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To: "D. J. Bernstein" <djb@cr.yp.to>
Cc: ngtrans@sunroof.eng.sun.com, namedroppers@ops.ietf.org, ipng@sunroof.eng.sun.com, dnsop@cafax.se
From: Matt Crawford <crawdad@fnal.gov>
Date: Fri, 20 Jul 2001 11:59:48 -0500
In-reply-to: "20 Jul 2001 05:46:49 PDT." <E15NZg9-0006W0-00@psg.com>
Sender: crawdad@gungnir.fnal.gov
Subject: Re: NGtrans - DNSext joint meeting, call for participation

> 2. There's a common error in the evaluation of DNSSEC signing costs. I'd
> like to draw attention to a new section that I've added to my web page
> to analyze this error: http://cr.yp.to/djbdns/killa6.html#signingcosts

Your reasoning is markedly incorrect if applied to A6.  If we take
site renumbering to be the dominant factor controlling
signature-validity times, then the signatures on the A6 records
covering interface identifiers and subnets can be valid for a long
time, and only one or a small number of A6 rrsets covering the global
prefixes needs to be re-signed frequently.

> 3. I don't understand why this is an ngtrans issue rather than an ipngwg
> issue. The question is not how to move smoothly to A6/DNAME; the
> question is whether we want A6/DNAME at all.

On this we agree.

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