A Cross-Domain Trust Evaluating Under The Environment Of Internet Of Things

Security is the basis for the development of the Internet of Things while trust modeling and management are one of the means of security promotion. Trust is the managed and evaluated by the unit of the domain. But in actual network, cross domain scheduling often happens when suitable resources can be found in n the field. At this time, the trust model must support the transformation between different management domains, but the trust model concerned in transformation is often heterogeneous. what the cross domain trust studies is a trust relationship between heterogeneous nodes in cross domains. The standard evaluation index of cross domain trust requires a quantization between each call resources, provide the discriminant function, to meet the conditions you can call. The transformation method is reasonable and feasible, the task node selection resources in different domains, more consistent in the degree of trust.In relpy to the above problems, the paper first completes the transformation of trust between random nodes through transformation and comparison by use of normal distribution parameters, and thus solves the problems of trust evaluation and conversion between different domains, gradually realizing the migration of nodes cross-domain scheduling. The main research contents are:Firstly, the introduction of the static and dynamic properties to seek confidence index value of the trust, the paragraph completed the trust value calculation process, complete trust modeling.Secondly, this paper puts forward the structure of cross-domain trust evaluation system by taking static and dynamic attributes as intra-domain and cross-domain trust evaluation index; it introduces the two-level hierarchical evaluation model to solve the problems of intra-domain evaluation through comprehensive evaluation; it realizes the transformation between cross-domain random nodes through the transformation and comparison in application of normal distribution parameters, completing the cross-domain trust evaluation.Finally, it proposed a cross domain scheduling algorithm, the algorithm in this domain scheduling task, when the domain cannot find resources to meet the mission requirements, cross domain scheduling. The feasibility of the evaluation model and the cross domain scheduling is verified by the way of illustration.