$ ctf42

#custom-cipher CTF challenges

3 CTF challenges using custom-cipher from 3 CTFs (2021–2024), 3 with writeups. Mostly Reverse (67%) and Crypto (33%).

Reverse · 2 Crypto · 1

Often combined with

#cpp-reversing 1 #chosen-plaintext 1

Challenges

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Challenge CTF Weight Category Has
Self-HostedCrypto
#custom-cipher
 HackPack 2022 35.11 Reverse files wu 1
rediary
#cpp-reversing#custom-cipher
 S4CTF 2021 24.52 Reverse files wu 1
Export_Grade_Cipher
#chosen-plaintext#custom-cipher
 UofTCTF 2024 23.90 Crypto files wu 1