Cryptography doesn't just keep our data safe and let us do useful things like internet banking. It's also got some really interesting history, a lot of strange stories, and it's frankly cool as hell (especially if you're Not Normal about maths). Join us for a tour of some of these weird and wonderful corners of cryptography.

We'll start with the stuff you might have seen before, but we'll also show off some things you probably haven't. Live coding, maths and (let's be real) probably some really unhinged tangents: is there a better way to spend an hour of your DevFest?

Starring Rendle (you all know them already) and Eli (the one with the purple hair).