ISSN: 2222-6990
Open access
This paper compares four types of digital signature algorithms ECDSA, EdDSA, Schnorr, and AHDSA in the context of blockchain-based healthcare applications in terms of performance and scalability. The research assessed efficiency, transaction stability, latency, resource usage and quantum threat resilience with Hyperledger Fabric and NS3 simulations. Findings indicate that EdDSA had the highest transaction processing time, and AHDSA had the best balance of all, with high resource efficiency and security, including the high quantum resistance. On the contrary, ECDSA and Schnorr were slower and consumed more resources, with the latter exhibiting the most variability. The results indicate that it is crucial to choose the protocols both in terms of security but also scalability and real time responsiveness. AHDSA and EdDSA become the most appropriate candidates in terms of future healthcare blockchain deployments. It is suggested that these results should be further tested on a large scale and in the real world to confirm their applicability to real-world healthcare settings.
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