I, the delivery boy, will be invincible after signing in for three years

Page 464

"Okay, I'm starting to talk about the Riemann conjecture!"

Just to liven up the atmosphere, Chen Nuo continued.

“所谓的黎曼猜想，就是黎曼函数所有非平凡零点的实部都是1/2。简单的表达式是：ζ（s）=1+1/2^s+1/3^s+1/4^s+……=0的所有非平凡解都在直线x=1/2上，这个没问题吧？”

Those who can enter the venue are all well-known professors from major universities around the world, of course there is no problem.

But for the netizens in the live broadcast room, this is the philosophical triple question: Who am I?where am I?What should I do?

The academic report will continue until nine o'clock in the evening before finishing and answering dozens of questions.

"Finally, let me answer the question that the Riemann conjecture sounded the death knell of the encryption system a few days ago."

Everyone was shocked, and finally waited for this question.

"We need to point out that this is an excessive interpretation. There has never been a cryptographic system based on the establishment or failure of the Riemann Hypothesis.

The basis of an asymmetric encryption system is the difficulty of factor decomposition. The Riemann Hypothesis only tells us the distribution of prime numbers in a certain space, not the specific prime numbers. Since we don’t know the specific prime numbers, how can we talk about cracking them? "

"It's hard to say whether we can find the specific equations and laws of prime numbers in the future, but I can guarantee that the Riemann Hypothesis will never be done, so the threat of the Riemann Hypothesis to the asymmetric encryption system is negligible."

"But it doesn't mean..."

Chen Nuo paused, and glanced at the big screen in the live broadcast room: "But it doesn't mean that asymmetric encryption is safe."

Netizens who had just breathed a sigh of relief raised their hearts again, and the screen was full of question marks.

"Please pay attention to the live broadcast room of the Academy of Sciences at [-] o'clock tomorrow morning, and I will tell you why it is not safe!"

"See you tomorrow!"

Chapter 804 Announcement of Quantum Computer

Chen Nuo left.

A gymnasium full of interested mathematicians and netizens full of bewilderment and doubts were left behind.

"I'll go, Professor Chen's learning is bad, and he lost the chain at the critical moment!"

"Haha, Professor Chen, a scumbag, just aroused our interest, and then ran away. How irresponsible!"

"Don't talk nonsense, this is related to the safety of our bank deposits, do you still have the heart to laugh?"

"What are you afraid of? My fucking house slave and car slave owe a whole lot of debt to the bank. There is no way to steal it. If the system is hacked, maybe I won't have to pay it back!"

"It's really annoying. Two days ago, because Riemann guessed that I had queued for two or three hours, I took out the money, and then Professor Chen said that I had queued for several hours and deposited it again. As a result, Professor Chen said it was not safe, should I take it now or not, just wait online!"

"What? Think about it in reverse. If it's really unsafe as Professor Chen said, then there's no need for him to say it on this occasion. Since he said it, it proves that there is a way to deal with it. Isn't that the truth?"

……

There was a lot of discussion in the live broadcast room, and at the end everyone typed on the screen in unison: "Anchor, there are so many mathematics professors present, hurry up and ask what's going on!"

Chen Nuo's live broadcast room has always been in charge of Moyin's video department. After seeing the request on the screen, several staff members discussed it and decided to ask a professor to explain it.

Since Chen Nuo mentioned it on this occasion, it means that something can be made public, and it is okay to ask someone to explain it.

"Zhang...Professor Zhang Yu, can you explain what Professor Chen just said?"

The person in charge of the live broadcast directly grabbed a math worker next to him, glanced at the work card, and asked a question.

Looking at the camera facing him, Zhang Yu did not delay: "Actually, Professor Chen's words are easy to understand. We must first know what is asymmetric encryption? What is the relationship between asymmetric encryption and the Riemann Hypothesis? Why is it so difficult to crack?"

"Let's not talk about the definition of asymmetric encryption. Let me give an example directly. A needs to pass information m to B. B generates two keys, B1 and B2, which have a logical relationship that only B knows. B1 is the public key. , B2 is the private key.

After receiving B1, A uses the B1 rule to encrypt m and then transmits it to B, and B uses B2 to decode m to complete the information transmission. "

“非对称加密就是利用大因数分解，例如质数467乘以质数661等于308687，但是很难算出308687是由哪两个质数相乘才能得到，467是B1，661是B2。”

"If it's only a factor of less than [-] million, it's easy to handle, because we have already listed them using the exhaustive method.

But what if the factor is 1024 digits? What about 2048 digits?Or go straight to 3000 digits?Can we still use brute force?

