The full-level actress dressed as a female supporting O

In the next scene, Pu Yiling finally had a chance to play.

Alliance, Institute of Tobacco Coffee and Health.

Cheng Yiyun, played by Pu Yiling, received a message from the hinterland of the empire. The intelligence agent code-named Gentleman sent a brief report.

[Guess is correct. 】

Cheng Yiyun stood up from the chair abruptly, she walked around the office, drank the coffee in the cup in one go, her fingers trembling slightly holding the dense electricity.

She has been waiting for the gentleman's information, not only for the mission, but also to confirm that the gentleman is still alive.

That was a place beyond the reach of the alliance, sharing the same room with the devil in the red house, Cheng Yiyun never doubted the ability of her old partner, but still couldn't help but worry about her.

Gentleman is Zeng Manwen's code name.

The news she sent back said that the guess was correct, which means that the gentleman saw the true face of the "high wall".

A long time ago, Cheng Yiyun guessed that the encryption method of "High Wall" is a complete innovation. It is elegant and simple, can be rolled out on a large scale, and is as cheap and easy to obtain as machinery.

In other words, the "high wall" is originally a kind of machinery.

This is almost a fantasy in this era. When the mechanical theory was first proposed, there were many different opinions within the Tobacco Institute. No one believed that passwords could exist without mathematics.

Until the Tobacco Institute intercepted the sample, Cheng Yiyun worked day and night for several years, and she could almost guess the working principle of the encryption mechanism[1].

Cheng Yiyun guessed that there is a unique rotor structure inside the "High Wall" cipher machine. When a letter on the input end is pressed, the output end will give the corresponding letter, and the rotor will automatically rotate the position of a letter.

And "high wall" is not a simple replacement cipher. When the same letter is in different positions in the plaintext, it can be replaced by different letters, and the same letter in different positions in the ciphertext can represent different letters in the plaintext. Every turn changes the rules of correspondence between plaintext and ciphertext, and letter frequency analysis is useless here.

Cheng Yiyun conservatively estimated that there are at least three rounds of such rotor encryption in the "high wall".

And the gentleman can give her the conclusion of "the guess is correct", which means that she has at least seen the entity of the "high wall" cipher machine with her own eyes.

This is exciting news, which shows that Cheng Yiyun's work for many years is not wrong, and their work in the entire tobacco factory is not wrong. It is a pity that the secret message cannot convey more detailed information, otherwise the gentleman may be able to complete the internal structure of the "high wall". Send it over.

She believes that gentlemen have this ability.

Originally specializing in the hypothesis of cipher machines, only the first office directly under the leadership of Cheng Yiyun. After this confidential message, half of the research institutes of the Tobacco Institute stopped their work and devoted themselves to this confrontation between manpower and machinery.

If the "high wall" is really as Cheng Yiyun guessed, then it has a fatal weakness: the rotor will make a full turn and return to the original direction, and the coding rules will repeat at the beginning.Although the designer of the "High Wall" installed three mutually restrictive rotors on the "High Wall" in order to avoid this, resulting in a reduction of the repetition rate to one third of the cube of 26, but if it is weak, it must be possible. breakthrough.

Half of the elite of the Tobacco Institute, half of all the geniuses in the entire league, Cheng Yiyun has so many people under her command, she firmly believes that she can win this struggle between manpower and machinery.

However, this is by no means the optimal solution.

Therefore, the focus of Cheng Yiyun's work is still to find the beautiful and reproducible optimal solution.

Soon, the Tobacco House received another message from the gentleman.

[I found a treasure, maybe I can mine it to try it out. 】

[I need more bricks. 】

Bricks is what their colleagues in the Tobacco Institute said. Since the entire coding rule is named "High Wall", then the secret codes born under this rule should be called "Bricks". They intercepted enough "Bricks". blocks", almost as many as there are, but the "high wall" is still unattainable.

Gentleman, what does that mean?

Cheng Yiyun knows better than anyone else that a gentleman's talent lies in memory, even if she only glances at it once, given enough time, she can recall all the details of the whole scene one by one, but her math level is not high, She definitely does not have the ability to challenge the "high wall".

What exactly is her treasure?

The gentleman is far away in the enemy camp, communication cannot be guaranteed, Cheng Yiyun slapped the gun on the table, drowning out other doubting voices.

Sending the intercepted imperial secret telegram to the outside, to the empire, this is simply a fantasy!

But Cheng Yiyun was sitting in this seat, and she kept her word in the tobacco shop, unless she was cleared out first, the people under them could only execute the documents signed by Cheng Yiyun.

The camera cuts back to the empire, and the major general's mansion returned to calm. On a night when no one was paying attention, Zeng Manwen squatted in front of the fireplace to smoke bacon for Li Shuyan. She split an old fragrant wooden chair in the attic for firewood. This extravagance and wasteful behavior aroused no one's suspicion at all.

As the major general's wife, it just costs money.

The tongue of fire is licking the chair, the armrests and backrest have been eroded by the years, and the wood has become loose. If someone rescues it from the fire at this time and takes a closer look, you should be able to vaguely see the marks scratched by someone's nails on it.

The splicing of each other turned out to be the layout of the conference room on the day Zeng Manwen broke into the red house. During the three days when Zeng Manwen was locked up in the attic for interrogation, he engraved the images in her mind on the chair she was sitting on. The mental torture is useless to her, and she even has the rationality to sort out the information she has obtained under the forced sleep deprivation!

The picture of the conference room is divided into several parts and carved in hidden places on the chairs.

There is an iron box with buttons and indicator lights on the long table. There are even holes for cooling on the iron sheet covering the internal movement.

