数字电视网络隐蔽信道技术研究  

Research on Covert Channels Based on Digital Television Network

作　　者：刘卫忠[1] 徐露[1] 吕江涛[1] 

机构地区：[1]华中科技大学电子与信息工程系,湖北武汉430074

出　　处：《电视技术》2013年第3期1-4,43,共5页Video Engineering

基　　金：华中科技大学自主创新基金项目(2012QN156)

摘　　要：目前针对隐蔽信道的研究工作大部分都基于互联网协议,在数字电视中实现隐蔽通信是信息隐藏技术的一个新方向。在隐蔽信道信息传递框架的基础上,阐明了数字电视网络中隐蔽信道存在的可能性和必然性。提出了基于TS包的填充域与PCR域保留位的信息隐藏方法,并实现仿真,然后对两种隐藏方案的性能进行了分析与比较。The existing covert channels typically focus on Internet protocol stack. Constructing covert channels based on Digital Television Network has not been studied before. Firstly, the possibility and inevitability of the covert channels in DVB Network on the foundation of the information transmission framework is demonstrated. Secondly. two kinds of covert channels based on the padding filed of the TS packet and the reserved bits of PCR are proposed and simulated respectively. Finally, the performances are evaluated and compared.

关 键 词：数字电视网络 信息隐藏 隐蔽信道 信息安全 

分 类 号：TN949.197[电子电信—信号与信息处理]