Efficient user authentication and key agreement in wireless sensor networks

  • Authors:
  • Wen-Shenq Juang

  • Affiliations:
  • Department of Information Management, Shih Hsin University, Taipei, Taiwan, R.O.C.

  • Venue:
  • WISA'06 Proceedings of the 7th international conference on Information security applications: PartI
  • Year:
  • 2006

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Abstract

In wireless sensor networks, many sensor nodes form self-organizing wireless networks. The sensor nodes in these networks only have limited computation and communication capacity, storage and energy. In this paper, we propose a novel user authentication and key agreement scheme suitable for wireless sensor network environments. The main merits include: (1) the shared keys generation and management between all participants is flexible and simplified; (2) a sensor node only needs to register in a key center and can generate shared keys and exchange session keys with the other participants in the corresponding domain of the base station; (3) an installer can freely choose and change the password installed in a sensor node for protecting this node when it is installed or the battery of the node must be replaced; (4) the communication and computation cost is very low; (5) any two participants can authenticate each other; (6) it can generate a session key agreed by any two participants; (7) an installer can freely add new nodes to a sensor network after some nodes have already been installed in it; (8) our scheme is a nonce-based scheme which does not have a serious time-synchronization problem.