How To Foil Pesky E Mail Snoops

SECURING E-MAIL AND OTHER MESSAGES FROM PRYING eyes has become a big issue on the wide-open Internet. Now, Elementrix Inc. in New York is applying one of cryptography's oldest techniques--the so-called one-time pad--to the problem. As the name implies, the scheme calls for encoding every message with its own unique key, or password. That way, breaking into any single message doesn't help a spy break into the next one. Elementrix' Power One Time Pad software, which is priced at $495 and designed for IBM-compatible personal computers, automates the generation of those keys.

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