Everyone has heard about cipher machines and key machines, but due to technical confidentiality reasons, they have no clue, so they have no way to start.
Xiaona asked: "Mr. Xu, how much do you know about cipher machines and key machines?"
Xu Dalong gave a detailed introduction.
The Enigma cipher machine, also known as the charade machine, is a cipher machine used to encrypt and decrypt files in the history of cryptography. To be precise, it is a collective name for a series of similar rotor machinery, including a series of different models. Developed in 1918 by German inventors Arthur Scherbius and Richard Little.
The Enigma cipher machine looks similar to a typewriter and can be divided into three parts: keyboard, rotor and display. It can replace manual coding encryption methods and achieve automatic coding. Most of its devices will be replaced after a period of time (usually one day). Its keyboard is connected to a current-driven rotor, which can change the number struck multiple times. The corresponding information is output in Morse code and requires a key, which is modified every day.
In 1918, Arthur Serbius applied for a patent for the Enigma cipher machine. In mid-1939, the British deciphered the principle of the cipher machine, and finally Turing, the father of computers, built a deciphering machine for Enigma...
Everyone heard Xu Dalong talking, and the situation he mastered was completely beyond their imagination. They all admired Xu Dalong and looked at him with respect.
Xiao Na, the director of the black room, asked expectantly: "Captain Xu, can you provide some more detailed information about the production of the deciphering machine?"
The British developed a code-breaking machine corresponding to the cipher machine, which has been kept highly confidential, and even the Germans do not know about it.
Hearing Xiao Na's question, everyone was still a little disapproving, thinking: "Even if Xu Dalong has heard about the decryption machine, the production of the decryption machine is highly confidential, and Xu Dalong cannot master the technology in any case. Secret."
Xu Dalong nodded and said: "I have studied the manufacturing principles of the deciphering machine. It should not be difficult to make it."
As soon as this statement came out, everyone was shocked.
Braun was very excited and stood up suddenly. He said urgently: "Mr. Xu, are you serious about this?"
Xu Dalong smiled and nodded, and said: "I will be able to draw the blueprint of the deciphering machine in a while."
Braun was an impatient man and said, "Why do you have to wait a while? Please Mr. Xu draw the drawings now."
Although Xiaona also hopes that Xu Dalong will start work immediately, the welcome party is not over yet, and the basic process must be completed anyway.
He said: "Mr. Braun, Captain Xu has just arrived. We need to give him a good reception. I have already ordered a banquet to welcome Mr. Xu and do my best to serve as a landlord."
Braun said: "The matter of deciphering the code is urgent, so we should start the work as soon as possible."
Xiaona knew Braun's temper very well. He shook his head with a wry smile, looked at Xu Dalong, and said, "Captain Xu, please don't be offended. Mr. Braun takes his work seriously. He has always been like this."
Xu Dalong smiled and said: "Mr. Braun is right, the work of deciphering the code is very urgent. The sooner it is deciphered, the earlier the important intelligence of the Japanese army can be deciphered, which can reduce the casualties of frontline officers and soldiers. I will forget about the Jie Feng Yan matter. , let’s start work immediately.”
The code-breaking machine was highly confidential, and the black room did not want more people to know about it, so they appointed Braun and deputy director Peng Fei to be in charge. Even Xiaona, the director of the black room, consciously did not participate. .
Peng Fei immediately arranged a separate room for Xu Dalong and placed four guards at the door of the room. No one is allowed to approach without the director's approval.
Xu Dalong ate in the dark room at noon and continued working in the afternoon. In the evening, he left the dark room and returned to Lin Mansion. On the way, he sent another telegram to inquire about Ding Baohang's contact with the underground party liaison group.
Soon after, Xu Dalong and Wei Dayong returned to Lin Mansion.
Xu Dalong went to greet his father-in-law and mother-in-law, while Wei Dayong stayed to prepare to receive the radio signal.
In Chongqing, both the Military Command, the Central Command and the Chongqing Garrison Headquarters have radio monitoring equipment, but these devices can only monitor radio transmissions. The receipt of reports is passive and does not send out telegrams, so it cannot be monitored. Monk Wei and Xu Dalong can keep their phones on at the Lin Mansion at any time.
It was already dinner time, and Wei Dayong was worried about missing the telegram from Ding Baohang, so he insisted on being on duty there.
