Virtual Fingerprinting as a Foundation for Reputation in Open Systems

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Provided by: University of Illinois at Chicago
Topic: Networking
Format: PDF
The lack of available identity information in attribute-based trust management systems complicates the design of the audit and incident response systems, anomaly detection algorithms, collusion detection/ prevention mechanisms, and reputation systems taken for granted in traditional distributed systems. In this paper, the authors show that as two entities in an attribute-based trust management system interact, each learns one of a limited number of virtual fingerprints describing their communication partner. They show that these virtual fingerprints can be disclosed to other entities in the open system without divulging any attribute or absolute-identity information, thereby forming an opaque pseudo-identity that can be used as the basis for the above mentioned types of services.
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