5 Feb
2018
5 Feb
'18
7:44 a.m.
On Sun, 4 Feb 2018, William Cheswick wrote:
One important and sensitive site chose to stick with
this technology for
a while becauseone could detect unauthorized taps. I guess TDR isn’t as
useful these days.
I believe that optical TDRs exist, for use on fibre. The ultimate in
anti-snooping, of course, is quantum; if you so much as *look* at it,
you've disturbed it (which is how quantum key exchange would work etc).
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will
suffer."