Re: [dns-privacy] Root Server Operators Statement on DNS Encryption

Stephen Farrell <stephen.farrell@cs.tcd.ie> Wed, 31 March 2021 00:33 UTC

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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Date: Wed, 31 Mar 2021 01:33:28 +0100
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Subject: Re: [dns-privacy] Root Server Operators Statement on DNS Encryption
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Hiya,

On 31/03/2021 01:24, Eric Rescorla wrote:
> As I said earlier, this seems overly conservative given our experience with
> large scale TLS-based services.

For the root servers, I don't get why QNAME minimisation
isn't enough? If it is enough, that'd imply to me that the
root server operators statement is fine, so long as it
is only read to apply to root servers and not TLDs.

> 
> With that said, this doesn't seem to me to present a severe problem: there
> are a relatively small number of TLD servers, so we could probably create a
> lookaside list of which ones support TLS as suggested in
> draft-rescorla-dprive-adox-latest-00 Section 3,

I agree that the privacy issues with TLD servers are more
worthy of attention and I guess require encryption if we are
to improve things. I'm not saying the above draft is a good
way to handle that, but the problem in querying TLDs is real,
whereas for root servers it seems to me way less of a deal.

Or... am I confused? (That happens often:-)

Cheers,
S.