Encryption is insufficient - if you let someone have physical access for a long enough period, they'll eventually crack anything. Encryption makes the period of time longer, but let them try?
As regards "roving," we are talking about Tyson's Corner here: that's pretty close (< 5km) to major offices of lots of folks who would care deeply about such matters. David Barak Need Geek Rock? Try The Franchise: http://www.listentothefranchise.com --- On Tue, 6/2/09, Charles Wyble <char...@thewybles.com> wrote: > From: Charles Wyble <char...@thewybles.com> > Subject: Re: Fiber cut - response in seconds? > To: "nanog@nanog.org" <nanog@nanog.org> > Date: Tuesday, June 2, 2009, 1:57 PM > Cheaper? > > To quote sneakers.... were the united states govt. we don't > do that sort > of thing. > > Martin Hannigan wrote: > > It would also be cheaper to add an additional layer of > security with > > encryption vs. roving teams of gun toting manhole > watchers. > > > > YMMV, > > > > Best! > > > > Marty > > > > > > > > On 6/2/09, Deepak Jain <dee...@ai.net> > wrote: > >>> No. And here's why: If you're a naughty > foreign intelligence team, and > >>> you know your stuff, you already know where > some of the cables you'd > >>> really like a tap on are buried. When you hear > of a construction > >>> project > >>> that might damage one, you set up your > innocuous white panel truck > >>> somewhere else, near a suitable manhole. When > the construction guy with > >>> a backhoe chops the cable (and you may well > slip him some money to do > >>> so), *then* you put your tap in, elsewhere, > with your actions covered > >>> by > >>> the downtime at the construction site. That's > why the guys in the SUVs > >>> are in such a hurry, because they want to > close the window of time in > >>> which someone can be tapping the cable > elsewhere. > >>> > >>> At least that's what I heard. I read it > somewhere on the internet. > >>> Definitely. Not at all a sneaky person. No > sir. > >> And if you were a naughty foreign intelligence > team installing a tap, or a > >> bend, or whatever in the fiber contemporaneously > with a known cut, you could > >> also reamplify and dispersion compensate for the > slight amount of affect > >> your work is having so that when its tested later, > the OTDR is blind to your > >> work. > >> > >> Ah, the fun of Paranoia, Inc. > >> > >> Deepak Jain > >> AiNET > >> > >> > > > > > >