David Schwartz wrote:
Do you agree that:
1) If there exists a shared secret, quantum encryption can provide protection, now and in the future, against MITM attacks or passive interception.
I believe so, now that I've read your description.
2) Streams of entangled particles can generate shared secrets where none previously existed.
No, not really, since the scheme described on page 80 of the Jan 2005 Scientific American looks vulnerable to a man-in-the-middle attack. I'm *fairly* sure that wrt shared secrets if "none previously existed" then there is NO way to prevent a man-in-the-middle attack, as there is no way to authenticate your correspondant, however, I am willing to listen to arguments.
-- "An Internet-connected Windows machine is tantamount to a toddler carrying a baggie of $100 bills down a city street..."
Charles B (Ben) Cranston mailto: [EMAIL PROTECTED] http://www.wam.umd.edu/~zben
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