An Efficient and Scalable Key Management Protocol for Secure Group Communications in Wireless Sensor Networks

2007 ◽  
Author(s):  
Hung-Min Sun ◽  
Chien-Ming Chen ◽  
Feng-Ying Chu
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Wireless Sensor ◽  
Group Communications ◽  
Management Protocol ◽  
Key Management Protocol ◽  
Secure Group Communications

scholarly journals Enhanced Key Management Protocols for Wireless Sensor Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Baojiang Cui ◽  
Ziyue Wang ◽  
Bing Zhao ◽  
Xiaobing Liang ◽  
Yuemin Ding
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Key Management ◽  
Rapid Development ◽  
Security Requirements ◽  
Wireless Sensor ◽  
Authentication Mechanism ◽  
Diffie Hellman ◽  
Management Protocol ◽  
Key Management Protocol

With rapid development and extensive use of wireless sensor networks (WSNs), it is urgent to enhance the security for WSNs, in which key management is an effective way to protect WSNs from various attacks. However, different types of messages exchanged in WSNs typically have different security requirements which cannot be satisfied by a single keying mechanism. In this study, a basic key management protocol is described for WSNs based on four kinds of keys, which can be derived from an initial master key, and an enhanced protocol is proposed based on Diffie-Hellman algorithm. The proposed scheme restricts the adverse security impact of a captured node to the rest of WSNs and meets the requirement of energy efficiency by supporting in-network processing. The master key protection, key revocation mechanism, and the authentication mechanism based on one-way hash function are, respectively, discussed. Finally, the performance of the proposed scheme is analyzed from the aspects of computational efficiency, storage requirement and communication cost, and its antiattack capability in protecting WSNs is discussed under various attack models. In this paper, promising research directions are also discussed.

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