基于文件过滤驱动的Windows文件保护系统的研究与实现-计算机应用技术专业论文.docx

第 第 II 页 Research and Implemention of Windows Files protection Based on File-Filter Abstract With the computer technology and the rapid development of network technology, as well as large enterprises, public utilities and other units have internally the various operational systems, service system, the establishment of rapid growth in the number of public documents. Many of these documents are classified documents, and these classified documents are often stored in a scattered manner across the enterprise backbone technology or business employees computer. Because some staff safety awareness to prevent weak or weak, leading to the classified files directly maliciously staff faced internal security threats. At the beginning of the thesis introduces status of file-protection and file encryption, analysis advantages and disadvantages of file-hiding technologies, and designs a mean of file-protection based on Windows file system filter driver technology. This mean can effectively improve the documentation and data security. There was close relationship between file system filter-driver and operating system. Papers analyzed components on the Windows system, and focused on the Windows filter driver technology, the same time, in order to achieve encryption file protection system, designed a set of encryption scheme, the final papers to the out the filter driver based on a hidden system file protection function modules to achieve, transparent encryption to achieve, as well as the overall design. Keywords：File Hide, Filter Drivers, File Encryption, File Protection 第 第 PAGE IV 页 目 录 摘 要I ABSTRACT II 目 录III 第一章 绪 论 1 1.1 课题背景与研究意义 1 1.2 国内外的研究现状 2 1.3 研究内容及目标 3 1.3.1 文件加密技术 3 1.3.2 Windows 文件隐藏技术 4 1.4 论文的组织结构 5 HYPERLINK \l _TOC_250000 第二章 WINDOWS 文件保护技术 6 2.1 文件保护的概念 6 2.1.1 计算机信息安全概述 6 2.1.2 信息安全中的信息泄密 7 2.1.3 文件泄密的主要途径 7 2.2 文件保护的技术 8 2.2.1 文件隐藏信息方法 8 2.2.2 文件加密方法 9 2.2.3 删除隐患方法 10 2.2.4 访问控制方法11 2.2.5 防火墙技术11 2.2.6 文件集中安全存储 12 EFS 12 EFS 工作原理