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To: Olaf Kolkman <OKolkman@ripe.net>
Cc: dnssec@cafax.se
From: Edward Lewis <lewis@tislabs.com>
Date: Wed, 4 Jul 2001 08:27:48 -0400
In-Reply-To: <200107040818.KAA24280@x50.ripe.net>
Sender: owner-dnssec@cafax.se
Subject: Re: ttl problems in DNSSEC

At 4:18 AM -0400 7/4/01, Olaf Kolkman wrote:
>
>I think that the problem is not that K++1 is removed but that the data
>is not signed with S++1.
>
>IMO this is the solution: After the rollover NS MUST sigh the data in
>it's zone with both keys for a period that is at least the TTL of the
>old key (K++1)
>

I think this would be heading in the wrong direction.  When retiring a key
you want to remove the signatures, not perpetuate them.

Perhaps this might be the right step though, but for a different reason - a
resolver can't force a recursing name server to get newer data for what it
has in its cache.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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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