Research And Implementation Of Cloud Storage Encryption File System

With the rapid development of the computer network,a large number of personal and enterprise data stored on the cloud,for the convenience of user access.Because the file owner cannot control the file that stored on the cloud server,making the security of the file becomes a challenge for the development of cloud storage.How to realize the only legitimate users can access files,how to give the user authorization,how to revoke a user's access to documents,all of those are hot research problems in practical application.This paper aims at the problem of implementation of secure cloud storage system,analysis of the cloud storage system security requirements,select the current mainstream technologies,and explore the problem of the realization of encryption and proxy re-encryption.By using UML analysis and design method,the requirement and design of each function module of the system are completed.Based on the analysis and comparison of different platforms,considering scalability,maintainability and security,J2EE as the technical architecture,MySQL as the database development tools,Eclipse development platform and HDFS file system are selected.A secure cloud storage file system is designed and implemented using the popular SSH framework tool.In the security architecture of the system,the use of proxy re-encryption to achieve a flexible user authorization and revocation of rights,to achieve a secure file access control and ensure the confidentiality of the document.