Towards Converging Fully Homomorphic Batch Encryption with Data Integrity Assurance in Cloud Setting

In encryption scheme setting, users who possess the right key can authorize to do computation with the data. In particular, cloud storage users lose their rights in terms of integrity on data, even after they ends up metered service from a CSP(Cloud Storage service provider), There is a possibility of dishonest computation over an old data by CSP also. Fully homomorphic encryption scheme address the problem of possessing the data in untrusted servers. In this proposed work, authors bring in a fully Homomorphic Batch Encryption Scheme using Integers with Shorter public key (HBEIS) converged with integrity verification process in a cloud setting. Any third-party auditor can do random audit on the encrypted data for assuring the correctness of data without possessing the original data. In our experimental set up, HBEIS scheme ensures optimal space and linear computational complexity.