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

Claim 7:
8. The attack tree generation device according to claim 4,
wherein the processing circuitry
treats the root system as a parent system, and selects a sub-system located one position before the parent system on the intrusion course, as a child system, and
treats the root tree as a parent tree, divides one terminal node or more of the parent tree into one terminal node group or more, then with making each of one terminal node group or more of the parent tree a root node, starts an attack tree generation process, and at a stage where an intrusion node signifying intrusion into the child system appears individually in one course or more included in an attack tree being generated, with making the intrusion node appearing in the individual course a terminal node in the course, suspends the attack tree generation process, to thereby generate one child tree or more.