Chapter 073 The strictest protection

Yan Fuyou showed a knowing smile on his face and said, "In theory, we know the content of the telegram, and we found the same content characters in the three telegrams, and had basic passwords. How could we not be able to decipher the Japanese password? The four of us racked our brains! In the end, we used an uncertain equation to decipher the password! Sure enough, we deciphered it!"

Yu Zecheng also learned uncertain equations, but he is not a major in mathematics and has only a slight understanding of the connotation of this equation. He said: "Can you give a few examples to illustrate?"

Yan Fuyou nodded and said, "For example, we have to take people to Chongqing recently by boat. Our medium-sized boat can take thirty-seven people. The small boat can take 20 people. This time we have 371 people to go to Chongqing. How many ships do we have to send to transport 371 people away? Because the ship is tight, there are no empty seats on the ship? This is the infinitive equation."

Yan Fuyou then picked up the pen and wrote on a piece of paper:

37x20y=271

Yan Fuyou continued to introduce: "There is a limit for infinitive equations, that is, the number must be an integer. In this way, we can solve the problem that x=3; y=8; the Japanese use this algebra to compile the password."

Yu Zecheng thought that this question was just like when he was a child. He also understood that when he issued the code, he outputted "3" and used "8" instead. However, he had a question: "If three and eight are so fixed, isn't it equivalent to our first encryption?"

Yan Fuyou nodded and said, "Team Leader Yu is indeed amazing! Although you are not from the mathematics department, you are more powerful and more sensitive than many people in the mathematics department!"

Yu Zecheng was still a little complacent when he listened to others' flattery. He resisted the urge to laugh and continued to listen to Yan Fuyou's explanation silently.

Yan Fuyou said: "If the boat can carry four people, the boat can carry three people, there will be a total of forty-eight people? Or ninety-six people?"

Yu Zezhen understood it! There are multiple answers to this kind of answer! You can randomly choose an answer for encryption! Therefore, the encoding in each message is different. Of course, this is not absolute. But it is relatively speaking. After exceeding this kind of answer, it will be repeated. For such encryption, the translator of the secret telegram does not need a secret key and translates it directly by himself. If you don’t know this encryption solution, you will be exhausted and you will not be able to calculate it! So that’s it!

[This encryption method does exist in the cryptographic system. In history, Song Zhaoyi, a genius deciphering expert in the Eighth Route Army, was stuck in the process of deciphering in 1944, and then a thought came up. Can you calculate its rules with an equation in mathematics? He asked a mathematician who graduated from Xiamen University. After explaining the purpose of the visit, the mathematician told him that there is an "indefinite equation" in the great algebra, which can be solved. With the approval of the leader, the mathematician taught him how to solve indefinite equations. Although Song Zhaoyi has a junior high school culture, he has improved in practice and has only taken half a day to basically master it. He used this method and combined with specific information, and finally successfully deciphered.

I'll borrow it here.]

Yu Zecheng re-copied the dozens of characters that had been deciphered, and then called Lu Zongfang.

When Lu Zongfang heard that he had made "a major progress (an urgent request for an interview)", he hurried to Yu Zecheng.

Yu Zecheng handed over the deciphered password to the old spy.

Lu Zongfang was overjoyed when he saw it! He said, "Zecheng, you have made great contributions this time! You should quickly figure out what conditions you want. When the boss opens his mouth, you can raise it. At this time, even if you want the moon in the sky, the boss will find a way to pick it up for you!"

Yu Zecheng thought about it and said, "I have no other request. I just want to decipher the Japanese password next. I need a Japanese password book, but I can't let the Japanese discover it. Therefore, I decided to take someone to steal one. In this way, I need people!"

Lu Zongfang immediately understood, and he said, "You want to get Wu Kuiyuan back!"

Yu Zecheng nodded.

Lu Zongfang shook his head! He said: "If you want to get Wu Kuiyuan back, you can succeed by asking your boss to decipher the Japanese army's password! You don't need this great contribution to be at the bottom!"

Yu Zecheng thought about it and said, "I really have no other requirements!" He suddenly remembered Huang Jiaqin and asked, "Can I mention Huang Jiaqin's affairs?"

Lu Zongfang shook his head and said, "No! From now on, according to organizational discipline, you and Huang Jiaqin must be cut off with one knife! Otherwise, once something happens to her, you will be implicated. You are the most important nail in the organization! You must nail it here tightly! Anyone or thing that threatens you must be eliminated one by one!"

Yu Zecheng was a little anxious! He asked, "How do you tell Huang Jiaqin? Who will her superior in the future?"

"You must make it clear to her that when the country wins, it is the time for you to get together! As for her superiors, you are still you! At critical moments, the organization will make other arrangements."

'There are eleven years left, but even if the whole country is liberated, my two wives are not easy to solve, and can we solve Huang Jiaqin's affairs?' Yu Zecheng thinks this is the old spy's trick! However, he dare not say it clearly, otherwise, the old spy asked him how he knew what happened after the whole country is liberated, and he could not answer. He said: "Okay! I've been to her recently!"

Afterwards, Lu Zongfang brought Yu Zecheng to Wu Jingzhong.

When Wu Jingzhong heard this, he was overjoyed! Last time Yu Zecheng deciphered the code about Ji Guozhen, but it took him a long time to find out that he was intercepted by Zhao Lijun, so he almost opened Yu Zecheng! However, later he learned that Yu Zecheng had no right to decide at all. The right to decide was on Lu Zongfang. Of course, he would not go against Lu Zongfang. Everyone was an old man from the second department! Therefore, he made a certain investment in Lu Zongfang.

After Wu Jingzhong learned about the entire deciphering process, he took Yu Zecheng to the boss's office!

Half an hour later, Lu Zongfang saw Yu Zecheng coming out, but Wu Jingzhong didn't come out.

Yu Zecheng came to the old spy and took the old spy to the edge of the big yard. He said, "Wu Kuiyuan's matter has been resolved! I didn't say anything else! The boss may have a heavy reward! In addition, the boss may give me some privileges to recruit a few students. Do you think there are suitable candidates there?"

Lu Zongfang shook his head without hesitation, and he said, "You can't get involved in everything over there, nor can you get involved in your group!"

Yu Zecheng immediately understood that it was all about protecting himself! He suddenly asked: "Have you considered my joining the organization?"

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Chapter completed!