Journal on Communications ›› 2015, Vol. 36 ›› Issue (1): 100-110.doi: 10.11959/j.issn.1000-436x.2015012

• Academic paper • Previous Articles     Next Articles

Research on trust measure and management for open distributed systems based on dynamic grouping

Li-ming JIANG1,2,Zhi-ming LIU1,2,Kun ZHANG1,2,Jian XU1,2,Hong ZHANG1,2   

  1. 1 School of Computer Science and Technology,University of South China,Hengyang 421001,China
    2 School of Computer Science and Technology,Nanjing University of Science and Technology,Nanjing 210094,China
  • Online:2015-01-25 Published:2017-06-21
  • Supported by:
    The National Natural Science Foundation of China;The Project of Hunan Province Science and Technology Program;The Scientific Research Starting Foundation for Doctors of China in University of South China;The Construct Program of the Key Laboratory in University of South China

Abstract:

A stability enhanced group-based trust model(denoted by SEGTM) for open distributed systems was presented to solve the problems of not sufficiently maintaining trust relation between peers due to the dynamic changes in trust network topology.First,the formation and dynamic management of peers' group were depicted in detail,including nodes gathered into the same group with similar interests,competition for group head and nodes within the group leave in active or passive ways.Then,the trust relation in proposed model was categorized into three kinds and subsequently each solution for these kinds was also put forward.So,the problems of decline in accuracy of computational trust degree between peers due to the difference of peers' interests and low probability of repeated transactions between them were addressed.Simulation results show that the model not only enhances the fairness and stability in response to dynamic changes in network topology,but also can effectively resist the attacks of malicious nodes.

Key words: open distributed systems, trust network, trust model, local trust degree

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