Towards a Blind MAP-Based Traitor Tracing Scheme for Hierarchical Fingerprints

Faten Chaabane 1 Maha Charfeddine 1 William Puech 2 Chokri Ben-Amar 1
2 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : One of the key challenges of a traitor tracing scheme is to deal with the real scenarios. In this context, the tracing operation is usually constrained by the lack of information about the number of colluders and even the collusion channel. Indeed, the Tardos decoding is invariant regardless the type of collusion, which can be considered as a suboptimality of its accusation performance. In this paper, we propose to use a MAP-based estimation strategy which improves the Tardos decoding step and guarantees a good estimation results. Compared to the original version of Tardos code and the original MAP decoder operating in blind tracing scheme, the proposed technique takes the advantage of operating in hierarchical context to provide a more concise and accurate accusation decision, this in a short time.
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Submitted on : Tuesday, October 11, 2016 - 5:02:37 PM
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Faten Chaabane, Maha Charfeddine, William Puech, Chokri Ben-Amar. Towards a Blind MAP-Based Traitor Tracing Scheme for Hierarchical Fingerprints. ICONIP: International Conference on Neural Information Processing, Nov 2015, Istambul, Turkey. pp.505-512, ⟨10.1007/978-3-319-26561-2_60⟩. ⟨lirmm-01379569⟩



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