Review on Secure Auditing, Preserving and Integrity of Data Using TPA on Cloud Storage

User should use the data storage without any loss as it is stored locally. Auditing process is important process to ensure integrity, user are not that skilful to maintain integrity of data and they are not aware about risk and security action. Hence so to perform user can depend on TPA (third party authentication), which will check integrity and privacy on cloud data which is stored locally.TPA audit the integrity and provides appropriate result to user. Results contain modified, deleted and uploaded information of files. User has to make sure that privacy is preserved from TPA with minimal consumption of cloud resources while auditing process. In this paper we propose a system that will provide integrity to locally stored data without downloading files avoiding additional resources and vulnerability. We further extend our result to enable the TPA to perform audits for multiple users simultaneously and efficiently. Extensive security and performance analysis show the proposed schemes are provably secure and highly efficient