An Analysis of Third Party Auditing Techniques in Cloud Computing

Abstract: The usage of Cloud computing is increases rapidly in many enterprises. It provides a framework to cloud users. It aims to provide a resource based on-demand. It avoids online usage burden of accessing data through internet. Cloud storage supports to maintain data securely in cloud. To enhance data correctness of cloud, auditing is done by Third Party Auditor (TPA). The TPA can check integrity of data in cloud periodically. During auditing, an auditor does not reveal the information of the user to others. A method that uses the keyed Hash Message Authentication Code (HMAC) with the Homomorphic encryption to enhance the security of TPA.

Keywords: TPA, HMAC, Homomorphic encryption, Security.