MuSig-L: Lattice-Based Multi-Signature With Single-Round Online Phase

ePrint Report: MuSig-L: Lattice-Based Multi-Signature With Single-Round Online Phase

Cecilia Boschini, Akira Takahashi, Mehdi Tibouchi

Multi-signatures are protocols that allow a group of signers to jointly produce a single signature on the same message. In recent years, a number of practical multi-signature schemes have been proposed in the discrete-log setting, such as MuSigT (CRYPTO'21) and DWMS (CRYPTO'21). The main technical challenge in constructing a multi-signature scheme is to achieve a set of several desirable properties, such as (1) security in …

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