Re: can somebody explains OFDM in FreeBSD?

OpenBSD has driver support for OFDM chips. Anything that speaks 11a, 11g or
11n == OFDM.

You'd have to speak to an RF related person about your definition of
harmful. I mean, think about it - 802.11 devices are supposed to give off
EMR that a receiver can decode. So your question about whether OFDM being
harmful requires more context, as unlike wired solutions (say wired
ethernet) which may give off EMR which could then be snooped, 802.11 is
supposed to be received through EMF. :)

Also, that paper you referenced talks about ERLANG, it doesn't mention OFDM
anywhere.

HTH,


Adrian

On 6 March 2011 22:56, Etienne Robillard <erob_at_gthcfoundation.org> wrote:

> On 06/03/11 09:33 AM, Hans Petter Selasky wrote:
> > On Sunday 06 March 2011 15:23:02 Etienne Robillard wrote:
> >
> >> Hi, as the subject line implies, can someone explains why OFDM
> (Orthogonal
> >> Frequency Division Multiplexing) is required for running run(4) ? Is
> there
> >> any (safer) alternative to OFDM?
> >>
> >> If not, could the FreeBSD security team verify the the safety of OFDM
> >> derived
> >> drivers (in particular wireless ethernet based nics) so that no ones get
> >> hurt being
> >> a WLAN (802.11ng ethernet-class) subcarrier ?
> >>
> > As per my knowledge OFDM is a carrier format which is handled by the
> hardware.
> > Is there anything in particular you want to high-light?
> >
> > --HPS
> >
>
>
> Yes, from a security perspective, could radiance from ELF/VLF operating
> devices as
> "ethernet-class subcarriers"  which is part of the OFDM spec be
> considered harmful?
>
> if not is there any OFDM code in OpenBSD?
>
> Cheers,
>
>
> references:
>
> 1. Orthogonal Frequency Division Multiplexing (OFDM)
> https://gthc.org/investigations/pub/armstrong.pdf
>
>
>
> --
>
> Etienne Robillard
>
> Company: Green Tea Hackers Club
> Occupation: Software Developer (and CEO)
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> A086 DDEC
>
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