A novel self-certified security access authentication protocol in the space network

In order to meet the security need of space network, the access authentication model was proposed. On the basis of that, the self-certified authentication protocol was designed according to “challenge-response” scheme. Moreover the security of the protocol was analyzed and the implement process was simulated. The simulation results shows, the access authentication time of space network user is mainly affected by the data processing time and communication link error rate. The research conclusion of this paper has important meaning to the space network security access authentication.