2005 | OriginalPaper | Buchkapitel
One-Time Sensors: A Novel Concept to Mitigate Node-Capture Attacks
verfasst von : Kemal Bicakci, Chandana Gamage, Bruno Crispo, Andrew S. Tanenbaum
Erschienen in: Security and Privacy in Ad-hoc and Sensor Networks
Verlag: Springer Berlin Heidelberg
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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.