$ ctf42

#state-recovery CTF challenges

5 CTF challenges using state-recovery from 4 CTFs (2021–2024), 5 with writeups.

Crypto · 5

Often combined with

#lfsr 2 #z3 2 #mt19937 2 #cows-and-bulls 1 #float-prediction 1 #untwist 1 #gf2-linear-system 1

Challenges

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Challenge CTF Weight Category Has
bivalves PlaidCTF 2023 100.00 Crypto files wu 2
twist_and_shout Zh3r0 2021 – Crypto files src wu 2
real_mersenne Zh3r0 2021 – Crypto files src wu 2
rps_casino DiceCTF 2024 Quals 54.40 Crypto files wu 2
Lockpicking DCTF 2021 – Crypto files wu 1