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Input-Output History Feedback Controller for Encrypted Control With Leveled Fully Homomorphic Encryption
- Source :
- IEEE Transactions on Control of Network Systems. :1-12
- Publication Year :
- 2023
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2023.
-
Abstract
- Protecting the parameters, states, and input/output signals of a dynamic controller is essential for securely outsourcing its computation to an untrusted third party. Although a fully homomorphic encryption scheme allows the evaluation of controller operations with encrypted data, an encrypted dynamic controller with the encryption scheme destabilizes a closed-loop system or degrades the control performance due to overflow. This paper presents a novel controller representation based on input-output history data to implement an encrypted dynamic controller that operates without destabilization and performance degradation. Implementation of this encrypted dynamic controller representation can be optimized via batching techniques to reduce the time and space complexities. Furthermore, this study analyzes the stability and performance degradation of a closed-loop system caused by the effects of controller encryption. A numerical simulation demonstrates the feasibility of the proposed encrypted control scheme, which inherits the control performance of the original controller at a sufficient level.<br />Comment: 12 pages, 7 figures
- Subjects :
- FOS: Computer and information sciences
Computer Science - Cryptography and Security
Control and Optimization
Computer Networks and Communications
Control and Systems Engineering
Computer Science::Multimedia
Signal Processing
FOS: Electrical engineering, electronic engineering, information engineering
Systems and Control (eess.SY)
Electrical Engineering and Systems Science - Systems and Control
Cryptography and Security (cs.CR)
Computer Science::Cryptography and Security
Subjects
Details
- ISSN :
- 23722533
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Control of Network Systems
- Accession number :
- edsair.doi.dedup.....e59aab9df7b2a63e42a91e3cdefae907