基于H.264的新型视频加密算法  

A new video encryption algorithm based on H.264 standard

作　　者：林巍峣[1] 方向忠[1] 黄修超[1] 

机构地区：[1]上海交通大学图像通信和信息处理研究所,上海200030

出　　处：《信息安全与通信保密》2005年第9期89-94,共6页Information Security and Communications Privacy

摘　　要：本文提出了一种新的基于H.264标准的视频加密算法结构。使用改进的FMO机制(advanced-FMO mechanism)将具有相关性的宏块打入不同的Slice中,通过对FMO子图的加密达到对整个视频内容进行加密的目的。本文提出的加密算法具有很高的实时性,加密过程可以和编码过程并行执行。同时本算法还可以和传统的加扰算法结合,进一步提高视频的加密效果。A new video encryption algorithm based on H.264 was proposed in this paper. The algorithm makes use of the advanced-FMO mechanism to put correlated Macroblocks into different Slices. The video sequence can then be encrypted by encrypting the FMO-map. The proposed approach is simple and has real-time feature. The encryption process can work simultaneously with the video coding process. The algorithm can also be combined with traditional video scrambling approaches to get better encryption performance.

关 键 词：H.264 视频加密 FMO H.264标准 加密算法 视频内容 SLICE 算法结构 并行执行 编码过程 

分 类 号：TN915.08[电子电信—通信与信息系统]