DocumentCode :
110058
Title :
A Heuristic Attack Method to PRH-Based Audio Copy Detectors
Author :
Bisio, Igor ; Braccini, Carlo ; Delfino, Alessandro ; Lavagetto, Fabio ; Marchese, Mario
Author_Institution :
Dept. of Electr., Electron., & Telecommun. Eng., Univ. of Genova, Genoa, Italy
Volume :
22
Issue :
5
fYear :
2015
fDate :
May-15
Firstpage :
564
Lastpage :
568
Abstract :
Often copyrighted multimedia files are uploaded and shared online. To avoid the unregulated spread of such material many copy detectors have been developed in order to deny the possibility to upload, and consequently make available, copies of copyrighted contents. A widely referenced fingerprint method for content-based audio identification is the Philips Robust Hash (PRH) . This paper introduces a simple but effective attack technique capable to defeat a PRH fingerprint-based audio copy detector without significantly affecting the signal quality. It is a heuristic method that adds a suitable distortion to the original audio signal, so that the modified signal is not detected as a copy of the original one but is perceptively very similar to it. The quality of the modified signal has been evaluated in terms of a distortion measure based on a mathematical model of the human auditory system and of the Peak Signal-to-Noise Ratio (PSNR). The attack method has shown a promising success rate.
Keywords :
audio signal processing; copyright; multimedia communication; PRH-based audio copy detectors; PSNR; Philips robust hash; audio signal; content-based audio identification; copyrighted contents; copyrighted multimedia files; distortion measure; heuristic attack method; human auditory system; mathematical model; modified signal quality; peak signal-to-noise ratio; referenced fingerprint method; Bit error rate; Detectors; Distortion; Distortion measurement; Hamming distance; Indexes; Adversarial signal processing; audio fingerprint; copy detection attack; copyright protection;
fLanguage :
English
Journal_Title :
Signal Processing Letters, IEEE
Publisher :
ieee
ISSN :
1070-9908
Type :
jour
DOI :
10.1109/LSP.2014.2363592
Filename :
6924743
Link To Document :
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