International Association of Computer Science and Information Technology(IACSIT)
Reducing costs, accelerating processes and simplifying management are all vital to the success of an effective IT infrastructure. Companies are increasingly turning to provide more flexible IT environments to help them realize these goals. One such solution is Cloud Computing. Cloud Computing enables tasks to be assigned to a combination of software and services over a network. For example storage of large data in cloud reduces costs and maintenance. But the customer is unaware of the storage location. Here risk involved is modification of data or tampering of data. Since the customer does not have control over data the cloud provider should assure the customer that data is not modified.