Cryptanalysis and improvement of a biometrics-based authentication and key agreement scheme for multi-server environments

• Li Yang ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: yangli73@buaa.edu.cn (LY); zzheng@pku.edu.cn (ZMZ)

  Affiliations Key Laboratory of Mathematics, Informatics and Behavioral Semantics, Ministry of Education, Beihang University, Beijing, China, School of Mathematics and Systems Science, Beihang University, Beijing 100191, China

  http://orcid.org/0000-0003-0314-503X

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• Zhiming Zheng

  Roles Conceptualization, Data curation, Investigation, Validation, Visualization, Writing – review & editing

  * E-mail: yangli73@buaa.edu.cn (LY); zzheng@pku.edu.cn (ZMZ)

  Affiliations Key Laboratory of Mathematics, Informatics and Behavioral Semantics, Ministry of Education, Beihang University, Beijing, China, School of Mathematics and Systems Science, Beihang University, Beijing 100191, China

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