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Passive Forensic Analysis for Anti Piracy
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- Gwenaël Doërr
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- 23 February 2016 - 1:43pm
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Cryptography and traitor-tracing watermarking are routinely used today to combat piracy of entertainment content. In this talk, we will explore how passive multimedia forensic analysis, recently proposed for content authentication, could be incorporated in the anti-piracy arsenal. After reviewing the piracy ecosystem, the talk will detail forensic techniques (i) to detect the type of piracy, (ii) to compensate for the effects of the piracy path e.g. prior to traitor tracing watermark detection, and (iii) to infer intrinsic parameters of the devices used to produce pirate samples. In particular, the talk will focus on a particular artifact referred to as luminance flicker that is the byproduct of the interplay between a LCD screen and a camcorder.