title: how to encrypt the local form data on the device using ionic cordova app
body: <p>I have a cordova app which stores the offline forms on the device and once sync is done and app becomes online, all the data is send to the server.It is supporting both ios and android devices and in near future it will also support windows.I have googled it and found some plugins for the encryption like crypt-file.But could not find the proper documentation on how to use these and which one serves the purpose best.
  Any suggestion is highly appreciated.
  Thanks.</p>