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SQL Injection

Cryptography

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Design

Games Engineering

Mar 15, 2023

Implement your own Neural Network in Go from the ground up!

Jul 25, 2021

DoHoTor (DNS over HTTPS over TOR) is an extremely easily deployable DNS server that provides ultimate anonymity.

Apr 25, 2019

Encryption should not be left to amateurs. This CTF challenge showcases this with a proprietary encryption method that is easy to break.

Dec 5, 2018

In this CTF challenge, I disassemble the server binary of a chat application. I uncover a critical race condition and demonstrate its exploitation.

Dec 1, 2018

In 2018 I developed a computer game. Players have to balance their body on a moving platform and try to counter various computer virus attacks.

Jul 25, 2018

Be careful when handling user input! The bad things that happen when you do not follow this advice are shown with this CTF challenge.

Oct 2, 2015

In 2015 I designed the cover page of a lighting magazine.