US 12,137,338 B2
Method to anonymize the source of digital transmissions
Joshua Shire, Gothenburg (SE)
Assigned to Volvo Truck Corporation, Gothenburg (SE)
Filed by Volvo Truck Corporation, Gothenburg (SE)
Filed on Jan. 20, 2022, as Appl. No. 17/580,142.
Claims priority of application No. 21155580 (EP), filed on Feb. 5, 2021.
Prior Publication US 2022/0256336 A1, Aug. 11, 2022
Int. Cl. H04L 29/06 (2006.01); H04W 12/037 (2021.01); H04W 12/106 (2021.01)
CPC H04W 12/037 (2021.01) [H04W 12/106 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A method for private wireless communication, including:
determining, by a network device of a wireless communication system, a maximum time error between a broadcaster device and an observer device and defining a time unit T exceeding the maximum time error;
sharing, by the network device, a secret s with the broadcaster device and the observer device;
receiving, by the wireless communication system, a message transmitted by the broadcast device containing a security code c; and
sending, by the wireless communication system, the message to the observer device to assess genuineness of the message by comparing the security code c with a value h (s, t120) of a predefined function h for a combination of the secret s and a current epoch t120, wherein the current epoch is an integer multiple of the time unit T.