摘要：In this paper, a new authorization delegation model is proposed, which is based on weighted directed graph to present the trust relationship between the entities and the existing issues, such as the evaluation of the trust and the presentation of the trust among the entities are addressed in simple and visual way. The model and the corresponding algorithm of the compliance checking is analyzed and proved to be correct and efficient. Detailed description and theoretical analysis show the proposed scheme is effective to provide security authorization in actual system
