摘要： 针对AVS的编码结构，提出一种基于混沌理论的AVS视频加密算法，并集成到AVS编/解码器中。该算法采用实值混沌序列加密和置乱DCT非零系数来加密视频信息。采用3个标准视频序列进行算法仿真，在为AVS编写的rm52j软件平台上进行实验，结果表明，该算法加密速度快，安全性高，对压缩比影响较少。

关键词: 混沌, 加密, 视频压缩

Abstract: An approach of utilizing the chaos to Audio Video coding Standard(AVS) encoded frame is proposed, and it is integrated into the AVS CODEC. This algorithm encrypts DCT nonzero coefficients by using real-value chaotic sequence and then confuses DCT nonzero coefficients. Conducts simulate on three standard video sequence. Simulation results are tested on rm52j software platform, which indicates this algorithm is fast at encrypting data, good at security and affects little to compression.

Key words: chaos, encryption, video compression

中图分类号: 

• TP309