Model of Video Multicast Instant Source Authentication Based on Digital Watermarking
Anjun Zhao · Modern Electronic Technique · 2005
A novel video multicast instant source authentication model based on digital video watermarking and TESLA (Timed Efficient Stream Losstolerant Authentication) protocol is proposed in this paper. The digital watermark which composes of the MAC (Message Authentication Code) of the significant video content, the key and instant authentication data is embedded into the insignificant video component by the MLUT (Modified Look Up Table) video watermarking technology.So the video packets can be authenticated instantly without large volume buffer in the receivers. In addition, we give a method to calculate the key disclosure delay (number of intervals).