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Hi George,

On 06/24/2010 11:59 AM, George Barwood wrote:
> It could also note that validators SHOULD NOT check the RRSIG for a DNSKEY 
> RRset
> where all the keys are validated by DS records.

This is not possible, and Casey thought similarly, so here is text:  The
RRSIG from a DNSKEY identified by a DS record must validate.  You must
do this to ensure that you have obtained all DNSKEY RRs.  And thus know
all of the algorithms in use.  And thus know which algorithms MUST have
signatures over the zone content.  This is from RFC4035.

> There is no need for the DNSKEY RRset to be signed in this case, although of 
> course
> for compatibility it is necessary - but maybe one day in the very far future 
> the SHOULD
> above can become a MUST, and the requirement to provide an RRSIG can even 
> later be relaxed.

No.  Algorithm rollover is very important, as one day cryptography
advances may impose new algorithm constraints.

Best regards,
   Wouter
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