Journal of Guangxi Normal University(Natural Science Edition) ›› 2013, Vol. 31 ›› Issue (3): 164-168.

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High Safety Scheme of Key Pre-distribution with a Mobile Sink in Wireless Sensor Network

CHEN Yan, WU Wen-kang, LIANG Jun-bin   

  1. College of Computer and Electronic Information,Guangxi University,Nanning Guangxi 530004,China
  • Received:2013-05-03 Online:2013-09-20 Published:2018-11-26

Abstract: In the wireless sensor network with a mobile sink,the mobile sink and the sensors use their shared keys to communicate with each other securely.When some nodes are captured by the adversary,the key information maybe exposed.If each node stores large number of keys,it would reduce the network resilience.Otherwise,it may reduce the network connectivity.In order to solve this problem,this paper proposes a new key pre-distribution scheme,named N-PGPS,which is based on the algorithm of PGPS.This scheme adopts a symmetric polynomial φ(x',y') to produce a perturbed key,which enhances the network resilience effectively.In addition,changing the value of t and s in N-PGPS can also increases the network connectivity observably.The analytical results clearly show that the new schemes perform better in the aspect of network resilience and network connectivity than the existing key pre-distribution schemes in a wireless sensor network with a mobile sink.

Key words: polynomial, key pre-distribution, network resilience, network connectivity

CLC Number: 

  • TP393
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