Prof. Dr. Ing. Ahmad-Reza Sadeghi

Professor - System Security Lab

Mornewegstrasse 32
D-64293 Darmstadt
GERMANY

Room:4.1.06
Tel:+49 (0)6151 16 - 25328
Email:

ahmad.sadeghi(a-t)trust.tu-darmstadt.de  PGP-Key  S/MIME Certificate

Website:http://​trust.​tu-darmstadt.​de

 

 

Short CV

Ahmad-Reza Sadeghi is a full Professor of Computer Science at the Technische Universität Darmstadt, in Germany, where he heads the System Security Lab.  Since January 2012 he is also the Director of Intel Collaborative Research Institute for Secure Computing (ICRI-SC) at TU Darmstadt. He is a member of the profile area CYSEC of TU Darmstadt.

He received his PhD in Computer Science with the focus on privacy protecting cryptographic protocols and systems from the University of Saarland in Saarbrücken, Germany. Prior to academia, he worked in Research and Development of Telecommunications enterprises, amongst others Ericson Telecommunications.  He has been leading and involved in a variety of national and international research and development projects on design and implementation of Trustworthy Computing Platforms and Trusted Computing, Security Hardware, and Applied Cryptography. He has been serving as general or program chair as well as program committee member of major conferences and workshops in Information Security and Privacy. He is Editor-In-Chief of IEEE Security and Privacy Magazine, and on the editorial board of ACM Books. He served 5 years on the editorial board of the ACM Transactions on Information and System Security (TISSEC), and was guest editor of the IEEE Transactions on Computer-Aided Design (Special Issue on Hardware Security and Trust).

Prof. Sadeghi has been awarded with the renowned German prize “Karl Heinz Beckurts” for his research on Trusted and Trustworthy Computing technology and its transfer to industrial practice. The award honors excellent scientific achievements with high impact on industrial innovations in Germany. Further, his group received German IT Security Competition Award 2010. 

 

Book: Towards Hardware-Intrinsic Security 

"This book will prove to be very interesting for professionals in the hardware security field. It covers almost every aspect of this area, with excellent papers written by experts."

Javier Castillo, ACM Computing Reviews, June 2011

Academic Activities

 

ACM Books, Area Editor (Security and Privacy)

General Chair

  • ACM Conference on Computer and Communications Security (ACM CCS) 2013
  • International Conference on Trust and Trustworthy Computing (TRUST) 2010

Program (Co-) Chair

  • Financial Cryptography and Data Security (FC) 2013
  • ACM Conference on Security and Privacy in Wireless and Mobile Networks (WiSec) 2013
  • International Conference on Cryptology and Network Security (CANS) 2012
  • International Workshop on Trustworthy Embedded Devices (TrustED) 2012
  • SecureCloud 2012
  • ACM Workshop on Digital Rights Management (ACM DRM) 2011
  • ACM Workshop on Scalable Trusted Computing (ACM STC) 2011
  • International Conference on Trust and Trustworthy Computing (TRUST) 2011

