module Bip44 module Ethereum def ethereum_address # from bitcoin public key to ethereum public key group = ECDSA::Group::Secp256k1 public_key = ECDSA::Format::PointOctetString.decode(@wallet_node.public_key.to_bytes, group) # a point ethereum_public = Utils.padding64(public_key.x.to_s(16)) + Utils.padding64(public_key.y.to_s(16)) # from ethereum public key to ethereum address bytes = Bip44::Utils.hex_to_bin(ethereum_public) address_bytes = Digest::SHA3.new(256).digest(bytes)[-20..-1] address = Bip44::Utils.bin_to_hex(address_bytes) Bip44::Utils.prefix_hex(address) end end end