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

Authentication and Key Establishment in Dynamic Wireless Sensor Networks

1
Cryptography and Security Department, Institute for Infocomm Research, 138632, Singapore
2
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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Abstract

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. View Full-Text
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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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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