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The game of embedding and detecting spread spectrum watermarks under the estimation attack

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2 Author(s)
Kirovski, D. ; Microsoft Res., Redmond, WA, USA ; Malvar, Henrique

We show the theory behind the interaction of parameters involved in the game of marking and detecting direct sequence spread-spectrum (SS) watermarks (WM) under the assumption that the WM estimation attack is carried out prior to WM detection. As an important contribution, we define a modification to the traditional SS WM detector that enforces the adversary to add amount of noise proportional in amplitude to the recorded signal in order to successfully remove a SS WM.

Published in:

Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on

Date of Conference:

2002

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