A dynamic password-based user authentication scheme for hierarchical wireless sensor networks

Authors:
Ashok Kumar Das;Pranay Sharma;Santanu Chatterjee;Jamuna Kanta Sing
Affiliations:
Center for Security, Theory and Algorithmic Research, International Institute of Information Technology, Hyderabad 500 032, India;Center for Security, Theory and Algorithmic Research, International Institute of Information Technology, Hyderabad 500 032, India;Research Center Imarat (RCI), Defence Research and Development Organization, Hyderabad 500 069, India;Department of Computer Science and Engineering, Jadavpur University, Kolkata 700 032, India
Venue:
Journal of Network and Computer Applications
Year:
2012

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Abstract

Most queries in wireless sensor network (WSN) applications are issued at the point of the base station or gateway node of the network. However, for critical applications of WSNs there is a great need to access the real-time data inside the WSN from the nodes, because the real-time data may no longer be accessed through the base station only. So, the real-time data can be given access directly to the external users (parties) those who are authorized to access data as and when they demand. The user authentication plays a vital role for this purpose. In this paper, we propose a new password-based user authentication scheme in hierarchical wireless sensor networks. Our proposed scheme achieves better security and efficiency as compared to those for other existing password-based approaches. In addition, our scheme has merit to change dynamically the user's password locally without the help of the base station or gateway node. Furthermore, our scheme supports dynamic nodes addition after the initial deployment of nodes in the existing sensor network.