【摘要】 安全仪表系统(SIS)是工业生产过程中至关重要的安全保护层，其信息安全一旦遭受攻击或破坏极易产生严重的事故后果。当前有不少安全仪表系统安全设计考虑不足，安全技术融合应用深度不够，为解决SIS设计实施和运行维护全寿命期信息安全工作难点问题，分析SIS信息安全面临的主要挑战，阐述SIS全寿命期信息安全的理念，研究信息安全风险评估的流程和主要内容，提出信息安全定级模型和信息安全规格书编制要求；分别针对SIS设计实施和运行维护阶段，构建相应的信息安全工作策略和方法。研究结果可为SIS信息安全全寿命的工作提供有力的技术指导和参考，进一步增强SIS的信息安全风险防控能力。更多还原

【Abstract】 The safety instrumented system(SIS) is a crucial safety protection layer in industrial production process, once its cyber-security is attacked or destroyed, it will easily lead to serious accident consequence.At present, the cyber-security design of many SIS are insufficiently considered, and the integration and application of security technology in SIS is not enough.In order to solve the difficult problems of cyber-security work in the all-life-cycle of SIS including design, implementation, operation and maintenance, the main challenges of SIS cyber-security were analyzed, and the idea of SIS all-life-cycle cyber-security was expounded.The process and main contents of cyber-security risk assessment were studied, and the requirements of cyber-security grading model and cyber-security specification formulation were put forward.For the SIS design and implementation, operation and maintenance stages, the corresponding cyber-security work strategies and methods were constructed.The research results can provide strong technical guidance and reference for the SIS cyber-security all-life-cycle work, and further enhance the SIS cyber-security risk prevention and control capabilities.更多还原