Title:
不正侵入防止装置、不正侵入防止方法および不正侵入防止プログラム
Document Type and Number:
Japanese Patent JP6577442
Kind Code:
B2
Abstract:
An intrusion prevention device (10) receives, from a control target device (30), a notification indicating a state of the control target device (30). The intrusion prevention device (10) receives a control command transmitted from a control device (20) to the control target device (30). When receiving the control command, the intrusion prevention device (10) determines whether to permit or block passage of the control command in accordance with the received state of the control target device (30).
Inventors:
Keiichi Okabe
Takaaki Koyama
Jun Miyoshi
Yoshihiro Ito
Naohiko Yoshizumi
Tetsuo Takahashi
Yuki Mori
Toshiyuki Yamada
Naoki Yamazaki
Takaaki Koyama
Jun Miyoshi
Yoshihiro Ito
Naohiko Yoshizumi
Tetsuo Takahashi
Yuki Mori
Toshiyuki Yamada
Naoki Yamazaki
Application Number:
JP2016214566A
Publication Date:
September 18, 2019
Filing Date:
November 01, 2016
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
MITSUBISHI HEAVY INDUSTRIES,LTD.
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
G06F13/00; G06F21/55; G16Z99/00
Domestic Patent References:
| JP2004229148A | ||||
| JP2016162350A | ||||
| JP2013109608A | ||||
| JP2016034066A |
Foreign References:
| WO2015075802A1 |
Attorney, Agent or Firm:
Sakai International Patent Office