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Re: [tram] signature based 3rd party scheme

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Thu, 30 April 2015 16:58 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>, "tram@ietf.org" <tram@ietf.org>
Thread-Topic: [tram] signature based 3rd party scheme
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Date: Thu, 30 Apr 2015 16:58:10 +0000
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Subject: Re: [tram] signature based 3rd party scheme
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> -----Original Message-----
> From: Stephen Farrell [mailto:stephen.farrell@cs.tcd.ie]
> Sent: Thursday, April 30, 2015 10:12 PM
> To: Tirumaleswar Reddy (tireddy); tram@ietf.org
> Subject: Re: [tram] signature based 3rd party scheme
> 
> 
> 
> On 30/04/15 17:36, Tirumaleswar Reddy (tireddy) wrote:
> > Yes, third party authorization can be used by the TURN server in the
> > Enterprise network to identify the WebRTC server.
> >
> 
> Indeed, if the current draft were the only way to do this then all
> enterprises would have to pre-arrange things with all WebRTC servers.

No, pre-arrangement is not required with all WebRTC servers. 

> IMO that won't work well, if at all.
> 
> A signature based scheme could be used in various ways, e.g. to
> allow calls that don't consume much b/w regardless but to only
> allow calls setup by whitelisted WebRTC servers when those calls
> collectively consume a lot of b/w consumption.

The above problem can also be solved by the proposed mechanism in the draft and similar enterprise use case was discussed in IAB workshop sometime back https://www.iab.org/wp-content/IAB-uploads/2014/12/semi2015_reddy.pdf.

-Tiru

> 
> The latter sounds like something that's much easier to deploy
> to me and seems to meet some real use cases.
> 
> I really think the current wg draft is terribly limited in terms
> of the kinds of use cases for which it'll work. I hope that the
> wg consider those limitations seriously. (Or if you have already
> please just point me at the archive/minutes that reflect that
> discussion.)
> 
> S.

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