Sybil Defenses


Novel protocols to limit the impact of malicious users in distributed systems.



Publications


Note: Papers marked with ACM logo have ACM Author-izer links. You can download the pdf for free by clicking on the title, even without a subscription to the ACM Digital Library.

ACM DL Author-ize service DCast: Sustaining Collaboration in Overlay Multicast despite Rational Collusion
Haifeng Yu, Phillip B. Gibbons, Chenwei Shi
[CCS '12] Proceedings of the 2012 ACM conference on Computer and communications security,
Raleigh, NC, October 2012

SybilLimit: A Near-Optimal Social Network Defense Against Sybil Attacks  (pdf)
Haifeng Yu, Phillip B. Gibbons, Michael Kaminsky, Feng Xiao
[TON] IEEE/ACM Transactions on Networking, 18:3, June 2010

DSybil: Optimal Sybil-Resistance for Recommendation Systems  (pdf)
Haifeng Yu, Chenwei Shi, Michael Kaminsky, Phillip B. Gibbons, Feng Xiao
[Oakland '09] Proceedings of the 30th IEEE Symposium on Security and Privacy, Oakland, CA, May 2009

SybilGuard: Defending against Sybil Attacks via Social Networks  (pdf)
Haifeng Yu, Michael Kaminsky, Phillip B. Gibbons, Abraham Flaxman
[TON] IEEE/ACM Transactions on Networking, 16:3, June 2008. Special issue of best papers from SIGCOMM '06

SybilLimit: A Near-Optimal Social Network Defense Against Sybil Attacks  (pdf)
Haifeng Yu, Phillip B. Gibbons, Michael Kaminsky, Feng Xiao
[Oakland '08] Proceedings of the 29th IEEE Symposium on Security and Privacy, Oakland, CA, May 2008

ACM DL Author-ize service SybilGuard: Defending against Sybil Attacks via Social Networks
Haifeng Yu, Michael Kaminsky, Phillip B. Gibbons, Abraham Flaxman
[SIGCOMM '06] ACM SIGCOMM Computer Communication Review - Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications, Pisa, Italy, September 2006


Researchers


Students


  • Chenwei Shi (NUS)
  • Feng Xiao (NUS)