Adaptive Link Fingerprint Authentication Scheme Against Sybil Attack in ZigBee Network
Bin Yu, Meigen Huang, Yicai Huang, Zhiyin Kong · JOURNAL OF ELECTRONICS INFORMATION TECHNOLOGY · 2016
To solve the problem that Sybil attack damages the uniqueness of node identity in ZigBee network, an adaptive link fingerprint authentication scheme against Sybil attack is proposed. First, a link fingerprint based on the characteristics of wireless link is designed. Based on this fingerprint, two algorithms are presented. One is the estimation algorithm of coherence time reflecting channel's quality and the other is the dynamic application algorithm of Guaranteed Time Slot (GTS) adapting to changes in child node's number. At the same time, the authenticating procedure for Sybil attack is presented. Security analysis and experiment results show that the node authentication rate of the proposed scheme can reach more than 97% under the condition of security boundary in communication environment. Due to the usage of link fingerprint, the scheme has lower resource requirements.