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Authors: Jarrod Trevathan and Wayne Read

Affiliation: School of Mathematical and Physical Sciences, James Cook University, Australia

Keyword(s): Restricted multimedia content, piracy, watermarking, complexity analysis.

Related Ontology Subjects/Areas/Topics: Authentication and Watermarking ; Multimedia ; Multimedia Systems and Applications ; Telecommunications

Abstract: Dynamic traitor tracing schemes are used to trace the source of piracy in broadcast environments such as cable TV. Dynamic schemes divide content into a series of watermarked segments that are then broadcast. The broadcast provider can adapt the watermarks according to the pirate’s response and eventually trace him/her. As dynamic algorithms are deterministic, for a given set of inputs, the tracing algorithm will execute exactly the same way each time. An adversary can use this knowledge to ensure that the tracing algorithm is forced into executing at its worst case bound. In this paper we review dynamic traitor tracing schemes and describe why determinism is a problem. We ammend several existing dynamic tracing algorithms by incorporating randomised decisions. This eliminates any advantage an adversary has in terms of the aforementioned attack, as he/she no longers knows exactly how the tracing algorithm will execute. Simulations show that the randomising modifications influence eac h dynamic algorithm to run at its average case complexity in terms of tracing time. We provide an efficiency analysis of the ammended algorithms and give some recommendations for reducing overhead. (More)

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Paper citation in several formats:
Trevathan, J. and Read, W. (2006). RANDOMISED DYNAMIC TRAITOR TRACING. In Proceedings of the International Conference on Signal Processing and Multimedia Applications (ICETE 2006) - SIGMAP; ISBN 978-972-8865-64-1, SciTePress, pages 323-332. DOI: 10.5220/0001571203230332

@conference{sigmap06,
author={Jarrod Trevathan. and Wayne Read.},
title={RANDOMISED DYNAMIC TRAITOR TRACING},
booktitle={Proceedings of the International Conference on Signal Processing and Multimedia Applications (ICETE 2006) - SIGMAP},
year={2006},
pages={323-332},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001571203230332},
isbn={978-972-8865-64-1},
}

TY - CONF

JO - Proceedings of the International Conference on Signal Processing and Multimedia Applications (ICETE 2006) - SIGMAP
TI - RANDOMISED DYNAMIC TRAITOR TRACING
SN - 978-972-8865-64-1
AU - Trevathan, J.
AU - Read, W.
PY - 2006
SP - 323
EP - 332
DO - 10.5220/0001571203230332
PB - SciTePress

- Science and Technology Publications, Lda.
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