期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2013
卷号：4
期号：3-3
出版社：Seventh Sense Research Group
摘要：Cloud computing is going to be very famous technology in IT enterprises. For an enterprise, the data stored is huge and it is very precious. All tasks are performed through networks. Hence, it becomes very important to have the secured use of data. In cloud computing, the most important concerns of security are data security and privacy. And also flexible and scalable, fine grained access control must be maintained in the cloud systems. For access control, being one of the classic research topics, many schemes have been proposed and implemented. There are policy based schemes have been proposed. In this paper, we are going to explore various schemes for encryption that consist of Attribute based encryption (ABE) and its types KPABE, CPABE. Further discussion consists of improvement in CPABE to CPASBE and to HASBE. A comparison table has been included for comparative study of these techniques.
关键词：Access control; Attribute based encryption; Key policy; ciphertext policy; hierarchical-ASBE
