huawei

Tue Jun 18 17:17:36 UTC 2013

So I'm clear, its not just a "low bit rate" argument.  Its a low bit rate,
combined with little spare horsepower (CPU & RAM), little non-volatile
storage, and a deluge of information to sort through in order to find
something useful.  If core routers weren't in the core, where they have
access to lots of data, they'd never be considered as targets for data
interception.  To that point there are other, better, places to intercept
data that has both better throughput and fewer challenges (ie less
expensive).

Scott Helms
Vice President of Technology
ZCorum
(678) 507-5000
--------------------------------
http://twitter.com/kscotthelms
--------------------------------

On Sat, Jun 15, 2013 at 2:11 PM, Jay Ashworth <jra at baylink.com> wrote:

> ----- Original Message -----
> > From: "Scott Helms" <khelms at 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 at baylink.com
> Designer                     The Things I Think                       RFC
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>
>