The closing ceremony of the International Congress of Mathematicians

When they heard Lin Xiao complaining about how it was so easy to achieve surprising results, everyone present couldn't help laughing.

Indeed, Tao Zhexuan's joke can only be heard as a joke.

It would be outrageous if this kind of result could be achieved so easily.

Especially Lin Xiao is obviously still researching battery technology recently.

These mathematicians also know more or less about the recent battery issues, so they also know about the dispute between Lin Xiao and the Panasonic Group over the battery.

Of course, the main reason why these mathematicians want to understand this kind of thing is Lin Xiao. They are obviously a top mathematician, but he is also a top physicist, chemist, and materials scientist.

I am very interested in the matter, so it is normal to pay attention to it.

And battery research is so troublesome, how can Lin Xiao achieve anything good in mathematics while studying this thing?

Impossible, absolutely impossible!

"Huh? It seems like there won't be any more?"

At this moment, Lin Xiao's voice suddenly sounded again.

The venue, which was originally filled with a cheerful atmosphere, suddenly came to an abrupt halt because of Lin Xiao's words.

What does Lin Xiao's sentence... mean?

Tao Zhexuan, who was standing on the stage, suddenly stopped laughing, and he couldn't help but feel a sense of disbelief in his heart.

"Uh...Lin, please say it again, what are you talking about?"

Everyone present held their breath again, waiting for Lin Xiao's answer.

At this time, Lin Xiao repeated it again: "Well, let me say, if you want to talk about surprising achievements, I seem to have one here?"

Hearing these words from Lin Xiao's mouth, everyone present suddenly showed shocked expressions.

Good guy, Lin Xiao really made another important achievement when he was researching battery technology?

"Uh..." Tao Zhexuan shook his head helplessly, and then said: "Well, I originally thought that this was just an opportunity for us to say hello to you collectively, and then by the way, you uh... could also participate in this year's competition in this way.

During the conference, but now it seems that we are about to get another surprise."

But then he smiled and said: "Of course, as a person who studies mathematics, I don't want to hear about a result that can surprise me without wondering what the result is. I believe everyone present

Everyone, that’s what you think too, right?”

As he spoke, he also turned to look at the mathematicians present.

The mathematicians in the audience nodded one after another, and a mathematician sitting in the first row also stood up and shouted: "Lin, please stop showing off. Tell me, what do you have?"

What did you do?"

This mathematician is none other than Pierre Deligne.

For mathematicians like them, they can be envious and jealous of Lin Xiao's many achievements, but when faced with Lin Xiao's achievements, they can't wait to see what Lin Xiao has done again.

What is.

After all, although in the past, when Lin Xiao produced results, mathematicians who studied the same subject would complain for a while, because once Lin Xiao produced results, it often meant that their efforts were in vain, but the same thing happened when Lin Xiao really

After achieving results, they can also bring more value to their mathematical community, so they still hope that Lin Xiao can really bring some important results.

When Lin Xiao on the other side of the screen saw Deligne standing up, he also smiled and said hello: "Oh, Professor Deligne, nice to see you."

"Well, actually it may not be a mathematical theory, or some important equation, method, etc., as everyone thinks."

"Tao, please, please show this function to everyone."

As he said that, Lin Xiao picked up a piece of scratch paper in his hand, and what was written on it was the one-way function he accidentally discovered just now.

Tao Zhexuan nodded, and then presented the function displayed by Lin Xiao on the big screen behind him.

In this way, everyone in the room can see this function.

Of course, many people are also confused. Is there anything wrong with this function? That is, the f(x) part is a bit too complicated, and they can also see some traces of physics in it. If anyone present has

If you have studied quantum mechanics, you can easily see that this function is related to quantum mechanics.

However, the question now is, what does this function represent?

While most mathematicians were frowning and still thinking, some top mathematicians had already figured out something.

For example, Terence Tao standing on the stage.

As the first person in the audience to see the function given by Lin Xiao, he naturally started thinking about it from the first sight.

At the same time, as Tao, who knows a little bit about everything, he happened to have done some research on quantum mechanics and the P=NP problem, so his face finally became unsettled.

