CERNET Authentication and Resource Sharing Infrastructure (CARSI) of China Education and Research Computer Network is managed by CERNET Network Center of China Education and Research Computer Network, and Peking University Computing Center develops and provides technical support. Searle Network Co., Ltd. provides daily operations and user services, and provides federal certification and global academic information resources access services for universities and scientific research units that have established unified identity certification for campus networks. After joining CARSI, teachers and students in colleges and universities can directly access academic resources such as electronic journals and electronic books purchased by the school by using campus network accounts anywhere outside the school, and can also access characteristic resources anytime and anywhere, such as genuine software PDF editors, high-performance computing resources, patent data and so on, without having to confirm their identities through campus IP addresses and VPN.