$ ctf42

#book-cipher CTF challenges

1 CTF challenge using book-cipher from 1 CTF (2024), 1 with writeups.

Crypto · 1

Often combined with

#encoding-decoding 1

Challenges

Filter and sort these in the challenge browser →

Challenge CTF Weight Category Has
the_receiver_of_many SpringForwardCTF 2024 22.40 Crypto files wu 1