assertNotNull(md5Hash);
        assertEquals(16, md4Hash.length);
        assertEquals(16, md5Hash.length);
    }

    @Test
    @DisplayName("Should handle empty input for hashing")
    void testEmptyInputHashing() {
        // Given
        byte[] emptyData = {};

        // When
        MessageDigest md4 = Crypto.getMD4();
        MessageDigest md5 = Crypto.getMD5();