Research on Trust based on Internet of Things 

Jianjun Wu 

Hunan City University, Yiyang, 413000, China 

Abstract: This paper proposes a hierarchical trust system, which separates the different trust demands of the subjects in the heterogeneous environment. According to the weakness of the evidence theory, a verifiable caching interaction digest schema (VCID) is proposed, which constructs the circulation of “credible pheno-menon –credible behavior–credible node –credible institution–credible authorization” in the architecture of trust to well integrate the reader trust and the reputation of the institution. The experiment shows that relative to the evidence theory, the proposed VCID algorithm can more effectively detect the malicious terminal nodes. In addition, the hierarchical architecture of trust has a very good trust convergence. The trust mechan-ism in this paper can meet the trust demands of different subjects, and has a relatively faster trust convergence and extensibility at the same time. 

Keywords: Things, different subjects,effectively