Protecting Location Privacy in Sensor Networks Against a Global Eavesdropper

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Provided by: University of Teramo
Topic: Security
Format: PDF
While many protocols for sensor network security provide confidentiality for the content of messages, contextual information usually remains exposed. Such information can be critical to the mission of the sensor network, such as the location of a target object in a monitoring application, and it is often important to protect this information as well as message content. There have been several recent studies on providing location privacy in sensor networks. However, these existing approaches assume a weak adversary model where the adversary sees only local network traffic. The authors first argue that a strong adversary model, the global eavesdropper, is often realistic in practice and can defeat existing techniques.
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