Data Integrity Proof in Cloud Computing using TPA with Privacy Preserving

Cloud Storage such as Google, Yahoo, and Amazon EC2 are cheap and sensible option for both home and professional users for storing their large amount of data remotely on Cloud Server. Customers often use these services to store valuable data such as email, family photos and videos, and disk backups. Cloud Computing is the brood architecture of computing. Cloud storage provide fringe benefit like on-demand network access to a shared pool of configurable computing resources, user do not need to maintain data as the data is maintained by the cloud service provider, user is billed based on usage, though the data is stored remotely it can be handle from anywhere by internet. These advantages make cloud storage very widespread but still it is suffering from internal and outside threats. The data loss incidents may take place because of network and software bugs, the CSP (Cloud Service Provider) may fur the data loss incidents for maintain reputation. To check the integrity of outsourced data in this paper allow a third- party auditor with privacy preserving. TPA also to perform multiple data files by batch auditing. User data privacy should maintain by the third party auditing process.