# Functions
EmptyConfig creates an empty Config with a fixed group, ready for unmarshalling.
Keygen generates a new shared ECDSA key over the curve defined by `group`.
Refresh allows the parties to refresh all existing cryptographic keys from a previously generated Config.
Sign generates an ECDSA signature for `messageHash` among the given `signers`.
# Type aliases
Config represents the stored state of a party who participated in a successful `Keygen` protocol.