Synthesize trust degree evaluting model for an information grid environment
Weimin Zheng · Journal of Tsinghua University(Science and Technology) · 2009
Dynamic changes of grid entities can result in security problems in the grid environment and in efficient use of resources.A trust value model was developed to evaluate grid entities in dynamic grid environments to improve grid security.A synthesized trust degree evaluation model(STDEM) was constructed based on a direct trust degree,an indirect trust degree and an overall trust degree.Each trust degree is quantified to evaluation node credibility in the grid system.The STDEM model parameters are analyzed in emulations.The STDEM model is applied to an actual data grid system to evaluate its effect evenness.