After Xu Dalong finished eating, he brought a portion of the meal back. Monk Wei still had not received the telegram from Ding Baohang.
Xu Dalong asked Monk Wei to eat first, and he took over the listening work.
It was not until 8:30 in the evening that Ding Baohang's telegram was finally sent. The telegram said that he had gone to the contact point and that the place was deserted. After careful reconnaissance, he did not find anyone watching there.
The reason why Ding Baohang only responded to the telegram now was because they discovered that a radio direction finding vehicle was operating in their area. He sent the telegram only after confirming that the radio's direction-finding vehicle had left.
This time Xu Dalong was in a dilemma. His superiors provided him with this only contact point. Now the seven-member team has lost contact with their superiors. Without any clues, trying to find them is like looking for a needle in a haystack.
Under such circumstances, Ding Baohang and the others would not be of any use if they stayed in Chongqing, and would also take great risks.
So Xu Dalong sent a telegram to them, asking them to leave Chongqing immediately and return to Guanglong Gold Mine.
Xu Dalong thought about it and thought of a way. However, he couldn't guarantee that this method would be able to contact the seven-member team, but he had to give it a try.
In order to give himself time to find the seven-member team, Xu Dalong barely slept the entire night and continued to draw blueprints for the code-breaking machine.
It took him two days, with little rest in between, to draw the blueprint of the code-breaking machine and gave it to the black room for them to develop.
While waiting for the code-breaking machine to be manufactured, Xu Dalong took some time off. He was going to visit the Guanglong Gold Mine.
In order not to arouse the suspicion of the military commander, Xu Dalong called his boss and explained that he was going out to the Guanglong Gold Mine and asked him to send someone to give him a special pass.
The boss knew that Xu Dalong had a gold mine in Guanglong County and was cooperating with the Ninth War Zone, so he personally issued a special pass and Lin Zhongmin personally delivered it.
In order to buy time, Xu Dalong drove to Guanglong Gold Mine with Monk Wei after getting the special pass.
Chu Yun'er was particularly happy to see Xu Dalong. After the two were intimate for a while, Xu Dalong asked, "Yun'er, how's your contact going?"
Chu Yun'er glanced at Xu Dalong with some resentment. She finally saw Xu Dalong and hoped that he could spend more time with her. But she also knew that Xu Dalong had important things to do, so she said: "I have already contacted him. Fan Jiangjun of the 88th Army will return to Baoying County tonight, and he also agreed to invite the people you want to see." Meet you at his house."
Xu Dalong looked at his watch and said, "Yun'er, let someone arrange the food and drinks. Let's have some drinks together. I'll set off for Baoying County tonight."
Chu Yun'er said: "Don't worry, everything has been arranged. At 10 o'clock in the evening, Brother Pao will send someone to pick you up."
At 10 o'clock in the evening, Chu Yun'er personally drove Xu Dalong and Wei Dayong down the mountain.
When they reached the road leading to Baoying County, there was already a black car and a truck parked on the side of the road. The truck was loaded with heavily armed soldiers.
Seeing Xu Dalong coming, the people in the car got out of the car and came forward.
The visitor was Commander Fan's housekeeper. After the two greeted each other, Xu Dalong asked Chu Yun'er to go back, and then drove to Baoying County.
After the car arrived in Baoying County, it drove into a large house, which was the ancestral home of Commander Fan.
Commander Fan was very happy to see Xu Dalong and entertained him warmly.
After the reception banquet, he accompanied Xu Dalong to the back house and met an old man over sixty years old.
After Commander Fan introduced the two of them, he left.
The old man's name is Zhang Gu. He is of medium height and slightly thin. Although his hair has turned gray, he still maintains the unique temperament of a soldier.
He once served as the commander of the 12th Army of the Sichuan Army. He has retired and is currently the SC Provincial Senator.
He looked at Xu Dalong carefully, nodded and said: "I have heard about my nephew for a long time, and when I saw him today, he turned out to be a talented person."
Xu Dalong said respectfully: "Old General, you are ridiculously complimentary. You were the first among the Sichuan Army to go out to fight the war in Sichuan. You once fought bloody battles with the Japanese invaders in Songhu, and then fought in Wuhan. You have made great achievements and displayed the majesty of a Chinese soldier. The younger generation admires you very much."
