The application discloses a
network security situation intelligent
perception and dynamic defense method for a smart park, relates to the technical field of
network security, and solves the technical problems that the traditional defense is difficult to predict the intention of an attacker and unknown threats, multi-region defense lacks cooperation and is prone to strategy conflicts, the defense strategy is fixed and single, and it is difficult to balance protection, dynamic
estimation of an implicit parameter of an attacker, reduction of information difference, modeling of an attacker type and intention as an implicit variable, dynamic
estimation of a posterior distribution through Bayesian updating, support of a psychological deterrence type
active defense strategy based on dynamic
estimation of an attacker type, targeted design of a deterrence utility function, guidance of a defense strategy from passive interception to active deterrence, training of a globally optimal flexible defense strategy, combination of PPO+GAE training of a global strategy, automatic generation of IP hopping, port
randomization, path deception and other flexible defense actions under multi-target constraints, and avoidance of the limitations of a single defense action.