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2022

2021

ASIS CTF 2021 Writeups

These are writeups for the first CTF I participated in during a weekend. Before that I only solved some picoctf and Google Beginners quest challenges after the events. I played with KITCTF the CTF team of the Karlsruhe Institute of Technology.

Wiederholungsfragen für Vertragsgestaltung am KIT

Antworten auf die Wiederholungsfragen der Vorlesung Vertragsgestaltung am KIT, die von Rechtsanwalt Stephan Leipert als Gastdozent gehalten wird. Schaut auch auf seinem YouTube-Kanal vorbei. Die Antworten stammen von mir und können Fehler enthalten. Falls solche auffallen sollten oder es andere Ergänzungen geben sollte, schreibt mir eine Mail an die Adresse im About. Die Antworten erscheinen mit einem Klick auf die Frage.

Always Visible Deadlines

To not get surprised by an upcoming deadline the day before, I like having them in sight regularly. The solution for me is to have in the upper right corner of my computer screen at all time. I am using Gnome, but this approach works for macOS. It is possible to develop for the Gnome shell directly, but this requires interaction with some complex and poorly documented APIs. For simply counting down numbers in the top bar this seems overkill. Luckily argos got me covered, and simplifies this task enormously. For macOS there is xbar, which is compatible to argos. Argos itself is a Gnome shell extension, for developing simple text display and shortcut applications, that live in the top bar. All I have to do for displaying text, is to create any type of executable, that prints to stdout. I opted for a python script, but shell scripts, C programs, or anything else works just as well. The script should calculate the time to the next deadlines, easy right, right!