Attack detection device, attack detection method, and non-transitory computer-readable recording medium
US10567400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Jan 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40215
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An attack detection device executes a process that includes receiving a message periodically transmitted from a communication device in a network, calculating a reception range for receiving a message including identification information in a reference message selected from the received messages by using a transmission period of a message identified by the identification information, the message being transmitted two or more periods after the reference message, storing the reception range associated with an order of reception of a message predicted to be received in the reception range when the reference message is used as a reference, and determining that an attack on the network is detected when a reception time of the received message including the identification information is not within the reception range associated with the order of reception of the received message in a case where the reference message is used as a reference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.