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Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

Paul Wouters <paul@xelerance.com> Sat, 20 February 2010 16:47 UTC

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Date: Sat, 20 Feb 2010 11:48:59 -0500
From: Paul Wouters <paul@xelerance.com>
To: Alex Bligh <alex@alex.org.uk>
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Cc: Olaf Kolkman <olaf@NLnetLabs.nl>, dnsop WG <dnsop@ietf.org>
Subject: Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.
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On Sat, 20 Feb 2010, Alex Bligh wrote:

>> There are two meachanisms to provide authenticated proof of
>> exsitance/non-existance in DNSSEC.
>
> I don't believe either provides proof of existence (apart from
> existence of the NSECx record).

If you can proof one, you can also proof the other :)

> I think they both only provide
> proof of non-existence (and in the case of NSEC3 opt out, not
> even that).

That I agree with. NSEC3 plus OPT-OUT does not give a full
authenticated proof of non-existance.

Paul

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