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Re: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Wed, 15 April 2015 16:10 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Oleg Moskalenko <mom040267@gmail.com>, Martin Thomson <martin.thomson@gmail.com>
Thread-Topic: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)
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Date: Wed, 15 Apr 2015 16:10:32 +0000
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Cc: "tram-chairs@ietf.org" <tram-chairs@ietf.org>, "tram@ietf.org" <tram@ietf.org>, Brandon Williams <brandon.williams@akamai.com>, "rlb@ipv.sx" <rlb@ipv.sx>, "Salz, Rich" <rsalz@akamai.com>, "Stephen Farrell (stephen.farrell@cs.tcd.ie)" <stephen.farrell@cs.tcd.ie>
Subject: Re: [tram] Stephen Farrell's Discuss on draft-ietf-tram-turn-third-party-authz-13: (with DISCUSS and COMMENT)
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> >
> > Also, I just noticed that this uses base64.  That's arbitrary.  Does
> > the client remove that encoding before including the token in the STUN
> > message?  There's no MUST there, but it seems like it's part of the
> > process somehow.
> 
> more clarifications in the text are always welcome.

The token is opaque to the client and it includes the token in the STUN message as provided by the authorization server. It's already discussed in section 6.2
<snip>
Note that the self-contained token is opaque to the client and the client MUST NOT examine the token.  
</snip>

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