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Re: Proving I'm not Bob.
On Tue, 21 Nov 1995, David Scheidt wrote:
> What is this system? I can't think of any system that wouldn't work if
> rearranged so that instead of proving you aren't Bob, you simply don't
> prove that you are. It is true that they are not isomorphic, and that
> could be a problem in some situations, but I don't see this as one of them.
Hal and Futplex pretty much described it. I figured a proof of non-identity
(if possible) would have saved one hell of a lot of messy authentication
in those cases when there is only one possible cheater (due to economic
incentives) with many possible pseudonyms (or friends).