Privacy-Preserving On Cloud

Abstract

Now a day’s many IT organisation wish to go for cloud computing environment, as there are various advantages of preferring this environment. Many techniques and methods are used to build this cloud environment in order to provide secure access to cloud. Cloud user become free from different data management task, as this data management is done by the third party expert auditor (TPA). But still there are certain security issues of this third party auditor as during this audit TPA can get access to the data in the cloud. Security in cloud has become the most on demand issue to be addressed in cloud computing environment. Various method and techniques are used to provide security in cloud environment. Privacy preserving between cloud and TPA has to be addressed to avoid the data leakages. RSA based homomorphism authenticator was used to encrypt the data. Here, AES instead of RSA is proposed, to increase the efficiency. To speed up the auditing by TPA batch auditing scheme is introduced, which has the ability to audit the files batch wise. Supporting data dynamics is privacy preserving and public auditing has special importance. Care must be taken so that no new vulnerabilities should get introduced.