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Collusion-resistant fingerprints based on the use of superimposed codes in real vector spaces

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5 Author(s)
Korzhik, V. ; State Univ. of Telecommun., St. Petersburg, Russia ; Ushmotkin, A. ; Razumov, A. ; Morales-Luna, G.
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In this work we propose the use of random superimposed codes as sequences for collusion-resistant fingerprints. This approach seems to be more suitable in comparison with the use of some other regular sequences (as WBE-sequences) against watermark removal attacks. Sphere decoding algorithm is used for tracing traitors. The performance evaluation of the proposed method is presented. Simulation results show a good efficiency of the proposed codes.

Published in:
Computer Science and Information Technology, 2009. IMCSIT '09. International Multiconference on

Date of Conference: 12-14 Oct. 2009

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