【摘要】 早期H.320视频会议系统所提供的加密技术已不能满足当今社会的安全需求。本文基于DDN通信网络,提出了一种H.320视频会议加密系统。在通信线路上采用了比特流加密技术,使得加密的多媒体信息具有很强的保密性;密钥通过IP网络进行传输,结合智能卡技术,保证了实时性和安全性。更多还原

【Abstract】 The encrpytion techniques of early videoconferencing system based on H.320 protocol can not satisfy requirement of security in modern society. This paper presents a new encryption system of H.320 videoconference on DDN network. By using bits-stream encryption technique in communication circuit, the encrypted multimedia information will have strong security. Transported by IP network, combining with smart card, the key can get real-time and security.更多还原