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RE: [Asrg] C/R Interworking Framework

Yakov Shafranovich <research@solidmatrix.com> Sun, 15 June 2003 19:08 UTC

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To: "Eric D. Williams" <eric@infobro.com>, 'Art Pollard' <pollarda@lextek.com>, Rob Cameron <cameron@cs.sfu.ca>, "Asrg@ietf.org" <Asrg@ietf.org>
From: Yakov Shafranovich <research@solidmatrix.com>
Subject: RE: [Asrg] C/R Interworking Framework
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Date: Sun, 15 Jun 2003 13:49:05 -0400

At 11:18 PM 6/14/2003 -0400, Eric D. Williams wrote:

>On Monday, June 09, 2003 6:21 PM, Art Pollard [SMTP:pollarda@lextek.com] 
>wrote:
>8<...>8
> > ... The CR system would filter based in the digital signature rather
> > than the FROM address.
>
>A signature that signs what? or do you mean a 'hash' produced using a 
>'senders'
>private key?

I think he meant a digital certificate issued by a third-part certificate 
authority, not a digital signature.

> > Thus it would be quite possible for people to have
> > multiple clients with the same digital signature (one for each e-mail
> > address say) and they would only have to undergo the CR once -- even if
> > they switched ISPs.
>
>Same private key?

Yep - Same certificate.

>8<...>8
> > ...When whitelisting occurred, it would whitelist a
> > particular person's signature rather than their e-mail address.
>
>Caching of the public key?

Yep.

>-e
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