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：2015
卷号：3
期号：3
DOI：10.15680/ijircce.2015.0303195
出版社：S&S Publications
摘要：Cloud computing is emerging as a prevalent data interactive paradigm to realize users’ data remotelystored in an online cloud server. Cloud services provide more benefits for the users to enjoy the on-demand cloudapplications without considering the local limitations. When accessing the data, many users may be in a collaborativerelationship, and thus sharing of is significant to achieve productive benefits. The present solutions for securityfocuses on the authentication to realize that a user’s privative data cannot be accessed if it is found to be unauthorized,but it eliminates a subtle privacy issue during a user challenging the cloud server to request other users when the databeing shared. The challenge is the request for accessing reveals the user’s privacy no matter whether it has got the dataaccess permissions. The distributed privacy-preserving authentication protocol (SAPA) which is authority based toaddress above privacy issue for cloud storage. shared authority based privacy-preserving authentication protocol(SAPA) to address above privacy issue for cloud storage. In the SAPA, 1) shared access is achieved by anonymousaccess request matching mechanism with security and privacy considerations 2) attribute based access control isadopted to realize that the user can only access its own data fields; 3) proxy re-encryption is applied by the cloud serverto provide data sharing among the many users. Meanwhile, universal compos ability (UC) model is established toprove that the SAPA theoretically has the correct design. This clearly shows that the proposed protocol realizingprivacy-preserving data access authority sharing is impressive for multiple users collaborative cloud applications.
