now THAT would be a cool project!
On Tue, Jun 18, 2013 at 2:25 PM, Jazz Kenny <trapperjohn...@gmail.com>wrote: > On Mon, Jun 17, 2013 at 7:38 AM, Tony Patti <t...@swalter.com> wrote: > > Thanks, I liked your pointer to the SDR. > > > > But can I ask you for a bit more info about your statement > > > > "where oscilloscopes and frequency analysis is available to anyone with > some > > Google-fu" > > > > We don't need as much test equipment before? > > > > (as a guy with an oscilloscope in his basement, I don't see how Google > can > > do what that device can). > > > > > > > > Thanks, > > > > Tony > > All I meant was that the tools are relatively accessible to anyone > with the desire to look - An oscilloscope with the necessary freq. > range to study 4G communications can be bought or fabricated (all > that's really needed is a microcontroller with an ADC, some gain amps > and time), an appropriate SDR to intercept the signals shouldn't be > too hard to source, and that community has been blowing up for a few > years now. Hell, there are even a couple examples of LGA 4G receivers > floating around in the wild (gtm801, for example). Ignoring all of > that, there are commercial options like the YellowFin 4G analyzer. No > idea how much one of those costs, though. > > Now, like Jay said, there are the issues of encryption and such, but > that's just another barrier to entry. A little Google-fu could > probably source a paper dealing with its implementation, at least. > > I doubt it would be easy, but if the motivation exists, the required > test bed is easily assembled, and the information is available. Not > like we're talking about intercepted military GPS bands or something. > It's a consumer device that can sit on a workbench and be tested at > the leisure of the security researcher. > > - J. > > -- Phil Fagan Denver, CO 970-480-7618
