Kyoto, Natsu Country Safety Division, Conference Room!

All of them had serious expressions, and there was tension in the air.

Sitting at the head of the seat is the division of the Department of Security. Zhang Sui Zuyun.

Sui Zuyun said: "Ladies and gentlemen, now the international situation is becoming more and more tense, and as one of the powerful countries, my country wants to develop, and information security is very important. ”

"Most of China's software and hardware are imported, which is very dangerous to information security."

"Network surveillance, remote control, data theft, etc., happen all the time."

"It's still a visible loss, and the invisible loss is even more."

"So, everyone, the information security situation is precarious!"

"Let's talk about how we can solve the current information security situation."

The crowd looked at each other and discussed with each other.

Sui Zuyun looked at everyone, and his heart was also anxious.

Information security has always been a headache for countries, and information security has always been a matter managed by the Security Division.

As the country with the largest number of netizens, Xia has the largest information security crisis in the world.

After a long time, Mai Yuan of the Department of Education said: "Most of the means of eavesdropping information now come from the Internet, so we should strengthen the development of cryptography." ”

"As we all know, cryptographic facilities are the immune system of cyberspace security, and cryptography is not only an immune gene, but also integrated into all aspects of the information system, constituting a cryptographic security system, and an important part of the network security guarantee system, playing a fundamental and supporting role."

"Strengthen your password modernization program and change the reactive defense strategy of endless patching and blocking."

"This can solve the information security crisis as much as possible."

When everyone heard this, they all nodded secretly.

If you want to defend against network security, it is indeed the most feasible to strengthen the development of cryptography.

Sui Zuyun said: "But cryptography does not mean that development will develop, since 1959, China has been studying cryptography for 66 years, but compared with some countries in the world, there is still a big gap. ”

Cryptography is no stranger to the Xia Kingdom, having appeared thousands of years ago.

In ancient times, it was a letter or numeric cipher, and in modern times it is a network cipher.

The word password is not a simple account and password.

Rather, they are technologies, products, and services that use a specific transformation method to encrypt and protect information and authenticate security.

In 1959, under the instruction of Qian Xuesen, Chang'an University of Electronic Science and Technology took the lead in carrying out cryptography research.

In 1988, the first master's program in cryptography was established in China.

In 1993, the first doctoral program in cryptography was established in China.

Until now, the cryptography major of Chang'an University of Electronic Science and Technology ranked first in Xia Guo.

Mai Yuandao: "Of course I know this, but now the situation is different. ”

"Mr. Sui, cryptography mainly relies on mathematics, my country is now full of talents, scientific development is catching up with science and technology, has become a big country in science and technology, and the development of mathematics is also obvious to all."

"And mathematics mainly depends on genius, and our country has a large population and many geniuses."

"For example, some time ago, there was a young mathematician at Zhonghu University who proved the ABC conjecture, and he was only 24 years old."

"This is a top talent, both at home and abroad."

"And there are many geniuses like this in our country."

"Isn't this proof that our country is full of talent."

"Therefore, there is a lot to be done to strengthen the development of cryptography."

"We should gather mathematical talents from all over the country to study cryptography, so that we can improve our country's cryptography strength in a short period of time."

"Only then can the information security crisis be solved quickly."

Geng Ye from the Science and Technology Department said: "The person you said proved the ABC conjecture, is it Ye Fei of Zhonghu University?" ”

Mai Yuan was stunned for a moment and asked, "Mr. Geng also knows about him?" ”

"Of course." Geng Ye said: "He can enter the Number Theory Association, or I recommend it!" ”

"Soon after he entered the Number Theory Association, he proved the ABC conjecture, so I still have a share of the credit for his ABC conjecture!"

"It's him." Mai Yuandao: "He is a genius, and my Education Department has been paying attention to him, but I didn't expect Mr. Geng to be paying attention to him." ”

"Alright." Sui Zuyun waved his hand and said, "Don't talk about gossip here, continue to talk about information security!" ”

"What do you think about strengthening the development of cryptography?"

