公开(公告)号：US20210397702A1

公开(公告)日：2021-12-23

申请号：US17466289

申请日：2021-09-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi AMANO ,  Yusuke NEMOTO ,  Minehisa NAGATA ,  Yosuke TAJIKA

IPC: G06F21/55

Abstract: A risk analyzer analyzing a risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a degree of safety of each N element against a threat to security, a connection relationship of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, among one or more paths from the entry point to the defense target, based on the degrees of safety and the connection relationship of the N elements, a target path in which a total sum of the degrees of safety of elements passed while the target path extends from the entry point to the defense target is lower than a threshold value; and an outputter outputting path information on the target path.

公开(公告)号：US20210400079A1

公开(公告)日：2021-12-23

申请号：US17466207

申请日：2021-09-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi AMANO ,  Yusuke NEMOTO ,  Minehisa NAGATA ,  Yosuke TAJIKA

IPC: H04L29/06 ,  G06F21/71

Abstract: A risk analyzer analyzing risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a cost of each N element for increasing a safety degree against a threat to security, a connection relationship of at least part of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, based on the cost of each N element and the connection relationship, a target element of one or more elements requiring a minimum total cost necessary for cutting off a target path from the entry point to the defense target by increasing a safety degree of one or more elements on the target path to a threshold value or more; and an outputter outputting element information indicating the target element.