Security system for industrial control infrastructure
US9817391B2 · kind B2 · utility
2Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | May 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/36542
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An industrial control system providing security against tampering or modification generates periodic state thumbprints defining a state of control elements that may be forwarded to a security or safety appliance for comparison to a benchmark thumbprint indicating no tampering. The transmitted state thumbprint may capture not only programs but also configuration and environmental states of the control element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.