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：2017
卷号：6
期号：12
页码：22778
DOI：10.15680/IJIRSET.2017.0612097
出版社：S&S Publications
摘要：In cloud providing security, guarantees for the sharing data file. In Data Sharing privacy-preserving isstill a challenging issue, untrusted cloud and trusted Cloud due to the collusion attack that why we proposed the asecure data sharing scheme for dynamic members Firstly, we propose a secure way for key distribution and change theprivate key when user revoke the any group then other member of that group private key will changes with revokeduser. Secondly, our scheme can achieve fine-grained access control with two factor one is user password and seconds isone time Password. Thirdly, we can protect the scheme from collusion attack, which means that revoked users cannotget the original data file even if they conspire with the untrusted cloud
