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[DNSOP] Re: [Ext] Re: Collision Free Key Tags for DNSSEC draft

John Levine <johnl@taugh.com> Tue, 15 July 2025 16:23 UTC

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From: John Levine <johnl@taugh.com>
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Subject: [DNSOP] Re: [Ext] Re: Collision Free Key Tags for DNSSEC draft
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It appears that Philip Homburg  <pch-dnsop-6@u-1.phicoh.com> said:
>> > 2) There are two (or more) keys in a DNSSEC RRset that match an RRSIG recor
>> d.
>> >   This is the expensive part.
>> 
>> This is not expensive. It is still cheap with the limit or 2 or 3
>> failures allowed. I mean, compare this to do doing DoH to all auth
>> servers, this crypto operation amounts to nothing.
>
>It is exactly this limit that causes trouble for some validator software.

How?  I'm not being snarky, I don't see what the problem is.  You set some small
limit on the number of validations you do, and then give up.  I hope we agree that
resolvers already do that.

R's,
John

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