Re: [STDS-802-11] Updated version of RFC4441bis is available; plan to di

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John

On Tuesday, January 21, 2014, Richard Roy <dickroy@xxxxxxxxxxxx> wrote:

--- This message came from the IEEE 802.11 Working Group Reflector ---

ITS around the globe is most assuredly interested in anonymity and various
groups are working on the problem. There are no published standards yet,
however, that detail any particular protocol. It's not as simple as
changing the MAC address. ALL addresses at every layer that are in the
clear need to be tumbled at the same time! This is a significant
cross-layer synchronization challenge.

RR

> -----Original Message-----
> From: *** IEEE stds-802-11 List *** [mailto:STDS-802-11@xxxxxxxx] On
> Behalf Of Henry Ptasinski
> Sent: Tuesday, January 21, 2014 7:29 AM
> To: STDS-802-11@xxxxxxxxxxxxxxxxx
> Subject: Re: [STDS-802-11] Updated version of RFC4441bis is available;
> plan to discuss in ARC on Weds
>
> --- This message came from the IEEE 802.11 Working Group Reflector ---
>
> Rene,
>
> I'm not aware of a "report" on the consideration of temporary/ephemeral
> MAC addresses in 802.11i, but this was one of the proposals:
>
> https://mentor.ieee.org/802.11/dcn/02/11-02-0109-01-000i-temporary-mac-
> address-for-anonymity.ppt
>
> Also, I believe ITS is using temporary MAC addresses. I don't know
> where that usage is documented, but I assume it's somewhere in the 1609
> standards.
>
> ---
> Henry Ptasinski
> henry@xxxxxxxxxx
>
> On 01/21/2014 12:10 AM, Rene Struik wrote:
> > --- This message came from the IEEE 802.11 Working Group Reflector ---
> >
> > Hi Donald:
> >
> > Perhaps, present-day considerations (a decade later) would warrant
> > rethinking this topic; hence, my note.
> >
> > Of course, any documentation of TGi days that sheds light on
> > considerations at the time would help. Do you know whether there is any
> > report on this?
> >
> > I am curious about any downsides (i.e., does it cause 802.11 to
> > malfunction?) and creative thoughts on the topic.
> >
> > Of course, it would be a set-back for entities that try and benefit from
> > stealth consumer tracking software that exploits the "traceability by
> > design" feature of 802.11 -- currently well-documented case: London
> > trash cans with built-in MAC address tracking software [now discontinued
> > after public backlash])?
> >
> > Best regards, Rene
> >
> > On 1/21/2014 1:47 AM, Donald Eastlake wrote:
> >> There was consideration of this as part of 802.11i but it was
> >> ultimately rejected at that time.
> >>
> >> Thanks,
> >> Donald
> >> =============================
> >> Donald E. Eastlake 3rd +1-508-333-2270 (cell)
> >> 155 Beaver Street, Milford, MA 01757 USA
> >> d3e3e3@xxxxxxxxx
> >>
> >>
> >> On Tue, Jan 21, 2014 at 1:25 AM, Rene Struik <rstruik.ext@xxxxxxxxx>
> >> wrote:
> >>> --- This message came from the IEEE 802.11 Working Group Reflector ---
> >>>
> >>> Hi Dorothy:
> >>>
> >>> One area IETF currently targets, measures against pervasive
monitoring,
> >>> could greatly benefit from 802.11 - the primary mechanism for wireless
> >>> internet access - taking measures to try and prevent traceability of
> >>> devices
> >>> at the MAC level (otherwise, whatever protocol). This would call for
> >>> investigating potential use of ephemeral addresses in MPDUs, rather
> than
> >>> using static addresses.
> >>>
> >>> Do you know whether the impact of potentially facilitating this has
> been
> >>> studied carefully in 802.11? Would consideration for this be a
> suitable
> >>> addition to the HEW PAR & 5C?
> >>>
> >>> Best regards, Rene
> >>>
> >>> On Jan 20, 2014 9:34 PM, "Dorothy Stanley" <dstanley1389@xxxxxxxxx>
> >>> wrote:
> >>>> --- This message came from the IEEE 802.11 Working Group Reflector --
> -
> >>>> All,
> >>>>
> >>>> An updated version of RFC4441bis is available, see
> >>>> http://www.ietf.org/id/draft-iab-rfc4441rev-07.txt .
> >>>>
> >>>> I expect that we will review this document in ARC on Wednesday AM1.
> >>>>
> >>>> Thanks,
> >>>>
> >>>> Dorothy
> >>>> --------------------
> >>>> Dorothy Stanley
> >>>> Aruba Networks dstanley@xxxxxxxxxxxxxxxxx
> >

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Re: [STDS-802-11] Updated version of RFC4441bis is available; plan to discuss in ARC on Weds