title: Save File Encryption in Bitcode
body: <p>I hope that title isn't misleading; part of the problem I'm having is I don't know how to ask the right questions. Anyway:  </p>
  
  <p>I have a program that saves its state into a file and then loads it later. Just some basic stuff, integers, doubles, maybe a string here and there. So far I've been using .txt files, but I want to move onto another format. I know I can save with just about any extension I want (.sav .dat .map etc.) but opening it up in notepad just has the text info as expected, which means the user can fiddle all they want.  </p>
  
  <p>What I want to do is take the data I'm saving and convert it to binary or bitcode or whatever it's called so notepad (or any other text editor) will just put out random characters, like so: -‡Wk]s9µî,¯k^û.</p>
  
  <p>I thought about rotating my characters before writing them out but that doesn't seem like it'll jumble it up as much as I want.</p>
  
  <p>As you can probably already tell, I don't really know the correct name for the concept I'm trying to implement here. Sorry if that all seemed a little rambly.</p>