ietf-dkim
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Re: [ietf-dkim] RFC4871bis - whether to drop -- k: Key type

2009-06-02 07:21:43


Eliot Lear wrote:
   ... you do not see a benefit in stating the algorithm in the key
record when it has already been stated in the header, that perhaps there 
is some nebulous potential downgrade attack.  Is that right?


Yes.

And it's not "the" algorithm in the DNS record; it's a list of possible 
algorithms.  The list does not help the receiver know which algorithm is used 
for a particular message.

d/
-- 

   Dave Crocker
   Brandenburg InternetWorking
   bbiw.net
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