Mark Andrews <ma...@isc.org> wrote:
> Tony Finch <d...@dotat.at> wrote:
> > Roy Arends <r...@dnss.ec> wrote:
> >
> > > If that succeeds, only then validation makes sense.
> >
> > Why? Why not validate the chain of referrals as you follow them? The
> > protocol is designed to support that otherwise it would not include the DS
> > in the referral.
>
> It's more because we havn't coded for it yet, especially the non
> existence case, than anything else.

Yes, and that's perfectly fine :-) I'm just puzzled why Roy thinks it
doesn't make sense to reduce validation latency.

I'm also wondering what the advantages are to bottom-up validation. It
gets really knotty when the leaf records have broken signatures - you
have to keep walking up the tree to see if there's an insecure delegation
to work out whether to return bogus or insecure.

Tony.
-- 
f.anthony.n.finch  <d...@dotat.at>  http://dotat.at/
Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first.
Rough, becoming slight or moderate. Showers, rain at first. Moderate or good,
occasionally poor at first.
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