Optimal Security Parameter for Encrypted Control Systems Against Eavesdropper and Malicious Server. (arXiv:2303.13059v1 [eess.SY])

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 …

adversaries capture complexity computation control control system control systems encrypted error identification malicious network parameter play role security server study system systems under