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

Claim 8:
9. The attack tree generation device according to claim 8,
wherein the processing circuitry
treats a last-time child system as a this-time parent system, and selects a sub-system located one position before the this-time parent system on the intrusion course, as a this-time child system, and
treats each of last-time one child tree or more as a this-time parent tree, divides one terminal node or more of the this-time parent tree into one terminal node group or more, then with making each of the one terminal node group or more of the this-time parent tree a root node, starts an attack tree generation process, and at a stage where an intrusion node signifying intrusion into the this-time 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 for the this-time parent tree.