Apu Kapadia's Publications

Refereed Journal Articles

• Patrick P. Tsang, Man Ho Au, Apu Kapadia and Sean W. Smith,
  "BLAC: Revoking Repeatedly Misbehaving Anonymous Users Without Relying on TTPs,"
  To appear in ACM Transactions on Information and System Security (ACM TISSEC)
  (bibtex)(preprint)

• Patrick P. Tsang, Apu Kapadia, Cory Cornelius, and Sean W. Smith,
  "Nymble: Blocking Misbehaving Users in Anonymizing Networks,"
  To appear in IEEE Transactions on Dependable and Secure Computing (IEEE TDSC)
  Available online as a preprint, Sep. 1, 2009. IEEE Computer Society Digital Library.
  Nymble Project Homepage
  (bibtex)(ieee preprint)

• 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)

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.
  Runner-up for PET Award 2009: Outstanding Research in Privacy Enhancing Technologies!
  (bibtex)(acm)(pet award)

• 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.
  Runner-up for PET Award 2009: Outstanding Research in Privacy Enhancing Technologies!
  (bibtex)(acm)(original extended version)(new journal submission, provisionally accepted) (pet award)

• 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.
  (Subsumed by our TDSC Journal paper)
  (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

• Apu Kapadia, David Kotz, and Nikos Triandopoulos,
  "Opportunistic Sensing: Security Challenges for the New Paradigm,"
  In Proceedings of The First International Conference on Communication Systems and Networks (COMSNETS '09),
  Bangalore, India, January 5th–10th, 2009.
  (bibtex)(ieee)

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

• Apu Kapadia,
  "A Case (Study) For Usability in Secure Email Communication,"
  IEEE Security and Privacy, 5(2):80–84,
  March/April 2007.
  (bibtex)(ieee)

Theses

• Apu Kapadia, Models for Privacy in Ubiquitous Computing Environments, Ph.D. Thesis, University of Illinois at Urbana-Champaign, October 2005. Also appears as UIUC Technical Report UIUCDCS-R-2005-2613 (UILU-ENG-2005-1804), September 2005.
  (bibtex)

• Apu Kapadia, I-RBAC 2000: A Dynamic Role Translation Model For Secure Interoperability, M.S. Thesis, University of Illinois at Urbana-Champaign, May 2001.
  (bibtex)

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

• Apu Kapadia, Charng-da Lu, "Random Number Generators," CS/ECE 441 Project Report, University of Illinois at Urbana-Champaign, May 2001
  

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