code: private File getKeyPath(final KeyType keyType) {
          return new File(Config.getInstance().getDataDirectorty()
                  + File.separator
                  + "keys" + File.separator
                  + keyType.name().toLowerCase() + ".key");
      }
docs: Retrieves the path where the keys should be stored.
  @param keyType the type of key
  @return a File representing the path to the key