improving performance of network covert timing channel through huffman coding

ISCAS OpenIR

	improving performance of network covert timing channel through huffman coding
	Jingzheng Wu; Yongji Wang; Liping Ding; Xiaofeng Liao
	2011
发表期刊	Mathematical and Computer Modelling
ISSN	0895-7177
卷号	55 期号:1-2 页码:69-79
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.; 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.
收录类别	SCIENCEDIRECT ; EI
关键词	Huffman Coding Network Covert Channel Covert Channel Encoding Capacity Covertness Timing Channel
部门归属	aNational Engineering Research Center for Fundamental Software Institute of Software The Chinese Academy of Science Beijing 100190 China; bGraduate School The Chinese Academy of Science The Chinese Academy of Science Beijing 100190 China; cState Key Laboratory of Computer Science Institute of Software The Chinese Academy of Science Beijing 100190 China
学科领域	Computer Science ; Mathematics
资助者	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
引用统计
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/16023
专题	中国科学院软件研究所
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.