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Blockchain technology, with its unique decentralized and tamper-resistant features, is being utilized to address the issue of information silos in traditional electronic healthcare. However, as healthcare data sources become increasingly complex and numerous, the limited scalability and transaction throughput of traditional blockchains result in challenges such as slow processing efficiency and vulnerability to attacks in modern healthcare blockchain systems. To address these issues, we propose a Dynamic Security Resource Configuration scheme based on Medical Consortium Blockchain (MC-DSC). This scheme allows for dynamic blockchain configuration based on the varying urgency levels of data, enhancing data processing efficiency. It ensures the security of the data processing process through identity control and data encryption methods. Experimental results demonstrate that, compared to existing blockchain configuration algorithms (SsHealth and Medge-Chain), the proposed scheme achieves approximately a 15% performance improvement by dynamically configuring the blockchain for three data types (secure, urgent, and normal). Additionally, the security module accounts for only 7% of the total time overhead, efficiently safeguarding the security of healthcare data while effectively handling data with different urgency levels.
Liang et al. (2024) studied this question.