VC++基于DES加密算法的WORD加密插件的实现(源代码+论文).rar

分类号: U D C:D10621-408-(2007)6190-0
密级:公开编号:2003031248
成都信息工程学院
学位论文
基于DES加密算法的WORD加密插件的实现
论文作者姓名:
张杰
申请学位专业:
网络工程
申请学位类别:
工学学士
指导教师姓名(职称):
王燚(副教授)
论文提交日期:
2007年07月25日
基于DES加密算法的WORD加密插件的实现
摘要
随着社会发展,社会进入信息时代。信息技术和信息产业正在改变传统的生产﹑经营和生活方式,信息已成为社会发展的重要战略资源。如今,Office办公文档已是日常办公生活中不可缺少的一部分,与此同时伴随而来的信息安全问题也日益突出。如何确保Word文档中的内容不被未授权的第三方所知,防止重要信息被随意改动,成为当务之急。如果在Word工具栏中添加一个加密插件,可以对文档全部内容或部分内容加密,便能有效防止信息泄漏。
本论文采用VB编写Word插件,通过采用Windows下的动态链接库技术(DLL),在VC中把DES算法封装起来做成DLL模块供VB调用,实现了开发加密插件时对加密函数的调用,提高了加密算法的效率。通过使用该插件在Word中添加的工具按键,便能简单有效地对文档内容加解密,使用户在操作WORD文档时更加方便安全。
关键词:加密插件;组件;动态链接库
The Implementation of a Word Adding for Encryption Based on DES Encryption Algorithm
Abstract
With the development of the society, we are entering the information times. The traditional method of the product, the management and our life style are changed by the information technology and the information industries. The information has e the important strategic resources for the society development. Now, the Office documents have already e an essential part in people’s daily work, followed with this, the question of information security es critical day by day at the same time. How to prevent the content in the Word documents from being known or modified by the unauthorized third party has e an urgent issue. If we can add an encryption plug-in into the word toolbar, which is able to encrypt all or part of the Word document, the information leaking could be prevented efficiently.
The Word adding introduced in this paper is developed with VB, which calls the encryption and decryption functions in a Dynamic Link Library (DLL) that is developed with VC to enhance the efficiency of the encryption algorithm. By using this adding, users can encrypt or decrypt word document locally without leaving the Word.
Key words: Encryption plug-in unit; Information security; COM module; DLL
目录
论文总页数:20页
1 引言 1
1
1
2理论基础 2
DES算法描述 2
DES算法框图 2
DES解密 3
2