Abstract: The design principle and realization method of embedded video encryption gateway applicable to videoconferencing system was introduced. Embedded video encryption gateway can encrypt video data and provide H.323 protocol proxy function, which make H.323 endpoints communicate securely through untrusted network. Embedded video encryption gateway adopts Trimedia PNX1300 chip and PSOS operating system. It has system-independent characteristics and can update current video conference systems conveniently.

摘要： 本文介绍了一种应用在视频会议系统中的嵌入式视频加密网关的设计原理和实现方法。嵌入式视频加密网关能对视频数据进行加密处理，并提供了H.323协议的代理服务功能，使得各H.323终端可通过不可信网络进行保密安全通信。嵌入式视频加密网关采用了Trimedia PNX1300多媒体处理芯片和pSOS操作系统,具有系统独立性，能方便地对现有视频会议系统进行升级。