On Fri, 22 Aug 2008, Blacka, David wrote:
> >So one can use poison on a validating DNSSEC resolver to achieve false
> >resolution for any "new"  unsigned zone.  Put another way, the bad guy
> >can create new delegations under opt-out NSEC3 records.
> 
> This fact is specifically mentioned in the Security Considerations  
> section of RFC 5155, so, true.

And I should note that in the case of .com and .net zones signed with
NSEC3, rather than going to the trouble of spoofing a domain into
existence, a bad guy with ~USD 10 could just buy the domain.

Matt
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