Reversible and semi-blind relational database watermarking

Gupta, Gaurav & Pieprzyk, Josef (2007) Reversible and semi-blind relational database watermarking. In Second International Conference on Signal Processing and Multimedia Applications (SIGMAP 2007), 28 - 31 July 2007, Barcelona, Spain.

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Database watermarking has received significant research attention in the current decade. Although, almost all watermarking models have been either irreversible (the original relation cannot be restored from the watermarked relation) and/or non-blind (requiring original relation to detect the watermark in watermarked relation). This model has several disadvantages over reversible and blind watermarking (requiring only watermarked relation and secret key from which the watermark is detected and original relation is restored) including inability to identify rightful owner in case of successful secondary watermarking, inability to revert the relation to original data set (required in high precision industries) and requirement to store unmarked relation at a secure secondary storage. To overcome these problems, we propose a watermarking scheme that is reversible as well as blind. We utilize difference expansion on integers to achieve reversibility. The major advantages provided by our scheme are reversibility to high quality original data set, rightful owner identification, resistance against secondary watermarking attacks, and no need to store original database at a secure secondary storage.

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1 citations in Scopus
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ID Code: 74345
Item Type: Conference Paper
Refereed: No
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 23 Jul 2014 03:21
Last Modified: 24 Jul 2014 01:44

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