计算机网络安全毕业论文

网络安全

摘要:计算机网络安全问题，直接关系到一个国家的政治、军事、经济等领域的安全和稳定。目前黑客猖獗，平均每18秒钟世界上就有一次黑客事件发生。因此，提高对网络安全重要性的认识，增强防范意识，强化防范措施，是保证信息产业持续稳定发展的重要保证和前提条件。

文中首先论述了信息网络安全内涵发生的根本变化，阐述了我国发展民族信息安全体系的重要性及建立有中国特色的网络安全体系的必要性，以及网络的安全管理。进一步阐述了网络拓扑结构的安全设计，包括对网络拓扑结构的分析和对网络安全的浅析。然后具体讲述了网络防火墙安全技术的分类及其主要技术特征，防火墙部署原则，并从防火墙部署的位置详细阐述了防火墙的选择标准。同时就信息交换加密技术的分类及RSA算法作了简要的分析，论述了其安全体系的构成。最后分析网络安全技术的研究现状和动向。

关键词：网络安全，防火墙，RSA算法

Abstract

Zhu Yi

(The Computer Department Of Liuan Normal University,Wuhu Liuan 241000) Abstract:The computer network security problem, directly relates to domain the and so on a national politics, military, economy security and the stability. At present the hacker is rampant, in the average every 18seconds worlds has a time of hacker attack to occur. Therefore, enhances to the network security important understanding, enhancement guard consciousness, the strengthened guard measure, is guaranteed the information industries continues the important guarantee and the prerequisite which stably develops.

In the article first elaborated the radical change which the information network security connotation occurs, elaborated our country develops the nationality information security system importance and the establishment has the Chinese characteristic the network security system necessity, as well as network safety control. Further elaborated the network topology safe design, including to network topology analysis and to network security brief analysis. Then specifically narrated the network firewall security technology classification and it’s the main technical characteristic, the firewall deployment principle, and the position which deployed from the firewall in detail elaborated the firewall choice standard. Meanwhile has made the brief analysis on the exchange of information encryption technology classification and the RSA algorithm, elaborated its security system constitution. Finally analyzes the network security technology the research present situation and the trend.

Key words:Network security，firewall，RSA algorithm

目录

网络安全 (1)

目录 (3)

第一章引言 (5)

1.1 概述 (5)

1.2 网络安全技术的研究目的、意义和背景 (6)

1.3 计算机网络安全的含义 (6)

第二章网络安全初步分析 (8)

2.1 网络安全的必要 (8)

2.2 网络的安全管理 (8)

2.2.1 安全管理原则 (8)

2.2.2 安全管理的实现 (9)

2.3 采用先进的技术和产品 (9)

2.3.1 防火墙技术 (9)

2.3.2 数据加密技术 (9)

2.3.3 认证技术 (10)

2.3.4 计算机病毒的防范 (10)

2.4 常见的网络攻击及防范对策 (10)

2.4.1 特洛伊木马 (10)

2.4.4 淹没攻击 (12)

第三章网络拓扑结构的安全设计 (13)

3.1 网络拓扑结构分析 (13)

3.2 网络攻击浅析 (14)

第四章防火墙技术 (16)

4.1 防火墙的定义和由来 (16)

4.2 防火墙的选择 (17)