2005/6/30, Marcel Holtmann <marcel@holtmann.org>:
Hi Jordi,
> IŽd like to generate the PIN based on the shared key derived from a
> Diffie Hellman exchange between the bluetooth peers.
if you wanna use Diffie Hellman, for what reason do you want to use the
pairing and encryption of Bluetooth then.
I would like to use the pairing and encryption of bluetooth as usual,
and use only the Diffie-Hellman exchange to generate a "stronger"
PIN for the pairing.
> Is it possible to trigger this exchange at pairing time using my own
> 'pin_helper' program ?
To exchange data you need a connection first. This means you can only do
this in security mode 1 and 2. The PIN helper can't be used for any of
these task except entering a PIN.
But then, is there any other way for the peers to exchange previous communication attributes than using the SDP protocol ?
Is it possible to exchange information by previously registering a new
service (with a fixed PSM) and then negociate the parameters directly
using L2CAP sockets ?
Regards,
Jordi
Regards
Marcel
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