Patent · US Active

Method for authorized updating of an automation technology field device

US10402190B2 · kind B2 · utility

1Cited by

1References

9Claims

0Family size

Assignee

Endress+Hauser Conducta GmbH+Co. KG · DE

Inventors

Björn Haase · Stuttgart, DE
Ralf Schmidt · Nuremberg, DE
Markus Kilian · Merzhausen, DE
Helmut Kalteis · Marktoberdorf, DE

Key dates

Filing date	May 31, 2018
Grant date	Sep 3, 2019
Priority date	—
Expiry date	May 31, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06F8/658
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for authorized updating of first operating software of a field device which is used in an automation technology installation, wherein an authentication test of second operating software for the field device is performed, which second operating software is signed by means of a first private key associated with the installation, wherein, within the scope of the authentication test, the signature, generated by the first private key, of the second operating software is authenticated by means of a first public key associated with the installation, and wherein, in the event that the authentication test has been performed successfully, the first operating software located on the field device is at least partially replaced by the second operating software.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.