Blockchain Heterogeneous Network Authentication Scheme Based on Batch Verification Group Signature

The application of blockchain technology in the field of wireless communication authentication is becoming more and more widespread. The adoption of blockchain access schemes with composite security features is an important research direction in the current wireless access field. Meanwhile, the authentication scheme needs to reduce the process steps and improve the efficiency on the basis of protecting the identity privacy of the access device. In this article, with identity-based cryptography (IBC) as the core, a group signature algorithm supporting batch verification is constructed. Meanwhile, the proposed algorithm is the main component to design a blockchain-based heterogeneous network authentication scheme. Through security analysis, it is proved that the group signature algorithm can carry out multiuser batch authentication under the conditions of unforgeability, anonymity, and unlinkability. And through efficiency analysis, it can be seen that the authentication scheme can significantly reduce the number of pairwise operations in multiuser authentication, thus improving the efficiency of the authentication scheme by nearly 30.7%.