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Re: [jose] Discuss on http://datatracker.ietf.org/doc/draft-ietf-jose-json-web-algorithms/

Justin Richer <jricher@mit.edu> Mon, 10 November 2014 21:32 UTC

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Date: Mon, 10 Nov 2014 11:31:45 -1000
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From: Justin Richer <jricher@mit.edu>
To: Jim Schaad <ietf@augustcellars.com>, 'Richard Barnes' <rlb@ipv.sx>
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Cc: iesg@ietf.org, jose@ietf.org, 'Stephen Farrell' <stephen.farrell@cs.tcd.ie>
Subject: Re: [jose] Discuss on http://datatracker.ietf.org/doc/draft-ietf-jose-json-web-algorithms/
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It's implemented in some libraries, such as the NimbusDS JOSE-JWT library on Java. However, I don't know of any uses in applications.


-- Justin

/ Sent from my phone /


-------- Original message --------
From: Jim Schaad <ietf@augustcellars.com> 
Date:11/10/2014  11:03 AM  (GMT-10:00) 
To: 'Richard Barnes' <rlb@ipv.sx> 
Cc: iesg@ietf.org, jose@ietf.org, 'Stephen Farrell' <stephen.farrell@cs.tcd.ie> 
Subject: Re: [jose] Discuss on http://datatracker.ietf.org/doc/draft-ietf-jose-json-web-algorithms/ 

Oh – your right.  My head is not processing fast enough.
 
In that case I don’t know of any implementation at the moment for the “oth” parameter
 
I am not sure if Stephen is going to force a removal based on that or not.
 
Jim
 
 
From: jose [mailto:jose-bounces@ietf.org] On Behalf Of Richard Barnes
Sent: Monday, November 10, 2014 10:39 AM
To: Jim Schaad
Cc: jose@ietf.org; Stephen Farrell
Subject: Re: [jose] Discuss on http://datatracker.ietf.org/doc/draft-ietf-jose-json-web-algorithms/
 
What?  I can't speak for Chrome, but Firefox completely ignores the "oth" parameter.

http://dxr.mozilla.org/mozilla-central/source/dom/crypto/CryptoKey.cpp?from=PrivateKeyFromJwk#678

I think you're thinking of the extended, technically not-required RSA private parameters "p", "q", "dp", "dq", "qi".  Firefox and Chrome DO both require those, because the underlying library requires them and we didn't want to implement factoring above the library layer (at least for Firefox).

I'm not sure it makes sense for those parameters to be required at the JWK layer.
 
 
On Mon, Nov 10, 2014 at 10:14 AM, Jim Schaad <ietf@augustcellars.com> wrote:
Based on email that has been sent to the list.  It appears that both Chrome and Firefox have fully implemented the “oth” parameter of RSA private keys.  They actually appear to require that it be present rather than be optional as the document specifies.  However this would mean to me that this parameters is used and you can clear you discuss on that basis.
 
Jim
 

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