The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2022
Filed:
Apr. 22, 2019
Siemens Aktiengesellschaft, Munich, DE;
Benjamin Lutz, Pfinztal, DE;
Anna Palmin, Karlsruhe, DE;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
A method for initially allocating and/or renewing certificates for devices and/or applications in a control system for a technical installation on the basis of certificates, wherein the devices and/or applications, within a framework of the initial allocation and/or renewal of the certificates, use a certificate management protocol to post a certificate request at at least one certification authority of the technical installation, where the devices and/or applications, in addition to the certificate management protocol, implement a certification service that generates a stateless alarm message and provides this generated stateless alarm message in the control system, when a certificate request previously posted by the device and/or the application is unanswered by the certification authority after expiration of a previously determined period of time.