Everyone discussed with each other, and then someone said: "Mr. Geng, I think Mr. Mai's proposal is very good, he is engaged in education, and he knows the country's talent development best." ”

"Therefore, he said that there is a lot to be done to strengthen the development of cryptography, then there must be a lot to be done."

"Besides, in previous years, we have always blocked information security wherever there is danger."

"It's all after the danger is there first, we find out, and then we go to block it."

"At this point, the danger has already happened."

"Although it can reduce losses, there are still losses."

"It's not advisable to make up for things like this!"

"It's time to move from reactive to proactive."

"To strengthen the development of cryptography is to take the initiative."

"Although the development of cryptography is strengthened, there is no benefit in the short term."

"But in the long run, the benefits outweigh the disadvantages."

"So, we should strengthen the development of cryptography."

Everyone nodded, agreeing with the man's statement.

Sui Zuyun said: "Do you have any other opinions?" ”

Some people propose to develop computer hardware and build the country's own brand, and all hardware should be 100% made in the country.

The idea was rejected as soon as it was proposed.

This difficulty is too high, and with the current Xia Guo Technology, it can't be done.

The main thing is high-performance graphics cards and low-nanometer chips, which Xia Guo can't manufacture.

Although Xia Guo can make medium-performance graphics cards and high-nanometer chips.

But such computers run too slowly, and people rarely buy them.

Most people who buy a computer look at the performance first, and then look at the brand.

Because of patriotism, to buy state-made computers, such people are in the minority.

And in the end, I found that the computer I bought was too slow, and I would eventually replace it with a foreign-made computer.

Others said that they would develop software and build Xia Guo's computer system.

Or vetoed.

In fact, it is very simple to make a computer system, and many people can make it.

The reason why it has not been manufactured for so long is that almost all programmers in the world create software based on Microsoft or MAc computer system environments.

The reason why there are only Microsoft and MAC computer systems in the world is that it is not the power of one or two companies, but the power of everyone in the world.

Xia Guo wants to have his own computer system, unless all programmers in the world can create software based on this system.

Otherwise, it is useless to make a computer system.

Others say building a powerful firewall, intrusion detection system, security detection system, vulnerability scanning system......

But it is still otherwise, these things are helpful for cyber security though.

However, compared to cryptography, there is a big gap.

Sui Zuyun said: "Okay, let's raise your hands to vote, and if you agree to strengthen the development of cryptography, please raise your hands." ”

In an instant, more than eighty percent of the people present raised their hands.

The main reason is that the opinions put forward by the rest of the people are not as good as the opinions on strengthening the development of cryptography.

Sui Zuyun said: "Fifty-six people, forty-five people agreed, more than half." ”

"Okay, pass, then strengthen the development of cryptography."

"Let's talk about how to develop cryptography."

After that, everyone was talking again.

The conference was held for a week, during which many well-known domestic cryptography experts were consulted.

Finally, the research direction of cryptography was determined to be 14 technical priority research areas and 13 important investment areas.

For the study of cryptography, there are three main directions.

They are cryptographic algorithm innovation, cryptographic mechanism innovation and certificate structure innovation.

A cryptographic algorithm is a set of rules or procedures for the processing of a cryptocurrency.

Cryptographic mechanism, also known as cryptographic system.

The certificate structure is the authentication that the cryptographic algorithm can run, which is equivalent to a certificate and license.

Cryptographic algorithms plus certificate structures, running on cryptographic mechanisms.

For example, the password mechanism is a small town, the password algorithm is a store, and the certificate structure is the business license to open a store.

The cryptographic algorithm plus the certificate structure is placed on the cryptographic mechanism to run the cryptographic algorithm.

Finally, when the meeting was about to be dissolved, Sui Zuyun said: "Hold a cryptography meeting." ”

"That Ye Fei from Zhonghu University, since he is a mathematical genius, then invite me."

"Other math geniuses across the country are going to invite me."

