a practical covert channel identification approach in source code based on directed information flow graph

	a practical covert channel identification approach in source code based on directed information flow graph
	Wu JingZheng ; Ding Liping ; Wang Yongji ; Han Wei
	2011
会议名称	2011 5th International Conference on Secure Software Integration and Reliability Improvement, SSIRI 2011
会议日期	27-Jun-02
会议地点	Jeju Island, Korea, Republic of
关键词	Algorithms Building codes Computer operating systems Computer programming languages Graphic methods Software reliability
页码	98-107
英文摘要	Covert channel analysis is an important requirement when building secure information systems and identification is the most difficult task. Although some approaches were presented they are either experimental or constrained to some particular systems. This paper presents a practical approach based on directed information flow graph taking advantage of the source code analysis. The approach divides the whole system into serval independent modules and analyzes them respectively. All the shared variables and their caller functions are found out from the source codes and modeled into directed information flow graphs. When the information flow branches are visible and modifiable to the external interface a potential covert channel exists. Contributions made in this paper are as follows a modularized analysis scheme is proved and reduces the workloads of identifying a directed information flow graph algorithm is presented and used to model the covert channels more than 30 covert channels have been identified in Linux kernel source code using this scheme and a typical channel scenario is constructed. © 2011 IEEE.
收录类别	EI
会议主办者	Korea Software Engineering Society
会议录	Proceedings - 2011 5th International Conference on Secure Software Integration and Reliability Improvement, SSIRI 2011
会议录出版地	United States
ISBN号	9780769544533
内容类型	会议论文
源URL	[http://124.16.136.157/handle/311060/14377]
专题	软件研究所_互联网软件技术实验室 _会议论文
推荐引用方式 GB/T 7714	Wu JingZheng,Ding Liping,Wang Yongji,et al. a practical covert channel identification approach in source code based on directed information flow graph[C]. 见:2011 5th International Conference on Secure Software Integration and Reliability Improvement, SSIRI 2011. Jeju Island, Korea, Republic of. 27-Jun-02.