基于ON/OFF算法的网络时间隐蔽信道的设计与实现

摘要随着计算机网络在各个领域的广泛应用，由互联网与生俱来的开放性、交互性、资源共享等特点带来的网络安全问题也日益严重。隐通道作为混合攻击的一种手段对网络安全产生了巨大威胁。通过对隐通道机制的分析和研究，有助于更好的了解网络攻击方式的内在机制，从而在技术上实现预防网络的入侵攻击，减少网络威胁带来的危害；此外，网络隐通道也是评估入侵检测系统和防火墙系统安全性能的重要手段。根据美国国防部TCSEC标准，开发B2级以上的安全系统时需要进行隐通道分析。基于ON/OFF算法的网络时间隐通道的设计与实现就是在这样的背景下展开的。
摘要本毕业论文在介绍隐通道技术及目前发展状况的基础上，首先介绍了ON/OFF算法的原理，并且分析设计了ON/OFF算法在隐通道的设计上的实现方法。本文将程序分为客户端和服务器端两个模块，具体分析了两个模块的实现方法和功能作用。9730
关键词互联网隐通道入侵检测 ON/OFF算法毕业设计说明书（论文）外文摘要
Title    The Design and Implementation of the Covert Timing
           Channel Based on the ON/OFF Algorithm
Abstract
With the computer network extensive in many fields,network security
becomes more and more serious because of openness,interaction and recourse
sharing of the Internet.Covert channels as a means of mixed attack brings great threats to network security.It helps us to better understand the inner mechanism of network attack mode by studying and analyzing the mechanism of covert channel，So as to reduce the harm that the network intrusion will bring．In addition,network covert channel is also the important means to evaluate the intrusion detection system and the safety performance of firewall means to evaluate the intrusion detection system and the safety performance of firewall system．According to TCSEC standard of the U.S．defense department，analyze to covert channel is needed when developping security system above of B2．The research based on multi-layer protocol is as follows．
Based on the introduction of technology and current development of covert channel，first introduced the mechanism of the ON / OFF algorithm, and the analysis and design method of the ON / OFF algorithm in the design of the covert channel. The program is pided into two modules of the client and server side, a detailed analysis of the implementation and function of the two modules.
Key words: Internet, Covert channel,Intrusion detection,ON / OFF algorithm
目次
1.   绪论   1
1.1   课题研究背景和意义   1
1.2   国内外研究现状   1
1.3   本文主要研究内容   3
2.   相关技术介绍   4
2.1   隐通道技术   4
2.2   SOCKET编程技术   6
2.3   Microsoft Visual Studio 2010   7
2.4 MFC的消息响应机制   8
3.   ON/OFF算法的机制   13
3.1   算法概述   13
3.2   实现方法   13
3.3   可行性分析   13
4.   基于ON/OFF算法的隐通道的总体设计   15
4.1   系统的设计原则   15
4.2   系统的结构设计   15
5.   基于ON/OFF算法的隐通道程序实现   18 基于ON/OFF算法的网络时间隐蔽信道的设计与实现:http://www.youerw.com/jisuanji/lunwen_8539.html