Secret War Silent

"Xiaoyao, when you read this letter, the teacher has already left. The situation in Hanoi is complicated. As the person in charge of the operation, the teacher left his post without permission, which is already a violation of the military rule..."

In the letter, Yu Jie explained to Luo Yao some things that he couldn't say again, or that he couldn't say in front of Su Li and Gong Hui.

In addition, he also made arrangements for Luo Yao's next itinerary.

The Burma Railway is narrow gauge, which is different from domestic railways, and there are only two trains per week. Therefore, if they want to go back by train, the fastest train will be two days later.

He didn't need to worry about the ticket issue. He had already asked Tan Si to prepare it. In addition, he also prepared some Annan's special products for him to take back.

Mainly for his family, and a few colleagues he met in the mountain city.

Then there are some instructions to him. When he arrives in Shancheng, unlike Jiangcheng, the power struggle within the military command is also very fierce. It is common for various factions to compete for power, let alone external opponents like Zhongtong. Be careful, don't stand in line, only stand on Dai Yunong's side.

Now it seems that Dai Yunong will definitely be the most powerful within the military system in the future, and other factions such as Baoding and Shonan can only rely on the Jiangshan faction headed by Dai Yunong.

Of course, Luo Yao knew about the future development of the military command. Dai Yunong's thigh should be hugged tightly. As for what he will do when he arrives in the mountain city, he still has no idea at all.

"Brother Tan, I will trouble you for the past two days!"

"Luo Zu is polite. I have known your teacher for a long time. You are his student, so we are a family." Tan Si chuckled.

"So it's Uncle Tan, Meng Lang was here earlier."

"I'm still called Fourth Brother. I don't want to be called old by you. Let's go our separate ways." Tan Si grinned, his white teeth looked very happy, "Are you still used to sleeping yesterday?"

"It's okay, but the humidity here is a bit high, and I can't breathe well through this nose." Luo Yao nodded, his ability to adapt is pretty good.

"It's okay, when I first came here, I was similar to you, and now I'm used to it." Tan Si said with a smile, "If you are interested, you can go shopping in Haiphong City these two days. Haiphong City is not big, so there are still some Less exotic."

"Thank you Brother Tan, I will definitely go out for a walk when I have time." Luo Yao responded with a smile.

"What do you want to eat? Tell Xiao Li that he is an orphan I adopted. Now he is helping me with things. He can speak Chinese." Tan Si ordered.

"Ok."

……

"How are you?" Putting away Yu Jie's letter, Luo Yao knocked on the door and went into the next room. Gong Hui was next door to him. The sound insulation effect of this hotel was much worse than that of the Peninsula Hotel in Hong Kong.

If he is willing, he will know exactly what Gong Hui does at night.

Fortunately, it was the left arm that was injured. If it was the right arm, it would be a little troublesome. After all, the left hand is not as flexible as the right hand, and it still needs help to put on clothes.

Careful Tan Si found a little girl to help, who also worked in his hotel. She was young, with dark skin, and she didn't speak much. She was submissive and a little shy.

However, she has a good relationship with Xiao Li, an orphan adopted by Tan Si, and the two seem to have some unusual interactions, which is not what he cares about.

With the little girl's help and care, Luo Yao's embarrassment would be saved.

"We have to rest here for two days before we have a train back to the country. At that time, we will take this train back. You can also rest in Haiphong for two days."

"Yes." It is a good thing for Gong Hui to be able to take a breath without having to rush on the road.

"In a while, I'll find Fourth Brother Tan and help you find a doctor for you to look at." Luo Yao said, he is not a professional doctor after all.

"No need, I didn't hurt my bones. As long as the wound doesn't become inflamed, you can change my medicine in a while." Gong Hui said, "I don't think the little girl can do this either."

Luo Yao nodded.

"Okay, you can take a good rest in your room, eat and drink, I'll have someone bring it to you."

……

"What, Mr. Yardley, are you still used to it?" Luo Yao finally saw Yardley, this old American man really has a big heart.

In such a strange place, he secretly ran out to drink and gamble with people.

If he hadn't looked down on the women in those low-level romantic places, he would have stayed there overnight. He was a guest, and Tan Si couldn't do this to him.

"Mr. Yardley, although we are safe now, you should also understand that this is not the United States, nor China. If something happens to you, there is nothing we can do." For this old American man, Luo Yao didn't want to just Get used to him like this.

Some people in China have a kind of "fear of kneeling" towards foreigners, but he doesn't have it. You should scold him or you have to scold him. You can't spoil this kind of person. The more you spoil him, the more he will feel that you are afraid of him and accommodate him. The more recklessly he behaved.

"Oh, Luo, I'm so happy to see you again!" Yardley was still a little ashamed, and he also knew that his behavior had caused trouble to others.

"How much did you drink?"

"Ah, not much, just two bottles, three bottles..." Yardley smiled coyly, stretched out two fingers, and added another one, like a child who has done something wrong.

"If you drink like this, I don't guarantee that you will see Miss Edna Ramsey again." Luo Yao said coldly.

"why?"

