);
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    //  Load the encrypted email; Chilkat decrypts it using the certificate and key.
    success = email.LoadEml("qa_data/eml/encrypted.eml");
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    Log.i(TAG, "Decrypted = " + String.valueOf(email.get_Decrypted()));

    //  Note: Paths such as "qa_data/..." are relative local filesystem paths,
    //  relative to the current working directory of the running application.

  }

  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."
  }
}