Hierarchical Filtering Access Control Based on Blockchain in the Medical Emergency Application

Access control, as a security mechanism governing system resources access, integrates with blockchain to reinforce decentralization, enhance data security, and ensure that only authorized users can access and execute specific operations. To optimize access control in the context of blockchain, enhance response speed, and address the requirements of the medical emergency application, this paper proposed a Hierarchical Filtering Access Control (HFAC) model based on blockchain. This model integrates blockchain, smart contract, access control list, attribute-based access control, and token. The experimental result showed that HFAC exhibits outstanding performance in average response time, making it particularly suitable for emergency vehicle dispatch platforms. This paper provided a feasible solution for the efficient operation of emergency vehicle dispatch systems in the medical emergency application.