"Don't you know that you have heart disease?" Luo Yao asked, "Also, your liver is not good either. Alcohol is absorbed and decomposed through the liver. If you suffer from alcoholism again, the medical conditions here may not be good. There is a way to bring you back from the death line."

"Oh, Lo, I know, but I'd have no fun in life without booze, don't you think?" said Yardley.

"Drink in moderation. If you want to continue to enjoy life, you have to do three things after arriving in China!" Luo Yao said.

"Which Sanjiang?"

"Losing weight, quit drinking, quit sex!"

"Oh, No!"

Yardley heard it and cried out loudly.

"Mr. Yardley, you used to be an intelligence officer. You know how many high-ranking government officials and generals ended up falling for the beauty. If you can do this, we can find a way to help you get Edna La Miss Mussell arranged to come to China to take care of your life?" For an American like Yardley, Luo Yao is very clear about his character, he advocates freedom and is not used to being restrained, especially when it comes to private rights.

But since he came to China to work, he had to abide by certain rules, especially the brutal underground intelligence warfare, which he had probably never experienced before.

Many of Yardley's bad habits will be exploited and even broken by the enemy.

Good wine, lustful, and also likes to gamble, the most important thing is that he has a bad temper, and even a little lack of education, if he is not an American, and he is also a code-breaking expert, he can only "live" for three days in the military system.

"Ro, are you serious?"

"Of course, I might as well tell you that after returning to China, I will cooperate with your work in China, so, do I need to explain to you?" Luo Yao felt that before returning to China, it was necessary to explain the domestic rules to Yardley Even if he is an international friend who came to support China's war of resistance and enjoys certain privileges, it should not be too much. Things involving intelligence and his own safety cannot be done, and he must be given a preventive injection in advance.

"Okay, Luo, tell me, I'll listen." Luo Yao was the first military commander Yardley came into contact with, and he felt that besides the restraint and humility of the Eastern people, he also had a kind of American His courage and responsibility, and bringing him out of Hong Kong safely, also made him have a good impression of Luo Yao.

Although Luo Yao sometimes spoke a little rudely, in Yardley's eyes, he didn't feel offended, on the contrary he felt it was a kind of frankness.

He didn't like the kind of people who played tricks and plotted secretly.

As a matter of fact, Luo Yao did this on purpose in front of Yardley. He knows Yardley too well. You can’t use the same tricks as you do to Chinese people when dealing with Americans. Only in this way can they gain their trust. If you are clouded and misty, you can only express your feelings but not express them in words, then you have set up communication barriers yourself.

"China is different from your United States. China's culture is restrained and reserved, while your United States rushes towards freedom and is passionate. Therefore, cultural differences often bring certain obstacles to communication. Sometimes everyone says the same sentence. It means the same thing, Mr. Yardley, do you understand?"

Yardley shook his head, obviously not quite understanding.

"For example, Mr. Yardley, if I ask, have you eaten yet? How would you answer?" Luo Yao asked.

"I'll answer, I've eaten," said Yardley after a moment's thought, and he had.

"If you answered that you have eaten, you mean that you have eaten. In China, if the answer is the same, it is very likely that he has not eaten. This is just a polite remark, and the purpose may be to prevent the other party from inviting He eats, or he doesn't want to eat with the other party. At this time, the questioner will say again that he can eat a little more after eating, and if the other party agrees, he will go to eat with him. If you refuse, then there is no need to ask again."

"So complicated?" Yardley's face was full of question marks.

"Also, if the other party says they've eaten, but you don't continue to invite, then he won't say anything on the surface, but he may be upset in his heart, because he thinks that you may not have invited him sincerely, understand?"

"what……"

"Mr. Yardley, this is just a small aspect of life. When you arrive in China, you will understand that the Chinese are very hospitable, but sometimes there are many misunderstandings caused by different cultures, and even conflicts that do not exist at all. There are some seemingly restrictive and unreasonable rules of our military command, which you need to know, because you will live in China for at least a year, and we also hope that you can live happily and healthy in China, right? ?” Luo Yao asked.

"Luo, can I ask you to be my Chinese teacher, I want to learn Chinese from you?" Yardley suddenly asked seriously.

"Of course, deciphering is a word game. If you don't understand the other party's writing, how can you talk about deciphering?" Luo Yao agreed with a smile.

"Luo, do you also have research on code breaking?"

"Mr. Yardley, I studied mathematics at college."

"Oh, really?" Yardley was very surprised. He didn't expect Luo Yao to be a college student with a high degree of education. He thought that people like Luo Yao were uneducated and uneducated.

He forgot that Luo Yao could speak fluent English and communicate with him without barriers, how could this be possible for a rough man?

Chapter 0191 Deciphering the Code

"Luo, let's go and drink with me?"

"Mr. Yardley, I don't have time to drink with you. I have a lot of documents here that need to be read and sorted out." Luo Yao worked hard.

Since Dai Yunong entrusted him with the establishment of a code-deciphering center, he must do it seriously. Moreover, code-breaking is very important in intelligence work.

If you can grasp the enemy's communication secrets, then all the enemy's deployments are under your nose, which is much safer than sending intelligence agents to sneak into the enemy's interior to obtain information.

