中文摘要：

随着云计算技术的日益发展,国内外出现了很多网盘服务,向用户提供文档的存储、访问、备份、共享等功能。但目前网盘仍存在安全性差、分享策略不够灵活、缺少文档协作通信机制等缺点。文章针对以上问题,设计并实现了基于IBE机制的云文档安全存储管理系统,该系统能够加强用户分享安全性,具有提供在线协作处理等功能。系统采用IBE机制解决了现有PKI机制中证书管理繁琐及私钥发放安全等问题,实现了用户文档的可信分享及安全存储。同时,利用PDF渲染实现文档的快速浏览,提升用户体验,并且采用Web Socket通信机制实现文档在各个用户间的协同工作,极大提高了工作效率。通过测试发现,系统在功能、安全性及效率方面都能满足现有市场需求。

英文摘要：

With the development of cloud computing technology, there are many services of network disks at home and abroad. They provide file storage, access, backup, sharing and other functions of file management to users. But at the moment, there are many problems in the network disk, such as poor security, inflexible sharing strategy, the lack of documentation and collaborative communication mechanism. In view of the above problems, this paper designed and implemented a cloud document secure storage management system based on IBE mechanism, which can enhance the security of users and provide online collaborative processing and other functions. The system adopts IBE mechanism to solve the tedious certificate management and private key secure distribution problems existing in PKI mechanism. It achieves the user documentation for the trusted share and secure storage. At the same time, the system enhance the user experience and realize the documents in each user cooperative work by rendering the PDF document browsing and the WebSocket communication mechanism, and greatly improving the work efficiency. Through the test, the system can meet the needs of the existing market in terms of fimctionality, security and efficiency.