**Full write-up:** https://www.sebven.com/ctf/2021/08/03/ImaginaryCTF2021-New-Technology.html
Cryptography – 300 pts (50 solves) – Chall author: Robin_Jadoul
This challenge is a prime example of why exploring (a local version of) the provided code can lead you to the flag, without at all understanding what is going on. I show you how I found the solution, I proof that it is indeed the solution, without touching any of the underlying math. Che… who needs number theory anyway?