Date: Sun, 06 Mar 2011 09:56:05 -0500 From: Etienne Robillard <erob@gthcfoundation.org> To: Hans Petter Selasky <hselasky@c2i.net> Cc: adrian@freebsd.org, freebsd-current@freebsd.org Subject: Re: can somebody explains OFDM in FreeBSD? Message-ID: <4D73A085.4030009@gthcfoundation.org> In-Reply-To: <201103061533.32138.hselasky@c2i.net> References: <4D7398C6.8030800@gthcfoundation.org> <201103061533.32138.hselasky@c2i.net>
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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) 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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