Abstract

An unlinkable secret handshake allows two members from the same groups to secretly distinguish each other. In this paper, a new unlinkable secret handshake scheme is constructed to achieve fuzzy matching. The proposed scheme supports more flexible threshold-based appropriate matching under the multiple-groups environment, which is not limited to authenticate between members from the same groups. Our new scheme is constructed from the fuzzy identity-based encryption scheme and constant-size group signature. Without using the random oracle, the new scheme is proved secure by assuming the intractability of the decisional bilinear Diffie-Hellman problems. Compared with previous works, our proposed scheme is adaptive to realize for many different applications.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.