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News: I will be joining the School of Informatics at Indiana University Bloomington as an Assistant Professor in the Fall!
Research interests
Accountable Anonymity,
Anonymizing networks,
Privacy policies,
Usable security ("HCISec"),
Network Security,
Security and privacy in pervasive and mobile computing,
Security and privacy in peer-to-peer networking,
Applied cryptography
Program Committees
PETS '09: Seattle, USA, Aug 5–7.
IEEE PASSAT '09: Vancouver, Canada, Aug 29–31.
DPM '09: Saint Malo, France, Sep 24–25. Submission deadline Jun 28, 2009.
ACM CCS '09: Chicago, USA, Nov 9–13.
Privacy on the Web @ ACM SAC '10: Sierre, Switzerland, Mar 22–26, 2010. Submission deadline Sep 8, 2009.
2008: PETS, WPES, SUTC
2007: WPES, SECOVAL, TSPUC
2006: ICCCN
Refereed Journal Articles
- Annette C. Feng, Apu C. Kapadia, Wu-chun Feng, and Geneva G. Belford,
"Packet Spacing: An Enabling Mechanism for Delivering Multimedia Content in Computational Grids,"
The Journal of Supercomputing (JSC),
23(1):51–66 (August 2002)
(bibtex)(springer)
- Patrick P. Tsang, Apu Kapadia, Cory Cornelius, and Sean W. Smith,
"Nymble: Blocking Misbehaving Users in Anonymizing Networks,"
IEEE Transactions on Dependable and Secure Computing (TDSC)
(Accepted for publication)
Journal Articles under Review
- Apu Kapadia, Tristan Henderson, David Kotz, and Jeffrey J. Fielding,
"Virtual Walls: Usable Privacy Policies for Pervasive Environments,"
Submitted to the Journal of Pervasive and Mobile Computing (PMC)
- Patrick P. Tsang, Man Ho Au, Apu Kapadia and Sean W. Smith,
"BLAC: Revoking Repeatedly Misbehaving Anonymous Users Without Relying on TTPs,"
Submitted to ACM Transactions on Information and System Security (TISSEC)
- Cory Cornelius, Apu Kapadia, David Kotz, Dan Peebles, Minho Shin and Nikos Triandopoulos,
"AnonySense: Privacy-Aware People-Centric Sensing,"
Submitted to the Journal of Pervasive and Mobile Computing (PMC)
Refereed Conference and Workshop Papers
- Katelin Bailey, Apu Kapadia, Linden Vongsathorn, and Sean W. Smith,
"TwoKind Authentication: Protecting Private Information in Untrustworthy Environments,"
In Proceedings of The Seventh ACM Workshop on Privacy in the Electronic Society (WPES '08),
pp. 39–43, Alexandria, VA, October 27, 2008.
(bibtex)(acm)(extended version)
- Patrick P. Tsang, Man Ho Au, Apu Kapadia, and Sean W. Smith,
"PEREA: Towards Practical TTP-Free Revocation in Anonymous Authentication,"
In Proceedings of The 15th ACM Conference on Computer and Communication Security (CCS '08),
pp. 333–344, Alexandria, VA, October 27–31, 2008.
(bibtex)(acm)
- Cory Cornelius, Apu Kapadia, David Kotz, Dan Peebles, Minho Shin and Nikos Triandopoulos,
"AnonySense: Privacy-Aware People-Centric Sensing,"
In Proceedings of The 6th ACM/USENIX International Conference on Mobile Systems, Applications, and Services (MOBISYS '08),
pp. 211–224, Breckenridge, Colorado, June 17–20, 2008.
(bibtex)(acm)
- Apu Kapadia, Nikos Triandopoulos, Cory Cornelius, Daniel Peebles, and David Kotz,
"AnonySense: Opportunistic and Privacy-Preserving Context Collection,"
In Proceedings of The Sixth International Conference on Pervasive Computing (PERVASIVE '08),
pp. 280–297, Sydney, Australia, May 19–22, 2008.
(bibtex)(springer)
- Apu Kapadia and Nikos Triandopoulos,
"Halo: High-Assurance Locate for Distributed Hash Tables,"
In Proceedings of the 15th Annual Network & Distributed System Security Symposium (NDSS '08),
pp. 61–79, San Diego, CA, February 10–13, 2008.
(bibtex)(isoc)
- (This paper describes BLAC)
Patrick P. Tsang, Man Ho Au, Apu Kapadia, and Sean W. Smith,
"Blacklistable Anonymous Credentials: Blocking Misbehaving Users without TTPs,"
In Proceedings of the 14th ACM Conference on Computer and Communication Security (CCS '07),
pp. 72–81, Alexandria, VA, October 29–November 2, 2007.
