Spy Wars: The Little Spy Strikes Back

"But he is really handsome. I have never seen such a handsome man." Zhou Neng's wife replied.

"Hmm?" Zhou Neng glanced at him.

Zhou Neng's wife looked embarrassed and said: "When we concubines play mahjong together, we talk about this man the most. There are many news about his romantic affairs."

"So, you know his hobbies, right?" Zhou Neng asked.

"If money is useless, I'll just send you away." Zhou Neng said and went into the house.

"devil."

Qin Tian returned home. Being the director of the Police Department and the Defense Department was much more comfortable and less depressing than working in a lifeless place like the Special High School Section.

Next, Qin Tian’s task is to obtain corresponding intelligence from these two bureaus. All intelligence from these two bureaus will pass through Qin Tian’s hands.

Qin Tian didn't really want to clean up these people. On the contrary, the more he did so, the happier he was, because these people could be dealt with with money and power.

The most feared person is someone like Gao Bing. Money, power, and women can't defeat him. He has almost no weaknesses.

"You've been drinking. It seems that you've been under less pressure recently. I'll give you a bath." His wife Gu Shumei is a perfect wife. She waits for Qin Tian even when he comes home so late and takes good care of him.

He also helped Qin Tian take a bath.

She is virtuous, gentle and beautiful.

"This is a good thing. Let us relax for a while." Qin Tian said.

When lurking, you should be like a spring, relaxed but not too much.

"Let's relax for a while, but you can't slack off on your daily tasks." Qin Tian joked.

"I'm your wife. I've never been lax. I'm the most dedicated person and I've been carrying out my duties even during my pregnancy." Gu Shumei said in a coquettish tone.

Soon the two of them hugged each other on the boat.

"It's almost 1941, and there are still four years left. I think, after the undercover is over, we should live in seclusion in the forest and spend the rest of our lives." Qin Tian thought that being with the woman he loved was everything.

"Yeah. I'll listen to you."

"So, I want to prepare now, divide some of the money in the house and transport it to different places, buy some land or houses in various places, so that I will have more choices in the future and prevent the wealth from falling into the hands of others." Qin Tian thought.

"My plan is to buy an island in Zhoushan, or go to my hometown, Xianju Mountains, which is also a paradise." Qin Tian looks forward to that kind of life.

"Isn't this your hometown?" Gu Shumei was surprised.

"I have two hometowns, one physical and one spiritual. We must leave here in 1945." Qin Tian was very scared and terrified.

Before he traveled through time, he stood in front of the ruins of the Ice City, in front of the portrait and sculpture of the female revolutionary, on which were written the birth and death date of the female revolutionary martyr: date of death: 1948.

Qin Tian was extremely frightened, because that was the day of Gu Shumei's death.

Therefore, this is also the reason why Qin Tian decided to stay undercover until Japan surrendered in 1945. Qin Tian did not want to participate in the subsequent civil war and the war with the Military Control Commission, and he was afraid to participate, and he was even more afraid that Gu Shumei would participate.

This is also the sadness of time travelers knowing the future.

"Okay, I'll listen to you. As long as I'm with you, I can go anywhere." Gu Shumei buried her head in her husband's arms.

This kind of days continued until the twelfth month of 1940, which was January 1941 in the Gregorian calendar.

Neither the Decryption Department nor Professor Hua was able to decipher this top-secret information.

The telegram said that the patient was dying, unable to die or live.

Shancun Yefu has also lost hope for this top-secret intelligence, because as time passes, the value of the intelligence will be lost little by little, and the meaning of the intelligence itself will be lost.

Even everyone had forgotten about this matter.

Professor Hua is still in Ice City, and as long as they are under the eyes of the Japanese, they will not be too tough.

There is heavy snow in the ice city again.

Covered with heavy snow, the ice city is covered in white.

This is the third cold winter Qin Tian has traveled through, and it is colder than any previous one.

Cars cannot be driven outside the Ice City, and the patrol soldiers have disappeared. It is winter and no one wants to go out and suffer the cold.

