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» Reasoning About Security Models
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SAC
2004
ACM
14 years 3 months ago
Trust enhanced ubiquitous payment without too much privacy loss
Computational models of trust have been proposed for use in ubicomp environments for deciding whether to allow customers to pay with an e-purse or not. In order to build trust in ...
Jean-Marc Seigneur, Christian Damsgaard Jensen
SAC
2004
ACM
14 years 3 months ago
An anonymous bonus point system for mobile commerce based on word-of-mouth recommendation
Next generation mobile devices will allow users to share and pass information within anonymous groups of people in an ad hoc manner. This will smooth the path for many kinds of ne...
Tobias Straub, Andreas Heinemann
ACNS
2010
Springer
154views Cryptology» more  ACNS 2010»
14 years 2 months ago
Shrinking the Keys of Discrete-Log-Type Lossy Trapdoor Functions
To this day, realizations in the standard-model of (lossy) trapdoor functions from discrete-log-type assumptions require large public key sizes, e.g., about Θ(λ2 ) group elements...
Xavier Boyen, Brent Waters
PKC
2010
Springer
148views Cryptology» more  PKC 2010»
14 years 1 months ago
On the Feasibility of Consistent Computations
In many practical settings, participants are willing to deviate from the protocol only if they remain undetected. Aumann and Lindell introduced a concept of covert adversaries to f...
Sven Laur, Helger Lipmaa
JCM
2007
143views more  JCM 2007»
13 years 9 months ago
A Simple Privacy Protecting Scheme Enabling Delegation and Ownership Transfer for RFID Tags
— RFID (Radio frequency identification) technology raises many privacy concerns among which the potential tracking of an RFID tag bearer and the eventuality of an illegitimate r...
Sepideh Fouladgar, Hossam Afifi