US 12,284,522 B2
Systems and methods for protecting bluetooth low energy devices from address tracking
Zhiqiang Lin, Columbus, OH (US); and Yue Zhang, Columbus, OH (US)
Assigned to Ohio State Innovation Foundation, Columbus, OH (US)
Filed by Ohio State Innovation Foundation, Columbus, OH (US)
Filed on Oct. 20, 2021, as Appl. No. 17/506,011.
Claims priority of provisional application 63/093,834, filed on Oct. 20, 2020.
Prior Publication US 2022/0124505 A1, Apr. 21, 2022
Int. Cl. H04W 4/80 (2018.01); H04W 12/122 (2021.01)
CPC H04W 12/122 (2021.01) [H04W 4/80 (2018.02)] 21 Claims
OG exemplary drawing
 
1. A method of defending against passive Bluetooth Address Tracking (BAT) attacks, the method comprising:
randomizing synchronization between a first device and a second device;
randomizing a time interval between the first device and the second device; and
establishing communication between the first device and the second device in accordance with the time interval,
wherein randomizing synchronization between the first device and the second device is based on a distance between the first device and the second device, and
wherein when the distance between the first device and the second device is less than or equals a predetermined threshold, then the first device and the second device cannot independently start their own randomization.