On 2013-02-17, at 10:48, Ted Lemon <ted.le...@nominum.com> wrote:

> On Feb 17, 2013, at 10:35 AM, Joe Abley <jab...@hopcount.ca> wrote:
>> - hopcount.ca's signer explodes (or something else happens such that 
>> hopcount.ca is badly signed)
>> - since hopcount.ca is such a popular domain for Comcast customers, Comcast 
>> DNS engineers take the time to discover that the validation failure for that 
>> zone is in fact due to an operational problem and not an attack
>> - Comcast adds a hopcount.ca.nta.comcast.com zone, which is signed
>> - Comcast's validators pick up the NTA from that zone and configure 
>> themselves accordingly
> 
> Yes.   Although I think you can just sign nta.comcast.com, and have 
> hopcount.ca.nta.comcast.com be some record in that zone, rather than making 
> it an SOA.

Yes, that's the kind of thing I had in mind.

> For extra credit, you could even make it a ZSK that could be used to validate 
> the zone, in cases where the ZSK rollover was flubbed, but the zone is in 
> fact signed and the ZSK it was signed with is known, and known to be good.

That sounds fancy!


Joe
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