Secure Blockchain-based Single Sign-On with Zero-Knowledge Proof Authentication
Jiahui Xiang, Osman Salem, Ahmed Meahoua, Santichai Wicha, Pradorn Sureephong · 2025
Authentication is crucial in Identity and Access Management (IAM), especially within the Internet of Medical Things (IoMT), where security is critical. This paper proposes a solution to strengthen IoMT authentication, addressing its vulnerabilities and resource constraints. By leveraging blockchain as an Identity Provider (IdP) and integrating Zero-Knowledge Proof (ZKP) authentication, alongside Single Sign-On (SSO) standards, the proposed framework enhances security while simplifying the authentication process. Sharing the computational burden between the blockchain and client-side devices optimizes resource utilization, mitigating the strain on IoMT resources. Experimental results demonstrate improved RAM and computing power efficiency. This approach offers a robust solution to IoMT authentication challenges, promising heightened security and efficiency in healthcare IoT ecosystems. By fortifying authentication mechanisms, this framework contributes significantly to securing sensitive medical data and ensuring seamless access for authorized users in IoMT environments.