$ ctf42

#repeating-key-xor CTF challenges

4 CTF challenges using repeating-key-xor from 4 CTFs (2021–2024), 4 with writeups.

Crypto · 4

Often combined with

#xortool 2

Challenges

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Challenge CTF Weight Category Has
repeat UofTCTF 2024 23.90 Crypto files wu 3
h4XOR HeroCTF 2021 35.17 Crypto files wu 3
Cowsay PatriotCTF 2022 24.52 Crypto files src wu 1
OTP1 BlueHens 2021 22.62 Crypto files wu 1