Model-Based Encryption: Privacy of States in Networked Control Systems

Nirupam Gupta, N. Chopra
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引用次数: 1

Abstract

In this paper, we investigate model-based encryption scheme for privacy of states against eavesdroppers with unbounded computation power in one-channel feedback networked control system (NCSs). In the one-channel feedback NCS, the states of the plant are measured by remote sensors and the controller is co-located with the actuators. To emphasize the mechanics of the proposed approach, the model-based encryption scheme is referred to as masking with system kernel (MSK). In contrast to encryption approaches based on modern cryptography, MSK does not require generation and distribution of secret keys amongst sensors and the controller. It is demonstrated that MSK guarantees privacy of states against eavesdroppers with unbounded computation power if the system parameters of the considered one-channel feedback NCS are selected in an appropriate manner.
基于模型的加密:网络控制系统中的状态隐私
研究了单通道反馈网络控制系统(NCSs)中基于模型的状态隐私加密方案,以防止计算能力无界的窃听者入侵。在单通道反馈NCS中,被控对象的状态由远程传感器测量,控制器与执行器位于同一位置。为了强调所提出方法的机制,将基于模型的加密方案称为系统内核屏蔽(MSK)。与基于现代密码学的加密方法相比,MSK不需要在传感器和控制器之间生成和分发密钥。通过对所考虑的单通道反馈NCS系统参数的适当选择,证明了MSK可以保证状态的隐私性,使其不受计算能力无界的窃听者的攻击。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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