Communication System and Method for Securely Transmitting Time-Critical Data within the Communication System

Abstract: a method for securely transmitting time-critical data within a communication system including local networks in which data are transmitted via switching, at least one network superimposed with respect to the local networks, in which data are transmitted via routing, and a gateway system for connecting the communication system to an unsecured external network, wherein network layer communication via the superimposed network is authorized only between authenticated system components, switches authenticate connected terminal devices and assign these to a physical or logical local network in accordance with a respective terminal device identity, security layer communication is authorized within the local networks implicitly based on an assignment of respective terminal devices to the same local network, communication at osi layer 3-7 between terminal devices of different local networks or with terminal devices in the unsecured external network is authorized via zero trust proxies that are each assigned to a local network.

Inventor(s): Wolfgang SCHWERING, Frank LAURIG, Peter SCHÖNEMANN, Nils GEDICKE, Volker GSÄNGER

CPC Classification: H04L63/0227 ({Filtering policies (mail message filtering )})

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