One problem with DiS is that assumes that address records in the additional
section *always* come from the delegating zone (see how the hash is created).
This is not how DNS works. Address records can, correctly, come from other
sources, even when the name is *below* the zone cut.
Take a server that serves example.net and sub.child.example.net. That A record
comes from sub.child.example.net not example.net when the name of the server is
a.sub.example.net.
child.example.net NS a.sub.example.net
a.sub.example.net A 1.2.3.4
Mark
> On 4 Nov 2020, at 15:31, fujiw...@jprs.co.jp wrote:
>
> I submitted draft-fujiwara-dnsop-delegation-information-signer-00.
>
> Name: draft-fujiwara-dnsop-delegation-information-signer
> Revision: 00
> Title: Delegation Information (Referrals) Signer for DNSSEC
> Document date: 2020-11-03
> Group: Individual Submission
> Pages: 6
> URL:
> https://www.ietf.org/archive/id/draft-fujiwara-dnsop-delegation-information-signer-00.txt
>
> DNSSEC does not have a function to validate delegation information.
> I think it is a large missing peace of DNSSEC.
>
> I have a question why we did not include signature validation function
> to delegation information ?
>
> Probably, because it is non-authoritative information.
> Or, because it was difficult to define the necessary and sufficient
> delegation information.
>
> It is now widely agreed (although not explicitly documented) that the
> delegation information is the information used for name resolution and
> does not result in name resolution.
>
> We have a word "in-domain" glue which is the necessary and sufficient glue.
>
> And the idea may offer the signature for root priming data.
>
> If someone interested the document, I would like time slot at dnsop WG
> meeting.
>
> Regards,
>
> --
> Kazunori Fujiwara, JPRS <fujiw...@jprs.co.jp>
>
> _______________________________________________
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> https://www.ietf.org/mailman/listinfo/dnsop
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
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