The full-level actress dressed as a female supporting O

Chapter 106

What Xiang Wan said that day was like a switch, Fu Sheng never knew that her pain was a humiliation in the eyes of others, even though she had no intention of humiliating Xiang Wan.

Fu Sheng finally adjusted his emotions, at least on the surface.

She began to frantically ask the director to rush to work, and spent time on the set. She memorized the lines, movements and even the positions by heart, and the whole crew accompanied Fu Sheng to work overtime crazily.

She almost pulled out her whole personality, she just needs to play Zeng Manwen well, Fu Sheng's personality seemed to disappear suddenly, she completely turned herself into Zeng Manwen, Fu Sheng never had an ng, all the shots It's all a fault, her performance was perfect, but Pu Yiling's eyes on her became more and more worried.

Back on the set, the story of Zeng Manwen and Li Shuyan continued.

Zeng Manwen kept asking Li Shuyan to look for loopholes in this compilation method. Under the guidance of Zeng Manwen with ulterior motives, Li Shuyan completely restored the true appearance of the "high wall". She even made a model to simulate the real encrypted environment.

This model is exactly the same as the "high wall" except that there is no exact correspondence rule between plaintext and ciphertext.

The "high wall" is so unreasonable and open-minded, even if the principles are clearly laid out in front of you, you can't find the loopholes.

So Li Shuyan seemed to be possessed, playing with the model all day long, to the point where he forgot to sleep and eat, Zeng Manwen saw everything in his eyes.

It was another afternoon, and Zeng Manwen brought freshly baked tea to Li Shuyan's hand. Now the prices outside are getting more and more outrageous. The kidney bean crisps Zeng Manwen made for her are more than half smaller than before, and the quality of the kidney beans is not good. , There was a gap in the finished product.

"Let's take a break, I haven't eaten lunch yet, let's eat something to fill my stomach first." Zeng Manwen said.

Li Shuyan smiled at her, and asked Zeng Manwen to put the plate aside, without stopping the pen in her hand.Of course, she didn't notice that the kidney bean cake became smaller and cracked.

Zeng Manwen slowly sat down next to Li Shuyan, she was silent for a moment, and then suddenly made an attack, snatched the pen from Li Shuyan's hand, forced the fork into Li Shuyan's hand, and ordered her to eat.

Li Shuyan had never seen Zeng Manwen so stern, she tried to smile flatteringly, but Zeng Manwen was unmoved.

Li Shuyan began to eat aggrievedly, and while eating, he groaned to Zeng Manwen, saying that he also wanted to crack this damn cipher machine sooner.

"Don't worry." Zeng Manwen comforted.

The moment she said this, Zeng Manwen was startled, because she found that as Li Shuyan came up with new ideas every day, she became more and more anxious.

And the reason for her anxiety is that she has a premonition that Li Shuyan is about to crack the "high wall".

When the "high wall" is broken, she will have no reason to stay in the empire anymore. Her mission is completed. According to her past habits, she should even kill Li Shuyan and return to the alliance calmly.

But now, Zeng Manwen just wanted Li Shuyan to crack it a little slower, and a little slower.

Dirty!

Zeng Manwen scolded herself in her heart, she actually came up with such an idea, she was irresponsible to the thousands of heroic spirits who died in the alliance, she was abandoning the soldiers who were fighting in the fire on the front line, and the luxurious and comfortable life of high officials in the empire corrupted her , she almost forgot where the blood was flowing on her body.

Zeng Manwen stared at Li Shuyan, half of her body was bathed in the sun, half was cold and half was warm, almost tearing her apart completely.

But Li Shuyan was ignorant.

She finished eating the piece of kidney bean cake peacefully, and rested on Zeng Manwen's shoulder for a while. In the sweet dream, inspiration came unexpectedly. The model she made by herself seemed to be completely deconstructed, and the operation of every part was different. clear and distinct.

Then, all the steps start playing in reverse order.

Li Shuyan opened her eyes suddenly, she held Zeng Manwen's arm, her eyes were bright like a ball of fire.

"I know what's going on!" Li Shuyan said.

The "high wall" encryption method has a fatal weakness, that is, it is completely symmetrical, a plaintext is encrypted into ciphertext by a random encryption rule, and the person who receives the ciphertext only needs to adjust the three rotors of the cipher machine to match the ciphertext. In the same position as the sender, input the ciphertext, and the plaintext can be decoded.

The position of the three rotors at the beginning of the code is the key of the code!

And how to find the key?

Trying one by one is a method. As long as there is enough time and manpower, the key that can decipher the ciphertext can always be tested with the same cipher machine, but this method still has great uncertainty. The rotor of the cipher machine is detachable and can exchange positions, and the three rotors are not the upper limit of this great machine. As long as the sender makes a slight change, the deciphering party will face a geometrically increasing workload. .

The key to deciphering lies in the method of finding the key.

Zeng Manwen watched Li Shuyan go through all the conjectures and efforts of the Alliance Tobacco Institute step by step, and watched her muttering and pacing in the major general's living room.

Zeng Manwen heard Li Shuyan muttering in a low voice: "From the opposite angle, how should their sender confirm whether the receiver can use the correct key?"

She frantically searched for the old examples of the "high wall" password, pulled out one by one for comparison, and Zeng Manwen followed her to read each one, and suddenly Zeng Manwen stood up suddenly, and she grabbed Li Shuyan's hand I read the manuscript in it from beginning to end.