It is obviously unrealistic. We have calculated 2048-bit asymmetric encryption. It will take 80 years to crack it with the domestic Shenguang supercomputer, so it is safe. "

Although the logic here is a bit convoluted, netizens grasped words like Shenguang Supercomputing and 80 years.

But then I was full of doubts. Since the supercomputer takes so long, why did Professor Chen say it was not safe?

Fortunately, Fu Hailong asked the doubts in the hearts of the netizens.

"There is no encryption system in the world that is absolutely secure. Breaking asymmetric encryption is nothing more than a matter of computing power. If a traditional computer can't do it, then use other equipment, such as...a quantum computer!

We have made an evaluation. In theory, as long as a quantum computer with 50 qubits is manipulated, it only takes 2048 hours to crack the 8-bit asymmetric encryption, and 8 hours is time-sensitive.

I think Professor Chen's insecurity should be the use of quantum computers. I really can't think of anything else that can be cracked. "

Having said that, Zhang Yu frowned, paused for a few seconds, and looked at the camera again.

"Now that I'm here, let me talk about the principle of quantum computers cracking encryption systems. The logic gates of traditional computers are binary instruction information composed of 0 and 1, which can only be expressed as four possibilities: 00, 10, 01, and 11." One of the characteristics, if the logic circuit gates are superimposed N times, then the computing power is theoretically 2N times, which is a linear operation;

Due to the superposition of quantum computing, it can simultaneously express four information states, so the computing power of a quantum logic gate is 2 to the Nth power, which is the parallel computing of quantum computers.

It's like walking a maze. A traditional computer can only walk one way at a time. If it fails, go back and walk another way from the beginning. However, a quantum computer can walk N people at the same time, traversing all the possibilities in an instant, and finding that way the right way.

The computing power of 50 qubits is 2 to the 50th power, which is 1000 trillion times. The strongest supercomputing in China is Shenwei, except for the future supercomputing. This is the computing power, but the computing power is far beyond Shenwei. "

Most of the netizens were dumbfounded after hearing this. Many of them heard the term quantum computer for the first time. After all, quantum computers are too high-end and too far away from them.

Fu Hailong's face was full of doubts, and their magic sound can be regarded as an Internet company. He has come to this position, so he naturally knows about quantum computers.

"Professor Zhang, as far as I know, quantum computers at this stage can only solve a specific problem, and they can't run everything like traditional computers. Has our domestic quantum computer already made a breakthrough?"

"I don't know what you are asking about, but our habit is to produce the first generation, the trial production generation, the pre-research generation, and the exploration generation. Maybe the news we can hear can be announced? Well, let's stop here. Everything will be revealed at eight o'clock tomorrow!"

Zhang Yu ended the interview directly, he was afraid that he would talk too much about himself.

Most of the scholars at the scene looked thoughtful, and Zhang Yu's analysis was similar to their guess.

No... It's not a guess. According to Professor Chen's personality, it is very likely that the quantum computer will be announced tomorrow.

The press conference was over, the live broadcast room was closed, and the scholars at the scene dispersed.

However, Chen Nuo's last words and the video of interviewing Zhang Yu caused an uproar on the Internet.

People at each level have different concerns.

What ordinary people care about is whether the money in their bank accounts is safe after the emergence of quantum computers!

Businessmen, scientific research companies, etc. are concerned about whether their encrypted files will be leaked!

The computer industry is worried about whether quantum computers will be popularized on a large scale, and where should their development go!

Scientific researchers, especially scientific research projects that require super-large computing power, they are more concerned about whether it can be used by them, reduce scientific research time, and improve efficiency!

The major countries are worried about whether quantum computers can invade their networks, command systems, etc.!

As a result, various countries convened emergency meetings and began to discuss network security issues.

White House President's Office, Bison, the boss of the intelligence department, the National Academy of Sciences, the Ministry of Science and Technology and other departments gathered together.

Bai Sen asked with a cold face: "What do you all think of Chen Nuo's last words?"

Chapter 805 Play a few small games to add to the fun

"Our intelligence department detected the quantum computer research team urgently formed by the other party more than a month ago. It should have been established to deal with our quantum invasion, but we did not detect whether any quantum computer has been successfully developed!"

It was Riel who spoke, the head of the intelligence department.

"I don't think it was successful. According to the data analysis of our intrusion, the other party only modified the number of factors in the Tiandome encryption system. If they succeed in developing it, they will not modify this, but directly use quantum computers to fight us! "

"Chen Nuo just talked about why symmetric encryption is insecure, but didn't say which method. Are we being too sensitive?"

