A new technique for data encryption based on third party encryption server to maintain the privacy preserving in the cloud environment

As the cloud datacentres are exposed to various types of attacks, data theft/leakage is considered one of the vital attacks that may affect datacentres credibility. In this paper, a new technique is proposed to store the user's data in an encrypted form in the cloud datacentre via a third party encryption server. Therefore, the attackers and the datacentre authorities will be able to deal only with an encrypted form of the data. Furthermore, to decrypt the data, they need to know the encryption algorithm as well as the encryption key which is in turn placed on a third party encryption server. In addition, using third party encryption server (TPED) will lead to reducing the workload on both the cloud servers and the data owner's machine.