Abstract
Enhancement of security and privacy in mobile data centers is challengeable with efficient security key management. In order to solve this problem, data centers need efficient quantum cryptography using Grover's algorithm and authentication technique which are appropriate approaches to enhance the security and privacy with less complexity. In this research, quantum cryptography with the Pair Hand protocol seems to be a better approach. In future, light which has same quantum properties will be the best approach because people can see only the light not the data. So, light based on quantum cryptography and Pair Hand protocols will be the best for this research. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).