angel@cs.columbia.edu

♦ Columbia University, Fu Foundation School of Engineering & Applied Science, New York, NY.
PhD candidate in Computer Science
Advisor: Prof. Angelos Keromytis (expected June 2007).

♦ Columbia University, Fu Foundation School of Engineering & Applied Science, New York, NY.
M.Phil. Degree in Computer Science (January 2007)
MSc Degree in Electrical Engineering with concentration in Multimedia Netwoking (Peer to Peer Networks).
(December 2002).

♦ National University of Athens, Athens Greece /Carleton University ON, Canada.
MSc Degree in Algorithms, Computability and Logi. (June 2001)
Master’s Thesis: “A new distributed algorithm for routing in satellite constellation networks”
Advisor: Prof. E. Kranakis, SCS, Carleton University.

♦ University of Patras, Electrical Engineering Department, Patras Greece.
Certificate of Engineering for the completion of the last two years of coursework in Electrical Engineering
(February 1999).

♦ University of Patras – Physics Department, Patras, Greece.
BS in Physics, (July 1997) Thesis: “Stream Ciphers theory and practical applications”.

PUBLICATIONS

1. Data Sanitization: Improving the Forensic Utility of Anomaly Detection Systems
   Gabriela F. Cretu, Angelos Stavrou, Salvatore J. Stolfo, Angelos D. Keromytis.
   To appear in the Proceedings of the 3rd Workshop on Hot Topics in System Dependability (HotDep).
   June 2007, Edinburgh, UK.
   
   
2. A Study of Malcode-Bearing Documents
   Weijen Li, Salvatore Stolfo, Angelos Stavrou, Elli Androulaki, and Angelos D. Keromytis.
   To appear in the Proceedings of the 4th GI International Conference on Detection
   of Intrusions & Malware, and Vulnerability Assessment (DIMVA). July 2007, Lucerne, Switzerland.
   
   
3. From STEM to SEAD: Speculative Execution for Automated Defense.
   Michael E. Locasto, Angelos Stavrou, Gabriela F. Cretu, and Angelos D. Keromytis.
   To appear in Proceedings of the USENIX Annual Technical Conference (USENIX 2007),
   June 2007, Santa Clara, CA. An earlier draft of this work is available
   as Columbia University CS Tech Report CUCS-004-07 (Acceptance rate: 18.75%)
   
   
4. Network Security as a Composable Service
   Stelios Sidiroglou, Angelos Stavrou, and Angelos D. Keromytis. To appear in the Proceedings of the
   IEEE Sarnoff Symposium. May 2007, Princeton, NJ. (Invited paper)
   
   
5. Bridging the Network Reservation Gap Using Overlays
   Angelos Stavrou, David Turner, Angelos D. Keromytis, and Vassilis Prevelakis.
   In the Proceedings of the 1st Workshop on Information Assurance for Middleware Communications (IAMCOM).
   January 2007, Bangalore, India. [pdf] ps]
   
   
6. Countering DDoS Attacks with Multi-path Overlay Networks
   Angelos Stavrou and Angelos D. Keromytis. In Information Assurance Technology Analysis Center (IATAC)
   Information Assurance Newsletter (IAnewsletter), vol. 9, no. 3, pp. 26 - 30, Winter 2006.
   (Invited paper, based on the CCS 2005 paper.) [pdf])
   
   
7. Dark Application Communities
   Michael E. Locasto, Angelos Stavrou, and Angelos D. Keromytis.
   In Proceedings of the 15th New Security Paradigms Workshop (NSPW 2006) .
   September 2006, Schloss Dagstuhl, Germany. [ pdf ] [ ps ]
   
   
8. W3Bcrypt: Encryption as a Stylesheet
   Angelos Stavrou, Michael E. Locasto, and Angelos D. Keromytis.
   In Proceedings of the 4th International Conference on Applied Cryptography and Network Security (ACNS), pp. 349-364,
   June 6-9, 2006, Singapore. [ pdf(305KB) ] [ ps (1.2MB) ]
   Also available as Columbia University Computer Science Department Technical Report CUCS-003-06.
   
   
9. Countering DoS Attacks With Stateless Multipath Overlays
   Angelos Stavrou and Angelos D. Keromytis.
   In Proceedings of the 12th ACM Conference on Computer and Communications Security (CCS) , pp. 249 - 259.
   November 2005, Alexandria, VA. (Acceptance rate: 15.2%) [ pdf (500KB) ] [ ps (1.9MB) ].
   
   
10. gore: Routing-Assisted Defense Against DDoS Attacks
    Stephen T. Chou, Angelos Stavrou, John Ioannidis, and Angelos D. Keromytis. |
    In Proceedings of the 8th Information Security Conference (ISC) , pp. 179 - 193.
    September 2005, Singapore. (Acceptance rate: 14%) [ pdf (5.4MB) ] [ pdf image compressed (251KB) ] [ ps (1MB) ].
    
