byte[] data = fillByteArray(50, 0xcd);

    checkMd5("697eaf0aca3a3aea3a75164746ffaa79", key, data);
  }

  public void testRfc2202_hmacMd5_case5() {
    byte[] key = fillByteArray(16, 0x0c);
    String data = "Test With Truncation";

    checkMd5("56461ef2342edc00f9bab995690efd4c", key, data);
  }

  public void testRfc2202_hmacMd5_case6() {