Decrypt S/MIME using a PFX File

See more MIME Examples

Loads a CMS/PKCS #7 encrypted S/MIME message and decrypts it back to the original MIME content.

DecryptUsingPfxFile decrypts using the certificates and private keys contained in a PFX/P12 file, identified by path and password.

The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

// 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;

    CkMime mime = new CkMime();
    success = mime.LoadMimeFile("qa_data/encrypted.eml");
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    //  Decrypt using the certificates and private keys in a PFX/P12 file.  The 1st argument is the PFX
    //  path and the 2nd is its password (which should come from a secure source).
    String pfxPassword = "myPfxPassword";
    success = mime.DecryptUsingPfxFile("qa_data/recipient.pfx",pfxPassword);
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    String body = mime.getBodyDecoded();
    if (mime.get_LastMethodSuccess() == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    Log.i(TAG, body);

  }

  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."
  }
}