"Oh, it's the RSA of the three of them, but I remember that after the three of them researched the RSA, they didn't rush to publish it, how did you know the results of the three of them?" The Slavic professor asked curiously.

"RSA has been discussed in the industry since '78, and the last time I went to the University of Pennsylvania, I was curious about computers, and then Professor Porter gave me something about RSA, so I guess I know!" Junxin explained, "I looked at the basic assumptions made by the three of them about RSA, and I saw some computational loopholes in this assumption, and after a period of research, I came up with some results. ”

"I see!" Professor Slav nodded and said, "But we are in the Department of Mathematics, although the principle used by RSA is the factorization of large numbers, but after all, it is a bit biased from our study of pure mathematics, so I'm afraid you will have to follow Professor Quillen's meaning in the end!" ”

Jun Xin shrugged his shoulders and said with a smile: "It doesn't matter to me here, at most, I can modify the content after the Harvard lecture and take it to Mit, after all, the content is in the Annals of Mathematics." ”

"When it comes to computers, what do you think of him?" Professor Quillen asked.

"Saves me a lot of computing time!" Junxin said without hesitation, "To be honest, this is not the first time I have come into contact with computers, when I was still in China, my alma mater, the Institute of Applied Mathematics of Mizuki University, had an electronic computer, which was at the level of a million times. When I was working and studying in the institute, I did a lot of calculations with the help of computers! In addition, I think everyone must be familiar with the proof of the four-color theorem, which also fully illustrates the influence of electronic computers on mathematics. ”

"And what do you think is the impact of mathematics on computers?" Professor Quillen continued.

"The logic, program settings, algorithms, etc. in the computer all involve mathematics, so the development of computers is inseparable from mathematics!" Junxin said briefly.

Professor Quillen nodded, thought for a while, and said, "Since there are certain flaws in RSA, then I will introduce you to Ronald Leevest, Adi Samor, and Leonard Aardman, who should be in the research institute of the School of Computer Science and Engineering now!" ”

"Oh, that's fine!" Junxin nodded and thanked Professor Quiron.

Professor Quillen waved his hand and said, "It's nothing, but it's a gesture." If you are interested in computers, or even a computer science expert who is currently doing academic visits at the university, it is not difficult for Professor Alan Pelley to introduce you to you, provided that you have enough to get his attention! ”

"If you have the chance, how about meeting each other? It just so happens that I have some doubts about the process of determining that the four-color principle was cracked by a computer, and if I could get an explanation from the greatest computer scientist in the world today, maybe it would be much easier to study some problems about computers, such as the Erdsch difference problem. ”

"It's amazing, have you studied that question?" Professor Karachi asked.

"As you know, when they agreed on the top 10 math problems, they chose my academic presentation, which stole the limelight from me. I'm not the kind of person who doesn't fight back, so naturally I'm going to do some research on these ten questions that have put me in the limelight, right? Jun Xin said with a smile, which immediately caused a burst of laughter from the professors of the mathematics department of Mit.

"Okay, well, the time for the lecture is set for six o'clock in the evening of the 23rd, and it will last for an hour and a half, after which I will introduce you to Ronald Leevest, Adi Samor, and Leonard Aardman, and of course, if Professor Alan Paley has time, I will also invite him to come along, what do you think?" Professor Quillen asked, frightened.

"Thank you, Professor, there's no problem on my side!" Junxin nodded with satisfaction. Originally, it was to meet Professor Alan Paley, but now that he has the opportunity to meet Ronald Levist, Adi Samor and Leonard Aardman, it is considered a surprise, how can Junxin disagree?

"Alright, guys, let's get down to business for now, let's arrange the afternoon activities." Professor Quillen looked at his watch and said, "It's nine thirty in the morning, and we'll start a small academic discussion at ten o'clock, tentatively for an hour and a half, and we'll continue to talk in the afternoon." Mr. Junxin is a rare person to come to our Massachusetts Institute of Technology, we must make good use of this opportunity, how about it, is there any problem? ”

Professor Karachi raised his hand and gestured, "Mr. Quillen, I have a question, what is the central point of our discussion?" ”

"In the morning we will discuss algebra, and in the afternoon we will discuss the recent topology of Mr. Junxin."

"I don't have a problem!" Professor Karachi nodded in agreement.

This is also a common way for high-level scholars in the university to visit a school, especially when they visit a school for administrative inspection in the short term. Of course, in general, which scholar will go to which school is predetermined and arranged in advance, so the school will also make arrangements according to the research field and specialty of the visiting scholar. And it is rare for a person like Junxin who has obviously had a certain reputation in the world, and rushed to other schools without any news in advance.

Of course, it seems that there are very few people like Junxin who are still in undergraduate studies and don't care about their current reputation and status in the academic world. Therefore, Jun Xin's abruptness, Professor Quillen just invited professors who had no courses and no research tasks to come over to discuss and study. Of course, if the realization is notified, it is estimated that the person who communicates with Junxin about the itinerary will probably be the alumni association of Mit or the school's senior management, such as the assistant principal. At that time, it was estimated that Mit's mathematics department had to adjust its curriculum and invite Junxin to give a large-scale academic report, instead of just spending one night giving a lecture of an innocuous nature.

Soon, more than a dozen professors hurried to Professor Quillen's office, and by the time the exchange meeting began, there were no less than 30 professors in the office, and fortunately, Professor Quillen was the only Fields Medal winner of Mit, and the office was definitely big enough, although there were more than 30 professors, the office was only slightly crowded.

The exchange meeting is a very relaxed exchange meeting, that is, put a whiteboard on the side of the stage, first of all, Junxin will show his recent research results on algebra and topology, and then the following professors will discuss the content of the display, and occasionally other professors will come to the stage to point out some problems or loopholes in Junxin's own research, and give their own abbreviated formulas.

Of course, despite the small number of people, the discussion was equally intense and open-ended, and by the afternoon, there were even professors who had started to present their latest research results on the whiteboard for everyone to discuss. Different ways of thinking and thinking collided, which made Junxin suddenly feel that he was back in the afternoon tea time of the Princeton Department of Mathematics.