[Discuss] A Little OT: The Password Post-It

[Richard Pieri]

On 4/19/2012 2:13 AM, Tom Metro wrote:
 > Sure, doable, but until you can pick up a pair of turn-key Bluetooth
 > extender transceivers mail order from China, not likely. If you're
 > protecting something valuable enough to justify that effort, you don't
 > want to be relying on Bluetooth proximity.

The transceivers don't need to be Bluetooth. They just need to operate 
on the same frequencies that Bluetooth uses. All they need to do is pass 
RF signals back and forth.  The hard part isn't the signal processing. 
It's the frequency hopping.


 > Really? There's evidence this has been pulled off more than once? How do
 > they get the transceiver near the owner without being noticed? Who is
 > building the transceivers?

Home-made:

http://www.snopes.com/autos/techno/lockcode.asp
http://www.cosic.esat.kuleuven.be/keeloq/

-- 
Rich P.