Chris Carr wrote:
> > Brent Brown wrote:
deletia...

> > Speaking of which, in the recent movie "The Score", they
> > went to a lot of bloomin' trouble to fool the guys what
> > was watching the security cams in the treasure room.
> >
> > Seems to me, in today's world, it would be just too durn
> > easy to build a box chip it quick into the coax, 1 sec job,
> > snap exactly "1" frame of the treasure room, and repeatedly
> > send that frame up to the watchers, while the jokers play.
> >
> Which is why you digitise the signal in the camera and then encrypt it
> before sending it across the transmission media.
>
> Just for once the guys in the White Hats are ahead of the guys in the Black
> Hats 8-)

Only if the encryption keys change periodically (like every frame).
If the scene is static, what's to prevent me from just capturing the
ENCODED scene, and replaying the encrypted data, looping at the
repetition point (vertical sync)?

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