TFAS: two factor authentication scheme for blockchain enabled IoMT using PUF and fuzzy extractor

【Author】 Singh, Namrata; Das, Ayan Kumar

【Source】JOURNAL OF SUPERCOMPUTING

【影响因子】2.557

【Abstract】Security vulnerabilities associated with Internet of Medical Things (IoMT) may lead to health disasters. The researchers already have designed several lightweight authentication techniques to provide secure communication towards physical layer security in a heterogeneous IoMT environment. Blockchain technology is utilized to solve the existing security issues of IoMT ensuring the network layer security. This paper presents a lightweight two factor authentication scheme (TFAS) for a blockchain-enabled IoMT environment which focuses on both the physical and network layer security without involvement of any centralized third party. The proposed TFAS involves device, user and data authentication along with user authorization for improved access control of medical data. It is a two-phase authenticity verification method which involves the authentication of users and devices using the PUF and fuzzy extractor in the first phase and blockchain-based data authentication along with authorization of users in the second phase. It also improves storage capacity of blockchain-enabled IoMT network and ensures its scalability using a cluster of smart-contract enabled inter planetary file systems servers. The formal security analysis has been performed using the real-or-random model for evaluating security of session key and mutual authentication protocol. The informal security analysis provides strong evidences for resilience of TFAS from various known attacks. Moreover, the proposed scheme outperformed other existing schemes in terms of communication cost, computational cost and storage.

【Keywords】IoMT; Blockchain; PUF; Fuzzy extractor; IPFS

【发表时间】2023 2023 JUL 4

【收录时间】2023-07-20

【文献类型】理论模型

【主题类别】

区块链技术-协同技术-身份验证