They are just malformed. No key material is not permitted with DNSKEY. it’s one 
of the differences to KEY. 

-- 
Mark Andrews

> On 7 Oct 2020, at 04:40, Viktor Dukhovni <[email protected]> wrote:
> 
> After an algorithm rollover (RSA 8 -> ECDSA P256 13) a couple of days
> backs, two domains now have new zero-length RSA 8 KSKs, along with
> working new ECDSA KSKs:
> 
>    https://stats.dnssec-tools.org/explore/?nlagriculture.nl
>    https://stats.dnssec-tools.org/explore/?nlenergyandclimatechange.nl
> 
> It isn't only the RSA modulus that is empty, but rather the entire
> DNSKEY key value (exponent length, exponent, modulus):
> 
>    nlagriculture.nl. IN DNSKEY 257 3 8  ; NoError
>    nlagriculture.nl. IN DNSKEY 257 3 13 vRMOgGXuo/Ra...Yj7dpYrzWOg== ; NoError
>    nlagriculture.nl. IN DNSKEY 256 3 8 AwEAAfc58Rv7...6fPPDdZJ/tfj ; NoError
>    nlagriculture.nl. IN DNSKEY 256 3 8 AwEAAeBjJKDZ...pOKqfoFAnmx1 ; NoError
> 
>    nlenergyandclimatechange.nl. IN DNSKEY 257 3 8  ; NoError
>    nlenergyandclimatechange.nl. IN DNSKEY 257 3 13 
> SURx8TOW5B07...liYpu7BmE0w== ; NoError
>    nlenergyandclimatechange.nl. IN DNSKEY 256 3 8 
> AwEAAb2AbhJT...ppErUsfvCMGtv ; NoError
>    nlenergyandclimatechange.nl. IN DNSKEY 256 3 8 
> AwEAAaeQDrF0...u3IdA2xzSiqZF ; NoError
> 
> Unbound validates the DNSKEY RRset just fine, but these give DNSViz some 
> indigestion:
> 
>    https://dnsviz.net/d/nlagriculture.nl/X3yhPg/dnssec/
>    https://dnsviz.net/d/nlenergyandclimatechange.nl/X3yhXg/dnssec/
> 
> the graphs fail to display.  I wonder whether any other tools
> (especially resolvers) have difficulties with these...
> 
> -- 
>    Viktor.
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