Patent ID: 11899788
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. The attack tree generation device according to claim 1,
wherein the processing circuitry
acquires rule basic information corresponding to a type of the root system, as root system basic information from a rule basic information database in which a plurality of system types and a plurality of pieces of rule basic information are associated with each other, and acquires rule basic information corresponding to a type of each descendant system, as descendant system basic information from the rule basic information database,
executes an inference rule generation process using only the root system basic information among the plurality of pieces of rule basic information, to thereby generate a root system inference rule, and executes the inference rule generation process using only each descendent system basic information among the plurality of pieces of rule basic information, to thereby generate each descendent system inference rule,
executes the attack tree generation process using the root system inference rule, to thereby generate the root tree, and
executes the attack tree generation process using each descendent system inference rule, to thereby generate each descendent tree.