[Opendnssec-user] nsec3 records for insecure empty non-terminal

Yuri Schaeffer yuri at nlnetlabs.nl
Tue Aug 30 15:32:14 UTC 2016


Hi Emil,

> Each empty non-terminal MUST have a corresponding NSEC3 RR, unless
>       the empty non-terminal is only derived from an insecure delegation
>       covered by an Opt-Out NSEC3 RR.
> 
> If I understand the above correctly, NSEC3 records should not be created
> for insecure delegations.
> validns also recognize this as an error:
>  validns ../signed/example.com.zone.signed
> ../signed/example.com.zone.signed:22: NSEC3 without a corresponding
> record (or empty non-terminal)
> 
> Any help will be highly appreciated.

Ah, opt-out with empty non terminals. Tricky business. From that quote
(and some light reading) I can not derive the signer output is wrong.
Basically that requirement explicitly does not apply here.

I'm unsure why validns does not detect the empty non-terminal. But I
admit further reading might be necessary to give a definitive answer.

//Yuri

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