Intrusion-detection model integrating anomaly with misuse for space information network

In recent years, following the development of space commutation, space information has become a critical part in space information network and will play a very significant role in winning future information war. A space information network with characteristics such as complex structure, special communication requirement, long delay, dependence on remote maintenance, and fragile ecological environment contains enormous security risks. Therefore, ensuring space information network safety is important. Intrusion-detection model as an important part of a network security system becomes a hot issue in space network security. We propose an intrusion-detection method that integrates anomaly with misuse, which supports automatic updates from a remote ground, and design a distributed intrusion-detection model of space information network.