title: How to safely store secret key?
body: <p>As I have developed my app using openFL which uses haxe, and I am about to start the activation part of my software, I wonder how would I safely store my encryption secret key? would I just hard code it into my app??!</p>
  
  <p>I will be using this key to encrypt data before sending to server, and I will be using it to de-encrypt data received from server too.</p>
  
  <p>Any one can recommend best practices followed in such case?</p>