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

Authentication and Key Establishment in Dynamic Wireless Sensor Networks

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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.
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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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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