Rotten Secured Algorithm is the only challenge that I have written for Firebird Intro CTF. Two people (out of 166) ended up solving the challenge. There is a Python script attached in the challenge, as well as the output file. Let's see what's going on in the Python: # Challenge written on Aug 26, 2020 by Mystiz. from Crypto.PublicKey import RSA import random import time from datetime import datetime from secret import flag t = int(time.