摘要
随着网络的不断普及和发展,视频数据在网络中有了越来越多的应用,随之也提出了视频安全的问题,通过视频加密可以很好地解决此问题。文中分析了目前主流的H.264SVC标准所采用的可分级视频编码技术,根据视频分级编码特点选取关键信息进行分层加密,实现不同级别的视频加密。同时,所提方案采用了序列密码进行加密,具有较高的安全性。试验结果表明:该方案具有安全性高、复杂度适中、实时性好等特点。
With the development of network and large-scale use of videos in the network, the security of videos becomes one of the important problems. Video encryption proves itself to be a good method this problem. This paper analyzes the scalable coding technologies adopted in H.264/SVC. According to the characteristics of the statable video coding（SVC）, some key information units are selected for encryption. And scalable video encryption is used to achieve different levels of video security. Meanwhile, stream cipher encryption is also used to achieve fairly high security. The experiments show that the proposed scheme is of high security, moderate complexity, and real-time performance.
出处
《信息安全与通信保密》
2012年第5期94-96,共3页
Information Security and Communications Privacy
