A Multi-Cryptosystem Supported Authentication Scheme for Internet of Medical Things

Nowadays, the Internet of Medical Things (IoMT) is playing an increasingly important role in maintaining people's daily health. IoMT devices generate a great amount of data that could be used for different applications such as data analysis. Due to the untrusted nature of machine-to-machine (M2M) communication channels, data authenticity is an important issue that must be addressed. Especially, it is challenging to deal with the privacy disclosure which the heterogeneity of IoMT brings about. In this paper, we propose a multi-cryptosystem supported scheme for authenticity in IoMT systems. Our authentication schemes support many kinds of IoMT devices with multi-cryptographic configurations such as RSA-based, DL-based, ECC-based, and Lattice-based cryptosystems. We provide the formalized proof of the unforgeability and privacy of the proposed schemes in the random oracle model. The experimental simulation demonstrates that the proposed schemes are feasible in the heterogeneous IoMT environment.