Author： Qiu Ying Zhou Jianying Baek Joonsang Lopez Javier
Publisher： MDPI
E-ISSN： 1424-8220|10|4|3718-3731
ISSN： 1424-8220
Source： Sensors, Vol.10, Iss.4, 2010-04, pp. : 3718-3731
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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.
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