A Backward Unlinkable Secret Handshake Scheme with Revocation Support in the Standard Model

Information

Yamin Wen²  Zheng Gong³  Lingling Xu¹  Qiong Huang⁴ 

[1] School of Computer Science and Technology, South China University of Technology, Guangzhou 510641, China; E-Mail:;School of Mathematics and Statistics, Guangdong University of Finance & Economics, Guangzhou 510320, China; E-Mail:;School of Computer Science, South China Normal University, Guangzhou 510631, China;School of Mathematics and Statistics, Guangdong University of Finance & Economics, Guangzhou 510320, China; E-Mail

关键词: secret handshakes;    mutual authentication;    backward unlinkability;    revocation;    standard model;   

DOI  :  10.3390/info6040576

来源: mdpi

【 摘 要 】

Secret handshake schemes have been proposed to achieve private mutual authentications, which allow the members of a certain organization to anonymously authenticate each other without exposing their affiliations. In this paper, a backward unlinkable secret handshake scheme with revocation support (BU-RSH) is constructed. For a full-fledged secret handshake scheme, it is indispensable to furnish it with practical functionality, such as unlinkability, revocation and traceability. The revocation is achieved in the BU-RSH scheme, as well as the unlinkability and the traceability. Moreover, the anonymity of revoked members is improved, so that the past transcripts of revoked members remain private, i.e., backward unlinkability. In particular, the BU-RSH scheme is provably secure in the standard model by assuming the intractability of the ℓ-hidden strong Diffie-Hellman problem and the subgroup decision problem.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.