Perceptual MPEG-4 video encryption and its usage in video-on demand systems
Shiguo Lian, Dengpan Ye, Jinsheng Sun, Zhiquan Wang · 2005
algorithm is proposed,fkr MPEG4 encoded videos. The algaru,.itlim enoyts MPEG4 stream seledivelv arid progrecsivels under the control oJqr~ulIr?, farttir. Bared on the encryption algorithm. a smitre video-oil-demand svstem is lmsented. Tlieoretical arialvsis and e-rpwimental resu1t.s show!hat. die encvption algorithm is of high secnri~v, law cost, and si1pport.y direct hit-rate control. and the video-on-demand syteni is of higlier.secirriw, andsupports more applications.