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一种基于FMO置乱的视频加密算法研究
引用本文:唐峰,蔡勉,闫磊,李燕.一种基于FMO置乱的视频加密算法研究[J].通信技术,2009,42(10):52-53.
作者姓名:唐峰  蔡勉  闫磊  李燕
作者单位:北京工业大学电子信息与控制工程学院,北京,100022
摘    要:通过分析H.264提出的灵活宏块排序(FMO)的特点,提出了一种随机置乱FMO—map的视频加密方案。此方案通过产生一个随机顺序的码表来置乱FMO—map来达到视频流加密的效果,另外将加密后的随机置乱码表并行输出。通过分析证明此方案在安全性、压缩比改变率和计算复杂度方面都具有良好的性能,能使视频图像的传输具有较好的安全性和实时性。

关 键 词:H.264  视频加密  灵活宏块排序

Video Encryption Algorithm Based on FMO Scrambling
TANG Feng,CAI Mian,YAN Lei,LI Yan.Video Encryption Algorithm Based on FMO Scrambling[J].Communications Technology,2009,42(10):52-53.
Authors:TANG Feng  CAI Mian  YAN Lei  LI Yan
Affiliation:(School of Electronics Information & Control Engineering Beijing University of Technology, Beijing 100124, China)
Abstract:Based on analysis of the flexible macroblock ordering provided by H. 264, a video encryption algorithm of random scrambling FMO map is proposed. This scheme, through producing a code of random sequence, scrambles FMO-map and thus achieves the encryption of video stream. And then parallel output of the encrypted randomly-scrambled code is implemented. The analysis indicates that this scheme is of good performance in security, compression ratio and computational complexity, and could realize secure and real-time transmission of video images.
Keywords:H  264
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