Okamura Neiji did not choose such bad weather to carry out the large-scale mopping-up operation.

The bandit army in the northern border also entered the wintering state.

Everything seems quiet.

"This snow is too heavy, it's a bit abnormal." Qin Tian looked at the sky.

White snow fell from the sky, and dark clouds pressed down on the city, threatening to destroy it.

Looks like a strange beast.

Qin Tian stood by the window, he always felt that something was going to happen.

At this time.

An urgent phone call rang.

Qin Tian walked over, glanced at Gu Shumei, then looked at the phone, and he felt uneasy.

"Hey?"

"Mr. Qin, it's me, Hua Zhongqi." the other party said.

Qin Tian breathed a sigh of relief and said, "Hello, Professor Hua, how can I help you?"

"I want to discuss the last paper with you," Professor Hua said.

"Okay, no problem. Where should I find you?" Qin Tian asked.

"My home." said Professor Hua.

"Okay, I'll be there soon." Qin Tian said.

Qin Tian hung up the phone.

"I'm going out for a while, to see Professor Hua." Qin Tian said.

"Is it related to decryption?" Gu Shumei asked.

"It shouldn't be related. I wrote a paper for him last time and I wanted to communicate with him." Qin Tian said.

"Well, be careful on the road and come back early." Gu Shumei held the child and waved to her husband.

Any simple outing could be a farewell forever.

It was impossible to drive in this weather, so Qin Tian rode a motorcycle to Professor Huazhongqi's home.

Professor Hua sat in the living room, calm and composed.

"Hello, Professor Hua."

"You're here, sit down."

Professor Hua makes tea himself.

"Doesn't Professor Hua have a nanny?" Qin Tian asked.

"A grown man can take care of himself." Professor Hua joked.

"Yes. Professor Hua is looking for me?"

Qin Tian asked straight to the point.

"I have some idea of ​​the secret code you gave me." Professor Hua said seriously.

Qin Tian's heart was shocked; this news came too suddenly.

"You cracked it?"

"Half of it has been deciphered." Professor Hua handed the paper to Qin Tian.

Qin Tian hurriedly opened it and found it was the same piece of paper, but it was densely covered with symbols, functions, variables, calculations, corrections, etc.

There is also a circled equation.

"Is this equation the algorithm?" Qin Tian asked.

"Correct."

"What is this variable M?" Qin Tian asked.

"Intrinsic variables, also called global variables, are fixed values," Professor Hua replied.

"You mean, in addition to the ciphertext X and the algorithm logic, there is still a fixed variable missing?" Qin Tian asked.

"Correct."

"Why such a complicated design?" Qin Tian was puzzled.

"For uniqueness and idempotence, of course, at its core, intelligence encryption is all about confidentiality," Professor Hua explained.

"I see." Qin Tian paused and began to think and analyze, but he immediately felt that there was a logical loophole: "This is what the recipient agreed on, right?"

"No."

Professor Hua denied it.

"no?"

"What is agreed upon is the decryption algorithm. The decryption algorithm requires two variables, one ciphertext and two fixed variables. Such design rules can be universal. This is to solve the problem of universality. If a set of encryption algorithms is not universal, it will be meaningless." Professor Hua explained very professionally.

This principle is easy to understand.

DES, RSA, ECC, MD5, SHA-1, etc. are all universal and idempotent, and even have symmetric encryption, asymmetric encryption, etc.

"This encryption algorithm is very advanced. It can be used in all circuit communications. The person who designed this encryption algorithm is a genius." Professor Hua admired and praised.

Qin Tian also realized that this algorithm already had the foundation and shadow of the mathematical encryption model of the new era.

"But." Qin Tian didn't dare to say anything in front of Professor Hua. He just thought to himself: But, the lurker is dead, and no one knows the fixed variables anymore. This ciphertext can never be deciphered?

and many more.

A light bulb suddenly lit up Qin Tian's head, and he figured out the whole story of the encryption incident.

"So that's it, so that's it, I know how to decipher it." Qin Tian figured everything out.