System Broadcast Information Authentication Protocol Based on Certificateless Signature for 5G Network
The popularization of 5G technology has promoted the development of productivity in various industries,but the security of 5G networks has gradually become prominent,and the security of base stations,as a hub connecting user equipment and the core network,has attracted much attention.Due to the lack of authenticity and integrity protection of the system information messages sent by the base station through broadcasting,attackers can modify the system information messages to attract user devices to connect to the fake base station during initial access or cell reselection,so as to launch a variety of subsequent attacks.In order to solve this problem,this paper proposed a base station identity authentication protocol based on certificateless signature,which provided a method for user equipment to verify the legitimacy of base station broadcasting system messages,and optimized the selection of signed messages,the overhead of signing and verification,and the defense against replay attacks.Simulation results show that the computational overhead introduced by this scheme is acceptable to the base station and user equipment,and compared with the existing base station identity authentication protocols,the proposed scheme improves the security and achieves the minimum signature length.
5G air interfacepseudo base stationsidentity authenticationcertificateless public key cryptography
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