Robust and reversible numerical set watermarking
Gupta, Gaurav, Pieprzyk, Josef, & Kankanhalli, Mohan (2009) Robust and reversible numerical set watermarking. In Fernández-Medina, Eduardo , Malek, Manu , & Hernando , Javier (Eds.) Proceedings of the International Conference on Signal Processing and Multimedia Applications (SIGMAP 2009), INSTICC Press, Portugal , Milan, Italy, pp. 141-148.
Numeric sets can be used to store and distribute important information such as currency exchange rates and stock forecasts. It is useful to watermark such data for proving ownership in case of illegal distribution by someone. This paper analyzes the numerical set watermarking model presented by Sion et. al in “On watermarking numeric sets”, identifies it’s weaknesses, and proposes a novel scheme that overcomes these problems. One of the weaknesses of Sion’s watermarking scheme is the requirement to have a normally-distributed set, which is not true for many numeric sets such as forecast figures. Experiments indicate that the scheme is also susceptible to subset addition and secondary watermarking attacks. The watermarking model we propose can be used for numeric sets with arbitrary distribution. Theoretical analysis and experimental results show that the scheme is strongly resilient against sorting, subset selection, subset addition, distortion, and secondary watermarking attacks.
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|Item Type:||Conference Paper|
|Keywords:||Watermarking, Copyright protection|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTATION THEORY AND MATHEMATICS (080200)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > COMPUTER SOFTWARE (080300)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DATA FORMAT (080400)
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||23 Jul 2014 03:26|
|Last Modified:||11 Sep 2014 02:24|
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