Cryptology ePrint Archive: Report 2018/288

Constant Size Traceable Ring Signature Scheme without Random Oracles

Ke Gu and Na Wu

Abstract: Currently several traceable (or linkable) identity-based ring signature schemes have been proposed. However, most of them are constructed in the random oracle model. In this paper, we present a fully traceable ring signature (TRS) scheme without random oracles, which has the constant size signature and a security reduction to the computational Diffie-Hellman (CDH) assumption. Also, we give a formal security model for traceable ring signature and prove that the proposed scheme has the properties of traceability and anonymity.

Category / Keywords: ring signature, traceability, constant size signature, security model

Date: received 16 Mar 2018, last revised 26 Mar 2018

Contact author: gk4572 at 163 com

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Version: 20180328:022939 (All versions of this report)

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