Analysis of SCADA Security Models

Supervisory control and data acquisition (SCADA) networks control the critical infrastructure of many countries. The lack of security in the SCADA networks has caused an urgency to upgrade existing systems to withstand hostile attacks. When new security models are proposed to enhance security of SCADA systems, the models have to be tested to verify that they provide the intended security. In this research, vulnerability and threat analyses are presented as effective methods for testing new SCADA security models. We illustrate the use of these methods on two security models for enhancing SCADA communication protocol. [PUBLICATION ABSTRACT]