The Research On Users’ Privacy And Protection Method In Cloud Computing

With the development of global science and technology, the coming age of big data, a lot of industries have to face the challenges such as the requirement of high performance computing, high expansibility of system platform and more safety in communication. The appearance of cloud computing could solve the problems. Cloud computing is based on clusters. It takes good use of storage and computing ability to make the communication more safety. Furthermore, it could reduce the cost of using computers. Cloud computing is viewed as another revolution in scientific communityHowever, the cloud computing has its own drawbacks and it will also endanger the cloud platforms. This article will discuss the challenges and safety problems of cloud computing in some specific areas. We will research the users’ pravacy problems and then propose a new method as to combine the homomorphic encryption and the CP-ABE encryption in order to protect the users’ privacies.At first, the users will send its own information to the cloud computing provider and the information will be classified. Then, the cloud computing provider will provide different encryption method to each classification as the homomorphic encryption and the CP-ABE encryption. The user can use the homomorphic encryption to protect the important information as to make it can hardly be leaked or stolen, and the user can make math operations directly on the encrypted messages. The CP-ABE encryption is used to share some information or Internet resources with other users in the cloud, it will provide identity authentication. At last, the visitors can download the encrypted message to match its attributions. If the attributions can be matched successfully, the visitors can visit the privacy information correctly. Through the way of hybrid encryption, the users could protect their privacy messages more safely and it is more convenient for them to do some math operations.Moreover, the efficiency of encryption and decryption is also improved in the experiments.