$ ctf42

#quadratic-residue CTF challenges

3 CTF challenges using quadratic-residue from 3 CTFs (2021), 3 with writeups.

Crypto · 3

Often combined with

#discrete-log 1 #elgamal 1 #legendre-symbol 1

Challenges

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Challenge CTF Weight Category Has
silver-water-industries Hack.lu 2021 94.48 Crypto files wu 3
janken_vs_yoshiking zer0pts 2021 24.56 Crypto files wu 2
dividing_secrets corCTF 2021 24.92 Crypto files wu 2