Re: [DNSOP] Working Group Last Call for: Message Digest for DNS Zones

Miek Gieben <miek@miek.nl> Tue, 14 January 2020 06:15 UTC

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Date: Tue, 14 Jan 2020 07:15:38 +0100
From: Miek Gieben <miek@miek.nl>
To: Michael StJohns <msj@nthpermutation.com>
Cc: John R Levine <johnl@taugh.com>, dnsop@ietf.org
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Subject: Re: [DNSOP] Working Group Last Call for: Message Digest for DNS Zones
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[ Quoting <msj@nthpermutation.com> in "Re: [DNSOP] Working Group Last Call..." ]
>I'm not convinced of the general utility of this scheme. 
>It feels like DNS bloat and more a solution in search of a problem.  
>That said, I appreciate  Duane's willingness to make changes to fix
>some of the more egregious problems.

I like to echo this sentiment; esp considering this draft is heading towards a standards
track.

Also the example given in 1.1 Motivation is a bit weak:

"For example, a name server loading saved zone data upon restart cannot guarantee that the
on-disk data has not been modified.  For these reasons, it is preferable to secure the
data itself."

That looks like an implementation detail for nameservers loading the zone, not something
the IETF should fix.

/Miek

--
Miek Gieben