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FC
2007
Springer
128views Cryptology» more  FC 2007»
15 years 4 months ago
Informant: Detecting Sybils Using Incentives
We propose an economic approach to Sybil attack detection. In our Informant protocol, a detective offers a reward for Sybils to reveal themselves. The detective accepts from one i...
N. Boris Margolin, Brian Neil Levine
SACRYPT
2004
Springer
15 years 3 months ago
On Proactive Secret Sharing Schemes
Abstract. This paper investigates the security of Proactive Secret Sharing Schemes. We start with revision of the mobile adversary model of Herzberg’s et al. imposing less restri...
Ventzislav Nikov, Svetla Nikova
TKDE
2010
272views more  TKDE 2010»
14 years 8 months ago
P2P Reputation Management Using Distributed Identities and Decentralized Recommendation Chains
—Peer-to-peer (P2P) networks are vulnerable to peers who cheat, propagate malicious code, leech on the network, or simply do not cooperate. The traditional security techniques de...
Prashant Dewan, Partha Dasgupta
SP
2010
IEEE
226views Security Privacy» more  SP 2010»
15 years 1 months ago
Chip and PIN is Broken
—EMV is the dominant protocol used for smart card payments worldwide, with over 730 million cards in circulation. Known to bank customers as “Chip and PIN”, it is used in Eur...
Steven J. Murdoch, Saar Drimer, Ross J. Anderson, ...
ICC
2007
IEEE
15 years 4 months ago
Using Client Puzzles to Mitigate Distributed Denial of Service Attacks in the Tor Anonymous Routing Environment
— A novel client puzzle protocol, the Memoryless Puzzle Protocol (MPP), is proposed and investigated. The goal is to show that MPP is a viable solution for mitigating distributed...
Nicholas A. Fraser, Douglas J. Kelly, Richard A. R...