[Geopriv] l-by-r

Hi Brian,

Brian Rosen wrote:
> I think -lbyr-requirements talks about any protocol that handles l-by-r.
> SIP (via location conveyance) would be an example.
I hope we are not working on a requirements document for the SIP
Location Conveyance draft (which is also in WGLC).

> An L7 LCP may be another
> example. Who knows, we could have a DHCP option that could retrieve one.
True.

> L7 lcp talks about a location configuration protocol working at Layer 7.
> That protocol could return a location value, or a reference. There is
> probably some opportunity to remove l-by-r language from lcp-ps and make
> reference to lbyr-requirements.
>

The only requirements that we came up with in the GEOPRIV L7 LCP DT with
respect to l-by-r are the following
(and they do not have anything in there that ties them specifically to a
L7 protocol).

-----------

   The following requirements are placed on the location-by-reference
   approach:

   o The reference MUST be valid for a limited amount of time.

   o The reference MUST be hard to guess, i.e., it MUST contain a
      cryptographically random component.

   o The reference MUST NOT contain any information that identifies the
      user, device or address of record

   o The Location Recipient MUST be able to resolve the reference more
      than once (i.e., there is no implicit limit on the number of
      dereferencing actions).

   o Possessing a reference to location information allows a Location
      Recipient to repeately obtain the latest information about the
      Target with the same granularity.

   o The Target MUST be able to resolve the reference itself.

-----------

Ciao
Hannes

> Brian
>
>
>> -----Original Message-----
>> From: Hannes Tschofenig [mailto:Hannes.Tschofenig@gmx.net]
>> Sent: Wednesday, March 07, 2007 6:22 AM
>> To: GEOPRIV
>> Subject: [Geopriv] Re: [Sip] WGLC on draft-ietf-sip-location-conveyance
>>
>> Hi all,
>>
>> I would like to understand what the relationship between
>> http://www.ietf.org/internet-drafts/draft-ietf-geopriv-l7-lcp-ps-00.txt
>> and
>> http://www.ietf.org/internet-drafts/draft-marshall-geopriv-lbyr-
>> requirements-00.txt
>> is.
>>
>> Can someone help me?
>>
>> Ciao
>> Hannes
>>
>>
>> _______________________________________________
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>> Geopriv@ietf.org
>> https://www1.ietf.org/mailman/listinfo/geopriv
>>
>
>

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Received on Sat, 10 Mar 2007 21:54:57 +0200