LLRing: Logarithmic Linkable Ring Signatures with Transparent Setup

ePrint Report: LLRing: Logarithmic Linkable Ring Signatures with Transparent Setup

Xiangyu Hui, Sid Chi-Kin Chau

Linkable ring signatures are an important cryptographic primitive for anonymized applications, such as e-voting, e-cash and confidential transactions. To eliminate backdoor and overhead in trusted setup, transparent setup in the discrete logarithm or pairing settings has received considerable attention in practice. Recent advances have improved the proof sizes and verification efficiency of linkable ring signatures with transparent setup to achieve logarithmic bounds. Omniring (CCS `19) …

applications backdoor cash confidential cryptographic eprint report important report ring settings sid signatures transactions voting