Re: [rtcweb] [BEHAVE] Fwd: New Version Notification for draft-uberti-behave-turn-rest-00.txt

Kaiduan Xie <kaiduanx@gmail.com> Fri, 26 July 2013 13:42 UTC

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Date: Fri, 26 Jul 2013 09:42:56 -0400
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From: Kaiduan Xie <kaiduanx@gmail.com>
To: Oleg Moskalenko <mom040267@gmail.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>, behave <behave@ietf.org>
Subject: Re: [rtcweb] [BEHAVE] Fwd: New Version Notification for draft-uberti-behave-turn-rest-00.txt
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Justin,

I recommend you to put a note into the draft to state the following two
points,

1) The user name and password are generated by the web server instead of
the TURN server.

2) There is no communication channel required between web server and TURN
server.

>From the title (TURN Server REST API) and the text, it is easy to
misunderstand that TURN server processes the HTTP POST request.

Thanks,

/Kaiduan

On Wed, Jul 24, 2013 at 10:06 AM, Oleg Moskalenko <mom040267@gmail.com>wrote;wrote:

> Thank you for the new link.
>
> I checked the new version of the draft and I personally see no problem in
> the text. There is no proprietary software requirements in the draft. It
> simply defines the logic how the TURN server and web server can organize
> the temporary password generation, without imposing any proprietary
> requirements and specs on the software. It is mentioning a possible
> communication channel between web server and TURN server without defining
> any specs and as it is written that channel is not required. As it is
> written, I do not think that it has to be separated into two pieces - it is
> a single solid logical functionality definition.
>
> Thanks
> Oleg
>
>
> On Wed, Jul 24, 2013 at 1:46 AM, Rajmohan Banavi <rajmohanbanavi@gmail.com
> > wrote:
>
>> This is the draft (BEHAVE WG) I am referring to -
>> http://tools.ietf.org/html/draft-uberti-behave-turn-rest-00
>>
>>
>>> This is not the case. It is not the TURN server who generates the
>>> credentials. The web server must generate the temporary password, and to be
>>> able to do that the web server must have the shared secret - the same as
>>> TURN server has. How they share the same shared secret I'd leave outside
>>> the proposed specs.
>>>
>>> OK fine.
>>
>>
>>> It is rather clear - the web server takes the shared secret and it
>>> generates the temporary password for long-term TURN credentials. The TURN
>>> server can reproduce that generation process and obtain the same temporary
>>> password - because the TURN server knows the same shared secret as the web
>>> server.
>>>
>>
>> OK fine.
>>
>> Thanks,
>> Rajmohan
>>
>
>
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