Kleptographic Attacks on Elliptic Curve Cryptosystems
Elsayed Mohamed, Hassan M. A. Elkamchouchi · 2010
Summary This paper presents an approach to mount secretly embedded trapdoor with universal protection (SETUP) attacks on elliptic curve cryptosystems. The attacked cryptosystem used is the elliptic curve analog of ElGamal encryption. The attacker can obtain the user’s confidential message covertly. The cryptographic black-box devices with this hidden trapdoor behave exactly like an honest devices while actually leaking the confidential message to the attacker only.