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A threshold signature scheme enables distributed signing among n players such that any subgroup of size t + 1 can sign, whereas any group with t or fewer players cannot. While there exist previous threshold schemes for the ECDSA signature scheme, we are the first protocol that supports multiparty signatures for any t ≤ n with an efficient dealerless key generation. Our protocol is faster than previous solutions and significantly reduces the communication complexity as well. We prove our schemedoi:10.1145/3243734.3243859 dblp:conf/ccs/GennaroG18 fatcat:66n7x2tborepvg5pdi2gleep5u