Research on security issues of privacy data under t he cloud

In the computing field, the cloud computing has bec ome one of the hottest topics , the development of which has been promoting the tremendous changes of the world of both computer and commerce. However, as the secu rity issues of the cloud computing highlighted increasin gly, it can not be ignored, especially the data sec urity and privacy protection under the cloud computing enviro nment. This paper introduces the conception and uni que characteristics of the cloud computing, and the sec urity issues and strategies under the virtual cloud environment, Furthermore, it proposes to build a single-line con nection between the virtual machine and the client by using the digital certificate technology with Elliptic Curves Cryptography, analyzes the mathematical principle of the Elliptic Curves Cryptography and describes the process of th e communication between the virtual machine and the client, so that people can achieve the protection and isolatio n of users’ privacy data under the cloud environmen t and the cloud computing technology can service users with m uch higher security.