Difference between revisions of "OpenChaos/Hacking Digital Watermarks"
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===Digital Watermarks=== | ===Digital Watermarks=== | ||
| − | DWM | + | DWM: "inivisible" information embedded in data |
| + | |||
| + | ExampleS: | ||
| + | |||
*use LSBs (low significant bits) | *use LSBs (low significant bits) | ||
*add high freq (pseudo ) nouse / spread | *add high freq (pseudo ) nouse / spread | ||
*echo watermark | *echo watermark | ||
*MPEG stream watermarking | *MPEG stream watermarking | ||
Revision as of 19:23, 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
