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Re: [ietf-smtp] Public Key Look Up

Dave Crocker <dhc@dcrocker.net> Mon, 10 May 2021 19:09 UTC

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To: ietf-smtp@ietf.org
References: <20210508172602.CC09D72BE50@ary.qy>
From: Dave Crocker <dhc@dcrocker.net>
Organization: Brandenburg InternetWorking
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Date: Mon, 10 May 2021 12:09:18 -0700
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Subject: Re: [ietf-smtp] Public Key Look Up
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On 5/8/2021 10:26 AM, John Levine wrote:
> Right.  This idea has failed plenty of times already.


As I recall, at least one perceived problem with the dramatic difference 
in scale between querying for a host versus query for a user.

I recently noted that Shaken/Stir requires a cert per phone number, 
which seems a rather larger scale of real-world use than certs have 
otherwise gotten, to date.  Not sure how many orders of magnitude 
difference, but likely more than one.


d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net

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