Now-a-days most of services are offered on cloud platform, which demands for the secure data auditing of cloud. However people have failed to notice that, auditing cannot handle encrypted data in cloud computing environment. By rethinking the approach to auditing process over encrypted data, one fixes the security challenges in auditing of encrypted cloud data. To provide better solution, the proposed public auditing algorithm is used to support the encrypted data, to secure data from unauthorized user, cloud service provider and third party auditor. For security of data, data owner stores data in encrypted form. The proposed auditing algorithm handles encrypted data and follows auditing process of without decrypting data. The algorithm performs auditing over encrypted data. As data is not decrypted by auditors during auditing process, proposed algorithm becomes more secure than existing algorithms. Also the third party auditing process removes auditing overhead of data owner.
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