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I love to make little games. But this time something seems to be different. If you win you might even get a flag...

Besides the netmsg application itself, you also managed to get your hands on a packet capture of one of the users of the service. Don't ask. Try your hand at cracking the strong encryption used to ...

You managed to got your hands on a secure commandline messaging application used by some suspicious people, along with the username/password `delta_star` / `whiskey_demon`. Reportedly, there is som...

Need to convert a file? Our kittens have got you covered!

A few months ago, I came across this website. Inspired by it, I decided to recreate the service in C to self-host it. To avoid any exploitable vulnerabilities, I decided to use a very strict seccom...

I am developing a game with websockets in python. I left my pc to a java fan, I think he really messed up. It is forbidden to perform or attempt to perform any action against the infrastructure or...

Here are API endpoints for a blog website.

Who needs prepared statements and parameterized queries when you can use the amazing new QueryBuilder™ and its built-in DirtyString™ sanitizer?

Complete this simple math test to get the flag.