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LaBRADOR: Compact Proofs for R1CS from Module-SIS (Beullens, Seiler 2023)

Last modified: 2026-10-27

Summary

A lattice-based proof system for R1CS whose proofs are much smaller than hash-based alternatives at post-quantum security, built on Module-SIS with a recursive amortization technique (CRYPTO 2023). Cited in BL26-SoK-AnonCreds among the lattice-based proof systems that are natural candidates once credentials move to lattice signatures such as ML-DSA.