Question re prevention of enumeration with DNSSEC (NSEC3, etc.)

Ray Bellis ray at
Sun May 8 23:10:51 UTC 2022

> Is there any case law where someone has asserted a database right for a DNS zone?

> It seems like a rather stupid thing to do. If someone asserted such a
> right, I would make sure not to infringe it by ensuring no entries
> from that database entered my DNS caches or other software.

It wasn’t the zone itself as such - the concern was use of enumerated zone data to then perform bulk collection of Whois data.

> Also, I see that in a decision last year the ECJ required "substantial
> extraction" also caused "significant detriment" to the investment in
> the database.  I'm having trouble coming up with a scenario in which copying
> even the entire thing would impair the investment unless they are going to
> assert that the structure of the names somehow gave away secrets about their
> business plans.

The detriment was scammers sending fake domain renewal notices.

Also, this was 15 or so years ago now…


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