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出 处:《计算机应用》2012年第A02期267-270,共4页journal of Computer Applications
摘 要:由于受到虚拟化和弹性化特性的影响,与传统的访问控制相比,云计算下访问控制的约束条件更加复杂,主客体属性及主体所拥有的角色也因而处于动态变化之中。针对云计算下访问控制的上述问题,提出一种基于基于角色的访问控制(RBAC)的云计算访问控制模型。该模型将动态可变机制与主客体安全等级引入到访问控制策略中,既可保证云环境下数据的安全性和可靠性,又具有一定的灵活性。最后给出该模型的实现过程,并在基于云计算的医疗保健系统中予以实现。Because of the virtualization and elastic properties of cloud computing, the access control of cloud environment is different from the traditional access control under limiting conditions, thus the properties of the host and the guest and the role of the host are in the dynamic changes. In consideration of these characteristics of cloud computing access control, a cloud computing access control model based on the Role-Based Access Control (RBAC) model is proposed. This model can not only ensure the security and reliability of the data stored in the cloud, but also guarantee a certain of elasticity and flexibility. Finally, the model' s realization process was given, and was achieved in the health care system based on cloud computing environment.
关 键 词:云计算 云安全 访问控制 基于角色的访问控制 灵活性
分 类 号:TP393[自动化与计算机技术—计算机应用技术]
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