security of bluetooth keyboard during boot / mounting root cryptfs

[Donald Talbert]

On Mon, 2011-06-20 at 13:07 -0700, scar wrote:
> i have a system running 10.04 which has the / (root) partition encrypted
> and so i am asked for the passphrase when ubuntu boots up.  but the
> system is also using a bluetooth keyboard/mouse and i am wondering if
> the communication between the keyboard and the receiver is secure during
> this part of booting?  it seems after i enter the passphrase and before
> i am able to log on, the bluetooth connection is reset while the
> bluetooth service starts and re-pairs the keyboard.  does the system use
> some sort of insecure connection during bootup before the bluetooth
> service is started?  thanks
> 
> 
> 

Depends on the model. Some are insecure and some are sold and advertised
as secure. I know most of the bluetooth hackers are geared towards old
cell phones and such, so theres not much risk if it isn't. But just
reply with some more info on your keyboard and I'll check it for you.

Donald Talbert <donaldtalbert at gmail.com>
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