Repeat, she found repeat.

Among the huge amount of data, there are two passwords from different times, and the first letters are repeated.

Zeng Manwen carefully recalled the source of these two passwords. This was the routine morning report of the Imperial Air Force intercepted by the alliance. It should be to report the flight conditions of the day and convey the commander's instructions.

Because it is not important, the league did not pay too much attention.

Zeng Manwen stood where she was, with cold sweat soaking the shirt behind her. This imperial soldier who was in charge of routine briefings was really negligent of his duty. He used the same key every day!

The rotor needs to be positioned. When the rotor is adjusted to be consistent, the same plaintext must correspond to the same ciphertext.

Li Shuyan also discovered the strangeness of the two ciphertexts held by Zeng Manwen, and she figured out the key point. If she could know the meaning of the repeated letters at the beginning of the two ciphertexts, she would be able to break through them. The specific frame-shifting rules for one-to-one correspondence between plaintext and ciphertext.

"What's the meaning of the repetition before?" Li Shuyan pondered.

"Maybe...it's a title." Zeng Manwen said with difficulty.

Her throat was retracted round and round, and the dawn of victory was swaying not far away, but she was deeply trapped in a dark and cold dry well, and fear enveloped her whole body.

"The person who can receive this secret message may have a military rank, captain?" Zeng Manwen guessed with a trembling voice.

Li Shuyan recorded the captain's spelling on the calculation paper, and copied the cipher text below, and she corresponded letter by letter. Before Li Shuyan could speak, Zeng Manwen already had the answer in his heart.

They guessed right.

Li Shuyan neatly corrected his own model, and when the rotors meshed with each other, Li Shuyan even invited Zeng Manwen to help. The entire model machine was debugged in front of Zeng Manwen. The same position as the beginning of the ciphertext.

"We can now know what these damn tadpole texts are talking about!" Li Shuyan excitedly said.

She pressed the button on the input terminal and entered according to the ciphertext in her hand. Letters popped out from the output terminal one by one, and she saw that the first sentence was about to take shape.

"Good morning, Captain. Your loyal subordinate will report again..."

"Shuyan!" Zeng Manwen suddenly stopped Li Shuyan, with a strange smile on her face.

"We finally did it!" Zeng Manwen said.

"Yes." Li Shuyan nodded.

"We should open a bottle of good wine and celebrate." Zeng Manwen said.

Her eyes were fixed on Li Shuyan, which made Li Shuyan feel a little uncomfortable, but Zeng Manwen was right and should indeed celebrate.

Zeng Manwen pulled Li Shuyan up from the pile of calculation papers, turned on the old gramophone in the living room, and the melodious music poured down. Zeng Manwen clasped Li Shuyan's slender waist tightly, leading her to spin in the ambiguous music.

She pushed her down, and Li Shuyan's thin back bent back in a dangerous arc, while Zeng Manwen put one hand on Li Shuyan's back, pulling her back to the point where she was on the brink of death.

The tips of their noses were almost touching, each other's hot breath sprayed on their faces, every pore on their bodies was trembling, and the dance music from the gramophone became more and more exciting.

Zeng Manwen opened the most expensive wine in the Major General's Mansion, and the two of them lit scented candles and sat opposite each other at the long table covered with gorgeous napkins.

Zeng Manwen toasted frequently, and when the final dinner was over, Li Shuyan had already sat in Zeng Manwen's arms from the other side of the long table.

The same feeling enveloped the two of them, Li Shuyan seemed to have finally let go of the burden, she was so drunk that she circled Zeng Manwen's neck and asked for kisses.

Zeng Manwen carried her back to the bedroom, and put her on the big bed paved with layers of brocade. Li Shuyan gently pulled her, and Zeng Manwen rolled down beside her without principle.

Turn over and hug.

The night was hard.

While feeling drowsy, Zeng Manwen asked Li Shuyan, who was nestled on her neck, what plans he had for the future.

"You like mathematics, can I help you find out which universities recruit mathematics departments?" Zeng Manwen asked.

"I heard that Rice University in the northeast is very good, and their admission is only two months away. May I help you contact the professor there?"

To the northeast is the corner of the empire away from the alliance. I heard that it is still quiet there, and the flames of war have not had time to burn out.

More importantly, there was no red house, no military headquarters, and she would never see a real "high wall" cipher machine.

Li Shuyan smiled, his face full of longing.

"I want to go to the math department," she said.

"But now we are fighting." Li Shuyan said.

"I received an invitation letter from the Red House. They said that the country needs me, and if I can serve the country, the war will end soon."

"When the war is over, will you accompany me to Rice University?" Li Shuyan asked.

Zeng Manwen's blood was cold, she heard her voice change, why did the Red House invite Li Shuyan?

"Maybe I deciphered it quickly. Those in the newspaper are all pediatrics..."

Li Shuyan fell asleep, Zeng Manwen's fingertips were chilling, the empire was selecting talents across the country, and Li Shuyan showed his edge so foolishly.

Zeng Manwen stretched out her hand, her fingers were stiff from the cold, she hung her hand over Li Shuyan's neck, as long as she squeezed her five fingers together, her slender neck would be crushed in no time.

Zeng Manwen licked her lips, and she slowly lowered her hand.

Zeng Manwen made a decision that violated the alliance's secret service regulations. She packed up all the contact equipment in the study and installed Li Shuyan's model machine, and she left the empire overnight.