If you use collision, please contact Wang Xiaoyun of Shandong University. It is said that he is the fastest person in the world to crack this. It may take a week to use their machine. If you use brute force to crack it, please contact the National Weather Service. Bureau, because they have supercomputers. If you use a personal computer, you may have to wait a lifetime to crack it. The premise is that your computer can be used for that long.