Cloud computing is a subscription-based service where the user can obtain the networked storage space and computer resources. In cloud computing model, customers plug into the cloud to access IT resources which are priced and provided on demand services. The major feature of the cloud computing is that user's data are processed in remote machines, which are unknown to the data owners. Here the security breaches are raised. Users fear about their data control, so that they needed to account their data, which are stored in the cloud.