Re: [ogpx] A Review of Multi-Domain Use Cases [Was: Re: OpenID and OGP : beginning the discussion ...]

Carlo Wood <carlo@alinoe.com> Mon, 29 June 2009 10:51 UTC

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Date: Mon, 29 Jun 2009 12:51:40 +0200
From: Carlo Wood <carlo@alinoe.com>
To: Infinity Linden <infinity@lindenlab.com>
Message-ID: <20090629105140.GA1053@alinoe.com>
References: <3a880e2c0906280906i2cdcdaa3m3c1b1ef54e4e5fcb@mail.gmail.com>
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Subject: Re: [ogpx] A Review of Multi-Domain Use Cases [Was: Re: OpenID and OGP : beginning the discussion ...]
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But the fact remains that,

1) there will be more than one agent domain authorities where
   people can login.
2) The first+last name is the only way to identify people by
   the protocol(?) while in-world (everything else can be
   faked) and therefore, to stop impersonation, first+last
   name has to be unique globally.
3) This is NOT scalable. We'll run into a namespace problem
   (or you'll have to provide millions of last name -- is
   that possible without starting to use numbers?).

On Sun, Jun 28, 2009 at 09:06:08AM -0700, Infinity Linden wrote:
> aha! yes! totally!
> 
> OGP is being designed in such a way that "agent concerns" are
> separated from "simulation and object presence concerns." One of the
> features of OGP is it allows (but does not require) that the
> simulation host responsible for maintaining the physical state of
> objects (location, orientation, shape, motion, etc.) _can_ be
> administered by a different authority from that of the host
> responsible for maintaining user information.
> 
> or, more succinctly, "the agent domain" may be run by a distinct
> organization from the "region domain."
> 
> one of the reasons this was introduced was to allow one virtual world
> to consist of regions that are administered by different people or
> companies, but maintaining central services (like presence, inventory,
> group IM, etc.) that lead to a consistent user experience.
> 
> in other words, our objective is to allow a user to login to an agent
> domain, then establish their avatar's presence in a particular region
> and allow that avatar to easily walk across a region boundary to a
> region owned and operated by a different trusted operator, and have
> that avatar's attachments, appearance and possessions follow them.
> (though for expectation setting purposes i should mention that having
> adjacent regions from distinct region domains is something that's "way
> out there" in terms of schedule, as there's a lot more protocol
> between adjacent regions than non-adjacent regions and it's yet to be
> standardized in any meaningful manner.)
> 
> so... yes... moving from one region domain to another is fully
> supported by the protocol.
> 
> having an agent defined in multiple agent domains is a little trickier.
> 
> On Sun, Jun 28, 2009 at 5:34 AM, Carlo Wood<carlo@alinoe.com> wrote:
> > I'm glad it doesn't imply that then :p
> >
> > Nevertheless, it worries me a bit. At some point we want to be able to
> > teleport between grids right? Surely the people will want to have the
> > same name (and shape) after they teleported in most cases.
> >
> > If the same first_name+last_name is only unique per grid, then
> > people will (have to) start fights about names: one has to register
> > the same first_name+last_name on every grid you want to use.
> >
> > The make a long story short: they same wars and trouble will immerse
> > as are happening on IRC now: too many people in a too small namespace.
> >
> > At some point there will come the strong demand for a "nick serv",
> > some central point where people can reserve their name for every
> > large grid on the planet and claim for themselves (for example, to
> > stop forms of impersonations). That would be 'hack'.
> >
> > I think we have to seriously think about this. Perhaps there is a
> > better solution than 'first name / last name' to login ;).
> >
> > On Sat, Jun 27, 2009 at 03:54:08PM -0700, Infinity Linden wrote:
> >> why would this imply global uniqueness? it describes a message sent
> >> from a client to a particular protocol endpoint.
> >>
> >> On Sat, Jun 27, 2009 at 3:33 AM, Carlo Wood<carlo@alinoe.com> wrote:
> >> >>    & identifier = {
> >> >>      type: 'account',
> >> >>      account_name: string,
> >> >>      first_name: string,
> >> >>      last_name: string,
> >> >>    }
> >> >>
> >> >>    & identifier = {
> >> >>        type: 'agent',
> >> >>        first_name: string,
> >> >>        last_name: string,
> >> >>    }
> >> >
> >> > This seems to implicate that first_name + last_name
> >> > have to be unique not only per grid, but globally
> >> > for every virtual world.
> >> >
> >> > Is that true? Or would it be possible to use a different
> >> > name on different grids? Would it be possible that different
> >> > unrelated people use the same name on different grids?
> >
> > --
> > Carlo Wood <carlo@alinoe.com>
> >

-- 
Carlo Wood <carlo@alinoe.com>