A Novel approach as Multi-place Watermarking for Security in Database
This addresses the need for security in database systems for applications requiring copyright protection, but it appears incremental as it builds on existing watermarking techniques by extending them to multiple attributes.
The paper tackles the problem of copyright protection for relational databases by proposing a multi-place watermarking method that embeds an image watermark into both numeric and date attributes, aiming to generate robust and imperceptible watermarks applicable to numerical and categorical databases.
Digital multimedia watermarking technology had suggested in the last decade to embed copyright information in digital objects such as images, audio and video. However, the increasing use of relational database systems in many real-life applications created an ever-increasing need for watermarking database systems. As a result, watermarking relational database system is now emerging as a research area that deals with the legal issue of copyright protection of database systems. The main goal of database watermarking is to generate robust and impersistent watermark for database. In this paper we propose a method, based on image as watermark and this watermark is embedded over the database at two different attribute of tuple, one in the numeric attribute of tuple and another in the date attribute's time (seconds) field. Our approach can be applied for numerical and categorical database.