A robust watermarking scheme for relational databases

Research into the issue of the rights protection of digital data is of critical importance since legal measures have proved ineffective against digital piracy. Digital watermarking tops the list of technical countermeasures. Its process involves the incorporation of a set of some data in the item to be protected; this set of data is called watermark. The accuracy of the item is slightly degraded but the watermark acts as a seal that henceforth identifies the intellectual owner. This paper proposes a novel watermarking scheme for relational data which is efficient against a range of attacks that may be issued to remove or destroy the watermark. The paper provides experimental results for a variety of parameter settings, revealing the robustness of the proposed scheme in numerous possible attacks.