Privacy-Preserving Querying in Sensor Networks

Details Privacy-Preserving Querying in Sensor Networks Privacy-Preserving Querying in Sensor Networks

2009-05-13

arxiv.org/abs/0905.2158v1

Computer Science

Cryptography and Security

Preliminary version of this paper appeared in the Proceedings of ICCCN'09 under the same title

Scientific paper

Wireless Sensor Networks (WSNs) provide sensing and monitoring services by means of many tiny autonomous devices equipped with wireless radio transceivers. As WSNs are deployed on a large-scale and/or on long-term basis, not only traditional security but also privacy issues must be taken into account. Furthermore, when network operators offer on-demand access to sensor measurements to their clients, query mechanisms should ideally leak neither client interests nor query patterns. In this paper, we present a privacy-preserving WSN query mechanism that uses standard cryptographic techniques. Besides preventing unauthorized entities from accessing sensor readings, it minimizes leakage of (potentially sensitive) information about users' query targets and patterns.

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