A Scheme for Checking Data Correctness in the Cloud

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 realise 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. In this paper we propose a data correctness scheme in which a Third Party can audit the data stored in the cloud and assure the customer that the data is safe. This scheme ensures that the storage at the client side is minimal which will be beneficial for thin clients.