毕业设计论文-外发加密文件管理平台 .doc

编号 论文 题目： 学院专业 学 号 学生姓名 指导教师 二〇一 年月 摘要 ABSTRACT The files that were sent out are always out of the sender’s control, they could be easily spread out without the owner’s awareness. Such confidential files like customer’s information, SOW or Contract, financial data and design documents etc. should be carefully protected. The OFEM (Out File Encrypted Management) system could resolve this problem by the constraining the reading permission of the files which were sent out. This article consist the design on the management platform and service of OFEM system. OFEM system have two role: Administrators and Users. Administrators is responsible to maintain and customize the system: Home page configuration, menu management, notice editing and publishing, database tuning and backup, system patches etc. Administrators also could maintain the permission for each role and users, refill user’s account and view the consumption history. There are two kind of users: individual users and enterprise users. User could choose to be charged per month or per file. Users could manage and review the files they sent out: view files usage, change file security policy, deposit their account and view consumption history. OFEM system integrate the user interfaces and server’s encryption together seamlessly to help the users, especially enterprise users, to protect files that contains their confidential data. Keywords: encryption; seamlessly; security; confidential  目 录 第1章 绪论 1 1.1 市场意义 1 1.1.1 国内市场意义 1 1.1.2 国外市场意义 1 1.2 目的 1 1.3 主要解决问题 1 1.4 主要技术 1 第2章 系统需求分析 3 2.1 系统应用图 3 2.2 需求目标 3 2.3 系统流程图 4 2.4 功能模块设计 4 2.5 技术难点预估 5 第3章 系统详细设计 3.1 设计规定 7 3.2 系统E-R图 7 3.3 功能说明 8 3.3.1管理员功能说明 8 3.3.2 用户功能说明 8 3.4 数据库关系图 9 3.5 输入/输出项 9 3.5.1 用户表 [T_User] 9 3.5.2 计费表[T_Charge] 10 3.5.3 充值消费记录表[T_Recharge] 11 3.5.4 文件外发表[T_FileOut] 11 3.5.5 文件操作