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Meeting the Digital Rights Requirements of Live Broadcast in a Peer-to-Peer Network

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5 Author(s)

Live broadcast over a P2P (peer-to-peer) network imposes a unique set of challenges to a digital rights management system. Highly correlated service request arrivals at the start of a live event require peak-load provisioning if clients acquire licenses at playback time. Distributing the license management load across a P2P network requires the digital rights management system to ensure the integrity of both digital rights, the protection of client privacy and, at the same time, system scalability. In this paper we describe the requirements imposed on a digital rights management system in distributing live broadcast over a P2P network and present our design of such a system to meet the above challenges. We discuss the system's operation under a number of threat models and how to extend the system to further improve scalability. We close the paper after presenting some scalability results collected from a production P2P live broadcast network using our DRM design.

Published in:

Distributed Computing Systems (ICDCS), 2011 31st International Conference on

Date of Conference:

20-24 June 2011