云计算中基于信任-角色访问控制模型的研究

摘要

To guarantee the data security in cloud computing ,the role‐based access control model and trust‐based access control model are combined in this paper ,and a hybrid model based on "trust‐role" is proposed .The model introduces the calculation of the trust value on the base of role‐based access control ,so that it is required for verification of the trust value and obtain access to data .It is proved this model can effectively solve the legitimate access to data in the cloud ,and protect the security problem of data in cloud computing .%为了保证云计算中数据的安全性，将基于角色和信任的访问控制模型相结合，提出一种基于信任‐角色的混合云计算访问控制模型。该模型在基于角色的访问控制基础上引入信任度的计算，即用户需进行信任值的验证，才能获得访问数据的权限。通过在本地业务系统中的应用，表明该模型能够有效解决用户对云中数据的合法访问，即达到保护云中数据的安全问题。