Inter-frame Collusion Attack in SS-N Video Watermarking System

Authors: Yaser Mohammad Taheri, Alireza Zolghadr–asli, Mehran Yazdi

Abstract:

Video watermarking is usually considered as watermarking of a set of still images. In frame-by-frame watermarking approach, each video frame is seen as a single watermarked image, so collusion attack is more critical in video watermarking. If the same or redundant watermark is used for embedding in every frame of video, the watermark can be estimated and then removed by watermark estimate remodolulation (WER) attack. Also if uncorrelated watermarks are used for every frame, these watermarks can be washed out with frame temporal filtering (FTF). Switching watermark system or so-called SS-N system has better performance against WER and FTF attacks. In this system, for each frame, the watermark is randomly picked up from a finite pool of watermark patterns. At first SS-N system will be surveyed and then a new collusion attack for SS-N system will be proposed using a new algorithm for separating video frame based on watermark pattern. So N sets will be built in which every set contains frames carrying the same watermark. After that, using WER attack in every set, N different watermark patterns will be estimated and removed later.

Keywords: Watermark estimation remodulation (WER), Frame Temporal Averaging (FTF), switching watermark system.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1056482

References:

[1] Su, K., Kundur, D., and Hatzinakos, D.: ÔÇÿStatistical invisibility for collusion-resistant digital video watermarking-. IEEE Trans. Multimedia, 2005, pp. 43-51
[2] G. Doërr and J.-L. Dugelay, "A guide tour of video watermarking," Signal Processing: Image Commun., vol. 18, no. 4, pp. 263-282, Apr.2003
[3] Doe┬¿ rr, G., and Dugelay, J.-L.: ÔÇÿNew intra-video collusion attack using mosaicing-. Proc. IEEE Int. Conf. Multimedia and Expo, 2003, vol. II, pp. 505-508
[4] T. Kalker, G. Depovere, J. Haitsma, and M. Maes. A video watermarking system for broadcast monitoring. In Security and Watermarking of Multimedia Contents, volume 3657 of Proceedings of SPIE, pages 103-112, January 1999.
[5] Voloshynovskiy, S., Pereira, S., Herrigel, A., Baumgartner, N., and Pun, T.: ÔÇÿGeneralized watermarking attack based on watermark estimation and perceptual remodulation-, Proc. SPIE, 2000, 3971, Security and Watermarking of Multimedia Content II, pp. 358-370
[6] G. Do¨err and J.-L. Dugelay. Security pitfalls of frame-by-frame approaches to video watermarking. IEEE Transactions on Signal Processing, Supplement on Secure Media, 52(10):2955-2964, October 2004.
[7] G. Do├½rr and J.-L. Dugelay. (2003) Switching between orthogonal watermarks for enhanced security against collusion in video. Eurécom Inst.,Sophia-Antipolis,France.(Online).Available: http://www.eurecom.fr/~doerr
[8] A. Kerckhoffs. La cryptographie militaire. Journal des sciences militaries, IX:5-83, January 1883.