核电厂安全级DCS拒绝服务攻击及防御策略研究

Research on Denial-of-service Attack and Defense Strategy of Safety Class DCS in Nuclear Power Plant

在核电厂安全级DCS的设计中,为了保证工业过程的可靠、稳定,将系统的可用性作为其信息安全研究的首要性要求。拒绝服务攻击能够对被攻击系统的可用性造成极大损害。为了减少拒绝服务攻击对核电厂DCS可用性的威胁,分析了核电厂安全级DCS的特点及脆弱性;以某安全级DCS平台为对象进行了拒绝服务攻击测试;根据系统遭受拒绝服务攻击的情况有针对性地提出了有效的防御策略。

In order to ensure the reliability and stability of the industrial process,the availability of the system is regarded as the primary requirement of information security research in the design of the safety class DCS of nuclear power plants.Denial-of-service attack can cause great damage to the availability of the attacked system.In order to reduce the denial of service attacks on the threat of a nuclear power plant DCS availability,this paper analyzes the characteristics and vulnerability of the safe DCS in nuclear power plant,then tests the denial-of-service attack on a certain safety class DCS platform,and puts forward effective defense strategies according to the situation of the system being subjected to denial-of-service attack.