secFleck: A Public Key Technology Platform for Wireless Sensor Networks

  • Authors:
  • Wen Hu;Peter Corke;Wen Chan Shih;Leslie Overs

  • Affiliations:
  • Autonomous Systems Laboratory, CSIRO ICT Centre, Australia;Autonomous Systems Laboratory, CSIRO ICT Centre, Australia;Autonomous Systems Laboratory, CSIRO ICT Centre, Australia;Autonomous Systems Laboratory, CSIRO ICT Centre, Australia

  • Venue:
  • EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
  • Year:
  • 2009

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Abstract

We describe the design and implementation of a public-key platform, secFleck, based on a commodity Trusted Platform Module (TPM) chip that extends the capability of a standard node. Unlike previous software public-key implementations this approach provides E-Commerce grade security; is computationally fast, energy efficient; and has low financial cost -- all essential attributes for secure large-scale sensor networks. We describe the secFleck message security services such as confidentiality, authenticity and integrity, and present performance results including computation time, energy consumption and cost. This is followed by examples, built on secFleck, of symmetric key management, secure RPC and secure software update.