Skip to Main content Skip to Navigation
Conference papers

A theoretical study of watermarking security

François Cayre 1 Caroline Fontaine 1 Teddy Furon 1
1 TEMICS - Digital image processing, modeling and communication
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : This article proposes a theory of watermarking security based on a cryptanalysis point of view. The main idea is that information about the secret key leaks from the observations, for instance watermarked pieces of content, available to the opponent. Tools from information theory (Shannon's mutual information and Fisher's information matrix) can measure this leakage of information. The security level is then defined as the number of observations the attacker needs to successfully estimate the secret key. This theory is applied to two common watermarking methods: the substitutive scheme and the spread spectrum based techniques. Their security levels are calculated against three kinds of attack.
Complete list of metadata
Contributor : François Cayre Connect in order to contact the contributor
Submitted on : Wednesday, June 27, 2007 - 3:48:50 PM
Last modification on : Tuesday, June 15, 2021 - 4:17:36 PM


  • HAL Id : hal-00158005, version 1


François Cayre, Caroline Fontaine, Teddy Furon. A theoretical study of watermarking security. ISIT 2005, 2005, pp.1868-1872. ⟨hal-00158005⟩



Record views