Paper
27 February 2007 Reverse-engineering a detector with false alarms
Author Affiliations +
Abstract
Inspired by results from the Break Our Watermarking System (BOWS) contest, we explored techniques to reverse-engineer watermarking algorithms via oracle attacks. We exploit a principle called "superrobustness," which allows a watermarking algorithm to be characterized by its resistance to specific distortions. The generic application of this principle to an oracle attack seeks to find a severe false alarm, or a point on the watermark detection region as far as possible from the watermarked image. For specific types of detection regions, these severe false positives can leak information about the feature space as well as detector parameters. We explore the specific case of detectors using normalized correlation, or correlation coefficient.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Scott Craver and Jun Yu "Reverse-engineering a detector with false alarms", Proc. SPIE 6505, Security, Steganography, and Watermarking of Multimedia Contents IX, 65050C (27 February 2007); https://doi.org/10.1117/12.704389
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CITATIONS
Cited by 8 scholarly publications.
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KEYWORDS
Digital watermarking

Sensors

Detection and tracking algorithms

Optical spheres

Image quality

Information security

Resistance

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