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WWW
2004
ACM
16 years 7 months ago
Spam attacks: p2p to the rescue
We propose a decentralized privacy-preserving approach to spam filtering. Our solution exploits robust digests to identify messages that are a slight variation of one another and ...
Ernesto Damiani, Sabrina De Capitani di Vimercati,...
131
Voted
ESORICS
2009
Springer
16 years 7 months ago
The Wisdom of Crowds: Attacks and Optimal Constructions
We present a traffic analysis of the ADU anonymity scheme presented at ESORICS 2008, and the related RADU scheme. We show that optimal attacks are able to de-anonymize messages mor...
Carmela Troncoso, Claudia Díaz, Emilia K&au...
STOC
2002
ACM
159views Algorithms» more  STOC 2002»
16 years 6 months ago
On the composition of authenticated byzantine agreement
A fundamental problem of distributed computing is that of simulating a secure broadcast channel, within the setting of a point-to-point network. This problem is known as Byzantine...
Yehuda Lindell, Anna Lysyanskaya, Tal Rabin
PERCOM
2008
ACM
16 years 6 months ago
A tamper-proof and lightweight authentication scheme
We present a tamper-proof and lightweight challenge-response authentication scheme based on 2-level noisy Physically Unclonable Functions (PUF). We present a security reduction, w...
Ghaith Hammouri, Erdinç Öztürk, Berk Sunar
ICDCS
2009
IEEE
16 years 3 months ago
Protecting Neighbor Discovery Against Node Compromises in Sensor Networks
The neighborhood information has been frequently used by protocols such as routing in sensor networks. Many methods have been proposed to protect such information in hostile envir...
Donggang Liu