زمان مطالعه: 2دقیقه In this challenge, we have access to an img file.As usual for most forensic challenges, I’ll use binwalk with some extra options: This will recursively extract all known and unknown files inside the Img file: This will directly give us the second part of the flag: As shown in binwalk output, there is a KGB
زمان مطالعه: 3دقیقه Below is the writeup for a programming challenge in SuSec CTF 2020.The source code is given as follow: Basically all the operation is happening in idle_square funcion. In 40 rounds, the chosen x (which we have to find its value) will first get XOR-ed by a constant (pad) and then is powered by 2 in
