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Science 30 September 2005:
Vol. 309. no. 5744, p. 2148
DOI: 10.1126/science.309.5744.2148b
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News of the Week

CRYPTOGRAPHY:
Simple Noise May Stymie Spies Without Quantum Weirdness

Adrian Cho

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.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)