摘要
为解决某一种隐蔽信道检测算法只能检测某种特定的隐蔽信道而无法检测其它种类隐蔽信道的问题,分析了隐蔽信道的工作方式、数据特征,提出了基于密度聚类的隐蔽信道检测算法。该算法不但能够检测出不同种类的隐蔽信道,也可以检测出这些隐蔽信道合成的复杂隐蔽信道。构建了复杂隐蔽信道的仿真系统,并进行了隐蔽信道检测实验。检测结果表明:在噪声低于20%的环境中,该算法可以快速、准确地检测到复杂隐蔽信道。
To solve the problem that different kinds of covert channels can not be detected by a particular detection algorithm,the working mode and characters of covert channel were analyzed,and then the detection algorithm based on density cluster was proposed.The algorithm could find not only different kinds of single covert channels but also complicated covert channels which were composed of several kinds of covert channels.In the simulation system,a complicated covert channel composed by five kinds of covert channels was implemented.The algorithm was used to detect the complicated covert channel.The detection results show that the algorithm can work well even the noise in the channel was about 20%.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2012年第4期825-829,836,共6页
Journal of System Simulation
基金
国家自然科学基金(60974129,70931002)
江苏省自然科学基金(BK2009388)
关键词
计算机网络
网络安全
隐写
隐蔽信道
聚类
computer network
network security
steganography
covert channel
cluster
