It's my understanding that "Unbearable" is part of an effort to create a new 
working group scoped to work on deliverables based upon these input documents:
http://tools.ietf.org/html/draft-balfanz-https-token-binding
http://tools.ietf.org/html/draft-popov-token-binding
I don't think that it was ever intended to cover every aspect of 
proof-of-possession and so there's not actually any conflict with the work 
we're already doing in OAuth.  (Nor does it seem to me to be productive to add 
even more documents-in-flight to the OAuth working group at present.)
                                Cheers,
                                -- Mike
-----Original Message-----
From: Unbearable [mailto:unbearable-bounces(_at_)ietf(_dot_)org] On Behalf Of 
Derek Atkins
Sent: Saturday, December 06, 2014 11:20 AM
To: ietf(_at_)ietf(_dot_)org
Cc: Andrei Popov; unbearable(_at_)ietf(_dot_)org; Stephen Farrell
Subject: Re: [Unbearable] New Non-WG Mailing List: unbearable
Hi,
IETF Secretariat <ietf-secretariat(_at_)ietf(_dot_)org> writes:
A new IETF non-working group email list has been created.
List address: unbearable(_at_)ietf(_dot_)org
Archive: http://www.ietf.org/mail-archive/web/unbearable/
To subscribe: https://www.ietf.org/mailman/listinfo/unbearable
Purpose:
This list is for discussion of proposals for doing better than bearer 
tokens (e.g. HTTP cookies, OAuth tokens etc.) for web applications. 
The specific goal is chartering a WG focused on preventing security 
token export and replay attacks.
The OAUTH Working Group is already (and has been for a while!) looking into 
"holder of key" protocols to improve upon Bearer Tokens.
I would suggest that this work happen there instead of creating a whole new 
group for it.
-derek
For additional information, please contact the list administrators.
-- 
       Derek Atkins                 617-623-3745
       derek(_at_)ihtfp(_dot_)com             www.ihtfp.com
       Computer and Internet Security Consultant
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