Research On The Hdfs-Based Cloud Storage Access Network System

With the development of information technology and the rapid growth of the amount of global data, cloud storage has gradually developed into a new generation of storage. However when users use cloud storage service, they are still worried about their personal data privacy to a certain extent, impeding the popularization and promotion of cloud storage.Based on the investigation of the current situation of the development of cloud storage and user privacy protection, with the help of stable HDFS, symmetric encryption algorithm and message digest technology, a HDFS-based cloud storage access network system has been designed making enterprise users could protect their data privacy independently. This paper presents the system design objectives and principles, overall structure, hierarchical structure, module structure and function design, then realize the major function of the system including user management, document management and log management. In the process of system implementation, this paper integrates HDFS and cloud storage API into J2EE programming framework effectively, and uses the mainstream symmetric encryption and message digest algorithm to ensure users’data confidentiality and integrity. Finally, in the current environment, a series of tests has been done including user access control, file access control, file transparent encryption/decryption, file upload/download speed and pressure test of multi-user concurrent operation.As can be seen from the final results, the access network system has basically completed the designed goal, and is able to effectively protect the user’s data privacy, and makes enterprise users can easily manage and safely use cloud storage services via the access network system, solves the problem of user data privacy protection from the users’ point of view.