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TRUST MANAGEMENT FOR DEFENDING ON-OFF ATTACKS?

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DEFENDING ON-OFF ATTACKS

                               Existing trust management schemes that employ redemption schemes fail to discriminate between temporary errors and disguised malicious behaviors in which the attacker cleverly behaves well and badly alternatively. In this paper, we present the vulnerabilities of existing redemption schemes, and describe a new trust management and redemption scheme that can discriminate between temporary errors and disguised malicious behaviors with a flexible design. We show the analytical results of the trust management scheme, and demonstrate the advantages of the proposed scheme with simulation conducted in a Wireless Sensor Network.


TRUST MANAGEMENT FOR DEFENDING ON-OFF ATTACKS

          Trust is an important but complex concept in social science. Trust helps people to make decisions in unpredictable circumstances by reducing the uncertainty. Many distributed systems can be unpredictable and uncertain when the entities try to collaborate with each other. Because of the great number of possible threats in the varying applications that can be deployed through a distributed system, applying trust in such systems can be quite complex. Research on trust management schemes, which manage trust and decide policies, has emerged as a challenging issue.


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