System and method for secure pairing of bluetooth devices
AssigneeBbpos Limited
InventorChi Wah Lo
Life of this patent
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Abstract
A system of securely paired Bluetooth devices includes a host device and a peripheral device, where each device includes an audio interface and a Bluetooth transceiver. The host device and the peripheral device connect to each other by physically connecting their corresponding audio interfaces and communicate with each other by establishing an out-of-band audio communication channel via the connected audio interfaces. The host device and the peripheral device exchange Bluetooth authentication data via the out-of-band audio communication channel, and then are securely paired with each other by turning on and initializing the corresponding Bluetooth transceivers with the corresponding exchanged Bluetooth authentication data.
Claims20
A system of securely paired Bluetooth devices comprising:
- a host device comprising an audio interface and a Bluetooth transceiver;
- a peripheral device comprising an audio interface and a Bluetooth transceiver;
- wherein the Bluetooth transceiver of the host device and the Bluetooth transceiver of the peripheral device are in an idle power state when the host device and the peripheral device are not securely paired;
- wherein the host device and the peripheral device are configured to connect to each other by physically connecting their corresponding audio interfaces and to communicate with each other by establishing an out-of-band audio communication channel through the connected audio interfaces;
- wherein the host device and the peripheral device are configured to exchange Bluetooth authentication data via the out-of-band audio communication channel;
- and
- wherein the host device and the peripheral device are configured to be securely paired with each other by establishing an authenticated and cryptographically protected in-band Bluetooth communication channel with each other and wherein the in-band Bluetooth communication channel is established by the Bluetooth transceiver in the host device and the Bluetooth transceiver in the peripheral device transitioning from the idle power state to an operating state, and initializing the corresponding Bluetooth transceivers with the corresponding exchanged Bluetooth authentication data.
A method for securely pairing Bluetooth devices comprising:
- providing a host device comprising an audio interface and a Bluetooth transceiver, the Bluetooth transceiver of the host device initially being in an idle state;
- providing a peripheral device comprising an audio interface and a Bluetooth transceiver, the Bluetooth transceiver of the peripheral device initially being in an idle state;
- connecting the host device and the peripheral device to each other by physically connecting their corresponding audio interfaces;
- communicating between the host device and the peripheral device by establishing an out-of-band audio communication channel through the connected audio interfaces;
- exchanging Bluetooth authentication data between the host device and the peripheral device via the out-of-band audio communication channel;
- and
- pairing the host device and the peripheral device with each other by establishing an authenticated and cryptographically protected in-band Bluetooth communication channel with each other and wherein the in-band Bluetooth communication channel is established by the Bluetooth transceiver in the host device and the Bluetooth transceiver in the peripheral device transitioning from the idle power state to an operating state, and initializing the corresponding Bluetooth transceivers with the corresponding exchanged Bluetooth authentication data.
Dependencies are inferred from the claim text.