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To: Derek Atkins <warlord@MIT.EDU>
Cc: David Blacka <davidb@research.netsol.com>, namedroppers@ops.ietf.org, dnssec@cafax.se
From: Edward Lewis <lewis@tislabs.com>
Date: Wed, 17 Oct 2001 16:40:10 -0400
In-Reply-To: <sjmbsj712sv.fsf@rcn.ihtfp.org>
Sender: owner-dnssec@cafax.se
Subject: Re: comments on delegation signer

At 9:19 PM -0400 10/16/01, Derek Atkins wrote:
>I was under the impression that this was implied by the fact that the

Either way, the document should make the inclusion of DS or NXT explicit.
Mr. Blacka's assessment that stripping data to go from secure to unsecure
is a concern.  I wonder if that was the thought (that removing data only
makes the source appeared to be more secured[1]) behind the NULL KEY RR set
way back in the day when DNSSEC was first hammered out.

[1] I.e., by removing an insecurity statement, the source appears to be
more secure - hence a signature is expected.  Since zonejackers can more
easily remove records than add seemingly valid signatures, the NULL KEY was
the way to go - up until operational considerations made us question the
workload needed for the approach.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Edward Lewis                                                NAI Labs
Phone: +1 443-259-2352                      Email: lewis@tislabs.com

You fly too often when ... the airport taxi is on speed-dial.

Opinions expressed are property of my evil twin, not my employer.



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