$ ctf42

#elgamal CTF challenges

2 CTF challenges using elgamal from 2 CTFs (2021–2023), 2 with writeups.

Crypto · 2

Often combined with

#malleability 1 #quadratic-residue 1 #legendre-symbol 1

Challenges

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Challenge CTF Weight Category Has
janken_vs_yoshiking zer0pts 2021 24.56 Crypto files wu 2
Morphing_Time UIUCTF 2023 – Crypto files src wu 2