Re: [WM]: security of watermarks

[Teddy Furon <teddy.furon@irisa.fr>]

See watermarking security articles here:
http://www.irisa.fr/temics/publis/show.php?search_author=Furon

and also University of Vigo crew's works. for instance, there http://www.gts.tsc.uvigo.es/gpsc/cgi-bin/bibsearch.cgi? 
keyword=&author=comesa%F1a

Teddy


On 23 janv. 07, at 15:03, Krause, Uschi wrote:

> hello watermarkers,
>
> i'm currently writing my thesis on the topic "analysis of a 
> watermarking and content security solution for a digital video 
> archive".
>
> i've been evaluating different watermarking products and all the 
> manufactures promise that watermarking is THE solution to protect 
> digital media.
>
> i'm actually not so sure about that;-)
>
> true, a watermark cannot be removed unless you modify the data in such 
> way, that the quality suffers and the data is of no use anymore.
>
> but what about the security aspect? as far as i understood, a 
> watermark can be regarded as a pseudo-random-noise, generated by a 
> key. But any key (and any noise) can be cracked, right? How difficult 
> would be it be or how time consuming to find out the key and the noise 
> pattern?
>
> What do you reckon?
> Any help is appreciated.
>
> cheers,
> Uschi Krause


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