Passive physical layer distinct native attribute cyber security monitor
US11856012B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2023 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Mar 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/79
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for cyber security monitor includes monitoring a network interface that is input-only configured to surreptitiously and covertly receive bit-level, physical layer communication between networked control and sensor field devices. During a training mode, a baseline distinct native attribute (DNA) fingerprint is generated for each networked field device. During a protection mode, a current DNA fingerprint is generated for each networked field device. The current DNA fingerprint is compared to the baseline DNA fingerprint for each networked field device. In response to detect at least one of RAA and PAA based on a change in the current DNA fingerprint to the baseline DNA fingerprint of one or more networked field devices, an alert is transmitted, via an external security engine interface to an external security engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.