MSc. Shaza Zeitouni

Research Assistant

Mornewegstraße 30
D-64293 Darmstadt
GERMANY

Building: S4|14
Room:4.1.09
Phone:+49 (0)6151 / 16 - 25321
Email:shaza.zeitouni(a-t)trust.cased.de
Website:http://trust.cased.de/people/shaza-zeitouni/

 

Vita

Since 2014

Research Assistant

at Intel Collaborative Research Institute for Secure Computing (ICRI-SC),

Center for Advanced Security Research Darmstadt (CASED)

and Technische Universität Darmstadt, Germany

2012-2014

M.Sc. CSE

at Technische Universität Braunschweig, Germany

2001-2006

B.Sc. Electrical Engineering

at Aleppo University, Syria

 

 

Publications

Remanence Decay Side-Channel: The PUF Case

Author Shaza Zeitouni, Yossef Oren, Christian Wachsmann, Patrick Koeberl, Ahmad-Reza Sadeghi
Date March 2016
Kind Article
JournalIEEE Transactions on Information Forensics and Security
ISSN1556-6013
DOITIFS.2015.2512534
KeyTUD-CS-2016-0008
Research Areas CASED, CROSSING, CYSEC, ICRI-SC, System Security Lab, P3
Abstract We present a side-channel attack based on remanence decay in volatile memory and show how it can be exploited effectively to launch a non-invasive cloning attack against SRAM PUFs — an important class of PUFs typically proposed as lightweight security primitives which use existing memory on the underlying device. We validate our approach using SRAM PUFs instantiated on two 65nm CMOS devices. We discuss countermeasures against our attack and propose the constructive use of remanence decay to improve the cloning-resistance of SRAM PUFs. Moreover, as a further contribution of independent interest, we show how to use our evaluation results to significantly improve the performance of the recently proposed TARDIS scheme, which is based on remanence decay in SRAM memory and used as a time-keeping mechanism for low-power clockless devices.
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