Here is an example of how the data body is fed by routine day-to-day activities, a data body meal plan:
Breakfast: phone calls, drive GPS (global positioning system) equipped car, emerge from surveillance camera equipped subway, go online, send E-mails, complete online registration forms, receive faxes
Lunch: pay lunch with credit card, use your customer card when shopping, use mobile phone, pass through biometric access controls, use smart card
Afternoon snack: visit doctor, file insurance claim
Dinner: respond to TV commercials, complete income tax form, visit chat rooms, use free web mail. Programme phone wake-up call.
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Protecting speech on the global data networks attracts an increasing attention. The efforts and the corresponding abilities of governmental authorities, corporations and copyright enforcement agencies are countered by similar efforts and abilities of researchers and engineers to provide means for anonymous and uncensored communication, as Freenet, Free Haven and Publius. All three of them show a similar design. Content is split up and spread on several servers. When a file is requested, the pieces are reassembled. This design makes it difficult to censor content. All of these systems are not commercial products.
The most advanced system seems to be Publius. Because of being designed by researchers and engineers at the prestigious
For more information on Publius, see John Schwartz, Online and Unidentifiable? in: The Washington Post, June 30, 2000,
Freenet web site:
Free Haven web site:
Publius web site:
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Developed under the auspices of
also called "the study of code". It includes both, cryptography and cryptoanalysis