Of course, this is not to say that there is no need to send latent agents to the enemy to provide information, but this is also necessary. Information cannot be isolated evidence, and must be verified by each other.

After all, secret communication can also be forged, and the enemy can also use this to conduct tactical and even strategic fraud.

"Luo, you actually understand this?" Yardley looked down and was startled. Luo Yao was actually sorting out the information he brought about code-breaking.

He found all these things from the bottom of the box at home. In the United States, these materials are considered confidential, but the Americans seem to ignore them. He can only bring them to China to see if they can be found to play a role. Opportunity.

Some materials are very scattered. He is a very casual person in his life. Although he collected them, he did not organize them accordingly. Even his novels were dictated by himself, and others helped him edit them.

Without the royalties from the publication of his novels, he would have lived a very poor life in the United States these years, very miserable.

Otherwise, he wouldn't be attracted by the high reward.

To say how many noble sentiments there are, in fact, it is all nonsense, he came here for money, without money, how can he live a life of luxury and wealth?

Without wine, without women, what fun is there in life.

"Some are fine, some are not." Luo Yao nodded.

"Oh, is it?" Yardley didn't really believe it. His things are usually left unnoticed at home, and they are a bit moldy when thrown under the bed. When he came to China this time, he almost forgot that he still had these things in his hands.

Many of them are basic. Of course, he considered that the Chinese side may need these, so he brought them here.

Because he needs to use these to train some personnel in this field, and he should start from the most basic things. Code deciphering cannot be done by one person. It also requires a lot of people to divide and cooperate and do a lot of work. Otherwise, one person simply cannot complete such a large workload.

This is a race against time. When you succeed in deciphering, the battle may be over. What's the point?

Without enough people, certainly not.

What Yardley has to do in China is to help China cultivate a group of code-breaking talents. Of course, China does not have such talents, but it is not organized, or there is no professional training. It's the model where the master guides the disciples.

Moreover, code-breaking is a special industry, not anyone can enter it, and it requires strict assessment and political review.

In fact, domestic talents of this kind are very scarce, and although the national government has made some progress in deciphering the Japanese secret code, the progress is very slow due to technical and talent constraints, and the Japanese side must walk ahead of them in this regard. ahead.

Intelligence shows that the Japanese side has achieved great results in deciphering the Chinese secret codes, and has even basically grasped the laws of some of the Chinese secret codes.

And in these battles, China suffers a lot. Before the fight starts, the enemy will know about its deployment. How can we fight this battle?

There are also some front-line generals who don't have a strong sense of secrecy. When fighting, they actually use clear codes. Isn't this just telling the enemy how they fight?

How can this battle be undefeated?

"Ro, can I ask you a few questions?" Yardley became interested in the matter.

"of course."

"There was an encrypted communication method in ancient Rome, the 'Spartan stick'. Do you know what it is, and can you explain its encryption principle?"

"Mr. Yardley, you are wrong. The 'Spartan stick' is an encrypted communication method used by the ancient Greek army. It is used by wrapping a long strip of parchment around a wooden stick and writing on it. , After taking off the parchment, there is a string of chaotic characters on it, and the content on the paper can only be read by wrapping it around a stick of the same thickness in the same way again." Luo Yao smiled slightly.

Yardley nodded. In fact, he deliberately described ancient Greece as ancient Rome, just to test whether Luo Yao could hear it.

I didn't expect the other party to be so careful, and I heard it all at once.

"Actually, this 'Spartan stick' uses the typical 'transposition method' to encrypt the communication content. As long as you know the method, it is very easy to decipher." Luo Yao continued.

Yardley nodded. As long as he has learned the common sense of code breaking, it is not difficult to know this knowledge point. However, considering that Luo Yao is a Chinese, it is still very powerful to know the encrypted communication methods of the ancient Greeks. , even in the intelligence community, knowing two or three out of ten is not bad.

"Okay, next question, more than 2000 years ago, a consul in ancient Rome invented a text communication encryption method, we call it Caesar encryption method, Luo, do you know how this Caesar encryption method is encrypted?" Deli asked again.

"Hehe, the Caesar encryption method is actually the embryonic form of our cipher encryption today. He uses the 'single-letter replacement' encryption, the principle is very simple, and it is easy to crack..." Luo Yao talked eloquently.

Yardley was very surprised. Although these are just two simple questions, not many people know them, and those who study secret telegraphic communication may not know them.

Because knowing this is the basis of password deciphering, you don't understand the principle and how to crack the password.

In essence, the current encryption methods for cipher communication come from "alphabet replacement", but the replacement rules are changed.

Once you master the rules, you crack the code.

It's easy to say, but hard to do.

"Luo, if I write a paragraph and you encrypt it with the single-letter substitution method, can you decipher it?" Yardley became more and more interested in Luo Yao.

"I can give it a try." Luo Yao nodded, he could write a cipherbook by himself, and crack a small single-letter substitution encryption, that's not a child's play.

The so-called single-letter encryption is not without rules. If a single-letter encryption table is created just to replace a sentence, it can actually be deciphered, but it will take a little longer.