Prof. Dr. Ing. Ahmad-Reza Sadeghi

Professor - System Security Lab

Mornewegstrasse 32
D-64293 Darmstadt

Tel:+49 (0)6151 16 - 25328

ahmad.sadeghi(a-t)  PGP-Key  S/MIME Certificate




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


It's a TRAP: Table Randomization and Protection against Function Reuse Attacks

Author Stephen Crane, Stijn Volckaert, Felix Schuster, Christopher Liebchen, Per Larsen, Lucas Davi, Ahmad-Reza Sadeghi, Thorsten Holz, Bjorn De Sutter, Michael Franz
Date October 2015
Kind Inproceedings
Book title22nd ACM Conference on Computer and Communications Security (CCS)
Research Areas CASED, CROSSING, ICRI-SC, System Security Lab, Secure Things, Solutions, S2
Abstract Code-reuse attacks continue to evolve and remain a severe threat to modern software. Recent research has proposed a variety of defenses with differing security, efficiency, and practicality characteristics. Whereas the majority of these solutions focus on specific code-reuse attack variants such as return-oriented programming (ROP), other attack variants that reuse whole functions, such as the classic return-into-libc, have received much less attention. Mitigating function-level code reuse is highly challenging because one needs to distinguish a legitimate call to a function from an illegitimate one. In fact, the recent counterfeit object-oriented programming (COOP) attack demonstrated that the majority of code-reuse defenses can be bypassed by reusing dynamically bound functions, i.e., functions that are accessed through global offset tables and virtual function tables, respectively. In this paper, we first significantly improve and simplify the COOP attack. Based on a strong adversarial model, we then present the design and implementation of a comprehensive code-reuse defense which is resilient against reuse of dynamically-bound functions. In particular, we introduce two novel defense techniques: (i) a practical technique to randomize the layout of tables containing code pointers resilient to memory disclosure and (ii) booby trap insertion to mitigate the threat of brute-force attacks iterating over the randomized tables. Booby traps serve the dual purpose of preventing fault-analysis side channels and ensuring that each table has sufficiently many possible permutations. Our detailed evaluation demonstrates that our approach is secure, effective, and practical. We prevent realistic, COOP-style attacks against the Chromium web browser and report an average overhead of 1,1% on the SPEC CPU2006 benchmarks.
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