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

Scott Rose <scottr.nist@gmail.com> Wed, 19 March 2014 14:52 UTC

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From: Scott Rose <scottr.nist@gmail.com>
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Date: Wed, 19 Mar 2014 10:51:39 -0400
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Subject: Re: [dane] Digest Algorithm Agility discussion (checkpoint)
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On Mar 19, 2014, at 10:35 AM, Viktor Dukhovni <viktor1dane@dukhovni.org>; wrote:

> On Wed, Mar 19, 2014 at 10:08:38AM -0400, Scott Rose wrote:
> 
>> 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.
> 
> Sorry, could you confirm the meaning of the above sentence?  Probably
> my fault, but I am not 100% sure whether you're saying that clients:
> 
>    - should (proposed agility protocol)
>    - may (employ adaptive local policy that amounts to the above), or
>    - must not
> 

The document should drop the algorithm agility text.  RFC 6698 is enough IMHO.   

Scott



> 
> -- 
> 	Viktor.
> 
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