The Elevator Problem
Futplex
futplex at pseudonym.com
Thu Dec 14 01:06:49 PST 1995
Dave writes:
> Disregarding the "quantum properties of light" issue, if Eve can listen
> in on every communication between Alice and Bob about their keys, then
> doesn't she have enough information to reconstruct the key herself?
By "disregarding the quantum properties", I assume you are asking about
deterministic cryptosystems. Eve does not have sufficient information if
Alice and Bob use, say, Diffie-Hellman key exchange (DH). As I said, that's
why DH is so clever. :) (cf. any good crypto text) But that's patented
(for now), and we were asked about a patent-free solution.
-Futplex <futplex at pseudonym.com>
"We live in a time when...individual rights are constantly expanded" -Sen.
Orrin Hatch (R-UT), speaking in support of an anti-flag-desecration
Constitutional amendment
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