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：4526-4530
出版社：TechScience Publications
摘要：Now-a-days the concept of Cloud Computing is one of the major theories in the world of IT. Its services are now being applied to several IT scenarios. Cloud Computing is the internet based computing which provides users with a number of services. Users store their data in the cloud without the burden of local data storage. As the user no longer have physical possession of data so the integrity and security of data become the major concern in the cloud computing. Data stored on the cloud server may be get corrupted and sometimes even the cloud service provider for his own benefit like for more space on data centre can discard the user data which is not used for a longer time. In order to maintain the integrity of data, the user takes the assistance of a Third Party Auditor (TPA). The TPA checks the integrity of data on user demand and the released audit reports help the user to evaluate the risk of their services. TPA have an experience that user does not have and have capability to check integrity of data which is not easy for the user to check. This paper highlighted the basics of cloud computing, general model and different approaches used for TPA.
关键词：Cloud computing; Data Integrity; Third;Party Auditor; MAC; Digital signatures; Public- auditing
