Towards Cyber-Physical Representation and Cyber-Resilience Against Attack and Failure within a Hydraulic Network Simulation Toolkit

The ubiquitousness of water distribution and management systems is something often taken for granted in the modern world, as is the physical security and cybersecurity of these critical pieces of infrastructure. As cyberattacks in particular have become easier to perform with the development of security and hacking toolkits aimed at industrial control systems (ICS), effective resiliency modeling for water networks should involve representation of the cyber-physical systems (CPS) which permeate the systems. This paper provides some background on the role of CPS in ICS and the use of simulation in the evaluation of existing systems and the testing of proposed designs. It then provides a solution for some of the current functionality gaps in CPS network simulation in the form of a module add-on for the commonly used hydraulic simulator toolkit, the Water Network Tool for Resilience (WNTR). This module allows simulation of failure and attack scenarios involving CPS devices embedded in the network and is planned to provide an assessment of the criticality of each device from a network level, as well as options for more in-depth simulation of network traffic and device interaction in the future.