车联网环境下基于多策略访问树的 安全访问控制算法.

In the context of the Internet of Vehicles, traditional resource access control techniques are inefficient and present security risks. Therefore, this paper proposed an innovative resource access control solution based on a multi-strategy access tree algorithm. This solution improved the traditional single-strategy access tree by transforming it into a multi-strategy access tree, achieving multi-level strategy formulation and effectively enhancing the efficiency of policy access and fine-grained access to re- sources. In addition, the solution solved the security issue of access control authorization in the Internet of Vehicles by introducing the Lagrange polynomial secret value recovery mechanism, which combined the secret value with the authorization token. through security analysis, it have proved that the solution has identity anonymity and message non-repudiation. Performance analysis reveals that, in comparison to other solutions, the scheme has lower storage overhead in the policy execution system by utilizing the multi-strategy access tree to store policies. Moreover, as the efficiency of policy matching increases, the computational overhead significantly diminishes, indicating that the solution is well-suited for secure and efficient resource access control in the context of the Internet of Vehicles. [ABSTRACT FROM AUTHOR]