module Eth::Eip712

def hash(data)

Returns:
  • (String) - a Keccak-256 hash of the EIP-712-encoded typed data.

Parameters:
  • data (Array) -- all the data in the typed data structure. 
def hash(data)
  data = enforce_typed_data data
  # EIP-191 prefix byte
  buffer = Signature::EIP191_PREFIX_BYTE
  # EIP-712 version byte
  buffer += Signature::EIP712_VERSION_BYTE
  # hashed domain data
  buffer += hash_data "EIP712Domain", data[:domain], data[:types]
  # hashed message data
  buffer += hash_data data[:primaryType], data[:message], data[:types]
  return Util.keccak256 buffer
end