Abstract:

Information security situation of industrial control system is grim and cannot be ignored which produces serious threat to social stability and national security. The information security of industrial control system is different from the traditional information security, and the traditional information security is usually not applicable to the field of industrial control system information security. This paper analyzes the characteristics of industrial control system, expounds the current information security situation of industrial control system by analyzing the report produced by the industrial control systems cyber emergency response team of the USA, and puts forward a model of industrial control system security defense which contains the industrial control system security protection system, key technologies and safety life cycle. The research production of security protection system can guide key technologies research and safety life cycle building. The research production of key technologies can be converted into special safety protection products in all stages of the safety life cycle, and provides the corresponding technologies and tools though all stages of the safety life cycle. The model can provide technology and management support for the field of industrial control system information security.

Key words: industrial control system, information security, security defense