Detecion Approach for Covert Channel Based on Concurrency Conflict Interval Time

Wang Yongji; Wu Jingzheng; Ding Liping; Zeng Haitao

Journal of Computer Research and Development > 2011 > 48(8): 1542-1553.

Wang Yongji, Wu Jingzheng, Ding Liping, Zeng Haitao. Detecion Approach for Covert Channel Based on Concurrency Conflict Interval Time[J]. Journal of Computer Research and Development, 2011, 48(8): 1542-1553.

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Detecion Approach for Covert Channel Based on Concurrency Conflict Interval Time

1(National Engineering Research Center for Fundamental Software (Institute of Software, Chinese Academy of Sciences), Beijing 100190) 2(State Key Laboratory of Computer Science (Institute of Software, Chinese Academy of Sciences), Beijing 100190) 3(Graduate University of Chinese Academy of Sciences, Beijing 100049) 4(China Mobile Research Institute, Beijing 100053)

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Published Date: August 14, 2011

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Abstract

Abstract

Concurrency conflicts may bring data conflict covert channel in multilevel secure systems. The existing covert channel detection methods have the following flaws: 1) Analyzing conflict records with single point, so the invaders can evade to be detected; 2) Using single indicator will bring false positive and false negative. We present a detection method based on conflict interval time called CTIBDA in this paper. This method solves the above problems: 1) Analyzing the conflict records with subject and object can prevent intruders from dispersing; 2) Using both the distribution and the sequence of intervals between transactions conflicts as indicators. The experimental results show that this approach can reduce the false positive and false negative and increase the accuracy. CTIBDA is suitable for online implementation and can be universally applied to concurrency conflict covert channels in other scenarios.
- multilevel secure,
- concurrency control,
- covert channel,
- covert timing channel,
- covert channel detection

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