News of the WeekCryptography

Simple Noise May Stymie Spies Without Quantum Weirdness

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Science  30 Sep 2005:
Vol. 309, Issue 5744, pp. 2148
DOI: 10.1126/science.309.5744.2148b

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Summary

A wire and a few resistors may convey a message as securely as more exotic "quantum cryptography" schemes can, says a physicist who has devised a simple and--he claims--uncrackable scheme.