11 May
2016
11 May
'16
1:54 p.m.
On Wed, 11 May 2016 15:36:34 -0000, "Jay R. Ashworth" said:
CDMA and GSM are false diversity: both network types nodes *get their time* from GPS, so far as I know.
I'll make the fairly reasonable assumption that most readers of this list have networks that span multiple buildings. If somebody is managing to figure out that you have a GPS in Building 37, and a GPS-based CDMA up on the corner of Building 3, and the *other* 4 clocks at other locations and getting close enough to all of them at the same time to conduct a successful spoofing attack, all just to move your time source a few seconds off.... ... then the fact that GPS is spoofable is probably *NOT* your biggest security problem.