Crypto

Imaginary CTF is not your classical weekend CTF. Instead, they have been publishing fun challenges almost every day since April 2021 – pretty impressive. I’ve been solving some of their challenges here and there. This one, from last month, is especially fun. Also I wanted to try a jupyter notebook style write-up. Let me know if this helps comprehension or maybe is too much mixing of code and text. The challenge states:

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. Factory #Challenge description In the simplest terms, factory misco-graphy is the ratio of output to input! The challenge file is only one pdf. Opening the only shows the text “Real-World Misco-graphy”.