Georgios Portokalidis

I am an assistant professor at Stevens Institute of Technology. I obtained my doctorate degree from the Vrije Universiteit in Amsterdam. My research interests are mainly around the area of systems and network security. Currently my interests revolve around software hardening, faster and more usable security, improving software reliability and data privacy. You can find a complete CV here.

Our paper "Size Does Matter - Why Using Gadget-Chain Length to Prevent Code-reuse Attacks is Hard", is going to appear in the USENIX Security Symposium.

Our paper "Out Of Control: Overcoming Control-Flow Integrity" is going to appear in IEEE Symposium on Security and Privacy. Now available here!

Our paper "The Best of Both Worlds. A Framework for the Synergistic Operation of Host and Cloud Anomaly-based IDS for Smartphones" is going to appear in the 2014 European Workshop on System Security (EUROSEC). Now available here!

If you are an undergraduate or graduate student interested in doing some research, email me.

Selected Publications

Size Does Matter - Why Using Gadget-Chain Length to Prevent Code-reuse Attacks is Hard
Proceedings of the 23rd USENIX Security Symposium, San Diego, CA, USA, August 2014 (19.1%)

Out Of Control: Overcoming Control-Flow Integrity (pdf)
Proceedings of the 35th IEEE Symposium on Security and Privacy, San Jose, CA, USA, May 2014 (13.6%)

SAuth: Protecting User Accounts from Password Database Leaks (pdf)
Proceedings of the 20th ACM Conference on Computer and Communications Security, Berlin, Germany, November 2013 (19.8%)

ShadowReplica: Efficient Parallelization of Dynamic Data Flow Tracking (pdf)
Proceedings of the 20th ACM Conference on Computer and Communications Security, Berlin, Germany, November 2013 (19.8%)

Adaptive Defenses for Commodity Software through Virtual Application Partitioning (pdf)
Proceedings of the 19th ACM Conference on Computer and Communications Security (CCS), Raleigh, NC, USA, October 2012 (18.9%)

kGuard: Lightweight Kernel Protection against Return-to-user Attacks (pdf)
Proceedings of the 21st USENIX Security Symposium, Bellevue, WA, USA, August 2012 (19.4%)

A General Approach for Efficiently Accelerating Software-based Dynamic Data Flow Tracking on Commodity Hardware
Proceedings of the 19th Annual Network & Distributed System Security Symposium (NDSS) San Diego, CA, USA, February, 2012 (Acceptance rate: 17.8%)

Eudaemon: Involuntary and On-Demand Emulation Against Zero-Day Exploits (pdf)
Proceedings of the 3rd ACM SIGOPS/EuroSys European Conference on Computer Systems 2008, Glasgow, Scotland, April 2008 (18%)

Argos: an Emulator for Fingerprinting Zero-Day Attacks (pdf)
Proceedings of ACM SIGOPS EUROSYS 2006, Leuven, Belgium, April 2006 (20%)

Supervised students/researchers

Current PhD students

  • Qilang Yang (August 2013 - present)

Postdoctoral researchers

  • Dimitrios Damopoulos (September 2013 - present)

Some PhD students I am co-supervising

  • Kangkook Jee, Columbia University, (March 2010 - present)

Past PhD students

  • Angeliki Zavou, Columbia University, Co-supervised with Prof. Angelos D. Keromytis (April 2011 - May 2014)
  • Sambuddho Chakravarty, Columbia University, Co-supervised with Prof. Angelos D. Keromytis (March 2010 - December 2012)
  • Vasileios P. Kemerlis , Columbia University, Co-supervised with Prof. Angelos D. Keromytis (March 2010 - December 2012)

Grand and Awards

Co-PI, "MINESTRONE: Phase 3 Extension" IARPA, $313,437(September 2012 - November 2014)

Co-PI, "MINESTRONE Task: Automatic Discovery of Rescue Points Using Static and Dynamic Analysis", IARPA, $270,400 (September 2012 - November 2014)