public static String md5(String data) {
        return md5(data.getBytes());
    }
@Test
    public void testMd5() throws Exception {
        String biezhiMD5 = "b3b71cd2fbee70ae501d024fe12a8fba";
        Assert.assertEquals(
                biezhiMD5,
                EncryptKit.md5("biezhi")
        );
        Assert.assertEquals(
                biezhiMD5,
                EncryptKit.md5("biezhi".getBytes())
        );
        TestCase.assertTrue(
                Arrays.equals(
                        ConvertKit.hexString2Bytes(biezhiMD5),
                        EncryptKit.md5ToByte("biezhi".getBytes())
                )
        );
    }