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US 11,454,944 B2Granted
Automated certificate management
AssigneeSiemens Aktiengesellschaft
InventorsBenjamin Lutz, Anna Palmin
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AssigneeSiemens Aktiengesellschaft
InventorsBenjamin Lutz, Anna Palmin
Estimating the term…
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.
A method for at least one of initially allocating and renewing certificates for at least one of devices and applications in a control system for a technical installation based on the certificates, at least one of the devices and applications, within a framework of at least one of the initial allocation and renewal of the certificates, utilizing a certificate management protocol to post a certificate request at at least one certification authority of the technical installation, the method comprising:
A certification service for a control system of a technical installation, said certification service including a processor and being utilizable by at least one of devices and applications of the technical installation and being configured to generate a stateless alarm message and to provide said generated stateless alarm message in the control system when a certificate request previously posted by at least one of a device and an application is unanswered by a certification authority of the control system within a previously determined period of time;
A control system for a technical installation, comprising:
Dependencies are inferred from the claim text.