One-Time sensors: a novel concept to mitigate node-capture attacks

  • Authors:
  • Kemal Bicakci;Chandana Gamage;Bruno Crispo;Andrew S. Tanenbaum

  • Affiliations:
  • Department of Computer Science, Vrije Universiteit Amsterdam, The Netherlands;Department of Computer Science, Vrije Universiteit Amsterdam, The Netherlands;Department of Computer Science, Vrije Universiteit Amsterdam, The Netherlands;Department of Computer Science, Vrije Universiteit Amsterdam, The Netherlands

  • Venue:
  • ESAS'05 Proceedings of the Second European conference on Security and Privacy in Ad-Hoc and Sensor Networks
  • Year:
  • 2005

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Abstract

Dealing with captured nodes is generally accepted as the most difficult challenge to wireless sensor network security. By utilizing the low-cost property of sensor nodes, we introduce the novel concept of one-time sensors to mitigate node-capture attacks. The basic idea is to load each sensor with only one cryptographic token so that the captured node can inject only a single malicious message into the network. In addition, sybil attacks are avoided and explicit revocation is not necessary using one-time sensors. By using public key techniques, one-way hash functions and Merkle’s hash tree, we also show efficient implementations and interesting tradeoffs for one-time sensors.