A novel secure simple Bluetooth pairing using physical vibration

Short-range wireless communication technology is becoming increasingly employed for inter-communication among electronic devices; thus the demand for simply establishing a secure connection between remote devices is also growing. In general, pairing indicates to establish an authentication key agreement for further secure communication between two devices over a wireless channel. In this paper, we propose a novel secure simple Bluetooth pairing technology using physical vibration communication. We describe the modulation and demodulation of the vibration communication and propose a new Bluetooth secure simple pairing. Also, we confirmed the data rate of the vibration communication to be up to about 40 bps on a smartphone.