%0 Journal Article
%T Quality Analysis of Several Typical MPEG Video Encryption Algorithms<br>几种典型视频加密算法的性能评价
%A LIAN Shi guo
%A SUN Jin sheng
%A Wang Zhi quan
%A <br>廉士国
%A 孙金生
%A 王执铨
%J 中国图象图形学报
%D 2004
%I 
%X Video encryption is a suitable method to protect video data. In this paper, the existed MPEG video encryption algorithms are classified into four types according to the relationship between encryption process and compression process. They are complete encryption algorithm, partial encryption algorithm, DCT coefficient encryption algorithm and entropy encoding encryption algorithm. Each of them is evaluated from the four aspects: security, compression ratio, computing complexity and operationality. Theoretical analyses and experimental results are presented to compare these algorithms. And their application fields are given, which are consistent with their properties. According to the development direction of video application, the encryption algorithms combining with encoding process will be studied deeply in the future, such as DCT coefficient encryption algorithm, entropy encoding encryption algorithm or novel algorithm combining with error correcting code and so on.
%K video encryption
%K MPEG encoding
%K cryptography
%K information security
%K cryptanalysis<br>视频加密算法
%K 性能评价
%K MPEG编码
%K 密码
%K 信息安全
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=1BF8DEB2982D32F8&yid=D0E58B75BFD8E51C&vid=9CF7A0430CBB2DFD&iid=E158A972A605785F&sid=07C6E4664BB7C5DA&eid=D397660E39E3E461&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=14&reference_num=18