"This is a conference where we want to gather all the geniuses of mathematics and cryptography in the country, as well as experts."

"We must pool the strength of the whole country to solve the information security crisis to the greatest extent."

"Okay, Mr. Sui!" One humane, he is the one who specially presides over the invitation list.

"The most important thing is that the identities of all those who attend the meeting are carefully checked, and some people with bad ideas must not be allowed to participate."

"Yes, Mr. Sui!"

…………

Middle Lake University!

After returning to school, Ye Fei continued to devote himself to research.

Another half a month later, the time came to the beginning of November.

The study of elliptic curves is halfway complete, and there is a maximum of one month to complete the next half.

Ye Fei Office!

Everyone sat on the stool, and Ye Fei also sat on the stool, and said, "Everyone, with the study between the elliptic curve and the Diophantus diagram, we can study it from the ring k. ”

The full name of the ring k study on a Diophan diagram is called the algebraic integer ring solution on a Diophan diagram.

In general, the Diophantine problem is unsolvable, and this is the tenth of Hilbert's 23 problems.

Of course, their research only borrowed part of the knowledge from the Diophantine equation and incorporated it into elliptic curves.

Ye Feidao: "The subset K of the algebraic whole ring K of the countable field K......"

He spoke for an hour.

At this time, he saw the dean appear at the door of the office.

Ye Fei said: "Let's digest what I just said first. ”

With that, he stood up and walked out.

"Dean, why are you here?" Ye Fei said with a smile.

The dean smiled: "The number theory group has brought you a good one!" ”

Ye Fei smiled and said, "It's okay, it's okay." ”

"I know that you treat your team members very well, and you also take them out to make money, and in just over a month, you have made more than one million yuan per member of your group."

"I asked you to join the number theory group at that time, just so that you could learn management skills, so that you can enter the management of the school later."

"But I didn't expect you to find another way to take your team members to make money."

"Everyone likes money, and your team members like money too."

"They see benefits under you, and I'm sure you're sure you're in the number theory group."

"A lot of people are asking me about being on your group."

"How? Do you want to add some people in? ”

"Don't!" Ye Feilian waved his hand and said: "Dean, the number of members under my command is enough, there is no need to increase it, the number of people is just right for me now, and it will be a burden for me to increase it any more." ”

"If I take them out to do a project, the number of people under my command will be small, and each member of the team will get less money."

"Then it's time for them to have an opinion."

"And now these people, I have just enough projects to do, and everyone has a lot of money."

"Okay!" The dean said, "Then I will refuse them." ”

"Dean, that's what you're talking about when you came to me?"

"Of course not, how did you guess what you did?"

"Okay, we're at the end of the second question, and we're almost done."

"So fast?" The dean was stunned.

Then he exclaimed: "Ye Fei, your research speed, how do you feel as if the results of your research are in front of you." ”

Ye Fei smiled: "I hope too, but unfortunately not." ”

The dean shook his head and said, "I'll tell you one thing." ”

"You say!" Ye Feidao.

"How much research do you have in cryptography?"

Ye Fei said: "It's okay!" ”

The dean said solemnly: "You can't say ambiguous answers, you have to say specific numbers." ”

Ye Fei looked at the dean's serious expression and asked tentatively, "This is very important?" ”

"It's important." The dean said, "So you must answer seriously." ”

"Okay!" Ye Fei thought for a while and said: "AES encryption and decryption, CA authentication system, elliptic curve cryptography mechanism, discrete logarithm, verifiable key agreement, elliptic curve zero-knowledge authentication, PostgreSQL password authentication...... These are my researches. ”

He spoke of more than fifty cryptographic studies.

These are the contents of Ye Fei's research for so many years.

Cryptography is the study of mathematics, which uses a lot of knowledge of number theory and algebra, especially number theory, which is the most used knowledge in cryptography.

Therefore, when he studied number theory, he also studied cryptography.

"Not bad!" The dean nodded.

