关键词: 内生安全, DHR架构, 调度策略, 时机选择, 执行体数量

Abstract: In order to improve the efficiency and robustness of the endogenous security scheduling strategy, a scheduling timing and quantity elastic adjustment method is designed. This method first proposes a scheduling trigger, which uses the two attributes of working time and abnormal feedback to control the switching of scheduling process, and designs the overall flow of scheduling work considering system heterogeneity and redundancy. Then it constructs problem model using historical attack feedback, and designs formulas to dynamically calculate the values for different attack scenarios. Finally, a simulator is designed to simulate different attack scenarios and compare the operation results of each algorithm. Results show that this method can cope with complex internal and external environment through adaptive adjustment, and provide better security for DHR structure. At the same time, it improves the utilization rate of the executor, reduces redundant resource waste, achieves higher security gain with lower system overhead, and outperforms other single strategies, which has strong practicality.

Key words: endogenous security, DHR (dynamic heterogeneous redundancy) structure, scheduling strategy, scheduling timing, number of actuators