Some general methods for tampering with watermarks

Watermarks allow embedded signals to be extracted from audio and video content for a variety of purposes. One application is for copyright control, where it is envisaged that digital video recorders will not permit the recording of content that is watermarked as "never copy". In such a sce...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 1998-05, Vol.16 (4), p.587-593
Main Authors: Cox, I.J., Linnartz, J.-P.M.G.
Format: Article
Language:English
Subjects:
Digital recording
Image coding
Public key cryptography
Signal processing algorithms
Video compression
Watermarking
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Summary:Watermarks allow embedded signals to be extracted from audio and video content for a variety of purposes. One application is for copyright control, where it is envisaged that digital video recorders will not permit the recording of content that is watermarked as "never copy". In such a scenario, it is important that the watermark survive both normal signal transformations and attempts to remove the watermark so that an illegal copy can be made. We discuss to what extent a watermark can be resistant to tampering and describe a variety of possible attacks.
ISSN:0733-8716
1558-0008
DOI:10.1109/49.668980