International Journal of Electronics Communication and Computer Engineering
Cloud computing is the delivery of computing and storage capacity as a service to a heterogeneous community of end-recipients. Cloud computing has brought advantages in the form of online storage. Data security for such a cloud service encompasses several aspects including secure channels, access controls, and encryption. And, when the authors consider the security of data in a cloud, they must consider the security triad: confidentiality, integrity, and availability. In the cloud storage model, data is stored on multiple virtualized servers. Physically the resources will span multiple servers and can even span storage sites.