Behavior-based assessment of trust in a cyber-physical system

Abstract

In this paper, we propose a method for assessing the stability of the CPS to attacks based on the analysis of changes in network node parameters. The main purpose of this work is to develop a methodology for evaluating the ability of the catch to demonstrate trusted behavior in the normal operation of the network and during attacks. One of the research tasks is to simulate the operation of the CPS, traffic flows, provided that the network nodes are moving. The analysis of existing CPS is carried out and the structure for further modeling is revealed. Routing protocols and data transfer protocols are analyzed. The existing modeling tools are studied, and their comparative analysis is carried out to identify a suitable CPS for the specified parameters. Nine network scenarios were modeled. Including normal mode, denial of service attack, and Sybil attack. The method of calculating node trust was studied, which further contributed to the detection of a malicious node in the system