A Lattice-based Provably Secure Multisignature Scheme in Quantum Random Oracle Model.
Masayuki Fukumitsu, Shingo Hasegawa · IACR Cryptology ePrint Archive · 2021
The multisignature schemes are attracted to utilize in some cryptographic applications such as the blockchain. Though the lattice-based constructions of multisignature schemes exist as quantum-secure multisignature, a multisignature scheme whose security is proven in the quantum random oracle model (QROM), rather than the classical random oracle model (CROM), is not known.