(bibtex)(acm)(original extended version)(new journal submission)
- Peter C. Johnson, Apu Kapadia, Patrick P. Tsang, and Sean W. Smith,
"Nymble: Anonymous IP-Address Blocking,"
In Proceedings of the Seventh International Symposium on Privacy Enhancing Technologies (PET '07),
pp. 113–133, Ottawa, Canada, June 20–22, 2007. © Springer-Verlag, LNCS 4776.
Nymble Project Homepage
(bibtex)(springer)
- Apu Kapadia, Prasad Naldurg, and Roy H. Campbell,
"Distributed Enforcement of Unlinkability Policies: Looking Beyond the Chinese Wall,"
In Proceedings of the Eighth IEEE Workshop on Policies for Distributed Systems and Networks (POLICY '07),
pp. 141–150, Bologna, Italy, June 13–15, 2007.
(bibtex)(ieee)
- Apu Kapadia, Tristan Henderson, Jeffrey J. Fielding, and David Kotz,
"Virtual Walls: Protecting Digital Privacy in Pervasive Environments,"
In Proceedings of The Fifth International Conference on Pervasive Computing (PERVASIVE '07),
pp. 162–179, Toronto, Canada, May 13–16, 2007. © Springer-Verlag, LNCS 4480.
Honorable Mention Award (Runner-up for Best Paper)
(bibtex)(springer)
- (This paper describes PEAPOD)
Apu Kapadia, Patrick P. Tsang and Sean W. Smith,
"Attribute-Based Publishing with Hidden Credentials and Hidden Policies,"
In Proceedings of The 14th Annual Network & Distributed System Security Symposium (NDSS '07),
pp. 179–192, San Diego, CA, February 28–March 2, 2007.
(bibtex)(isoc)
- Apu Kapadia, Geetanjali Sampemane, and Roy H. Campbell,
"KNOW Why Your Access Was Denied: Regulating Feedback for Usable Security,"
In Proceedings of The 11th ACM Conference on Computer and Communications Security (CCS '04),
pp. 52–61, Washington DC, October 25–29, 2004.
(bibtex)(acm)
- Apu Kapadia, Prasad Naldurg, and Roy H. Campbell,
"Routing with Confidence: Supporting Discretionary Routing Requirements in Policy Based Networks,"
In Proceedings of IEEE 5th International Workshop on Policies for Distributed Systems and Networks (POLICY '04),
pp. 45–54, Yorktown Heights, New York, June 7–9, 2004.
(bibtex)(ieee)
- Wu-chun Feng, Apu Kapadia, and Sunil Thulasidasan,
"GREEN: Proactive Queue Management over a Best-Effort Network,"
In Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '02),
21(1):1784–1788, Taipei, Taiwan, November 17–21, 2002.
(bibtex)(ieee) (ns-2 code)
- Jalal Al-Muhtadi, Roy Campbell, Apu Kapadia, Dennis Mickunas, and Seung Yi,
"Routing Through the Mist: Privacy Preserving Communication in Ubiquitous Computing Environments,"
In Proceedings of The 22nd IEEE International Conference on Distributed Computing Systems (ICDCS '02),
pp. 74–83, Vienna, Austria, July 2–5, 2002.
(bibtex)(ieee)
- Apu Kapadia, Annette Feng, and Wu-chun Feng,
"The Effects of Inter-Packet Spacing on the Delivery of Multimedia Content,"
In Proceedings of The 21st IEEE International Conference on Distributed Computing Systems (ICDCS '01),
pp. 665–672, Phoenix, Arizona, April 16–19, 2001.
(bibtex)(ieee)
- Apu Kapadia, Jalal Al-Muhtadi, Roy H. Campbell, and Dennis Mickunas,
"I-RBAC 2000: Secure Interoperability Using Dynamic Role Translation,"
In Proceedings of The 1st International Conference on Internet Computing (IC '00),
pp. 231–238, Las Vegas, Nevada, June 26–29, 2000.
(bibtex)
Invited Conference Papers
Refereed Poster Abstracts and Work-in-Progress Papers
- Fabeah Adu-Oppong, Casey K. Gardiner, Apu Kapadia, and Patrick P. Tsang,
"Social Circles: Tackling Privacy in Social Networks (Poster Abstract),"
In Proceedings of the Fourth Symposium on Usable Privacy and Security (SOUPS '08),
Pittsburgh, Pennsylvania, July 23–25, 2008.
