Re: [DNSOP] signalling mandatory DNSSEC in the parent zone

Mark Andrews <marka@isc.org> Mon, 01 March 2021 19:58 UTC

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From: Mark Andrews <marka@isc.org>
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Date: Tue, 2 Mar 2021 06:58:50 +1100
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References: <20210301.205459.413147497474184552.he@uninett.no>
Cc: brian.peter.dickson@gmail.com, ulrich=40wisser.se@dmarc.ietf.org, dnsop@ietf.org
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To: Havard Eidnes <he=40uninett.no@dmarc.ietf.org>
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Subject: Re: [DNSOP] signalling mandatory DNSSEC in the parent zone
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Throw a forced algorithm change in on top where neither provider is willing to sign with the other providers algorithm. 

-- 
Mark Andrews

> On 2 Mar 2021, at 06:55, Havard Eidnes <he=40uninett.no@dmarc.ietf.org> wrote:
> 
> 
>> 
>>   - Switching providers while staying secure requires
>>   inter-provider cooperation, including publishing ZSKs from
>>   both providers in the DNSKEY RRSET served by both providers.
> 
> What?
> 
> Maybe I just don't understand the context or conditions here, but
> ...
> 
> Isn't it possible to stand up a new signing and publishing setup
> with new ZSKs and new KSKs, and have both the old DS record
> pointing to the old setup's KSK and a new DS record pointing to
> the KSK of the new setup registered in the parent zone, and then
> change the actual delegation (NS records), while still retaining
> both the two DS records for a while until the data from the old
> setup has timed out?
> 
> There is then no need to share the secret part of the KSKs or the
> ZSKs between the old and the new providers, or to include both
> the new and the old ZSKs in the zone.
> 
> Regards,
> 
> - Håvard
> 
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