US 12,457,202 B2
Method for anonymously transmitting data
Lisa Kranz, Böblingen (DE); Haifa Ben Salem, Stuttgart (DE); Benjamin Nepp, Böblingen (DE); Holger Glemser, Stuttgart (DE); Michael Imhof, Aidlingen (DE); and Martin Eisele, Stuttgart (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 18/697,459
Filed by MERCEDES-BENZ GROUP AG, Stuttgart (DE)
PCT Filed Sep. 28, 2022, PCT No. PCT/EP2022/076886
§ 371(c)(1), (2) Date Mar. 30, 2024,
PCT Pub. No. WO2023/052378, PCT Pub. Date Apr. 6, 2023.
Claims priority of application No. 10 2021 004 935.7 (DE), filed on Oct. 1, 2021.
Prior Publication US 2024/0267363 A1, Aug. 8, 2024
Int. Cl. H04L 9/40 (2022.01)
CPC H04L 63/0421 (2013.01) [H04L 63/00 (2013.01); H04L 63/083 (2013.01); H04L 63/108 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for anonymously transmitting data of a vehicle to a computer coupled by data links to the vehicle, wherein:
the vehicle authenticates itself as a client, by one or more authentication methods, with a token server,
authentication and authorization of the client is checked by the token server,
if the token server determines that the client is not blocked, a currently valid fleet token, which is identical for all clients within a predetermined period of time, is sent to the vehicle as a client, and
the vehicle waits for a random period of time within a configurable time interval before the vehicle uses the fleet token to transmit the data to the computer such that a correlation between the vehicle and the transmitted data via a time measurement is prevented, wherein clients are all vehicles of a vehicle fleet that are authorized to transmit data to the computer.