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Sensors 2010, 10(4), 3718-3731; doi:10.3390/s100403718

Authentication and Key Establishment in Dynamic Wireless Sensor Networks

Cryptography and Security Department, Institute for Infocomm Research, 138632, Singapore
Department of Computer Science, University of Malaga, 29071 Malaga, Spain
Author to whom correspondence should be addressed.
Received: 8 March 2010 / Revised: 6 April 2010 / Accepted: 6 April 2010 / Published: 13 April 2010
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When a sensor node roams within a very large and distributed wireless sensor network, which consists of numerous sensor nodes, its routing path and neighborhood keep changing. In order to provide a high level of security in this environment, the moving sensor node needs to be authenticated to new neighboring nodes and a key established for secure communication. The paper proposes an efficient and scalable protocol to establish and update the authentication key in a dynamic wireless sensor network environment. The protocol guarantees that two sensor nodes share at least one key with probability 1 (100%) with less memory and energy cost, while not causing considerable communication overhead.
Keywords: wireless sensor networks; authentication; key management; energy efficiency; scalability wireless sensor networks; authentication; key management; energy efficiency; scalability
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Qiu, Y.; Zhou, J.; Baek, J.; Lopez, J. Authentication and Key Establishment in Dynamic Wireless Sensor Networks. Sensors 2010, 10, 3718-3731.

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