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Encrypted Control Using Modified Learning With Errors-based Schemes

Conference ·
OSTI ID:3024015
Cyber-physical systems (CPSs) require reliable, safe, and secure control of critical infrastructure, combining computational and networking capabilities, which heighten the risk of cyber attacks. These attacks can disrupt the physical process, causing unforeseen consequences. One solution is the use of fully homomorphic encryption (FHE) to protect the control loop, allowing for secure computations and communications without compromising signal and control system privacy. The challenge with FHE, however, is its requirement for inputs to be integers. This paper introduces a modified Learning With Errors (LWE) FHE approach that encodes control system dynamics and signals into integers. Our proposed scheme leverages a generalized LWE encoding function and modifies the Gentry-Sahai-Waters (GSW) gadget decomposition tool to encrypt the control system. Using the modified LWE scheme, we formalize a fully encrypted control system, supported by simulated results.
Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE); USDOE Office of Nuclear Energy (NE)
DOE Contract Number:
AC07-05ID14517;
OSTI ID:
3024015
Report Number(s):
INL/CON-24-77555
Resource Type:
Conference proceedings
Conference Information:
Modeling, Estimation and Control Conference, Chicago, Illinois, 07/25/2024 - 10/30/2024
Country of Publication:
United States
Language:
English