Re: francois' comments and why RFC4474 not used in the field

I can't remember which people thought this did not solve their problem  
but I remember the characteristics of the discussion were similar of  
being unclear where this would or would not work and unclear on what  
the problem was this did not solve.

Cullen <in my individual contributor role>

On Apr 1, 2009, at 10:15 AM, Francois Audet wrote:

> So, having re-read all these drafts...
>
> Cullen/Jon,
>
> Why is something like draft-wing-sip-identity-media (let's focus just
> on the DTLS-SRTP version for now) not a proper solution to the  
> problem we
> are trying to solve?
>
> The problem being (I think):
> 	Identity Assertion of both the Signalling and the Media, BUT allowing
> 	for relays?
>
> This has the advantage of being end-to-end. I guess the alternative is
> to not have end-to-end media identity assertion, and instead have  
> Alice-to-
> her-service-provider's relay, and Bob-to-his-service-provider's-relay
> instead.
>
>> -----Original Message-----
>> From: Dan Wing [mailto:[email protected]]
>> Sent: Monday, March 30, 2009 21:16
>> To: Audet, Francois (SC100:3055); 'Jonathan Rosenberg'; 'Jiri Kuthan'
>> Cc: 'SIP IETF'; 'Uzelac, Adam'; 'Dean Willis'
>> Subject: RE: [Sip] francois' comments and why RFC4474 not
>> used in the field
>>
>>
>>
>>
>>> -----Original Message-----
>>> From: Francois Audet [mailto:[email protected]]
>>> Sent: Monday, March 30, 2009 7:53 PM
>>> To: Jonathan Rosenberg; Jiri Kuthan; Dan WING
>>> Cc: SIP IETF; Uzelac, Adam; Dean Willis
>>> Subject: Re: [Sip] francois' comments and why RFC4474 not
>> used in the
>>> field
>>>
>>> For everybody's reference, can you point to Dan's draft?
>>
>> It is
>> http://tools.ietf.org/html/draft-wing-sip-identity-media-02
>>
>> other proposals in the same sphere,
>> http://tools.ietf.org/html/draft-fischer-sip-e2e-sec-media-00
>> http://tools.ietf.org/html/draft-kaplan-sip-asserter-identity-01
>>
>> -d
>>
>>
>>> On Mar30 2009 19:12 , "Jonathan Rosenberg"
>> <[email protected]> wrote:
>>>
>>>> inline:
>>>>
>>>> Jiri Kuthan wrote:
>>>>
>>>>
>>>>>> From an end user perspective, I would assert that the
>>> most important
>>>>>> thing is probably the media. If the callerID says, "this
>>> is bob", what
>>>>>> is important to the user, is that when I pick up the
>>> phone and start
>>>>>> talking, it will be Bob who hears me, and Bob that I hear.
>>>>>>
>>>>>> Consider this litmus test:
>>>>>>
>>>>>> If the signaling actually came from Mary (perhaps as a
>>> third party),
>>>>>> but the media goes/comes to/from Bob, who should appear
>>> on the caller
>>>>>> ID? I say - Bob.
>>>>>
>>>>> There is a timing aspect in favor of placing identity in
>>> signaling --
>>>>> I would like to know whose call is ringing before I answer
>>> (if I do).
>>>>
>>>> You can still have that. Just don't ring the phone until
>>> early media has
>>>> been exchanged and verified. Indeed if you were doing an
>>> ICE-style thing
>>>> per Dan's draft, you'd get that for free.
>>>>
>>>> -Jonathan R.
>>>>
>>>>
>>>
>>
>>
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