Joel - thank you very much for the review. And thanks for Addressing the 
issues, Mike.

Jari

On 07 Jul 2015, at 00:31, Joel M. Halpern <[email protected]> wrote:

> That would work for me.  It gets in the point that the comparing entity, as 
> well as the generating entity, needs to plan for this.
> 
> Thank you,
> Joel
> 
> On 7/6/15 6:29 PM, Mike Jones wrote:
>> Hi Joel.  Thanks for looking this over again.  Section 3.4 was added
>> in response to Adam Montville's SecDir comments, in which his focus
>> was on cases where the hash function didn't have to be known to
>> multiple parties.  I guess it's only fair that you focus on the cases
>> where it does. ;-)
>> 
>> Currently the case you're interested in is covered by the last
>> sentence in 3.4, which reads: "Only if multiple parties will be
>> reproducing the JWK Thumbprint calculation for some reason, will
>> parties other than the original producer of the JWK Thumbprint need
>> to know which hash function was used."
>> 
>> I could strength this by making it its own paragraph, saying this:
>> "However, in some cases multiple parties will be reproducing the JWK
>> Thumbprint calculation and comparing the results.  In these cases,
>> the parties will need to know which hash function was used and use
>> the same one."
>> 
>> Would that work for you, or do you have alternative wording to
>> suggest?
>> 
>> Thanks again, -- Mike
>> 
>> -----Original Message----- From: Joel Halpern
>> [mailto:[email protected]] Sent: Monday, July 06, 2015 6:18 AM To:
>> A. Jean Mahoney; General Area Review Team;
>> [email protected] Subject: Re:
>> [Gen-art] review: draft-ietf-jose-jwk-thumbprint-05
>> 
>> The document is nearly ready for publication as a Proposed Standard.
>> 
>> Upon  re-review, the addition of section 3.4 raises a question of
>> clarity.  As written, the text says that the hash function matters
>> only to the original thumbprint provider.  Should there be a little
>> bit of text talking about the need for the hash function to be the
>> same for thumbprints to be comparable, or, phrased alternatively,
>> that thumbprints with different hashes must not be compared?  If
>> there were no need for consistent production of the thumbprint, there
>> would be no need for a Proposed Standard for the document.
>> 
>> Yours, Joel
>> 
>> The new section 3.4 On 6/19/15 12:06 PM, Joel M. Halpern wrote:
>>> I am the assigned Gen-ART reviewer for this draft. For background
>>> on Gen-ART, please see the FAQ at
>>> 
>>> <http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.
>>> 
>>> Please resolve these comments along with any other Last Call
>>> comments you may receive.
>>> 
>>> Document: draft-ietf-jose-jwk-thumbprint-05 JSON Web Key (JWK)
>>> Thumbprint Reviewer: Joel M. Halpern Review Date: 19-June-2015 IETF
>>> LC End Date: N/A IESG Telechat date: N/A
>>> 
>>> Summary: The internet draft is ready for publication as a Proposed
>>> Standard.
>>> 
>>> [Note to readers: This review is provided because the spreadsheet
>>> said so.  The draft appears not to be in last call yet. Also, this
>>> reviewer did not attempt to second-guess the design choices made by
>>> the WG.  The choices are well-explain, and I understand it to be
>>> the WGs job to make them.]
>>> 
>>> Major issues: N/A
>>> 
>>> Minor issues: N/A
>>> 
>>> Nits/editorial comments: N/A
>>> 
>>> _______________________________________________ Gen-art mailing
>>> list [email protected]
>>> https://www.ietf.org/mailman/listinfo/gen-art
>>> 
>> 
> 
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