SPINS: security protocols for sensor networks

  • Authors:
  • Adrian Perrig;Robert Szewczyk;Victor Wen;David Culler;J. D. Tygar

  • Affiliations:
  • Department of Electrical Engineering and Computer Sciences, University of California, Berkeley;Department of Electrical Engineering and Computer Sciences, University of California, Berkeley;Department of Electrical Engineering and Computer Sciences, University of California, Berkeley;Department of Electrical Engineering and Computer Sciences, University of California, Berkeley;Department of Electrical Engineering and Computer Sciences, University of California, Berkeley

  • Venue:
  • Proceedings of the 7th annual international conference on Mobile computing and networking
  • Year:
  • 2001

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Abstract

As sensor networks edge closer towards wide-spread deployment, security issues become a central concern. So far, much research has focused on making sensor networks feasible and useful, and has not concentrated on security.We present a suite of security building blocks optimized for resource-constrained environments and wireless communication. SPINS has two secure building blocks: SNEP and &mgr;TESLA SNEP provides the following important baseline security primitives: Data confidentiality, two-party data authentication, and data freshness. A particularly hard problem is to provide efficient broadcast authentication, which is an important mechanism for sensor networks. &mgr;TESLA is a new protocol which provides authenticated broadcast for severely resource-constrained environments. We implemented the above protocols, and show that they are practical even on minimal hardware: the performance of the protocol suite easily matches the data rate of our network. Additionally, we demonstrate that the suite can be used for building higher level protocols.