pDCS: Security and Privacy Support for Data-Centric Sensor Networks

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Executive Summary

The demand for efficient data dissemination/access techniques to find relevant data from within a sensor network has led to the development of Data-Centric Sensor (DCS) networks, where the sensor data instead of sensor nodes are named based on attributes such as event type or geographic location. However, saving data inside a network also creates security problems due to the lack of tamper resistance of the sensor nodes and the unattended nature of the sensor network. For example, an attacker may simply locate and compromise the node storing the event of his interest. To address these security problems, the authors' present pDCS, a privacy enhanced DCS network which offers different levels of data privacy based on different cryptographic keys.

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