There were many documents scattered and piled up on the desktop, which were the focus of the discussion in that meeting, but unfortunately they were all encrypted by the "high wall".

One of them was appearing on Li Shuyan's bedside.

Zeng Manwen was unbelievably bold. She knew that Li Shuyan's biological mother was a famous mathematician and even a cryptographer, and Li Shuyan's greatest hobby was to study the notebooks left by her mother. Zeng Manwen used simple passwords to test Li Shuyan, she can see through it at a glance.

She is a password genius, a genius that the empire has not yet discovered!

Major General Li was still thinking about whether to let Li Shuyan go to medical university or study drama, while Zeng Manwen from Lianzi League wanted to trick Li Shuyan into working for the League.

She mixed a piece of information encrypted by the "high wall" with a stack of codes she gave Li Shuyan, and she took a big risk.

If Li Shuyan is not as innocent as she appears, if she knows what a "high wall" is, she will be able to recognize at a glance that the information comes from the Red House, then Zeng Manwen will be completely exposed, even with her taking advantage of Li The whole matter of the major general drugging Li Shuyan during a meeting just to break into the red house will be exposed without a doubt.

But Zeng Manwen was able to become the No. [-] agent of the Tobacco Institute because of her belief like a gambler.In her long career, Zeng Manwen was infinitely close to death countless times, but every time she gambled, she won.

Obviously, she won the bet again this time.

Even, Goddess of Destiny especially favored Zeng Manwen, not only did Li Shuyan not recognize the "high wall" at all, she even developed a strong interest in this code.

Zeng Manwen intends to provide Li Shuyan with more samples for her to study. As for the reason, just make up one. Li Shuyan is simply the most deceitful person Zeng Manwen has ever met.

Thinking of this, Zeng Manwen's lips curled into a smile, she was really cruel to this girl who was only 19 years old this year.

But there is no way, who made them natural enemies?If she was merciful to Li Shuyan, who would show mercy to the civilians of the alliance who died in the imperial bombing?In the face of the war, she did not regret the death of Zeng Manwen, so Li Shuyan did not regret the death either.

All for the Union, long live the noble liberty!

After the fragrant wood chairs were burned, Zeng Manwen stood up in satisfaction, took the best venison from the stove, sliced ​​it into a lunch box, and the juice was just right.

She turned around, and the hourly worker just came in from the outside, and she couldn't help feeling a little shy when she saw that the hostess was cooking again.

Major General Li paid her a generous salary, but most of the time she only needed to clean the room, and Zeng Manwen seldom used others during the young lady's meals, so she could only help Zeng Manwen.

The part-time worker handed Zeng Manwen the newspaper taken out of the mailbox at the door, and Zeng Manwen put it on the sideboard. She packed the lunch box for Li Shuyan, put on the gray woolen coat that was wind and cold resistant, and conveniently put the newspaper in the box. In the crook of your arms, push open the door and walk into a snowstorm.

It turned out that it had already snowed.

Sitting in Major General Li's car, she went to the hospital as before. Zeng Manwen casually unfolded the roll of newspaper on her knees, and put a piece of densely miniatured paper into her handbag without anyone noticing it.

There was a gap in the car window, and a snowflake came in. Zeng Manwen stretched out his hand to catch it. Each piece of the crystal clear hexagonal crystal was exquisite and unique. It quietly melted on Zeng Manwen's suede gloves, leaving only a pool of water stains in place.

Cut!

As soon as the slate was hit, Fu Sheng got out of the car, before the snowflakes from the props group had time to stop, Fu Sheng's eyelashes were covered with snowflakes in a blink of an eye.

Her eyelashes trembled, the snow turned into rain, and it looked like she was pitying.

From this scene, Zeng Manwen began to use Li Shuyan, but at this time Li Shuyan didn't know anything about it.

Pu Yiling, who had just completed the friendship with Fu Sheng in the script, was filled with emotion. She turned her head and wanted to seek some approval from Fu Sheng, but Fu Sheng didn't take it seriously.

"If we talk about using her, it started from the first shot. Zeng Manwen started to think about how to use her the first time he saw Li Shuyan." Fu Sheng said while taking off his gloves.

"Is that so?" Pu Yiling was puzzled, she asked herself that she had read the script very carefully, but she didn't understand the design of the plot at the beginning.

"The description of Zeng Manwen in the script is that even a woman's beauty is shocking. Just looking at her can make an innocent girl pregnant. Do you think anyone can see this pregnancy eye?" Xiang Wan asked.

Sure enough, she came to help Fu Sheng change his clothes again. Snow fell on Fu Sheng's body when he got into the car. Now that the snow had turned into water, Xiang Wan was afraid that Fu Sheng would be frozen.

Naturally, Xiang Wan also joined Fu Sheng and Pu Yiling's chat.

"If Zeng Manwen's pregnant eyes attacked indiscriminately, wouldn't the whole world be her harem?" Xiang Wan glanced at Fu Sheng and made a joke.

"She deliberately seduced Li Shuyan from the very first sight," Xiang Wan said.

Fu Sheng also nodded. Both she and Xiang Wan had thoroughly studied each other's roles.Fu Sheng said: "Li Shuyan is not an impolite girl, she uttered wild words to Zeng Manwen the first time they met, and she clearly messed up her heartstrings."

Fu Sheng and Xiang Wan looked at each other and smiled, as if there was some sweet tacit understanding flowing in the air.

Pu Yiling finally understood, how could things between a dog and a girl be called use or seduction?People call it two-way rushing!

The author has something to say: [1] The prototype is the Enigma cipher machine used by Nazi Germany during World War II. For the introduction of the principle, refer to Baidu Encyclopedia.