Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/843
Title: Key management issues in wireless sensor networks : current proposals and future developments
Authors: Lee, Johnson C.
Leung, Victor C. M.
Wong, Kirk H.
Cao, Jiannong
Chan, Henry
Subjects: Cryptographic protocols
Technological forecasting
Telecommunication network planning
Telecommunication security
Wireless sensor networks
Issue Date: Oct-2007
Publisher: IEEE
Source: IEEE wireless communications, Oct. 2007, v. 14, no. 5, p. 76-84
Abstract: Key management has remained a challenging issue in wireless sensor networks (WSNs) due to the constraints of sensor node resources. Various key management schemes that trade off security and operational requirements have been proposed in recent years. In this article, we first examine the security and operational requirements of WSNs and then review five key management protocols: Eschenauer, Du, LEAP, SHELL, and Panja. Eschenauer's scheme is a classical random key distribution scheme for WSNs. Du's scheme improves on Eschenauer's scheme by using key matrices. LEAP provides a highly flexible key management scheme using four types of keys. SHELL focuses on achieving high robustness, and Panja is optimized for hierarchical WSNs. LEAP, SHELL, and Panja support cluster-based operations and are more aligned with current trends as shown by the new standards, IEEE 802.15.4b and the ZigBee "enhanced" standard. Future developments like-ly will incorporate the features of LEAP and adjustable robustness enhancements from Eschenauer or Du; extremely security-critical applications may benefit from restructuring SHELL to ease implementation and maintenance. Developments for extremely large WSNs should consider improving Panja's scheme due to its hierarchical scalability feature.
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Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/843
DOI: 10.1109/MWC.2007.4396946
ISSN: 1536-1284
Appears in Collections:COMP Journal/Magazine Articles

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