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Reliable Transmission of Security-enabled Multimedia over Internet David E. Moore and Farid Ahmed

Summary: Reliable Transmission of Security-enabled Multimedia over Internet
David E. Moore and Farid Ahmed
Department of Electrical Engineering and Computer Science
The Catholic University of America, Washington, DC 20064
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.
Keywords: Security, multimedia, cyber-threats, watermarking, buffer management
Multimedia data are being transmitted over the internet at an increasing rate. Applications like video conferencing, chat,
internet telephony, tele-radiology, real-time remote control applications are gaining more momentum. At the same time,
internet itself is becoming alarmingly vulnerable with the sophistication of cyber-attacks. A number of general
cryptographic security protocols for different layers of internet architecture are already in force, while some others are in
proposition [1].


Source: Ahmed, Farid - Department of Electrical Engineering and Computer Science, Catholic University of America


Collections: Engineering