$ ctf42

#visual-cryptography CTF challenges

2 CTF challenges using visual-cryptography from 2 CTFs (2021–2023), 2 with writeups.

Crypto · 2

Often combined with

#image-subtraction 1

Challenges

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Challenge CTF Weight Category Has
Warmup
#visual-cryptography
 TMUCTF 2021 – Crypto files wu 3
TheSecretImage
#visual-cryptography#image-subtraction
 VishwaCTF 2023 22.69 Crypto files wu 1