Re: [dane] Digest Algorithm Agility discussion (checkpoint)

Scott Rose <scottr.nist@gmail.com> Wed, 19 March 2014 14:08 UTC

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From: Scott Rose <scottr.nist@gmail.com>
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Subject: Re: [dane] Digest Algorithm Agility discussion (checkpoint)
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On Mar 18, 2014, at 4:00 PM, Viktor Dukhovni <viktor1dane@dukhovni.org>; wrote:

> 
> My sense is that regardless, there is not much enthusias for
> negotiating a single digest based on what digests the server offers,
> with the client choosing its most preferred one.
> 
> Is this an accurate summary of the group's consensus view?  Does
> anyone want to defend the view of TLSA digests as a menu of options
> from which the client can choose one?
> 
Don't know about the rest of the WG, but it's mine.  Some communities have a larger local policy that they want to enforce, and the client will prefer that primarily, with potential fallbacks. 


> If not, I will drop the digest agility portion of the SMTP draft.
> In the OPs draft we can encourage server operators (SHOULD) to
> apply all digests equally to all objects, because that's more robust
> in the face of local policy, and results when this is not done may
> not be what the operator wanted.
> 

Still need to see the final text, but looks like it is the right direction.


Scott


> Anyone else?
> 
> -- 
> 	Viktor.
> 
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