A key management scheme for large scale distributed sensor networks

  • Authors:
  • Yong Ho Kim;Hwaseong Lee;Dong Hoon Lee;Jongin Lim

  • Affiliations:
  • Center for Information Security Technologies (CIST), Korea University, Seoul, Korea;Center for Information Security Technologies (CIST), Korea University, Seoul, Korea;Center for Information Security Technologies (CIST), Korea University, Seoul, Korea;Center for Information Security Technologies (CIST), Korea University, Seoul, Korea

  • Venue:
  • PWC'06 Proceedings of the 11th IFIP TC6 international conference on Personal Wireless Communications
  • Year:
  • 2006

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Abstract

To guarantee secure communication in wireless sensor networks, secret keys should be securely established between sensor nodes. Recently, an efficient security mechanism was proposed for large-scale distributed sensor networks by Zhu, Setia, and Jajodia. In their scheme, each node uses a single initial key to establish pair-wise keys and erases the key after key setup. If the key is compromised during key setup, however, the entire network will be compromised. Therefore, the performance overhead during key setup is very important for the speedy key establishment. In this paper, we propose a modified scheme which reduces the performance overhead during key setup and has provable security after key setup.