[TUHS] Windows roots and Unix influence (was Re: Happy birthday, Ken Thompson!)
dave at horsfall.org
Mon Feb 5 11:44:29 AEST 2018
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."
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