Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-04.txt

"Wessels, Duane" <dwessels@verisign.com> Mon, 29 October 2018 20:36 UTC

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From: "Wessels, Duane" <dwessels@verisign.com>
To: Paul Wouters <paul@nohats.ca>
CC: dnsop <dnsop@ietf.org>
Thread-Topic: [EXTERNAL] Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-04.txt
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Date: Mon, 29 Oct 2018 20:36:48 +0000
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Subject: Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-04.txt
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> On Oct 25, 2018, at 1:44 PM, Paul Wouters <paul@nohats.ca>; wrote:
> 
> 
> 
>> Subject: Re: [DNSOP] I-D Action: draft-wessels-dns-zone-digest-04.txt
> 
> Duane,
> 
> It seems this document is really aiming at the root zone, even though
> there is some text about making it sort of general.

Hi Paul,

Certainly the root zone use case is of particular interest to me, but I also
believe it is a mistake to focus narrowly on that.  I've heard others say they think
its useful in general, and I think as time goes on it will find more use cases.

> 
> What if we signed root-servers.net and allowed people to AXFR that
> zone along with the root zone. Would there be any need to do any
> checksumming? It seems a much simpler solution to protecting the unsigned
> glue records then a new checksum method.

First, I don't really see how it makes things simpler.  You'd have to look
in two places (zones) rather than one.

Second, A signed root-servers.net zone doesn't cover all the root zone glue.
From the presentation I recently gave at DNS-OARC (https://indico.dns-oarc.net/event/29/contributions/656/), a root zone from August 2018 has
10,773 total RRsets, 1400 of which are signed, and 9373 are unsigned.

Whether or not root-servers.net should be signed is, IMO, a separate discussion.

DW