Difference between revisions of "OpenChaos/Hacking Digital Watermarks"
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DWM: "inivisible" information embedded in data | DWM: "inivisible" information embedded in data | ||
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*use LSBs (low significant bits) | *use LSBs (low significant bits) | ||
Revision as of 19:25, 21 October 2005
by Tim TimeWaster tim@timit.nl
klaphek projects
commercial break 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
