Privacy Preservation Authentication: Group Secret Handshake with Multiple Groups

Dong Han, Zhen Li, Mengyu Wang (), Chang Xu () and Kashif Sharif
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Dong Han: School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China
Zhen Li: School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China
Mengyu Wang: School of Cyberspace Science & Technology, Beijing Institute of Technology, Beijing 100081, China
Chang Xu: School of Cyberspace Science & Technology, Beijing Institute of Technology, Beijing 100081, China
Kashif Sharif: School of Computer Science & Technology, Beijing Institute of Technology, Beijing 100081, China

Mathematics, 2023, vol. 11, issue 3, 1-11

Abstract: The technique of group secret handshake (GSH) has been used to help the members affiliated with the same group in achieving private authentication. After executing GSH protocols, the participants affiliated with the group can compute a shared secret key, or generate a public encryption key while the true participants can self-compute their decryption keys. This paper presents a concrete GSH protocol with Multiple Groups. Only a legitimate member can prove that it belongs to a set of legitimate affiliations, but which affiliation it belongs to will not be leaked. The Group Authority can reveal the real identities of the fellows in the proposed scheme after analyzing the flow of communication. The proposed scheme can provide affiliation-hiding and detectability. In addition, it achieves Perfect Forward Secrecy.

Keywords: ring group signature; authentication; group key exchange; privacy (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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