Difference between revisions of "OpenChaos/Hacking Digital Watermarks"

Revision as of 00:28, 22 October 2005

by Tim TimeWaster (tim @ timit.nl)

Tim gab am 21.10.05 einen interessanten Vortrag "Hacking Watermarks" im C4. Wir haben die Folien online.

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-by Tim TimeWaster tim@timit.nl
+by Tim TimeWaster (tim @  timit.nl)
+Tim gab am 21.10.05 einen interessanten Vortrag "Hacking Watermarks" im C4.
+Wir haben die Folien online.
 === Slides ===
 http://w8n.koeln.ccc.de/media/slides/oc_watermark_21102005.pdf
-===klaphek projects===
-<I>commercial break</I> [http://www.klaphek.net Klaphek], a cool hacker magazine and group
-*Bluetooth http://thetoy.co.uk is your wet dream
-*prepeaid web-only GPRS
-*smartcards & magstripe cards
-*whatever we encouter on our way
-===Digital Watermarks===
-DWM: "inivisible" information embedded in data
-Examples:
-*use LSBs (low significant bits)
-*add high freq (pseudo ) nouse / spread
-*echo watermark
-*MPEG stream watermarking