Credibility protection for resource sharing and collaborating in non-center network computing environments

摘要: Non-center network computing environments have some unique characteristics, such as instability, heterogeneity, autonomy, distribution and openness, which bring serious issues of security reliability. This article proposes a brand-new credibility protection mechanism for resource sharing collaboration in non-center environments. First, the three-dimensional hierarchical classified topology (3DHCT) is proposed, provides basic framework realizations identity credibility, behavior capability credibility. Next, agent technology utilized to construct model. also new comprehensive evaluation algorithm with simple, efficient, quantitative able meet requirements evaluating well. The Dempster-Shafer theory evidence combination rule are used achieve evaluated current historical performance nodes providers consumers realize more accurate prediction. Based on simulation test platform, been conducted validity proposed algorithms. Experiment analysis show that algorithms suitable large-scale, dynamic environments, maintain networks without relying central node, make gradually evolve into an orderly, stable reliable environment efficiently.