Optimal security parameter for encrypted control systems against eavesdropper and malicious server
| Autor: | Kaoru Teranishi, Kiminao Kogiso |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | SICE Journal of Control, Measurement, and System Integration, Vol 16, Iss 1, Pp 203-214 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1884-9970 18824889 |
| DOI: | 10.1080/18824889.2023.2215691 |
| Popis: | A sample identifying complexity and a sample deciphering time have been introduced in a previous study to capture an estimation error and a computation time of system identification by adversaries. The quantities play a crucial role in defining the security of encrypted control systems and designing a security parameter. This study proposes an optimal security parameter for an encrypted control system under a network eavesdropper and a malicious controller server who attempt to identify system parameters using a least squares method. The security parameter design is achieved based on a modification of conventional homomorphic encryption for improving a sample deciphering time and a novel sample identifying complexity, characterized by controllability Gramians and the variance ratio of identification input to system noise. The effectiveness of the proposed design method for a security parameter is demonstrated through numerical simulations. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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