摘要
视频加密是数字版权管理常用的技术。提出一种基于国产密码SM4算法的视频加密方法,对经过编码的视频文件进行I帧数据提取,并运用SM4加密算法进行加密。该方法可以降低加密运算强度,达到保护视频版权的目的。
Video encryption is a common technology in digital rights management.This paper proposes a video encryption method based on the SM4 algorithm,which extracts I-frame data from the encoded video file and uses the SM4 encryption algorithm to encrypt.This method not only reduces the strength of the encryption operation,but also achieves the purpose of video copyright protection.
作者
王朝庆
贾立平
WANG Chaoqing;JIA Liping(Shandong Radio and Television Station,Jinan 250062,China;School of Software,Shandong University,Jinan 250101,China;Dazhong newspaper group,Jinan 250014,China)
出处
《电视技术》
2021年第7期111-113,共3页
Video Engineering
关键词
视频加密
I帧
对称加密
SM4算法
video encryption
I frame
symmetric encryption
SM4 algorithm
