A spy's guide to chaos

Lesurf, J.
February 1992
New Scientist;2/1/92, Vol. 133 Issue 1806, p29
Discusses how random noise has been used to send encode messages during the 20th century and a new technique that will give spies a new and more powerful tool. The system that has been used; The method of encryption algorithm; Disadvantages to these methods; Description of the technique that uses chaotic electrical circuits. INSET: 1: Unpredictability and the meaning of noise.;2: Perfect boxes....


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