security of bluetooth keyboard during boot / mounting root cryptfs

[scar]

Donald Talbert @ 06/21/2011 01:12 PM:
> Heres Logitech's 5 page white-paper on their 'Logitech SecureConnect'
> technology if you want a bit more piece of mind. :)
> 
> http://logitech-viva.navisite.net/web/ftp/pub/pdf/bluetooth/secure_connect_whitepaper.pdf

thanks for finding this for me.  i'm still a little confused though.  in
that paper it says that the bluetooth setup is done in manufacturing,
eliminating the need to enter a passkey.

this seemed to be true when i was using prior versions of ubuntu; i was
never asked for a passkey and the bluetooth connection 'just worked'.
however, when i upgraded to 10.04, i was suddenly asked to 'pair' the
keyboard, which required a passkey setup.  i notice that this
passkey/pairing will continue to work until i have to re-pair by using
the "connect" buttons on the receiver and keyboard.  then i am required
to enter a new passkey for ubuntu.  of course i can't do that until i
plug in a ps/2 keyboard so i can enter the bluetooth setup.  in prior
releases on ubuntu i never had to do this....