Reliable transmission of security-enabled multimedia over the Internet
David E. Moore, Farid Ahmed · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2003
In this paper we address the reliable transmission of security-enabled multimedia data over the internet which is becoming increasingly vulnerable to a variety of cyber-attacks. Due to their real-timeliness aspect, multimedia data in Internet mostly uses User Datagram Protocol(UDP) as the transport media as opposed to the Transport Control Protocol (TCP). UDP is inherently an unreliable transport media that results in certain unacknowledged packet losses. Multimedia applications usually can tolerate some packet losses for its rendering at the receiver side. But, for the security-enhanced multimedia that we are talking about, reliability of reception of most of the packets within a certain tolerance time need to be guaranteed. This is where we come in with a new protocol that ensures packet-level reliability as well as stream-level authentication of multimedia.