An Improved Homomorphic Encryption Technology for the surveillance of cloud data

Abstract

The main aim of man is the attention of cloud. The benefits and services of cloud offers to the customers on demand and they can access through internet without the expense of computer storage system and maintenance. When the Fully Homomorphic Encryption is implemented in cloud data, it allows the number of additions and multiplications to be processed on cipher text. it allows computations to be carried out on a cipher text (the user's data in the cloud service, for instance), generating an result that is still encrypted but when decrypted by the user matches exactly the result that would be obtained if the same computational operations had been carried out on the user's plain-text as opposed to the uploaded cipher text. It is thus very useful for ensuring the privacy of data uploaded to cloud and other outsourced computer When we encrypt our data and send it to the cloud, we don’t know how cloud did the correct calculation and have the low performance in an existing system. In the proposed system, an individual data is more secure, because the Fully Homomorphic encryption(FHE) based on AES algorithm is performed effectively. This algorithm enables the performance on encrypted data without decryption.