[13211] in cryptography@c2.net mail archive
RE: eWeek: Cryptography Guru Paul Kocher Speaks Out
daemon@ATHENA.MIT.EDU (Peter J. Nicol)
Mon May 5 21:44:51 2003
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Reply-To: <Peter.J.Nicol@Turing.Biz>
From: "Peter J. Nicol" <Peter.J.Nicol@Turing.Biz>
To: <cryptography@metzdowd.com>
Date: Tue, 6 May 2003 09:26:54 +0800
In-Reply-To: <v03110708badc9a90b278@[192.168.1.5]>
>
> It occurred to me that one way to attack a watermarking system that I
> haven't heard proposed before is instead of removing the watermark, bury it
> in other watermarks. While this approach would degrade the quality, it
> might not degrade it enough to bother the people who trade video camera
> pointed at the screen copies of movies.
http://slashdot.org/comments.pl?sid=19548&cid=1878668
describes a simple method to remove the watermark on a photoshop image, using
another watermark.
---------------------------------------------------------------------
The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to majordomo@metzdowd.com
