网络加密技术的研究 毕业论文x.docxVIP

[网络加密技术的研究] 学生姓名： XXXXXXXXXXX 学生学号： XXXXXXXXXXXXX 院（系）： 工程技术学院 年级专业：2009级计算机信息管理 指导教师： XXXXXXX XXXXXX 二〇一二年六月 PAGE I 摘 要 随着网络技术的发展， Internet技术的日趋成熟，人们接受信息的方式随之改变，从以前的纸质文档变成了现在的互联网信息传递。由此而来的互联网信息交互技术给人们的学习、工作和生活等带来了便捷和好处，但是在进行信息交互的同时，互联网中存在的安全问题也变得日趋严重，病毒、黑客程序、邮件炸弹、远程侦听等诸多网络攻击手段无不让人胆战心惊。特别是在一些商业，科研，国防等机构中，涉及到非常多的机密资料，这就使得保障网络安全的技术发展显得尤为重要。 但是由于目前的计算机网络存在开放性与共享性，以及网络系统的复杂性、边界和路径的不确定性等问题，使得网络通讯中很容易就受到外界的攻击和破坏，同样也使众多的机密数据的必威体育官网网址性受到了严重影响。因此，就需要采取一定安全措施保护网络中的信息数据，其中网络加密技术是网络中最基本的安全技术，这是一种主动安全防御策略，可以用很小的代价即可为信息提供相当大的安全保护，这就使得网络加密技术就显得尤为的重要。 关键词 网络安全，网络加密技术，数字签名，密钥，网络加密技术应用  PAGE II ABSTRACT With the development of network technology, Internet technology is mature with each passing day, people accept the way information is changed, from a previous paper documents have now become the Internet information transmission. The resulting Internet information interactive technology to peoples study, work and life has brought convenience and benefits, but in exchange information at the same time, the Internet safety problems have become increasingly serious, virus, hacker program, a mail bomb, remote sense and other network attacks means all make people tremble with fear in ones boots. Especially in some commercial, scientific research, national defense and other institutions, to involve very many confidential information, which makes the network security technology development is very important. But due to the current computer network openness and sharing, as well as network system complexity, boundary and the path of the uncertainty problems in network communication, so easily by external attack and damage, and also that many of the confidentiality of confidential data has been seriously affected. Therefore, it needs to take measures to protect the network security information in the data, wherein the network encryption technology in the network is the most basic security technology, it is a kind of active security defense strategy, can b