视频加密算法及其发展现状  

Video Encryption and Its Development

作　　者：廉士国[1] 孙金生[1] 王执铨[1] 

机构地区：[1]南京理工大学自动化系,江苏南京210094

出　　处：《信息与控制》2004年第5期560-566,共7页Information and Control

基　　金：江苏省自然科学基金资助项目 (BK2 0 0 10 5 4);博士点基金资助项目 ( 2 0 0 2 0 2 880 2 5 )

摘　　要：根据加密算法中压缩过程和加密过程关系的不同 ,将算法分为三类进行综述 :直接加密算法、选择性加密算法和具有压缩编码功能的加密算法 .在分别分析了它们的安全性、计算复杂性和压缩比等特点的基础上 ,给出了它们各自适合的应用范围 ,并且对视频加密算法的未来作了展望 .In this paper, the encryption algorithms are divided into three types according to the relationship between compression and encryption: direct-encryption algorithm, selective-encryption algorithm and compression-encryption combined algorithm. Based on the analysis of the features of different algorithms such as security, computational complexity, compression ratio, and so on, their applications are presented respectively. The future of video encryption is forecasted at the end.

关 键 词：视频加密 多媒体加密 密码 视频编码 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]