……

Hearing that a group of people didn't take it seriously, the chief think tank sighed in his heart, and said coldly: "Pay attention to Chen Nuo's words, let people pay attention to the live broadcast room of the Academy of Sciences. As far as I know, his live broadcast room has the largest number of fans in the country. Isn't the live broadcast room of the Academy of Sciences more useful than the live broadcast room of the Academy of Sciences?"

Everyone in the conference room was silent for a while, and Alan, the director of the Quantum Computer Research Office, said: "It's okay, Chen Nuo is an academician of the Academy of Sciences, an official account for this kind of thing is better!"

"That's right, so what if they have developed a quantum computer? It would be nice to have 30 qubits, it's not justified!"

"enough!"

Bison slapped the table suddenly, interrupting the quarrel: "I don't care if they have made a breakthrough, I just care about how many qubits can threaten our network security? Can we hack our satellites? If Yes, do we have a solution?"

"Before they are eight o'clock, I want to see the complete plan!"

After speaking, Baisen stood up and left with a gloomy face!

Similar meetings are taking place in various countries. Of course, most countries choose to lie flat. They don't have the ability to study, and it doesn't make much sense whether they can hold meetings or not.

When the discussion on the Internet became more and more intense, an article titled "The advent of quantum computers, the end of virtual cryptocurrency" was forwarded frantically on the Internet.

Countless people who speculated on virtual currency were woken up in the middle of the night, and then stayed up all night.

In the midst of countless discussions, the time passed until seven o'clock in the morning of the next day. Open any news webpage at random, and the homepage is full of news about encryption systems and quantum computers.

At this moment, Chen Nuo and the others have arrived at the building where the quantum computer of Micius is located.

"Mr. Zhou, were you the one who posted the article last night?"

"Correct!"

"Just send it like this, aren't you afraid that those people will go bankrupt?"

"It is forbidden to speculate in virtual currencies in China, but individuals are free to speculate. We have already reminded that no one can be blamed for being greedy!"

Zhou Zhengfeng snorted coldly, his words were full of murderous intent.

This world will never lack disobedient people and people who want to make a fortune. The more you tell him not to do it, the more desperate he will be.

While talking, the group arrived at the Mozi Quantum Laboratory.

"Professor Chen and Minister Zhou have all prepared and can start anytime!"

As soon as he entered the laboratory gate, Academician Pei Guangji greeted him.

Chen Nuo nodded, and everyone drank tea and waited slowly.

At this moment, the number of viewers in the live broadcast room of the Academy of Sciences has reached [-] million, and they are still pouring in.

Partly curious, but more curious about what Chen Nuo talked about last night?

At [-]:[-], Chen Nuo appeared in the live broadcast room on time.

"I watched Professor Zhang Yu's interview video last night. He spoke very correctly and guessed very accurately, so...our topic today is quantum computers."

After Chen Nuo finished speaking, the live broadcast room went black for more than a dozen seconds, and a gigantic monster with a strange shape appeared behind Chen Nuo.

"This is our self-developed, first commercial quantum computer, named Micius."

As soon as Chen Nuo finished saying his name, the live broadcast room exploded!

"Damn it, it's really a quantum computer!"

"Is the quantum computer so ugly? The aesthetics of scientists is not good. If Professor Chen didn't say it, I would have thought it was a piece of junk!"

"This quantum computer occupies almost... a hundred or so square meters. How much power does it consume?"

"Brothers, I'm going to buy one to play games and watch movies, what do you think?"

"Wash up and go to sleep, there is everything in the dream!"

……

Not only ordinary netizens watched the live broadcast room, but also various technical teams. At this moment, they were also dumbfounded when they saw the quantum computer of Mozi.

Except for being ugly, the Mozi is completely different from what they have seen and studied.

"The various performances of the Mozi are confidential, so I won't go into details. Now let's play a few small games to test the performance!"

Chen Nuo didn't bother to explain the questions raised in the live broadcast room, and went directly to the testing session.

"The first experiment with the well-known characteristic algorithm is to solve the mathematical algorithm Gaussian Bose sampling."

After Chen Nuo finished speaking, he pressed the start button: "To popularize science, what is Gaussian Bose sampling? Simply put, it is to calculate that n small balls randomly fall into n bags, and then solve the problem that there is only one small ball in each bag. The probability,

What we are testing today is the probability that 55 small balls fall into 55 bags on average. Currently, the fastest supercomputer in the world will take 6 million years. Let’s see how long it will take for Mozi! "

"Model imported successfully!"

"start!"

"Cracked successfully, it took 0.8 seconds, and the result is being output!"