On Thu, 28 Apr 2016, Viktor Dukhovni wrote:


Yes, basically right, here's the DS-free delegation:

   tools.ietf.org.         NS      gamay.levkowetz.com.
   tools.ietf.org.         NS      zinfandel.levkowetz.com.
   tools.ietf.org.         NS      merlot.levkowetz.com.
   tools.ietf.org.         NSEC    trac.ietf.org. NS RRSIG NSEC
   tools.ietf.org.         RRSIG   NSEC 5 3 1800 20170308083312 20160308073501 40452 
ietf.org. <sig>

The thing one might quibble about is the IMHO much too long RRSIG
validity interval.  One year signatures are rather long.  With this
signature in hand, an attacker can deny any signature for tools.ietf.org
until March 2017 even if the zone were signed tomorrow.

or until ietf.org rolls the ZSK, whichever time period is shorter.

Paul

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