Totally secure classical communications?

Friday, 16 December 2005, 12:46 AM EST

How would you feel if you invested millions of dollars in quantum cryptography, and then learned that you could do the same thing with a few 25-cent Radio Shack components? I'm exaggerating a little here, but if a new idea out of Texas A&M University turns out to be secure, we've come close.

At Wired.

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Infographic: 25 years of the firewall

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