基于VoIP流媒体的保密通信系统研究

Research on Secret Communication System Based on VoIP

Internet网络环境的复杂性和安全体系的脆弱性使得VoIP的信息传输安全问题日益严峻。信息隐藏技术以VoIP中流媒体通话语音为载体传输机密信息,是保证网络信息传输安全的一种重要手段。在分析VoIP工作原理、协议体系和语音编码格式的基础上,对当前实现VoIP保密通信的主要信息隐藏方法进行系统性的综述,重点论述了基于通信协议的信息隐藏方法和基于载体语音的信息隐藏方法的隐藏原理及各自特点。

Analyzing the working principle of VoIP,protocol architecture and speech coding format,elaborating the existing information hiding methods related to VoIP secret communication systematically,discussing the basic principle and characteristics of information hiding method based on protocol information hiding method and speech coding information hiding method,the secure communication transmission model is established based on VoIP.