摘要
视频加密对于保护视频数据的安全具有重要作用,尤其在军事通信领域。通过分析现有的MPEG加密算法,给出了一种适用于空中无人平台的加密算法。此算法仅加密DC码字、AC系数符号位和运动矢量MV符号位,加密的数据量小,具有比较高的安全性。
Video encryption is a suitable method to protect video data, especially in the area of military communication. Through analysising the MPEG encryption algorithms that are present now, we propose a video encryption algorithm which is suitable to the air unmanned information platform. This algorithm only encrypts DC code, signs of AC coefficients and signs of motion vectors MV. It encrypts little data and has higher security.
出处
《微计算机信息》
北大核心
2008年第15期79-80,136,共3页
Control & Automation
基金
军队科研基金(编号不公开)
