$ ctf42

#sidh CTF challenges

3 CTF challenges using sidh from 3 CTFs (2020–2022), 3 with writeups.

Crypto · 3

Often combined with

#adaptive-key-recovery 1 #static-key-reuse 1 #castryck-decru 1 #torsion-point 1 #torsion-point-attack 1 #isogeny 1

Challenges

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Challenge CTF Weight Category Has
sidhe
#sidh#adaptive-key-recovery#static-key-reuse
 PlaidCTF 2020 93.15 Crypto files wu 3
why_is_a_raven
#isogeny#sidh#torsion-point-attack
 Union 2021 24.34 Crypto files wu 2
S2DH
#sidh#castryck-decru#torsion-point
 RCTF 2022 – Crypto files wu 1