$ ctf42

#crc32 CTF challenges

4 CTF challenges using crc32 from 4 CTFs (2020–2026), 3 with writeups. Mostly Crypto (25%) and Misc (25%).

Crypto · 1 Misc · 1 Pwn · 1 Reverse · 1

Often combined with

#rsa 1 #signature-forgery 1 #smart-contract 1 #wasm 1 #eosio 1 #custom-protocol 1 #use-after-free 1 #decoy-flag 1 #n64-rom 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
pekpek_stadium_64 Z0d1ak 2026 Quals 25.00 Reverse files wu 1
easy-modern-cryptocomputer LedgerDonjon 2020 – Misc files wu 1
Dead_Letter ASIS 2026 Quals 90.53 Pwn files wu 1
signer ImaginaryCTF 2023 34.52 Crypto files src