byte[] key = fillByteArray(20, 0x0c);
    String data = "Test With Truncation";

    checkSha1("4c1a03424b55e07fe7f27be1d58bb9324a9a5a04", key, data);
  }

  public void testRfc2202_hmacSha1_case6() {
    byte[] key = fillByteArray(80, 0xaa);
    String data = "Test Using Larger Than Block-Size Key - Hash Key First";

    checkSha1("aa4ae5e15272d00e95705637ce8a3b55ed402112", key, data);
  }