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Although wireless sensor network is considered as one of promising technologies for ubiquitous computing environment, more researches for re-authentication of mobile nodes in wireless sensor network are required due to user mobility, one of important properties in ubiquitous computing environment. As the citizens in a city can be mobile user in wireless sensor network and the resource of the sensor nodes is limited, scalability of re-authentication is important. In other words, re-authentication with less communication cost should be proposed. In this paper, we suggest an efficient method of membership verification for re-authentication of mobile node and show the performance analysis of our membership verification. Using this method, we propose an efficient and scalable reauthentication protocol over wireless sensor network. Also, we provide performance and security analysis of our protocol.
Date of Publication: May 2011