Patent ID: 9712328
Date: 2017-07-18
CPC Classifications: H04B,H04L

Claim:
1. A network node for a computer network for data transmission between network nodes, the network nodes being authenticatable to one another by authentication information of a public key infrastructure, the computer network comprising: a root certificate authority disposed in a first region with limited physical access disposed within a cockpit of an aircraft, and arranged separate from the computer network without being linked to the computer network, the functions of the root certificate authority are directly accessible to only persons with access authorization for the first region with limited physical access disposed within the cockpit of the aircraft, the root certificate authority comprising: a signing device configured to generate the authentication information for the public key infrastructure, and a wireless short-distance data transmission device with a communication range that does not extend beyond the first region, the wireless short-distance data transmission device communicating with the network node while the network node is within the communication range that does not extend beyond the cockpit; and the network node comprising: an authentication information storage; a processor; a network communication device; and an initialization device including an initialization communication device and a temporary authentication information storage, the processor being configured to read information from the temporary authentication information storage.