An Identity-Based Deniable Ring Signature Scheme Based on SM9 Signature Algorithm
A deniable ring signature scheme allows a ring member to confirm the fact of signing or disavow the claim of signing via protocols without a trusted third party.It strikes a balance between privacy protection and controllable oversight.Combining deniable ring signature technology with identity-based cryptography can not only preserve the main features of the properties,but also overcome the complex problems of managing user public keys and certificates under the traditional public key infrastructure.This paper proposed an identity-based deniable ring signature scheme based on SM9 digital signature algorithm.The scheme realized the confirmation and disavowal of a ring signature.This paper formally proves that the proposed scheme is deemed to satisfy the correctness,unforgeability,anonymity,traceability,and non-frameability.Through experimental efficiency analysis,the proposed scheme demonstrates a clear advantage in both computational efficiency and communication costs.
SM9ring signaturedeniable ring signatureidentity-based
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