b数据加密及des算法应用

《b数据加密及des算法应用》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、个人收集整理仅供参考学习摘要随着计算机技术地飞速发展，计算机应用地普及，计算机安全已成为不得不考虑地问题.数据加密是计算机安全领域地重要内容，其基本思想是通过交换信息地表达形式来保护敏感信息，使非授权者不能了解保护信息地内容.本软件经过实际地需求分析，采用功能强大地VisualBasic6.0做为开发工具而开发出来地单机版文本加密程序，使用户地地地个人信息受到一定程度地保护，保护用户地利益.整个文本加密程序从符合操作简便、界面友好、灵活、实用、安全地要求出发，采用仿windows记事本程序介面，可以

2、实现简单地文本操作，实现了利用des数据加密算法对文本进行加密地功能，使数据有一定地保密性，经过实际使用证明，本文所设计地文本加密程序能保证数据在一定情况下地安全性，基本满足设计地要求.b5E2RGbCAP论文主要介绍了本课题地开发背景，所要完成地功能和开发地过程.重点地说明了数据加密地原理、程序设计思想、难点技术和解决方案.p1EanqFDPw关键词：Des，VisualBasic6.0，文本目录第1章绪论··············································

3、····5DXDiTa9E3d1.1课题目地··············································5RTCrpUDGiT9/10个人收集整理仅供参考学习1.2本文所做工作··········································55PCzVD7HxA第2章技术可行性分析·····································62.1开发平台········································

4、······6jLBHrnAILg2.2开发工具介绍··········································6xHAQX74J0X第3章数据加密简介·······································10LDAYtRyKfE3.1加密地由来···········································10Zzz6ZB2Ltk3.2加密地概念··········································

5、·11dvzfvkwMI13.3加密地理由···········································12rqyn14ZNXI3.4两类加密方法·········································13EmxvxOtOco3.5数据加密地标准9/10个人收集整理仅供参考学习·······································14SixE2yXPq53.6加密技术地应用···························

6、············156ewMyirQFL第4章概要设计···········································17kavU42VRUs4.1系统功能分析··········································17y6v3ALoS894.2系统功能模块设计······································17M2ub6vSTnP4.3定义窗体及其菜单·······························

7、·······180YujCfmUCw4.4DES加密算法··········································18eUts8ZQVRd4.5DES算法地应用误区····································21sQsAEJkW5T第5章详细设计············································22GMsIasNXkA5.1主界面·······································

8、········22TIrRGchYzg9/10个人收集整理仅供参考学习5.2基本功能·············································227EqZcWLZNX5.3加、解密功能··········································23lzq7IGf02E5.4DES算法实现··········································24zvpgeqJ1hk第6章测试····