Study Of The Technology On Attribute Based Access Control In Cloud Computing Services

The development of cloud computing has brought a revolutionary change to the Internet,it is a profound change in the network world. Meanwhile, the development of cloud computing is changing the way people store data and habits, it provides a great convenience for people to access the data they need at any time and place. Although there are so many advantages of cloud computing, but not all people can accept this new thing, they can not be assured that the data stored in the cloud due to the security of the cloud server problems.How to ensure the security of data access? Using the access control technique can effectively ensure the authorized users access to sensitive information, attribute-based access control becomes the focus of the research.To solve the above problems, the paper presents an attribute based access control model with XACML language, and study the attribute based access control model.Details are as follows:It describes the characteristics of cloud computing, discusses a series of security problems faced by cloud computing and analyzes the strategy and model of access control technology. Because the traditional access control is lack of flexibility, attribute based access control property is more suitable for the complex cloud computing environment.Combines the attribute based access control model with XACML policy by adding attribute based encryption in XACML proposes a model of the access control on cloud computing. XACML, which is general, suitable for the distributed and scalable, combined with the attribute based access control, makes access control easier and improves the correct rate of access decision.In the case of the cloud service provider can not know the reliability of the program greatly, it increases data security of cloud storage system in the open environment, reduce the complexity of management, and improve the efficiency of cloud access control to a certain extent.