    
11. WebSOS: An Overlay-based System For Protecting Web Servers From Denial of Service Attacks
    Angelos Stavrou, Debra L. Cook, William G. Morein, Angelos D. Keromytis, Vishal Misra, and Dan Rubenstein.
    In Elsevier Journal of Computer Networks , special issue on Web and Network Security, vol. 48, no. 5, pp. 781 - 807.
    August 2005. [ pdf (255KB) ] [ ps (1.4MB) ].
    
12. MOVE: An End-to-End Solution To Network Denial of Service
    Angelos Stavrou, Angelos D. Keromytis, Jason Nieh, Vishal Misra, and Dan Rubenstein.
    In Proceedings of the Internet Society (ISOC) Symposium on Network and Distributed Systems Security (SNDSS) , pp. 81 - 96.
    February 2005, San Diego, CA. (Acceptance rate: 12.9%). [ pdf (3.9MB) ] [ ps (1.2MB) ].
    
    
13. Content distribution for seamless transmission
    Edward G. Coffman Jr., Andreas Constantinides, Dan Rubenstein, Bruce Shepherd, Angelos Stavrou.
    In SIGMETRICS Performance Evaluation Review 32(2): 31-32 (2004) [ pdf (936 KB)].
    
    
14. A Pay-per-Use DoS Protection Mechanism For The Web
    Angelos Stavrou, John Ioannidis, Angelos D. Keromytis, Vishal Misra, and Dan Rubenstein.
    In Proceedings of the Applied Cryptography and Network Security (ACNS) Conference.
    June 2004, Yellow Mountain, China. LNCS Volume 3089/2004, pp. 120-134, ISBN: 3-540-22217-0
    [ pdf (195KB) ] [ ps (1.2M) ].
    
    
15. A Lightweight, Robust, P2P System to Handle Flash Crowds
    Angelos Stavrou, Dan Rubenstein, Sambit Sahu.
    IEEE Journal on Selected Areas in Communications (JSAC) , special issue on Service Overlay Networks,
    Volume 22, Number 1, January 2004. [ pdf 226KB ] [ ps 421KB ].
    
    
16. Using Graphic Turing Tests to Counter Automated DDoS Attacks Against Web Servers
    William G. Morein, Angelos Stavrou, Debra L. Cook, Angelos D. Keromytis, Vishal Misra, Dan Rubenstein.
    In Proceedings of the 10th ACM International Conference on Computer and Communications Security (CCS) ,
    Washington, DC, October 2003.[ pdf (225K) ] [ ps (884K) ] [ ps.gz (421K) ] .
    
    
17. A Lightweight, Robust P2P System to Handle Flash Crowds
    Angelos Stavrou, Dan Rubenstein and Sambit Sahu.
    In Proceedings of IEEE ICNP 2002, Paris, France, November, 2002.
    [ Proceedings Version pdf (143K) ][ Proceedings Version ps (252K) ] [ Proceedings Version ps.gz (65K) ]
    An earlier version is available as Columbia Technical Report EE020321-1, February, 2002.
    [ Tech Report ps (508K) ] [ Tech Report ps.gz (109K) ] [ Tech Report pdf (242K) ].

Technical Reports

• A Model for Automatically Repairing Execution Integrity
Michael Locasto, Gabriela F. Cretu, Angelos Stavrou, Angelos D. Keromytis.
Columbia University Computer Science Department Technical Report CUCS-005-07, Jan 2007.

• LinkWidth: A Method to measure Link Capacity and Available Bandwidth using Single-End Probes
Sambuddho Chakravarty, Angelos Stavrou, Angelos D. Keromytis.
Tech Report CUCS-050-06. Department of Computer Science, Columbia University. Dec 2006.

• Quantifying Application Behavior Space for Detection and Self-Healing
Michael E. Locasto, Angelos Stavrou, Gabriela F. Cretu, Angelos D. Keromytis and Salvatore J. Stolfo.
Tech Report CUCS-017-06. Department of Computer Science, Columbia University. April 2006.

• Exploiting the Structure in DHT Overlays for DoS Protection
Angelos Stavrou, Angelos D. Keromytis, and Dan Rubenstein.
Columbia University Computer Science Department Technical Report CUCS-019-04, May 2004.

Master Thesis

 

• Routing in Satellite Networks,
Fall 2001, Msc Thesis (in Greek) [ Thesis in ps (7MB) ] [ Thesis in ps.gz(2.1MB) ][ Thesis in pdf (960K) ].

ACTIVITIES & SERVICE

Program Committee: 16th USENIX Security 2007

Web Master: Sigmetrics-Performance 2004

INTERNSHIPS

Microsoft Research Cambridge , UK, Summer 2006. Work on improving the worm filters for the Vigilante Project.
Hosts: Manuel Costa and Miguel Castro.
GOOGLE INC Summer and Fall 2004. Working with security group on various protection mechanisms.
Host: Niels Provos.
International Computer Science Institute ( ICSI, Berkeley, CA, USA) Summer 2002.
Design and Implementation of a Tool to estimate the TCP Loss Events and RTT of individual TCP flows using
Passive analysis of raw TCP packets obtained from tcpdump software package.
Hosts at ICIR: Eddie Kohler, Sally Floyd.

TEACHING EXPERIENCE

Instructor:

Fall 2005:     COMS W4995-1 (Special Topics) Networking Laboratory (23 students)