Re: [ietf-smtp] Public Key Look Up
John C Klensin <john-ietf@jck.com> Wed, 12 May 2021 17:49 UTC
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Date: Wed, 12 May 2021 13:48:55 -0400
From: John C Klensin <john-ietf@jck.com>
To: Alessandro Vesely <vesely@tana.it>, dcrocker@bbiw.net, Valdis Klētnieks <valdis.kletnieks@vt.edu>, ietf-smtp@ietf.org
cc: John Levine <johnl@taugh.com>
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Subject: Re: [ietf-smtp] Public Key Look Up
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--On Wednesday, May 12, 2021 18:57 +0200 Alessandro Vesely <vesely@tana.it> wrote: >... >>> This is well understood technology - see any company that >>> intercepts https:// and re-encrypts the user-side traffic >>> using their own keys.> >> or DKIM. > Neither case provides for end-to-end crypto. (Hm... possibly > except DKIM for postmaster to postmaster communication, > deploying the binary key as OpenGPG. Not an alluring > technique.) And, getting back to the point that John Levine, myself, and others have been trying to make, there is a world (or at least several orders of magnitude) of difference between keys associated with hosts (mail servers, firewall gateways, web sites, etc.) and those associated with individual users or mailbox names. best, john
- Re: [ietf-smtp] Public Key Look Up Jeremy Harris
- [ietf-smtp] Public Key Look Up patrick.peisker
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up Dave Crocker
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up Dave Crocker
- Re: [ietf-smtp] Public Key Look Up John R Levine
- Re: [ietf-smtp] Public Key Look Up Valdis Kl ē tnieks
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up Dave Crocker
- Re: [ietf-smtp] Public Key Look Up Dave Crocker
- Re: [ietf-smtp] Public Key Look Up Ned Freed
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up Alessandro Vesely
- Re: [ietf-smtp] Public Key Look Up Richard Clayton
- Re: [ietf-smtp] Public Key Look Up Matthias Leisi
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up John R Levine
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up Gene Hightower
- Re: [ietf-smtp] Public Key Look Up Gene Hightower
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up Gene Hightower
- Re: [ietf-smtp] Public Key Look Up John C Klensin
- Re: [ietf-smtp] Public Key Look Up Matthias Leisi
- Re: [ietf-smtp] Public Key Look Up John Levine
- Re: [ietf-smtp] Public Key Look Up patrick.peisker