适用于付费数字电视的视频加密方案  

Video Encryption Scheme for Digital Fee TV

作　　者：姜德雷[1] 柏森[1,2] 朱桂斌[1] 董文明[1] 

机构地区：[1]重庆通信学院,重庆400035 [2]重庆大学计算机学院,重庆400044

出　　处：《电视技术》2009年第3期12-14,共3页Video Engineering

基　　金：重庆市自然基金项目(CSTC;2008BA0018)

摘　　要：将广义骑士巡游与视频加密相结合,提出了一种新的视频加密方案。将原始视频每8帧划分为一个视频片断,把各个视频片断按照帧平面分解为三维空间的广义棋盘,并提出4种方案,通过骑士的跳动置乱加密视频片断,从而达到视频加密的目的。实验结果表明,该方案加密效果好,加密效率高。而且,加密视频视觉质量可控性强,满足安全性要求,在付费数字电视节目播放等方面上具有广阔的应用前景。In this paper, generalized Knightj s Tour Problem（KTP） is combined with video encryption, and a novel video encryption scheme is proposed. The original video is divided into segments per 8 frames, then every segment can be looked into generalized chessboard in three-dimensional space in the manner of frame planes. Video segments are encrypted by knights s tour between frames, so 4 schemes are given. Simulation experiments shows that it has perfect encryption effects and good encryption efficiency. In addition, it is easy to control the encrypted video＇ s visual quality and satisfy security requirements, so it has a bright application future in the field of digital fee TV program playing and so on.

关 键 词：付费数字电视 视频加密 广义骑士巡游问题 

分 类 号：TN948.64[电子电信—信号与信息处理]