International Journal of Innovative Technology and Exploring Engineering (IJITEE)
Cloud computing is nothing but specific style of computing where everything from computing power to infrastructure, business apps are provided \"As a service\". In cloud, shared resources, softwares and information is provided as a metered service over the network. By data outsourcing, users can be relieved from the burden of local data storage and maintenance. However, the fact that users no longer have physical possession of the possibly large size of outsourced data makes the data integrity protection in cloud computing a very challenging and potentially formidable task, especially for users with constrained computing resources and capabilities.