Audit Cloud: Ensuring Data Integrity for Mobile Devices in Cloud Storage

Abstract

One of the promising field sectors of service provision turns out to be Cloud Computing. It involves storing the user's data to be able to use the applications and services that the cloud introduces. One of these risks that can attack the cloud computing is the integrity of the data stored in the cloud. Data Integrity Verification is one of the massive responsibilities of cloud data to reduce the participation in activities which manipulates the data of cloud users and providers. There are many ways to address this problem. Using Encryption and Decryption process for the data can solve the problem but it requires huge computing time and functional overheads. Applying data auditing can solve this problem. The main approach of this system is variant Paillier Homomorphic Cryptography (PHC) system with Homomorphic tag and combinatorial batch codes. Data Auditing consists of Provable Data Possession (PDP) and Proof of Retrievability (POR) techniques but these techniques have the limitations of queries. The Integrity Verification using the Third Party Auditor in the Proposed Scheme states the solution for the manipulation of data. The experimental results show the effectiveness and efficiency of the proposed system.