Set the Signing Certificate for an Email

See more Email Object Examples

Demonstrates the Chilkat Email.SetSigningCert method, which sets the certificate (with access to its private key) used to create a digital signature when sending signed email. This example loads the signing certificate from a PFX, sets it, and enables signed sending.

// 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 SetSigningCert method, which sets the certificate (with access to its
    //  private key) used for creating a digital signature when sending signed email.

    CkEmail email = new CkEmail();
    email.put_Subject("Signed email");
    email.put_Body("This message will be sent with a digital signature.");
    email.put_From("alice@example.com");
    email.AddTo("Bob","bob@example.com");

    //  Load a signing certificate together with its private key from a PFX file.
    CkCert cert = new CkCert();
    success = cert.LoadPfxFile("qa_data/certs/signer.pfx","pfx_password");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return true;
        }

    //  Set the certificate used to create the signature.
    success = email.SetSigningCert(cert);
    if (success == false) {
        Log.i(TAG, email.lastErrorText());
        return true;
        }

    //  Request that the email be sent with a digital signature.
    email.put_SendSigned(true);

    Log.i(TAG, "Signing certificate set.");

    //  Note: The path "qa_data/certs/signer.pfx" is a relative local filesystem path,
    //  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."
  }
}