Re: [dns-privacy] DS Hacks

Ben Schwartz <bemasc@google.com> Fri, 30 July 2021 16:38 UTC

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From: Ben Schwartz <bemasc@google.com>
Date: Fri, 30 Jul 2021 12:38:24 -0400
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To: Shane Kerr <shane@time-travellers.org>
Cc: DNS Privacy Working Group <dns-privacy@ietf.org>
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Subject: Re: [dns-privacy] DS Hacks
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On Fri, Jul 30, 2021 at 12:11 PM Shane Kerr <shane@time-travellers.org>
wrote:
...

> This can't store out-of-bailiwick data, which means we can't secure an
> arbitrary NS RRset this way. Converting DNSName from "prefix" to just
> "name" would allow that.
>

Actually I think it can, but I confused the issue with a mistake below:

> 4. For ADoX, place NS records (with a prefix like "ns3.") and SVCB
> > records (with a prefix like "_dns.ns3.") in the DS glue.
>

This should say "NS records (with a prefix of ".")".  The NS RDATA is
unconstrained.