These are puzzles i wrote for a ctf competition that was happening during the 20th SFI IT Academic Festival. You can try solving them yourself, for fun.
I'm only posting ones written by me, as i'm sure about the copyright situation with them (it's cc0, maybe outside of png which contains a drawing i did not draw).
I'm also attaching a flag validator. If you solve a task, or have any questions, or just want to talk
feel free to contact me on kpm plus clonk at krzysckh dot org or write to me directly
on clonks' irc server, or even ping me on #cyberspace (nick: krzysckh) ;)
This page requires javascript to be enabled. If you don't want to do that, browse the code to find download links for the required files ¯\_(ツ)_/¯.
the flag format is: sfi20_ctf{...}
The list of tasks, with increasing difficulity:
:3