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Key-and-Signature Compact Multi-Signatures for Blockchain: A Compiler with Realizations. (arXiv:2301.08668v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
Multi-signature is a protocol where a set of signatures jointly sign a
message so that the final signature is significantly shorter than concatenating
individual signatures together. Recently, it finds applications in blockchain,
where several users want to jointly authorize a payment through a
multi-signature. However, in this setting, there is no centralized authority
and it could suffer from a rogue key attack where the attacker can generate his
own keys arbitrarily. Further, to minimize the storage on blockchain, it is …
applications attack authority authorize blockchain compiler key message own payment protocol rogue sign signature signatures