Re: huawei

[Phil Fagan <philfagan () gmail com>]

Jay,

That's a very interesting point about the 4G puck....do you mean modulating
data over side-lobes? To your point, I  as a subscriber would have no way
every knowing that unless of course I hooked up my specanny and started to
try to decode the sidelobes....I imagine most folks don't do that ( if
thats how one would even go about it )


On Sat, Jun 15, 2013 at 12:11 PM, Jay Ashworth <jra () baylink com> wrote:

> ----- Original Message -----
> > From: "Scott Helms" <khelms () zcorum com>
>
> > Is it possible? Yes, but it's not feasible because the data rate would be
> > too low. That's what I'm trying to get across. There are lots things that
> > can be done but many of those are not useful.
> >
> > I could encode communications in fireworks displays, but that's not
> > effective for any sort of communication system.
>
> At this point, of course, we hearken back to the Multics system, which
> needed -- in order to get the B1(?) common criteria security rating that it
> had -- to prevent Covert Channel communication between processes of
> different
> security levels *by means as low-bandwidth as sending morse code by
> modulating the system load*.
>
> So I don't think "there's too little bandwidth" is a good enough argument,
> Scott.
>
> But there's a much more important issue here:
>
> In some cases, like the Verizon Wireless 4G puck I mentioned earlier,
> manufactured by ZTE, *you can't see the back side of the device*.   There's
> nearly no practical way for a subscriber to know what's coming out of the
> 4G side of that radio, so it could be doing anything it likes.
>
> Verizon Wireless proper could know, but they have no particular reason to
> look
> and, some might argue, lots of reasons not to want to know.
>
> Cheers,
> -- jra
> --
> Jay R. Ashworth                  Baylink
> jra () baylink com
> Designer                     The Things I Think                       RFC
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-- 
Phil Fagan
Denver, CO
970-480-7618