Research and implementation of cloud backup system supporting multilevel privacy protection

Research and implementation of cloud backup system supporting multilevel privacy protection

Sichuan Normal University Yewei

The arrival of the big data age makes the existing information system have insufficient storage capacity, with inadequate resource utilization, large it facilities, and complex systems management, more and more enterprises, organizations and individuals rely on networked storage and network computing to reduce their cost of maintaining various facilities, and cloud computing and cloud storage are the products of this situation. Cloud Backup enables data to be backed up on the network through cloud storage, making backup data more secure and Cross-platform managed. However, cloud backup is a double-edged sword, while using it to benefit, data privacy and security issues are the most concern of cloud users and potential users. How to ensure the privacy and security of data is one of the key problems to be solved in the process of data deposit and storage in cloud. At present, many businesses have launched cloud backup software, which can be the user data in the cloud for a full backup, but in the protection of data privacy performance is not satisfactory, the user privacy leakage accidents occur. In addition, different users of data privacy protection requirements are not the same, but currently does not have a cloud backup software can meet the different needs of different users, therefore, the development of a level to meet different users of the privacy protection needs of the cloud backup software has important practical significance. To solve the two problems described earlier, this paper first studies the privacy protection method of the data in the public cloud, then analyzes the cloud backup demand of different users, solves the problems of multilevel privacy protection Scheme design, data segmentation and data encryption, and designs and implements a cloud backup system that supports multilevel privacy protection. By introducing chaos sequence to solve the problem of key management, the paper constructs a trusted private cloud data processing module based on Hadoop, utilizes the efficient processing ability of cloud computing, improves the efficiency of data processing, and liberates the local computer from the task of data processing. In this paper, the key technology and scheme are described in detail, the design and implementation of the system are given, and the effectiveness of the system is validated by simulation experiment.

Research and implementation of cloud backup system supporting multilevel privacy protection