Digital watermarking
Handbook of Applied Cryptography
Handbook of Applied Cryptography
Digital Image Processing
Watermarking schemes provably secure against copy and ambiguity attacks
Proceedings of the 3rd ACM workshop on Digital rights management
Robust DWT-SVD domain image watermarking: embedding data in all frequencies
Proceedings of the 2004 workshop on Multimedia and security
An SVD-based watermarking scheme for protecting rightful ownership
IEEE Transactions on Multimedia
Comments on "An SVD-based watermarking scheme for protecting rightful Ownership"
IEEE Transactions on Multimedia
On the security of an SVD-based ownership watermarking
IEEE Transactions on Multimedia
IEEE Journal on Selected Areas in Communications
Improved SVD-DWT based digital image watermarking against watermark ambiguity
Proceedings of the 2007 ACM symposium on Applied computing
On the security of a hybrid SVD-DCT watermarking method based on LPSNR
PSIVT'11 Proceedings of the 5th Pacific Rim conference on Advances in Image and Video Technology - Volume Part I
On the security of a robust watermarking scheme based on RDWT-SVD
FGIT'11 Proceedings of the Third international conference on Future Generation Information Technology
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We consider the security of a DWT-SVD robust watermarking scheme for images due to Ganic and Eskicioglu. We show that although the scheme has been proven to be robust, it falls to ambiguity attacks, namely that both the image owner and an attacker can extract their watermarks from what appear to be originally watermarked images, causing an unresolveable dispute on the ownership claims of the image. The underlying problem is that the designers concentrated solely on robustness but overlooked the equally important issue of rightful ownership first defined by Craver et al. Without providing rightful ownership, a watermarking scheme cannot be used for proofs of ownership applications. To the best of our knowledge, these are first known attacks on this scheme.