Forever secret
How to make an unbreakable code cheaply
EXPLOITING the quirks of quantum theory (see article) may not be the only way to create unbreakable codes. Michael Rabin and Yan Zong Ding, of Harvard University, think they can do much the same thing by overwhelming any eavesdropper with data.
This article appeared in the Science & technology section of the print edition under the headline “Forever secret”
From the June 23rd 2001 edition
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