Challenges | hackattic

Proving you've done your work.

Just your basic byte reading. A good warm-up exercise.

Generate an SSL certificate according to given data.

Lucky day! You get to be the registry.

A short trip that ought to clear up some misconceptions.

... followed by the pound sign.

Hunt for faces in a bunch of tiles.

Extract some data from Redis. In a way.

Basic arithmetic and – quite literally – reading numbers.

Send a few requests from a few different places.

Talk to a WebSocket server until it reveals a password.

A rather short fling with colliding MD5.

We want to talk to your git server.

Handle some incoming JWTs for us.

Those damn squares. They're everywhere.

Who hasn't forgotten a ZIP password?

Set up a DNS server according to a specification.

Restore a database dump and extract some data.