$ ctf42

#keystream-recovery CTF challenges

4 CTF challenges using keystream-recovery from 4 CTFs (2022–2024), 4 with writeups.

Crypto · 4

Often combined with

#aes-ctr 1 #nonce-reuse 1 #permutation-bruteforce 1 #stream-cipher 1 #known-plaintext 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
TimeCapsule SekaiCTF 2022 24.86 Crypto files wu 3
Scrambled_Pizzeria TeamItaly 2023 24.88 Crypto files wu 1
my_array_generator DownUnderCTF 2024 68.04 Crypto files src wu 1
CryMePlx CyberSecurityRumble 2022 62.00 Crypto files wu 1