Professional Service

Associate Editor of IEEE/ACM Transactions on Networking (since 2005)
Research Demo Chair for Mobicom 2008
Member of Student Travel grant committee of WuWNet 2007.
Co-Chair and co-organizer with Mark Claypool (WPI) of NOSSDAV 2006
Co-chair and co-organizer with Mostafa Ammar of NGC 2002
Guest Editor with Clay Shields of Computer Communications Special Issue on Network Security
Guest Editor with Diot, Rizzo, and Towsley of JSAC Special Issue on Multicast
Tutorial co-chair for IEEE Infocom 2003
Student Travel Grant chair for ACM SIGCOMM 2000

Keynote Speaker at the 2006 Workshop on Networking in Public Transport
Tutorial speaker with Clay Shields on "Anonymous Communication Systems" at ACM Computers and Communications Security (CCS). October 2004
Tutorial speaker with Clay Shields at ACM Sigmetrics 2002 on Internet Privacy and Anonymity
Panelist at the 2004 workshop on Pervasive Security, Privacy and Trust
Lead Speaker in the Panel Session on Network Trustworthiness at the NSF ANIR PI Workshop (January 2003).
Panelist at IEEE ICNP 2001: "The end of the end-to-end argument?". Slides
Invited speaker for the MCast 2000. Slides.

Technical Program Committees: ACM Workshop on UnderWater Networks (WUWNet 2007); MobiOpp 2007; Privacy Enhancing Technologies workshop: PET 2003, PET 2004, PET 2005, PET 2006; ACM Intl Wkshp on Network and Operating System Support for Digital Audio and Video (NOSSDAV 2000, NOSSDAV 2007); ACM conference on Computer and Communication Security (CCS 2006; CCS 2008); IEEE Intl. Wrkshp on Intermittently Connected Mobile Ad hoc Networks ( ICMAN 2006); ACM Workshop on Large Scale Attack Defense (LSAD 2006); NetGames 2002, NetGames 2003, NetGames 2005; NetGames 2007 Infocom 2002, IEEE Infocom 2003, IEEE Infocom 2006; IEEE ICNP 2002, ICNP 2003; Global Internet 2001, Global Internet 2002, Global Internet 2004, IEEE Global Internet Symposium 2005; Intl Conference on COMmunication System softWAre and MiddlewaRE (COMSWARE); International Workshop on Security in Distributed Computing Systems (SDCS-2005); WWW 2003 Security and Privacy, WWW 2004 Security and Privacy track; Peer-to-peer area of the 24th International Conference On Distributed Computing Systems (ICDCS 2004); 2003 ACM Workshop on Security of Ad Hoc and Sensor Networks (SASN '03); 21st International Performance, Computing and Communications Conference (IPCCC 2002).International Workshop on Networked Group Communication: NGC'99, NGC 2000, NGC 2001, NGC 2002, NGC 2003.