adds and verifies a number sent by a player after its corresponding hash was sent concode_field_sep int ptr concode_elem_sep boolean finalised concode_elem_sep byte[] mixednumber concode_elem_sep SecureRandom sr concode_field_sep byte[] hashByteArr concode_elem_sep void finalise concode_elem_sep int getByte concode_elem_sep long nextInt concode_elem_sep byte[] hexToByte