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A secure and decentralized SSI authentication protocol with privacy protection and fine-grained access control based on federated blockchain

Author

Listed:
  • Binhao Ma
  • Xurui Zheng
  • Can Zhao
  • Yibing Wang
  • Dejun Wang
  • Bo Meng

Abstract

Self-sovereign identity authentication protocol is an active research topic in the field of identity authentication and management. However, the current SSI authentication protocols pay little attention to privacy protection and the fine-grained access control. Therefore, a secure and decentralized SSI authentication protocol with privacy protection and fine-grained access control is proposed. Firstly, the formal model of SSI including the SDPP-SSI identity model and management model is presented. And then, based on the federated blockchain, the distributed identifier is used as a global identifier for users in the decentralized domain. Finally, the verifiable statement is encapsulated using a policy control signature supporting privacy protection to develop the user’s access control for identity registration in the centralized domain. Compared with the related work (Lin 2018, Zhu 2018, Stokkink 2018, Hammudoglu 2017, Othman 2017, Abraham 2018, Guan 2019, Lin 2019) from controllability, security, flexibility, privacy protection, authentication and fine-grained access control, the proposed SSI authentication protocol not only meets controllability, authentication, and flexibility, but also supports privacy protection and fine-grained access control.

Suggested Citation

  • Binhao Ma & Xurui Zheng & Can Zhao & Yibing Wang & Dejun Wang & Bo Meng, 2022. "A secure and decentralized SSI authentication protocol with privacy protection and fine-grained access control based on federated blockchain," PLOS ONE, Public Library of Science, vol. 17(9), pages 1-26, September.
    • Handle: RePEc:plo:pone00:0274748
    DOI: 10.1371/journal.pone.0274748
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