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Android™

Add PFX Bytes as a Decryption Source

See more MIME Examples

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

AddPfxSourceBd registers PFX/P12 bytes held in a BinData as a source of certificates and private keys for later decryption.

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.

Background. This is the in-memory equivalent of AddPfxSourceFile, for cases where the PKCS #12 data is already loaded into a BinData rather than residing in a file.

Chilkat Android™ Downloads

Android™
// 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;
        }

    //  Add PFX/P12 bytes (from a BinData) as a source of certificates and private keys for later
    //  decryption.  The 1st argument is the BinData and the 2nd is the password (from a secure source).
    CkBinData bdPfx = new CkBinData();
    success = bdPfx.LoadFile("qa_data/recipient.pfx");
    if (success == false) {
        Log.i(TAG, bdPfx.lastErrorText());
        return;
        }

    String pfxPassword = "myPfxPassword";
    success = mime.AddPfxSourceBd(bdPfx,pfxPassword);
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    success = mime.Decrypt();
    if (success == false) {
        Log.i(TAG, mime.lastErrorText());
        return;
        }

    Log.i(TAG, "Decrypted.");

  }

  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."
  }
}