He pondered again and said, "Do you want to study cryptography?" ”

"Uh......" Ye Fei said in surprise: "Cryptography? ”

"Yes!"

"It's not that I can't study it, it's just that I'm studying the Gaussian conjecture, so forget about studying cryptography!"

"If I study cryptography, it will greatly delay my research on the Gaussian conjecture."

The dean looked left and right, and whispered: "Well, there is a cryptography conference, you go and attend it, as for whether to study cryptography later, let's talk about it later!" ”

"Important?" Ye Fei was a little embarrassed.

He was not very willing to participate, and the Gauss conjecture had been studied for a long time, more than a year, but it had not yet been completed.

He wanted to finish his research as soon as possible so that he could proceed with the next steps.

"You'll find out when you go."

Ye Fei took a deep breath and said, "Okay!" ”

"When to attend?"

"At the beginning of next month, the participants in the cryptography conference gathered talents from all universities and research institutes across the country, and the standard was very high."

Ye Fei said suspiciously: "Dean, what is this going to do when gathering so many talents?" ”

There must be a demon when things go wrong, and such a high-level meeting will never be a simple meeting.

"How do I know?" The dean shook his head and said, "Anyway, it must be a big deal, and it must be beneficial to participate, so I let you go." ”

The dean didn't know the specific information, he just received instructions from above, asking Ye Fei to attend the cryptography conference.

"Okay!" Ye Feidao: "Where is the address?" ”

"Kyoto, I'll send you the specific address later."

"Okay!"

After talking to the dean, Ye Fei entered the office and continued to study.

Soon after the dean left, Ye Fei received the address from the dean.

A month later!

Ye Fei wrote on the whiteboard.

[Fixed number field K, let L be the Galois closure of K/Q, for each g ∈ Gal(L/Q), so that L represents the fixed domain of g in L, then L/L ......]

[Finally, Matiyasevic's theorem is true.] 】

[Then the elliptic curve proves to be complete!] 】

Ye Fei put down the fountain pen in his hand and turned to face everyone: "Everyone, this is the whole process of proving the elliptic curve. ”

"We've reached another milestone."

"Oh......" the crowd cheered, their faces excited on their faces.

Every time they complete an academic study, they are filled with a sense of accomplishment.

Although most of the credit for this academic research belongs to Ye Fei, as his collaborators, they are also honored.

Ye Fei was also very excited in his heart, he gathered the strength of everyone, absorbed everyone's inspiration, and researched it together.

If there were no people present, he would not have researched academic questions so quickly.

Armatta and the others were also very excited in their hearts, it was right to come to Xia Kingdom, and it was very easy to study with Ye Fei.

Ye Fei said: "Everyone, this research is over, let's take a rest." ”

"Ah......" someone complained: "Team leader, why do you rest again, keep up the good work!" ”

"Team leader, are you going to take us to do some projects?"

When everyone heard this, they all looked at Ye Fei with bright eyes.

Ye Fei shook his head and said, "No, I'm going to a meeting, and I don't know when it's over." ”

"Hey......" everyone sighed regretfully.

Ye Fei said with a smile: "Don't be discouraged, if you really want to do a project, I have a lot of projects in my hands, and when the Gaussian conjecture of the virtual quadratic domain is finished, I will take you to do one." ”

Ye Fei also has a certain network now, if he wants a project, he can ask for it at any time.

There are small projects of hundreds of thousands, and large projects of millions.

So, don't say that college teachers are poor.

The poor are incompetent university teachers, and the capable university teachers are so rich that they are so rich.

"Oh......" the crowd cheered: "Long live the team leader." ”

Ye Fei smiled and said, "Okay, let's all disperse!" ”

At this time, it was three o'clock in the afternoon, and it was not yet time to get off work, Ye Fei returned to Tan Lingling and the others' office to sit down and rest, and happened to chat with Tan Lingling.

In the blink of an eye, another three days have passed, and tomorrow is the time for the cryptography conference.

(End of chapter)