METHOD AND SYSTEM FOR ISSUING PUBLICLY TRUSTED CERTIFICATES, ENGINEERING OR CONTROL SYSTEM, AND TECHNICAL PLANT

A technical plant, a system for issuing publicly trusted certificates for plant components of the technical plant, an engineering or control system for the technical plant, and a method for issuing publicly trusted certificates for plant components of the technical plant, wherein a) a certification module of a plant component, which is intended to receive a publicly trusted certificate, queries a component identifier; b) the certification module transmits the component identifier together with a certificate request for a publicly trusted certificate to a registration authority; c) the registration authority checks, based on the component identifier, whether the component belonging to the component identifier is assigned to an authorized person or an authorized company; d) if so, the registration authority requests a publicly trusted certificate for the component; and e) the requested publicly trusted certificate is issued and transmitted to the certification module.