Set the Decryption Certificate and Private Key

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Demonstrates the Chilkat MailMan.SetDecryptCert2 method, which explicitly specifies both the certificate and its associated private key, as separate objects, to use when decrypting S/MIME encrypted email. This example loads a .cer certificate and a PEM private key, registers both, and fetches a message Chilkat can decrypt.

// 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 MailMan.SetDecryptCert2 method, which explicitly specifies both the
    //  certificate and its associated private key (as separate objects) to use when decrypting
    //  S/MIME encrypted email.

    CkMailMan mailman = new CkMailMan();

    //  Configure the POP3 server connection.
    mailman.put_MailHost("pop.example.com");
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);
    mailman.put_PopUsername("user@example.com");
    mailman.put_PopPassword("myPassword");

    //  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;
        }

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

    //  Specify the certificate and private key to use when decrypting downloaded email.
    success = mailman.SetDecryptCert2(cert,privKey);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    //  Fetch a message; if it is encrypted, Chilkat decrypts it using the certificate and key.
    CkEmail email = new CkEmail();
    success = mailman.FetchOne(false,0,1,email);
    if (success == false) {
        Log.i(TAG, mailman.lastErrorText());
        return;
        }

    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.

    //  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    //  connects and authenticates -- using the property settings above -- whenever a server
    //  operation requires it.  Calling the explicit connect/authenticate methods can still be
    //  helpful to determine whether a failure occurs while connecting or while authenticating.

  }

  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."
  }
}