Bluetooth pairing without user confirmation

Question

Can I pair two devices over Bluetooth without a need to confirm this in user interface, accept to pair this devices. Can I exchange some extra data over, for example NFC, an

Answer 1

If you are asking if you can pair two devices without the user EVER approving the pairing, no it cannot be done, it is a security feature. If you are paired over Bluetooth there is no need to exchange data over NFC, just exchange data over the Bluetooth link.

I don't think you can circumvent Bluetooth security by passing an authentication packet over NFC, but I could be wrong.