Ghaith Hammouri Erdinç Öztürk Berk Birand Berk Sunar Unclonable Lightweight Authentication Scheme. 33-48 2008 ICICS http://dx.doi.org/10.1007/978-3-540-88625-9_3 conf/icics/2008 db/conf/icics/icics2008.html#HammouriOBS08