Device and method for detecting attack in network
US10567401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Feb 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40273
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An attack detection device includes a transceiver and a processor. The transceiver receives a message from a communication device in a network. The processor calculates, according to a reception time of a first message in periodic messages that are periodically transmitted in a specified transmission cycle in the network, a reception range for a target message in the periodic messages that are received after the first message by the transceiver. When the transceiver receives a second message that is associated with information indicating that the second message is transmitted at a time interval shorter than the transmission cycle outside of the reception range after the reception time of the first message, the processor updates the reception range for a target message in the periodic messages that are received after the second message by the transceiver according to a reception time of the second message and the transmission cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.