Public Auditing Scheme for Cloud Data Integrity Verification

Cloud computing is one that provides an on-demand accessibility for computer resources, particularly data storage and computing power by the user. It is generally used to describe data hubs that remain accessible to users over the internet. The users place their data in cloud to save their local memory. The cloud service providers will control the data that is placed in the cloud. As users upload their data in cloud that is controlled by service providers, they lose control over their data. Hence, we must have few safety measures to retain the user's data securely. Here, we described an auditing system that makes use of external auditor. We utilized Advanced Encryption Standard (AES) and Merkle Hash Tree (MHT) for ensuring integrity of cloud data. This work is accomplished in Amazon EC2 ubuntu16.04 server instance. From the results gained, we determine that our scheme is intact and considers a firm time to process files.