US 11,816,201 B2
Data link layer authenticity and security for automotive communication system
Alexander Zeh, Munich (DE); and Harald Zweck, Munich (DE)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on May 2, 2022, as Appl. No. 17/661,590.
Application 17/661,590 is a continuation of application No. 16/825,896, filed on Mar. 20, 2020, granted, now 11,321,442.
Prior Publication US 2022/0261471 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/44 (2013.01); G06F 21/60 (2013.01); H04L 9/14 (2006.01)
CPC G06F 21/44 (2013.01) [G06F 21/602 (2013.01); H04L 9/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data link layer frame for communication be participants of a bus-based communication system in a vehicle, the data link layer frame comprising: an indication, the indication configured to indicate a level of authenticity and a level of data security of the data link layer frame on data link layer, based on the data link layer frame being only authenticated, or being authenticated and encrypted.