$ ctf42

#chained-xor CTF challenges

1 CTF challenge using chained-xor from 1 CTF (2026), 1 with writeups.

Crypto · 1

Often combined with

#cipher-feedback 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
XORDECRYPT BlueHens 2026 44.77 Crypto files wu 1