At the beginning of the Anti-Japanese War, the old man led the Sichuan Army soldiers out of Sichuan to fight the war. Later, due to physical reasons, he had to withdraw from the military. He was very proud of his experience in the bloody battle with the Japanese invaders. When Xu Dalong said this, the old man's eyes sparkled and a trace of rosy appeared on his pale cheeks.
He smiled and shook his head, and said with some regret: "I'm old! I'm not in good health. I really envy you young people."
After the two chatted for a while, the old man said, "I heard that you wanted to see me by name. What's the matter?"
Xu Dalong said: "Do you have a daughter named Zhang Hanqiu?"
The old man was slightly startled when he heard this, and a trace of vigilance flashed in his eyes.
However, he did not deny it, because he knew that people like Xu Dalong must be prepared.
He didn't admit it and said, "Why do you ask?"
Xu Dalong didn't want to play riddles, so he said straightforwardly: "Your daughter is in danger, and I came here specifically to rescue her."
Hearing this, the old man was a little moved and asked a little urgently: "What danger?"
Xu Dalong said: "Your daughter is an underground party member, and now she has lost contact with the organization. According to my understanding, there is a problem within the underground party liaison group she belongs to, and I was assigned by my superiors to rescue her.
I can't contact her now. I came to you today because I hope you can help me get in touch with her and rescue her. "
A wise daughter is better than her father. Zhang Hanqiu is inclined to the underground party, and the old man has known for a long time. Although Zhang Hanqiu did not tell his father about his true identity out of organizational discipline, the old man was certain that his daughter had joined the underground party and had asked him to help solve many problems for the underground party.
He said: "I haven't seen her for more than half a year. I only know that she is in Chongqing. I don't know where exactly."
Hearing this, Xu Dalong frowned and said, "This is troublesome."
The old man carefully observed Xu Dalong's expression and saw that he was really worried about his daughter.
He said: "I have a niece who came back from Chongqing a few days ago and said that she had seen Han Qiu before. Maybe she knows Han Qiu's current whereabouts."
Xu Dalong said: "Old Jiang Jun, the situation is urgent. Please ask your niece as soon as possible and provide the whereabouts of Zhang Hanqiu, okay?"
Listen to what Xu Dalong said. The old man no longer hesitated, stood up and said, "Come with me."
The two of them greeted Commander Fan and headed to the ancestral home of the Zhang Gu family.
Zhang Gu's niece Zhang Liya is only 19 years old this year. She is petite and pretty. She graduated from Chongqing Women's Normal School last year. She has not yet joined the work, but last year she was promoted by Zhang Hanqiu as a probationary party member and served as a non-staff liaison officer of the liaison group, maintaining a single line of contact with Zhang Hanqiu.
Zhang Liya is no stranger to Xu Dalong. In the newspapers in the rear area, there will be news about Xu Dalong from time to time, and Xu Dalong's photos are also published in them. She knew that Xu Dalong was an excellent military commander in the underground party and had eliminated thousands of enemies. She admired and trusted such a hero very much.
When she heard that her cousin was in danger, she told Xu Dalong without hesitation that she could contact her cousin and said that she could take him to her cousin immediately.
The situation was urgent, so Xu Dalong hurriedly said goodbye to Zhang Gu and took Zhang Liya straight to Chongqing.
Zhang Liya has a cheerful and lively personality and is very curious about Xu Dalong. She asked Xu Dalong many questions along the way.
Xu Dalong was very patient and answered her questions one by one, fully satisfying her curiosity.
After arriving in Chongqing, they parked the car in a department store a few hundred meters away from where Zhang Hanqiu was hiding.
Xu Dalong told Zhang Liya to be careful, to see if there were any spies watching around her, and to evacuate immediately if she had the slightest doubt.
After Zhang Liya left, Xu Dalong and Wei Dayong also followed her quietly from two directions, preparing for rescue.
Seeing Zhang Liya walking into the alley, Xu Dalong and Monk Wei were a little nervous. The two of them have experienced hundreds of battles and have seen all kinds of storms, but this matter is beyond their control. They were really worried that something would happen to Zhang Hanqiu. If something happened to her, it would prove that something must have happened to the seven-member team.
The two of them kept staring at the entrance of the alley, hoping that Zhang Liya and Zhang Hanqiu would appear safely.
(End of chapter)
