A Lattice-Based Certificateless Traceable Ring Signature Scheme

A ring signature (RS) scheme enables a group member to sign messages on behalf of its without revealing the definite signer identify, but this also leads abuse anonymity by malicious signers, which can be prevented traceable signatures (TRS). Up until that point, have been secure based difficult problem number-theoretic (discrete logarithms or RSA), since advent quantum computers, traditional may no longer secure. Thus Feng proposed lattice TRS, are resistant attacks computers. However, works did not tackle certificate management problem. To close gap, quantum-resistant certificateless TRS was in study. best our knowledge, is first TRS. In detail, specific combined with lattice-based technology solve while avoid key escrow Additionally, better zero-knowledge protocol used improve computational efficiency scheme, and reducing soundness error protocol, number runs reduced, so communication overhead reduced. Under random oracle model, satisfies tag-linkability, anonymity, exculpability SIS DLWE conclusion, more practical promising e-voting.