docs: protected String getVerifierString(byte[] verifierBytes) {
      char[] chars = new char[verifierBytes.length];
      for (int i = 0; i < verifierBytes.length; i++) {
        chars[i] = DEFAULT_CODEC[((verifierBytes[i] & 0xFF) % DEFAULT_CODEC.length)];
      }
      return new String(chars);
    }