Journal on Communications ›› 2022, Vol. 43 ›› Issue (2): 118-130.doi: 10.11959/j.issn.1000-436x.2022024

• Papers • Previous Articles     Next Articles

Trust evaluation algorithm of IoT edge server based on cooperation reputation and device feedback

Lin ZHANG1,2, Xinyan WEI1, Xiping LIU1, Haiping HUANG1,2, Ruchuan WANG1,2   

  1. 1 College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
    2 Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks, Nanjing 210003, China
  • Revised:2021-10-20 Online:2022-02-25 Published:2022-02-01
  • Supported by:
    The National Natural Science Foundation of China(61572260);The National Natural Science Foundation of China(61872196);The National Natural Science Foundation of China(61872194);Scientific and Technological Support Project of Jiangsu Province(BE2017166)

Abstract:

Aiming at the security problem of edge server, a trust evaluation algorithm was proposed, which integrated server cooperation reputation and device user feedback to improve the security of edge computing context.In the process of interaction, a fusion algorithm based on objective information entropy theory was used to aggregate the cooperation reputation between servers, and a partial homomorphic encryption algorithm was used to prevent the leakage of user data in the process of interaction.After the interaction, the highly trusted device node was selected to calculate the feedback trust, which overcame the malicious feedback of the traditional mechanism.When calculating the global trust, the expected score of the server and the adaptive weight calculation method were considered, which overcame the limitations of the traditional trust scheme.The experimental results show that the proposed trust calculation scheme has low time complexity and spatial complexity, and can effectively resist the attack of malicious nodes.

Key words: Internet of things, edge server, reputation, feedback, trust aggregation

CLC Number: 

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