(bibtex)(soups)
- Minho Shin, Cory Cornelius, Daniel Peebles, Apu Kapadia, Patrick Tsang and David Kotz,
"SenseRight: Reliable People-centric Sensing with Unreliable Participants (Poster Abstract),"
The 6th ACM/USENIX International Conference on Mobile Systems, Applications, and Services (MOBISYS '08),
Breckenridge, Colorado, June 17–20, 2008.
(bibtex)
- Katelin Bailey, Linden Vongsathorn, Apu Kapadia, Chris Masone, Sean W. Smith,
"TwoKind Authentication: Usable Authenticators for Untrustworthy Environments (Poster Abstract),"
In Proceedings of the Third Symposium on Usable Privacy and Security (SOUPS '07),
pp. 169–170, Pittsburgh, Pennsylvania, July 18–20, 2007.
(Subsumed by our WPES '08 paper)
(bibtex)(acm)
- Patrick P. Tsang, Apu Kapadia, and Sean W. Smith,
"Anonymous IP-Address Blocking in Tor with Trusted Computing (Work in Progress),"
The Second Workshop on Advances in Trusted Computing (WATC '06),
Tokyo, Japan, November 30–December 1, 2006.
(Subsumed by our PET '07 paper)
- Raquel Hill, Jalal Al-Muhtadi, Roy H. Campbell, Apu Kapadia, Prasad Naldurg, Anand Ranganathan,
"A Middleware Architecture for Securing Ubiquitous Computing Cyber Infrastructures (Work in Progress),"
ACM/IFIP/USENIX 5'th International Middleware Conference (MIDDLEWARE '04),
Toronto, Canada, October 18th–22nd, 2004.
Appears in IEEE Distributed Systems Online, 5(9), September 2004.
(bibtex)(ieee)
Invited Magazine Articles
Theses
Technical Reports
- Patrick P. Tsang, Apu Kapadia, Cory Cornelius, and Sean W. Smith,
"Nymble: Blocking Misbehaving Users in Anonymizing Networks,"
Dartmouth Computer Science Technical Report 2008-637, December 2008.
(Significantly updates our PET '07 paper)
(bibtex)
- Patrick P. Tsang, Man Ho Au, Apu Kapadia and Sean W. Smith,
"BLAC: Revoking Repeatedly Misbehaving Anonymous Users Without Relying on TTPs,"
Dartmouth Computer Science Technical Report 2008-635, October 2008.
(Significantly updates our CCS '07 paper)
(bibtex)
- Katelin Bailey, Apu Kapadia, Linden Vongsathorn, and Sean W. Smith,
"TwoKind Authentication: Protecting Private Information in Untrustworthy Environments (Extended Version),"
Dartmouth Computer Science Technical Report TR2008-632, August 2008.
(Extended version of our WPES '08 paper)
(bibtex)
- Patrick P. Tsang, Man Ho Au, Apu Kapadia, and Sean W. Smith,
"Blacklistable Anonymous Credentials: Blocking Misbehaving Users without TTPs (Extended Version),"
Dartmouth Computer Science Technical Report TR2007-601, September 2007.
(Extended version of our CCS '07 paper)
(bibtex)
- Peter C. Johnson, Apu Kapadia, David Kotz, and Nikos Triandopoulos,
"People-Centric Urban Sensing: Security Challenges for the New Paradigm,"
Dartmouth Computer Science Technical Report TR2007-586, February 2007.
(Subsumed by our COMSNETS '09 paper)
- Apu Kapadia, Prasad Naldurg, and Roy H. Campbell,
"Routing with Confidence: A Model for Trustworthy Communication,"
Also appears as UIUC Technical Report UIUCDCS-R-2006-2680 (UILU-ENG-2006-1707), January 2006.
(Significantly updates our POLICY '04 paper)
(bibtex)
- Apu Kapadia, Prasad Naldurg, and Roy H. Campbell,
"Distributed Enforcement of Unlinkability Policies: Looking Beyond the Chinese Wall,"
UIUC Technical Report UIUCDCS-R-2006-2689 (UILU-ENG-2006-1718), February 2006.
(Subsumed by our POLICY '07 paper)
- Apu Kapadia, Wu-chun Feng, and Roy H. Campbell,
"GREEN: A TCP Equation-Based Approach to Active Queue Management,"
UIUC Technical Report: UIUCDCS-R-2004-2408/UILU-ENG-2004-1710, February 2004.
(Significantly updates our GLOBECOM '02 paper)
(bibtex) (ns-2 code)
Other Reports
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