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Research topics

Privacy-Respecting Reputation Systems

Reputation systems play an important role in Internet communities like eBay. They allow members of the community to estimate other member's behaviour before an interaction. Unfortunately the design of current reputation systems allows to generate user profiles including all contexts the user has been involved in. A more privacy-respecting design of reputation systems is needed while keeping the level of trust provided to the members by the use of reputations. We are investigating the design options for such systems and analyse the privacy possible designs could reach with common information-theoretic anonymity and unlinkability measurement. Privacy-respecting reputation systems are an important part to be integrated in identity management systems to allow privacy-enhacing and trustworthy interaction between equal partners in Internet communities.
Last modified: 1st Feb 2010, 2.32 PM
Author: Dipl.-Ing. Silvia Labuschke

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