Categorying and identifying with covert channel based on information flow analysis
基于信息流分析的隐蔽通道分类与标志

Based on the secureity OS(SLinux) designing and implementing, this paper adopted information flow sequence to represent information flows and covert channels. Categorized the covert channels according to their information flow characteristics and discussed the integral method of dealing with covert channel. On this basis, proposed a general framework for covert channel identification founded on information flow analysis, and designed the optimization rules of covert channel identification. The framework and the rules can decrease the illegal flow of misinformation by restricting information flow combination spread, and provide the basis process for improving of anglicizing covert channel.