Elliptic Curve Cryptography
MOVs Like Jagger - HTB Cyber Apocalypse CTF 2022
vulnerability: small embedding degree (allowing MOV attack)
starter ecc - CRYPTO CTF 2022
challenge: find y-coordinate over non-prime field
cookie lover reloaded - HackIM CTF 2022
vulnerability: small k used for signature
Secure Vault - WICSME CTF 2022
vulnerability: small k used for signature
Come on feel the nonce - CTFZone quals 2023
vulnerability: small nonces (relative to curve order)
Blocky Noncense - CSAW 2023
vulnerability: nonces determined by polynomial congruential generator
manykey - IrisCTF 2024
vulnerability: chosen generator and privkey
yaonet - DiceCTF 2024
vulnerability: corrupted OpenSSH key
budget bag - LA CTF 2024
vulnerability: elliptic cusp
Backdoor - IRON CTF 2024
vulnerability: elliptic node
Elliptic - GCC CTF 2024
vulnerability: chosen parameters
ECLCG - HITCON 2024
vulnerability: nonces related to lcg