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Abstract In recent years, intelligent transportation has made extensive use of the vehicle network made possible by fifth-generation (5G) technology. There are a lot of information security risks with the system because all messages sent between vehicles are broadcast according to the public environment. Thus, this paper proposes a post-quantum lattice-based forward-secure authentication scheme using fog computing to support quantum resistance and satisfy forward security in 5G-assisted vehicular communications. This work is efficiently updated and new secret keys are generated using the group signature for each period. In addition, the key disclosure vulnerabilities present in various conventional group signature systems are rendered moot by our method, which lowers forward security to short integer solution (SIS) hardness. The proposed scheme uses a matrix modular exponentiation and matrix transpose operations for message signature verification.
Al-Mekhlafi et al. (Fri,) studied this question.