Research on Security Protection of Space-Earth Integrated Network Wireless Link Based on Consortium Blockchain Technology and Application

The space-earth integrated network is an important strategic resource of China, but its wireless link is inherently vulnerable to cyber threats. Meanwhile, the traditional security protection technology is not suitable for its special network characteristics and lightweight deployment requirements. At the same time, the centralized security management model is prone to systemic risks of single-point breakthroughs. In order to effectively ensure the efficient operation, security and credibility of the space-earth integrated network, the consortium blockchain technology system is applied to the wireless link security protection of the space-earth integrated network to meet the current security requirements such as trusted access of space-earth integrated network terminals, secure interconnection of nodes and network attack supervision, and provides an exploration direction for the construction of the space-earth integrated network security protection system.