Netzwerkrouting unter Benutzung eines ungesicherten Routers

摘要

A trusted guard unit is used in a red/black secure environment to enable an untrusted router to be used to generate routing information for confidential data. The trusted guard generates a dummy message by substituting dummy data for confidential data in a message to be routed from a red environment to a black environment. The dummy message is sent to an untrusted router to generate routing information for use in routing the confidential data, but without the untrusted router receiving the confidential data. Another trusted guard receives from the router the dummy message with the routing information, and substitutes the confidential data for the dummy data in the dummy data message to generate a transmission frame to send to a destination node.