A Survey on Proof of Retrievability and its Techniques

Cloud storage permits users to store their data in a remote server to eliminate overpriced local storage and management costs, then access data anytime, anyplace. Variety of solutions are projected to tackle the integrity of stored cloud data and its retrievability. One amongst the most important consideration with data storage in cloud today is data integrity verification of untrusted cloud. A very important approach to attain this goal of data integrity verification is Proof Of Retrievability, in which the storage server will assure verifier via a concise proof that a client's file is obtainable. In this work, the study on static and dynamic approaches of Proof Of Retrievability and numerous techniques are discussed.