Program Committee

  • IEEE Workshop on Mobile Security Technologies (MoST), co-located with IEEE S&P, 2013
  • IEEE Symposium on Security & Privacy (IEEE S&P) 2013
  • ACM Conference on Computer and Communications Security (ACM CCS) 2012
  • Network & Distributed System Security Symposium (NDSS) 2013, 2012
  • ACM Conference on Security and Privacy in Wireless and Mobile Networks (ACM WiSec) 2012
  • European Symposium on Research in Computer Security (ESORICS) 2013, 2012, 2011
  • ACM Symposium on Information, Computer and Communications Security (AsiaCCS) 2013, 2012
  • ACM Conference on Data and Application Security and Privacy (CODASPY) 2013
  • ACM CCS Workshop on Security and Privacy in Smartphones and Mobile Devices (ACM SPSM) 2012
  • ACM Cloud Computing Security Workshop (ACM CCSW) 2012
  • Workshop on RFID Security and Privacy (RFIDSec) 2012
  • Conference on Privacy, Security and Trust (PST) 2012
  • ACM SIGHIT International Health Informatics Symposium (IHI) 2012
  • IEEE International Workshop on Information Forensics and Security (WIFS) 2012
  • IEEE Symposium on Hardware-Oriented Security and Trust (HOST) 2012, 2009
  • Information Hiding Conference (IH) 2012, 2011
  • International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM) 2012, 2011
  • International Multidisciplinary Privacy Award (CPDP MPA) 2012, 2011
  • Smart Card Research and Advanced Application Conference (CARDIS) 2012
  • Financial Cryptography and Data Security (FC) 2011, 2006, 2005
  • Workshop on Cryptographic Hardware and Embedded Systems (CHES) 2011, 2005
  • International Conference on Applied Cryptography and Network Security (ACNS) 2011, 2010
  • International Conference on Information Security and Cryptology (ISISC) 2011
  • Computer & Electronics Security Applications Rendez-vous (C&ESAR) 2011
  • International Conference on Network and System Security (NSS) 2011
  • International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom) 2011
  • International Conference on Trusted Systems (INTRUST) 2011, 2010, 2009
  • International Workshop on Trustworthy Embedded Devices (TrustED) 2011
  • Workshop on Lightweight Security & Privacy: Devices, Protocols, and Applications (LightSec) 2011
  • Workshop on Real-Life Cryptographic Protocols and Standardization (RLCPS) 2011, 2010
  • Workshop on Secure Data Management (SDM) 2011
  • International Conference on E-voting and Identity (VoteID) 2009
  • ACM Workshop on Scalable Trusted Computing (ACM STC) 2008, 2006
  • Benelux Workshop on Information and System Security 2006
  • International Conference on Cryptology in India (INDOCRYPT) 2006
  • International Workshop on Digital Watermarking (IWDW) 2006
  • International Workshop on Information Security Applications (WISA) 2006
  • Workshop on Advances in Trusted Computing (WATC) 2006
  • ACM Workshop on Digital Rights Management (ACM DRM) 2005, 2004, 2003
  • Information Security and Hiding (ISH) 2005
  • New Security Paradigm Workshop (NSPW) 2005, 2004
  • SKOLIS Conference on Information Security and Cryptography (CISC) 2005
  • European Workshop on Security in Ad-Hoc and Sensor Networks (ESAS) 2004

Publications

DR.SGX: Hardening SGX Enclaves against Cache Attacks with Data Location Randomization

Author Ferdinand Brasser, Srdjan Capkun, Alexandra Dmitrienko, Tommaso Frassetto, Kari Kostiainen, Urs Müller, Ahmad-Reza Sadeghi
Date September 2017
Kind Techreport
KeyTUD-CS-2017-0255
Research Areas System Security Lab
Abstract Recent research has demonstrated that Intel's SGX is vulnerable to various software-based side-channel attacks. In particular, attacks that monitor CPU caches shared between the victim enclave and untrusted software enable accurate leakage of secret enclave data. Known defenses assume developer assistance, require hardware changes, impose high overhead, or prevent only some of the known attacks. In this paper we propose data location randomization as a novel defensive approach to address the threat of side-channel attacks. Our main goal is to break the link between the cache observations by the privileged adversary and the actual data accesses by the victim. We design and implement a compiler-based tool called DR.SGX that instruments enclave code such that data locations are permuted at the granularity of cache lines. We realize the permutation with the CPU's cryptographic hardware-acceleration units providing secure randomization. To prevent correlation of repeated memory accesses we continuously re-randomize all enclave data during execution. Our solution effectively protects many (but not all) enclaves from cache attacks and provides a complementary enclave hardening technique that is especially useful against unpredictable information leakage.
Website https://arxiv.org/abs/1709.09917
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