improving performance of network covert timing channel through huffman coding

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	improving performance of network covert timing channel through huffman coding
	Jingzheng Wu ; Yongji Wang ; Liping Ding ; Xiaofeng Liao
刊名	Mathematical and Computer Modelling
	2011
卷号	55 期号:1-2 页码:69-79
关键词	Huffman coding Network covert channel Covert channel encoding Capacity Covertness Timing channel
ISSN号	0895-7177
中文摘要	Network covert channel is a mechanism used to transfer covert message violating security policies through network. Performance of a channel is crucial to an attacker. Some studies have improved the performance by advancing the coding mechanism, but few ones have taken account of the redundancy of covert message. This paper introduces Huffman coding scheme to compress the transferred data by exploiting redundancy, and investigates the performance of the network timing channel according to the channel capacity and covertness. A mathematical model of capacity is presented and the effects of the parameters are analyzed. The experiment examines how the network delays and the Huffman coding scheme affect the capacity and covertness, and the results demonstrate that the performance of the timing channel is improved.
英文摘要	Network covert channel is a mechanism used to transfer covert message violating security policies through network. Performance of a channel is crucial to an attacker. Some studies have improved the performance by advancing the coding mechanism, but few ones have taken account of the redundancy of covert message. This paper introduces Huffman coding scheme to compress the transferred data by exploiting redundancy, and investigates the performance of the network timing channel according to the channel capacity and covertness. A mathematical model of capacity is presented and the effects of the parameters are analyzed. The experiment examines how the network delays and the Huffman coding scheme affect the capacity and covertness, and the results demonstrate that the performance of the timing channel is improved.
学科主题	Computer Science ; Mathematics
收录类别	SCIENCEDIRECT ; EI
资助信息	863 project2007AA010601; Chinese Academy of SciencesKGCX2-YW-125; Chinese Academy of Sciences Institute of SoftwareYOCX285056
语种	英语
WOS记录号	WOS:000296919500009
公开日期	2013-10-08
内容类型	期刊论文
源URL	[http://ir.iscas.ac.cn/handle/311060/16023]
专题	软件研究所_软件所图书馆_期刊论文
推荐引用方式 GB/T 7714	Jingzheng Wu,Yongji Wang,Liping Ding,et al. improving performance of network covert timing channel through huffman coding[J]. Mathematical and Computer Modelling,2011,55(1-2):69-79.
APA	Jingzheng Wu,Yongji Wang,Liping Ding,&Xiaofeng Liao.(2011).improving performance of network covert timing channel through huffman coding.Mathematical and Computer Modelling,55(1-2),69-79.
MLA	Jingzheng Wu,et al."improving performance of network covert timing channel through huffman coding".Mathematical and Computer Modelling 55.1-2(2011):69-79.