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Date:      Mon, 7 Mar 2011 05:00:42 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        erob@gthcfoundation.org
Cc:        freebsd-current@freebsd.org, Hans Petter Selasky <hselasky@c2i.net>
Subject:   Re: can somebody explains OFDM in FreeBSD?
Message-ID:  <AANLkTikopx8kmjQGgkaG%2BzE5P8GXehJdQaj462hBr6nn@mail.gmail.com>
In-Reply-To: <4D73F1D2.4000208@gthcfoundation.org>
References:  <4D73BB23.8020806@gthcfoundation.org> <201103061758.47368.hselasky@c2i.net> <4D73C223.8040009@gthcfoundation.org> <201103061836.39151.hselasky@c2i.net> <4D73F1D2.4000208@gthcfoundation.org>

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FreeBSD doesn't implement OFDM in the kernel.

The various chipsets implement OFDM, not FreeBSD.

There's no "software" OFDM. The 802.11 chipsets out there take care of it,
not FreeBSD.


Adrian

On 7 March 2011 04:42, Etienne Robillard <erob@gthcfoundation.org> wrote:

> On 06/03/11 12:36 PM, Hans Petter Selasky wrote:
> > On Sunday 06 March 2011 18:19:31 Etienne Robillard wrote:
> >
> >> On 06/03/11 11:58 AM, Hans Petter Selasky wrote:
> >>
> >
> >> yes, the difference with 'software OFDM' and hardware OFDM - as in
> >> run(4) - is the latter
> >> exploits 'objects' and 'peoples' as subcarriers units with
> >> "bi-directional data" when
> >> software OFDM could be used to securely convert the raw ELF/VLF energy
> >> input to
> >> a external server (the Power Server)..
> >>
> >> could then this not require a security advisory for hardware OFDM
> devices
> >> circulating in the wild to boost 802.11 'speeds' and 'ranges' ?
> >>
> > Hi Etienne,
> >
> > I think you are reading too much into too little and that further
> discussion
> > into the details you suggest is not appropriate for this list. I believe
> that
> > developers on the -current list are serious people, wanting to remove
> problems
> > in this world rather than create them. Exploits are possible when the
> > developers are not given enough time to research good solutions. Maybe
> you
> > want to support FreeBSD developers by donating some money via the FreeBSD
> > foundation, so that we can do a better job, removing your fears of
> software
> > exploits in interaction with humans :-)
> >
> > --HPS
> >
> > BTW: Our slogan is "The power to serve" and not "the power server" :-)
> > _______________________________________________
> > freebsd-current@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-current
> > To unsubscribe, send any mail to "
> freebsd-current-unsubscribe@freebsd.org"
> > X-UID: 11883
> > Status:
> > X-Keywords:
> > Content-Length: 0
> >
> >
>
> I've put a wiki page for anyone interested in the topic of building a
> OFDM-based kernel here:
>
> https://gthc.org/wiki/FreeBSD/OFDM_Kernel
>
> and I still think hardware OFDM is inherently insecure as-is in FreeBSD
> even if not everyone
> seems to agree or willing to debate the idea with strong arguments to
> prove the contrary.
>
>
>
> --
> Etienne Robillard
>
> Company: Green Tea Hackers Club
> Occupation: Software Developer (and CEO)
> E-mail:     erob@gthcfoundation.org
> Work phone: 450-936-2123
> Website (Company):  https://gthc.org/
> Website (Blog):     https://gthc.org/blog/
> PGP public key fingerprint:    F2A9 32EA 8E7C 460F 1728  A1A7 649C 7F17
> A086 DDEC
>
> During times of universal deceit, telling the truth becomes a revolutionary
> act. -- George Orwell
>
> If a free society cannot help the many who are poor, it cannot save the few
> who are rich. -- John F. Kennedy
>
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