Journal of Xidian University ›› 2019, Vol. 46 ›› Issue (4): 58-65.doi: 10.19665/j.issn1001-2400.2019.04.009

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IoT Node trust comprehensive evaluation model

XIE Lixia,WEI Ruixin   

  1. School of Computer Science and Technology, Civil Aviation University of China, Tianjin 300300, China
  • Received:2019-03-03 Online:2019-08-20 Published:2019-08-15

Abstract:

Aiming at the low accuracy and capability to deal with malicious nodes of the Internet of Things(IoT) trust evaluation model, an IoT node comprehensive trust evaluation model (INCTEM) is proposed. First, the evaluation index of the same quality service strength is introduced to reduce the non-intrusive impact on trust evaluation. Second, the recommended node’s reliability is evaluated from three aspects: node similarity, difference and recommended node’s trust value. Then the recommended node’s reliability is used as the recommendation trust weight. Finally, the adaptive weights of direct and recommended trust are calculated to compute the comprehensive trust value. Experimental results show that the INCTEM has advantages in dealing with malicious services and malicious recommendation behaviors, and can reduce the transmission energy consumption while ensuring the validity of trust evaluation.

Key words: internet of things, trust evaluation, Bayesian theory, recommendation trust, node similarity

CLC Number: 

  • TP309