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Full paper: Postscript, PS.GZ, PDF


SPINS: Security Protocols for Sensor Networks

Adrian Perrig, Robert Szewczyk, Victor Wen, David Culler, J. D. Tygar
Department of Electrical Engineering and Computer Sciences
University of California, Berkeley
{perrig, szewczyk, vwen, culler, tygar}@cs.berkeley.edu

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. SPINShas two secure building blocks: SNEPand μTESLA. SNEPprovides 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. μTESLAis 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.




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Adrian Perrig
Fri Jun 1 22:51:44 PDT 2001