Chipmunk: Better Synchronized Multi-Signatures from Lattices

ePrint Report: Chipmunk: Better Synchronized Multi-Signatures from Lattices

Nils Fleischhacker, Gottfried Herold, Mark Simkin, Zhenfei Zhang

Multi-signatures allow for compressing many signatures for the same message that were generated under independent keys into one small aggregated signature.
This primitive is particularly useful for proof-of-stake blockchains, like Ethereum, where the same block is signed by many signers, who vouch for the block's validity.
Being able to compress all signatures for the same block into a short string significantly reduces the on-chain …

block blockchains eprint report ethereum generated keys mark message proof report signature signatures stake under