Data Anonymous Authentication for BIoMT with Proxy Group Signature
Chaoyang Li, Yalan Wang, Gang Xu, Xiu‐Bo Chen, Xiangjun Xin, Jian Li · Journal of Cyber Security · 2021
Along with the increase of wearable medical device, the privacy leakage problem in the process of transmission between these edge medical devices. The blockchain-enabled Internet of Medical Things (BIoMT) has been developed to reform traditional centralized medical system in recent years. This paper first introduces a data anonymous authentication model to protect user privacy and medical data in BIoMT. Then, a proxy group signature (PGS) scheme has been proposed based on lattice assumption. This scheme can well satisfy the anonymous authentication demand for the proposed model, and provide anti-quantum attack security for BIoMT in the future general quantum computer age. Moreover, the security analysis shows this PGS scheme is secure against the dynamical-almostfull anonymous and traceability. The efficiency comparison shows the proposed model and PGS scheme is more efficient and practical.