An efficient authentication scheme for blockchain-based electronic health records

Tang, Fei, Ma, Shuai, Xiang, Yong and Lin, Changlu 2019, An efficient authentication scheme for blockchain-based electronic health records, IEEE access, vol. 7, pp. 41678-41689, doi: 10.1109/ACCESS.2019.2904300.

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Title An efficient authentication scheme for blockchain-based electronic health records
Author(s) Tang, Fei
Ma, Shuai
Xiang, YongORCID iD for Xiang, Yong
Lin, Changlu
Journal name IEEE access
Volume number 7
Start page 41678
End page 41689
Total pages 12
Publisher Institute of Electrical and Electronics Engineers
Place of publication Piscataway, N.J.
Publication date 2019
ISSN 2169-3536
Keyword(s) Electronic health records
Identity-based signatures
Multiple authorities
Science & Technology
Computer Science, Information Systems
Engineering, Electrical & Electronic
Computer Science
Summary In traditional electronic health records (EHRs), medical-related information is generally separately controlled by different hospitals and thus it leads to the inconvenience of information sharing. Cloud-based EHRs solve the problem of information sharing in the traditional EHRs. However, cloud-based EHRs suffer the centralized problem, i.e., cloud service center and key-generation center. This paper works on creating a new EHRs paradigm which can help in dealing with the centralized problem of cloud-based EHRs. Our solution is to make use of the emerging technology of blockchain to EHRs (denoted as blockchain-based EHRs for convenience). First, we formally define the system model of blockchain-based EHRs in the setting of consortium blockchain. In addition, the authentication issue is very important for EHRs. However, existing authentication schemes for blockchain-based EHRs have their own weak points. Therefore, in this paper, we also propose an authentication scheme for blockchain-based EHRs. Our proposal is an identity-based signature scheme with multiple authorities which can resist collusion attack out of N from N-1 authorities. Furthermore, our scheme is provably secure in the random oracle model and has more efficient signing and verification algorithms than existing authentication schemes of blockchain-based EHRs.
Language eng
DOI 10.1109/ACCESS.2019.2904300
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, IEEE
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