浅析网络隐蔽信道的原理与阻断技术

On Working Principles and Blocking Technology of Network Convert Channel

隐蔽信道可以在不违反系统安全策略的情况下进行信息泄露,该文解释了网络隐蔽信道的概念,介绍了网络隐蔽信道的分类和一般工作原理。然后,针对计算机网络各层次分别介绍了常见的隐蔽通道,并对各种隐蔽通道的工作原理和实现方法做了详细的分析,在此基础上给出了一些检测和阻断网络隐蔽信道的方法和思路。

Information leakage may happen through a network convert channel without violating system security policy. The pa-per first illustrates the concept of network convert channel, its categories and the general working principle. Then, it introduces some common channels on the basis of different network layers and gives a detailed analysis of their working principles and meth-ods of implementation. At last, it explores some ways to detect and block the network convert channel.