Re: Notes from Non-meeting

Henning Schulzrinne <hgs@cs.columbia.edu> schrieb am 21.03.02:

> Location information in a protocol only makes sense if it is associated
> with some identifier. Thus, I don't think that general discussion about
> the location of a cellphone vs. a person is sufficiently precise. It
> makes sense to say "identifier X in protocol Y has location property Z,
> where Y can be a location-specific protocol or a protocol whose primary
> purpose is something other than conveying location. It's users who then
> make associations with people, buses, taxis or other objects. We don't
> have intrinsic identifiers for these objects, certainly not a single
> one.

This is true: we do not have unique identifier for people. But that doesn’t
hinder you to ask where “Jorge” is, although many call me
"Ricardo". If the problem is that the name
“Jorge” is not unique, well you could replace it by “Jorge.Cuellar@mchp.siemens.de” or whatever.
The fact is that people have names by which they can be
 identified in certain contexts. For instance the
Location Server may distribute names to the people
who want to use the service (both for client and for target roles).
More importantly, there are many types of credentials that you
may obtain to prove ownership of your identifier.

Ipsec, PKIX and many other groups at the IETF do not have problem with this.

Your argument applies not only to people, but as you note, to buses,
Taxis and other objects which do not have a single ID. For instance laptops,
handhelds, etc. Should the usability of geopriv be restricted to only cell phones, with a unique identifier? (Not all cell phones will have this
property either).

Regards, Jorge

-------------------------------------------------
Dr Jorge R Cuellar Office: Tel +49 89 636 47585
Siemens CT IC 3 Fax +49 89 636 48000
Otto-Hahn Ring 6 jorge.cuellar@mchp.siemens.de
81730 München
--------- Out of town: -------------
    Fax & Voicebox: +49 (0) 12125-130-30-549
    JorgeRicardo@web.de

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Received on Thu Mar 21 17:36:51 2002