Space Information Security and Cyberspace Defense Technology

Cyberspace countermeasure brings huge threat for space system, which relies on information network heavily. Usually, the position of most space information network nodes is fixed, and the messages transfer in standard format. As a result, space information network is vulnerable to cyberspace attack based on offensive information access. In this paper, space information network characteristic and cyberspace security requirement are analyzed. A new situation awareness and information defense strategy is proposed by combining multi-domain approaches, and the key model, method and technology are studied. The research results can provide reference for space information network security research and cyberspace defense technology research.