Dynamic key based data owner centric model for ensuring data security in cloud

Cloud computing is model which uses combine concept of “software-as-a-service” and “utility computing”, provide convenient and on-demand services to requested end users. Security in Cloud computing is an important and critical aspect, and has numerous issues and problem related to it. Cloud service provider and the cloud service consumer should make sure that the cloud is safe enough from all the external threats so that the customer does not face any problem such as loss of data or data theft. There is also a possibility where a malicious user can penetrate the cloud by impersonating a legitimate user, thus infecting the entire cloud and affects many customers who are sharing the infected cloud. This paper firstly lists the parameters that affect the security of the cloud then it explores the cloud security issues and problems faced by cloud service provider and cloud service consumer such as data, privacy, and infected application and security issues. It discusses a new technique to tackle these issues and problems.