Title: Digital watermarking for relational databases using traceability parameter

Authors: Burepalli V.S. Rao, Munaga V.N.K. Prasad

Addresses: Institute for Development of Research in Banking Technology, Hyderabad 500046, India. ' Institute for Development of Research in Banking Technology, Hyderabad 500046, India

Abstract: Proving ownership right on outsourced relational database is a crucial issue in today|s internet-based application environments and in many content distribution applications. We present a mechanism for proof of ownership which is based on the secure embedding of a robust imperceptible watermark in the relational database. It is achieved by formulating a watermarking method, which will watermark only the numeric attributes and introduce the traceability parameter in the watermark detection technique. This monitors the modifications made to the relational database by the attacker. Proposed watermark detection technique is having a time complexity of O(η), where η is the number of tuples in the relational database and this technique is resilient to subset attack, alteration attack and data replacement attack.

Keywords: traceability parameters; information hiding; digital rights; relational databases; digital watermarking; ownership rights; proof of ownership; subset attacks; alteration attacks; data replacement attacks; security.

DOI: 10.1504/IJCAT.2009.026588

International Journal of Computer Applications in Technology, 2009 Vol.35 No.2/3/4, pp.113 - 121

Published online: 20 Jun 2009 *

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