"Wait a minute, is this function... incorrect? It needs to be verified again."

He muttered to himself, and then looked at the function again, wanting to verify it again.

At this moment, Lin Xiao spoke: "As you can see, this function is the surprising result I want to say."

"Because if I'm not mistaken, it should have successfully solved a millennium problem."

"That is, the P=NP problem."

Hearing Lin Xiao's words, everyone present looked shocked again.

Many mathematicians immediately sat up straight.

Lin Xiao actually solved the P=NP problem?

It goes without saying that the difficulty of the P=NP problem is difficult, because compared with other problems, it is somewhat unclear which direction to start from when trying to prove it. The starting point is not too clear, and

It's different for other problems. Although the difficulty of solving them is not low, the starting point is relatively clear.

Therefore, when they heard that Lin Xiao had solved this problem, they were all surprised.

Of course, many of them subconsciously thought that the solution Lin Xiao mentioned was a proof. After all, it was also out of habit.

And this also made many people present feel a sense of absurdity. Can the P=NP problem really be proved?

For many people who study cryptography, this is like a bolt from the blue. After all, cryptography is based on the premise that P is not equal to NP. Their previous hard research, and cryptography

Could it be that all the foundation stones laid over the past hundred years have been in vain?

And the most important thing is that the collapse of cryptography will eventually evolve into the collapse of modern information technology.

After all, when all passwords can be easily cracked, how many people will dare to keep their privacy on the Internet?

Of course, forget about these privacy issues. It’s the same as it is now. Once cryptography collapses, the most dangerous thing will be the world’s financial industry. After all, cryptography can no longer guarantee the security of property at this time. By then, there will be a run on the world.

All banks will face the risk of bankruptcy.

The reserve ratio of banks around the world is generally maintained at single-digit percentage points. In other words, once depositors accounting for 10% of their deposits want to withdraw their money, the bank will be unable to withdraw the money.

You can only file for bankruptcy.

Once the bank goes bankrupt, capital operation will become empty talk, and companies will not be able to pay wages, because the company's money is also deposited in the bank. By then, it is not impossible for the world to directly fall into a nuclear war.

Thinking of this, many cryptography experts who were well aware of its harm suddenly felt a panic in their hearts, and even began to blame Lin Xiao in their hearts. Why should this thing be displayed in front of such a large public?

Even if he is the only one who knows, it will not cause such consequences.

However, just when a lot of cryptography experts were worried that the world would be destroyed because of this, suddenly, Tao Zhexuan's words brought them back to reality from the disaster movie.

"You mean, you have falsified the P=NP problem? And this function is a one-way function?"

Tao Zhexuan's words finally made everyone present wake up.

Yes!

It just seems to be a more complicated function. How can it prove the P=NP problem?

Therefore, the only way out is falsification.

Thinking of this, the cryptographers who were still worried were relieved, and then looked at the function given by Lin Xiao again.

This function is actually a one-way function?

Because it involves some things in quantum mechanics, it is still somewhat incomprehensible to most cryptography mathematicians. After all, not everyone is as good at everything as Terence Tao.

However, for these cryptographers, this is a one-way function after all. As an open problem in cryptography or information science, there are still many people interested in this thing, so

They also tried their best to understand this one-way function, see if they could recreate some one-way functions based on this one-way function, and finally create a new password based on it.

Because obviously, using a one-way function as a password is much more secure than using other ordinary functions as a password. After all, this is a password that cannot be cracked even by P=NP.

Of course, Lin Xiao definitely doesn't know what these cryptography experts think now, and if he really proves P=NP, he will definitely not make it public, because he naturally knows that once cryptography collapses,

What impact will it have on the world?

After hearing what Terence Tao said, he smiled and said, "Yes, this is a one-way function."

"As you can see, now we input a function value into it, for example, let

After substituting it in to find the value of x, we were surprised to find that the finally calculated value was not 1! It was some other value!"

"At this time, we will substitute the other calculated values ​​into the value of x, and the finally calculated y will be another value!"

"And this is obviously a one-way function."
To be continued...