US 12,192,215 B2
Method and architecture for providing integrated design of cyber-physical system with watermarking
Raman Goyal, Mountain View, CA (US); Christoforos Somarakis, Gilroy, CA (US); Erfaun Noorani, Fairless Hill, PA (US); Aleksandar B. Feldman, Santa Cruz, CA (US); and Shantanu Rane, Palo Alto, CA (US)
Assigned to Xerox Corporation, Norwalk, CT (US)
Filed by Palo Alto Research Center Incorporated, Palo Alto, CA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/939,577.
Prior Publication US 2024/0080325 A1, Mar. 7, 2024
Int. Cl. G06F 21/00 (2013.01); H04L 9/40 (2022.01)
CPC H04L 63/1416 (2013.01) [H04L 63/1425 (2013.01); H04L 63/145 (2013.01); H04L 63/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-executable method for co-designing a controller and a watermarking signal for a cyber-physical system, the method comprising:
determining a first set of values of a first set of parameters indicating operations of the controller based on an initial set of values of a second set of parameters representing the watermarking signal, wherein the watermarking signal is a type of signal combinable with a control signal from the controller for monitoring an output signal of the cyber-physical system for detecting malicious data at a plurality of time instances;
determining a second set of values of the second set of parameters based on the first set of values;
determining a state manager based on the first and second sets of values, wherein the state manager determines states of the cyber-physical system from the monitored output signal; and
determining a detector capable of identifying presence of an attack from the states of the cyber-physical system at the plurality of time instances using the watermarking signal.