US 12,488,148 B2
Methods and apparatuses for cyber security enhancement
Andreas Aal, Braunschweig (DE)
Assigned to VOLKSWAGEN AKTIENGESELLSCHAFT, Wolfsburg (DE)
Appl. No. 18/692,242
Filed by Volkswagen Aktiengesellschaft, Wolfsburg (DE)
PCT Filed Sep. 17, 2021, PCT No. PCT/EP2021/075731
§ 371(c)(1), (2) Date Mar. 14, 2024,
PCT Pub. No. WO2023/041178, PCT Pub. Date Mar. 23, 2023.
Prior Publication US 2024/0411928 A1, Dec. 12, 2024
Int. Cl. G06F 21/62 (2013.01); G06F 21/75 (2013.01); G06F 21/76 (2013.01)
CPC G06F 21/6254 (2013.01) [G06F 21/75 (2013.01); G06F 21/755 (2017.08); G06F 21/76 (2013.01); G06F 2221/034 (2013.01); H04L 2209/12 (2013.01); H04L 2209/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of providing cyber security enhancement, in particular by obfuscating a signal processing comprising:
receiving an input signal via a first hardware sub-circuit of a hardware circuit and processing the received input signal into a first processed signal according to a first type of processing, or into a second processed signal according to a second type of processing, or into the first processed signal and the second processed signal, wherein the second type of processing being different from the first type of processing;
deriving a first output signal from only the first processed signal or from only the second processed signal;
transmitting the first output signal to a second hardware sub-circuit of the hardware circuit; and
detecting, whether the transmitted first output signal is derived from the first processed signal or from the second processed signal and processing the transmitted first output signal into a second output signal in dependence of the detection.