Secure Aggregation for Wireless Networks

  • Authors:
  • Lingxuan Hu;David Evans

  • Affiliations:
  • University of Virginia;University of Virginia

  • Venue:
  • SAINT-W '03 Proceedings of the 2003 Symposium on Applications and the Internet Workshops (SAINT'03 Workshops)
  • Year:
  • 2003

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Abstract

An emerging class of important applications uses adhoc wireless networks of low-power sensor devices tomonitor and send information about a possibly hostileenvironment to a powerful base station connected to awired network. To conserve power, intermediate networknodes should aggregate results from individual sensors.However, this opens the risk that a single compromisedsensor device can render the network useless, or worse,mislead the operator into trusting a false reading. Wepresent a protocol that provides a secure aggregationmechanism for wireless networks that is resilient to bothintruder devices and single device key compromises. Ourprotocol is designed to work within the computation,memory and power consumption limits of inexpensivesensor devices, but takes advantage of the properties ofwireless networking, as well as the power asymmetrybetween the devices and the base station.