Revocable and linkable ring signature
Published in International Conference on Information Security and Cryptology (Inscrypt 2019), 2019
Keywords: Ring signature, Ring confidential transaction, Revocability, Linkability
In this paper, we construct a revocable and linkable ring signature (RLRS) scheme, which enables a revocation authority to revoke the anonymity of the real signer in linkable ring signature scheme under any circumstances. In other words, the revocability of RLRS is mandatory. The proposed RLRS scheme inherits the desired properties of group signature (anonymity revocation) and linkable ring signature (spontaneous group formation and linkability). In addition, we proved the security of our scheme in the random oracle model. We also provided a revocable ring confidential transaction protocol based on our RLRS scheme, which embedded the revocability in ring confidential transaction protocol.
Recommended citation: Zhang, Xinyu, Joseph K. Liu, Ron Steinfeld, Veronika Kuchta, and Jiangshan Yu. "Revocable and linkable ring signature." In Information Security and Cryptology: 15th International Conference, Inscrypt 2019, Nanjing, China, December 6–8, 2019, Revised Selected Papers 15, pp. 3-27. Springer International Publishing, 2020.
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