Supersingular Isogeny-based Ring Signature

The increasing demand for secure and anonymous transactions raises the popularity of ring signatures, which is a digital signature scheme that allows identifying group possible signers without revealing identity actual signer. This paper presents efficient supersingular isogeny-based linkable schemes will find potential applications in post-quantum technologies. We develop by applying Fiat-Shamir transform on sigma protocol we obtain from interactive zero-knowledge identification adopting ring. also extend our with an additional parameter, i.e., tag provides to detect if signer issues two signatures concerning same preserving anonymity anonymity. size protocols increases logarithmically thanks Merkle trees. show security proofs efficiency analyses offered. Moreover, provide implementation results signature, offers small sizes NIST levels.