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Re: [Auth]Third Meeting of DotGNU dg-auth-wg

From: David Sugar
Subject: Re: [Auth]Third Meeting of DotGNU dg-auth-wg
Date: Sat, 27 Jul 2002 15:31:08 -0400
User-agent: KMail/1.4.1

Very simple.  I ask somebody to give me a name for himself, and he speaks a 
name, call it "X".  I can authenticate this "X" because I can determine it is 
the same "X" that said he was "X" the last time I asked him, without knowing 
who "X" really is.  I then ask someone else to ask him his name.  He calls 
himself "Y" to this other person.  This other person can authenticate him the 
second time because he can determine it is the same "Y" that was "Y".  So, I 
have this person I know as "X" and he has "Y".  So long as no correlative 
information has been shared with both of us, there is no way I can externally 
prove my "X" is his "Y", but I can authenticate him, and that's all I need to 
do :).

On Saturday 27 July 2002 02:40 pm, Mario D. Santana wrote:
> David,
> So what's the method? <grin>
> mds
> David Sugar wrote:
> > By the time I arrived in France, I had found a fun method to explain
> > anonymous authentication using a pre-trained audience member.

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