Good Neighbor: Ad Hoc Pairing of Nearby Wireless Devices by Multiple Antennas
The proliferation of personal wireless devices requires secure connection between them. While it is easy to securely pair electronic devices by wires, it is very challenging to pair them wirelessly when they have no prior association. This paper proposes Good Neighbor, a novel scheme that securely pairs nearby wireless devices by exploiting multiple antennas built in them. The scheme requires neither shared secrets nor out-of-band channels (e.g., Audio, visual, keyboard, etc.) between the pairing devices. It only requires that the receiver has multiple antennas and that the sender can be placed nearby the receiver.