I've had an account with GitHub for a while now. I think it's time I started doing something with it. First up is a small project I've been working on. It's a captcha based on image symmetry marking. I don't expect it to become very useful, as there are several key weaknesses in the idea. I'll cover them later if I get time. This project is intended as a proof of concept only, so don't expect any real security from it. It's barely functional at all, for the moment.
If you're interested, you can find it here.