Here's my dilema: I have explain before that I would like to keep HTML AND PHP code in a database to be eval'ed when a certain page is called. I've covered probably every imaginable security issues with the script itself, but I am concerned with my PHP code begin picked up/altered during transmission. So I use mcrypt, right?
Wrong. The problem is, I'm on a public server, with no mcrypt, and no hope of ever getting it. The first thing I tryed was to write my own encryption functions--not an easy task to do a good job with. I did a little online research and tried a few things, but a simple C# program I made easily cracked all of my encryption methods.
SO, I need advice on what to do--besides not implement the system mentioned above. How should I go about creating a really good encryption algorithm, or does anyone know one made in PHP that I could use for free? Thanks