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：2
页码：2136-2143
出版社：TechScience Publications
摘要：There is always a risk of data owner’s identity and privacy when data is stored in a untrusted cloud. As the data can be easily accessed by others in the cloud, there is also a risk of data modification or data stealing. To overcome this, a method that encrypts the data before it is stored in the cloud and a technique to find the guilt agent is proposed. This paper also focuses on the dynamic groups that work in organizations that use cloud for their data storage, where a newly joined user can directly decrypt the files stored in the cloud before he joined the cloud. We are also proposing a method using which storage servers as well as unauthorized users cannot learn the content stored in the cloud
关键词：guilt agent; secure cloud computing; dynamic;groups; file log; group key
