期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
卷号：4
期号：12
页码：11959
DOI：10.15680/IJIRSET.2015.0412041
出版社：S&S Publications
摘要：Access controls are security aspects that control how systems and user interact and co mmunicate with other resources and systems. Whenever an access control is being considered on cloud, there exists a mechan ism to reduce the common overhead of the internet and to provide a fine-grained access control. An attribute based encryption can be used to address these issues.In a centralized attribute based encryption, there is a single key distribution center that distributes attributes and secret keys to all users. This single key distribution center is a single point of failure and it is also hard to maintain, because of huge number of users who are supported on cloud. Due to the mentioned facts, in this paper a decentralized attribute based encryption mechanism is proposed that would permit any party to act as an attribute authority b y generating a user public key and issuing private keys to diverse users which reflect the user attributes without collaboration. The proposed mechanism also supports the features of anonymous authentication. Also, performance can be compared between decentralized attribute based encryption and decentralized cipher policy attribute based encryption
关键词：Decentralized attribute based encryption; Decentralized cipher policy attribute based encryptio n
