期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2014
卷号：2
期号：10
出版社：S&S Publications
摘要：Cloud computing, as an emerging computing standard. Cloud computing enables users to remotely storetheir data in a cloud and also benefit from services on-demand. With rapid development of cloud computing, moreenterprises will outsource their sensitive data for sharing in a cloud. To maintain the shared data confidential againstuntrusted cloud service providers (CSPs), a natural way is to store only the encrypted data in a cloud. The majorproblems of this approach include establishing Decomposing Access Control Polices, delegated access control for theencrypted data, proof of ownership allow storage server to check a user data ownership based on hash value and theaccess rights from users when they are no longer authorized to access the encrypted data. In the proposed approach theprivacy of users is protected while enforcing attribute based ACPs and utilizing the two layer of encryption reduce theoverhead at Owner, opposed to unauthorized access to data and to any data leak during sharing process, providinglevels of access control verification.
关键词：cloud computing; TLE; policy decomposition; privacy preserving; access control
