关键词: 访问控制,信任推荐,信任模型,线性组合

Abstract: The research of access control is an important issue in resource sharing based on networks.In order to improve the prediction ability of access control for unknown nodes,this paper proposed a dynamic linear relevance based access control model.Firstly,we proposed an architecture of access control containing service requestor,service recommendation node and service provider.Then,we proposed a dynamic trust score linear computing approach.The proposed approach represents the global trust score of node with the linear combination of direct trust score and recommendation trust score,and adjusts the weights of direct trust score and recommendation trust score with history records between nodes.Finally,the simulation experiments show that,compared with related access control models,the proposed model has higher prediction success rate,and can resist malicious attacks more efficiently.

Key words: Access control,Trust recommendation,Trust model,Linear combination