期刊名称：International Journal of Computer Science and Information Technologies
电子版ISSN：0975-9646
出版年度：2014
卷号：5
期号：3
页码：4481-4484
出版社：TechScience Publications
摘要：In cloud storage service, users upload their data together with authentication information to cloud storage server .Using this services user can enjoy the on-demand highquality applications and services, without burden of local data storage and maintenance .Those advantages are causes of security and privacy problem. So the integrity protection is very challenging task in cloud computing. Hence developer introduce a Third Party Auditor (TPA) to check the integrity of outsource data .In this paper we proposed a method that allow the data owner to delegate the auditing task to untrusted TPA in secure manner, that 1)the data owner can verify whether the TPA has indeed performed the specified audit task, and 2) whether the TPA did the audit task at the right time specified by the data owner. And extended our result to using multiple authorities achieves anonymous cloud data access control and provide a more security for user data. .Our security analysis shows the proposed schema are more secure and highly efficient in cloud computing
关键词：Secure Delegation of Auditing; public auditability;Multiple -Authorities; privileges tree
