"If it's still limited to three hours, no!" Facing Fujita Yoshimasa's question with hidden murderous intent, Li Ningyu replied calmly.
"Then how long do you need?" Fujita Yoshimasa asked again.
Li Ningyu still replied calmly: "I don't know."
"have no idea?"
"Yes, three elements are needed to decipher the code: code, encryption method, and sending and receiving mechanism. The most difficult part is to obtain the encryption method of the secret message. From the simplest secret code encryption to complex cipher machines, the encryption methods can be said to be diverse.
, it is naturally difficult to crack it, let alone when you only know the code."
"So, the reason why you need so many ciphertexts encrypted with the same encryption method is because you want to deduce the sending and receiving mechanism through the rules and internal connections between them, and finally crack the encryption method and then decipher the encrypted message, right?
?”
"Yes."
However, even after receiving an affirmative answer from Li Ningyu, Fujita Yoshimasa still asked uneasily: "Since you have thought of a way to crack it, why were you afraid that you could not get out of the door just now?"
"It's very simple, because it's hard not to be mistaken for an enemy spy by asking for a large amount of secret messages. If someone really insists on this matter, I'm afraid I won't be able to explain it clearly even with all my words."
"That's it!" Until then, Fujita Yoshimasa secretly breathed a sigh of relief. "Although your worries are a bit unnecessary, I have to admit that Lieutenant Li is indeed a thoughtful person. Isn't he the sending and receiving agency? I can clearly say
Let me tell you, this sealed message was sent by the military command from Chongqing to Qingdao. I think this information should be very helpful for your second stage of deciphering work."
"The second stage?" Professor Hu asked very puzzledly, "Sir Fujita, what do you mean?"
However, Fujita Yoshimasa did not mean to explain at all. Instead, he glanced at his watch and announced to everyone: "It is now half past nine in the morning. I officially announce that the first stage of this business seminar will be held by the first person to assert
The fourth team whose code cannot be cracked wins. Please take a break. In half an hour, we will officially start the second phase of deciphering work."
…
It must be said that although this business seminar was held in a hurry, the organizers were quite well prepared. Not only did they prepare a separate room for each group to take a break, but they also provided unlimited snacks and drinks.
At the same time, of course, eavesdropping devices were installed in every room.
In the listening room, Fujita Yoshimasa was listening to the goings-on in each room with earphones on, and he consciously or unconsciously asked Minami Yunko beside him: "Have you checked Li Ningyu's resume?"
"Checked it!" Nan Zao Yunzi snapped to attention and said respectfully, "In 1933, he graduated from the Department of Mathematics at the University of Göttingen, Germany. In 36 years, he joined the company founded by Zhang Xueliang with his husband.
Four Dimensional Society. Before the Xi'an Incident, her husband died of a serious illness. He then broke away from the Four Dimensional Society and went to Germany to study telecommunications. He returned to China the following year and married Pan Hanqing, a senior translator at the British Embassy in China.
Introduced by others, I joined Ziqiang College and became a telecommunications training specialist.”
"Zhang Xueliang...it's related to the Northeast again..." Fujita Yoshimasa pondered for a moment, and suddenly asked out of the blue, "According to your observation, what is the relationship between Li Ningyu and Li Qiang?"
"They are very strange. They probably just came to help on the orders of Colonel Iwai. Of course, it cannot be ruled out that they deliberately pretended not to know each other in front of others."
Just as he was speaking, Fujita Yoshimasa suddenly made a silent gesture, then concentrated his attention and listened carefully.
In the lounge.
"Quit? Why quit?"
"No reason, I don't feel well!" Although Li Ningyu said that, she typed the Morse code on the back of her other hand with her fingers: the sealed message just now actually used two cipher machines.
Double encrypted!
"Nonsense! Why are you feeling unwell? I think you're just scared!" Li Qiang followed suit and typed the Morse code in the same way as he said: Can you tell what kind of cipher machine is used?
Li Ningyu shook his head, "Yes! I'm just scared. I don't want to put my life in the hands of others!"
After hearing this, Mingtai on the side finally couldn't help but said: "Sister Yu..."
However, before he could finish his words, Li Ningyu suddenly sank her face and said angrily: "Don't call me Sister Yu! I...ahem...am I familiar with you?"
"It doesn't matter if you're not familiar with it." Mingtai wasn't angry, and still said with a smile: "As the saying goes, once you are familiar with it, you will be familiar with it the next time!"
Before he finished speaking, Li Qiang said coldly, "Get out!"
"What..." As soon as these words came out, Mingtai couldn't help being stunned, "Brother Aqiang, what did you say?"
"Did you hear me asking you to go out? You're not polite at all. What do you think my eldest sister always teaches you? Have you forgotten?"
"I……"
"Get out!" Mingtai wanted to say something else, but was blasted out by Li Qiang.
At the same time, Yunzi Minamizo in the listening room also looked at Fujita Yoshimasa very alertly, and then got up and went to personally follow Mingtai who had just left the lounge.
But at this moment, a subordinate ran over in a panic and reported: "Report to Section Chief Nanzo that a shooting occurred at the Military Police Headquarters."
As soon as these words came out, Nan Zao Yunzi couldn't help being stunned, "Didn't you already report it?"
"No, it happened just now, a call from Major Takagi himself."
"So... it's another shooting incident? How many Japanese reds have been mixed into this headquarters? What does Takagi do for a living? A bunch of trash! A loser!" After scolding him fiercely, Nanzo Yunzi said this
He calmed down a little, and then said to the subordinate, "Pass my command and order Takagi to immediately start an internal personnel inventory. Not even a mosquito can be let go, do you hear me?"
"yes!"
After sending away his men, Nanzo Yunzi calmed down his irritable mood for a while, and then opened the door and left the listening room. But after being so delayed by the shooting incident just now, where could he still see Mingtai's shadow?
Seeing this scene, Nan Zao Yunzi secretly said "No", and his whole body became nervous.
But just when she was about to summon the guards and search the entire building thoroughly, she unexpectedly saw Mingtai walking towards her with a plate of snacks.
Although he knew that Mingtai would not be able to pull off any tricks in such a short period of time, Nanzo Yunzi still called two guards and walked over with a gloomy face...
