Ma Chunfeng sent a secret telegram to Chen Haoqiu as early as after Fang Buwei set off, warning Chen Haoqiu of the matter of keeping it secret, Chen Haoqiu didn't know the reason, but he knew the severity, and he didn't dare to talk to Fang Buwei about the old days, and arranged manpower every time to start secretly investigating the clues of Fukuda Yingfu.

The appearance has been made, and all that remains is how to contact Hu Yueming.

After Chen Haoqiu left, Fang Buwei made a special trip to the Commercial Press, and after transferring the entire bookstore, he moved a set of "Yongle Canon" and flipped it up.

Seeing that the pages of the book were turned quickly, the people in the bookstore couldn't understand what Fang Buwei was doing?

How many pages?

Just look at the number of the foot?

Fang Buwei wants to set up a set of contact secret codes on his own, and compile a set of secret codes that do not repeat the cycle at one time.

To use the simplest analogy, for example, the code name of the first word in the password is 1234, which represents the fourth word in the third line of the second page of the first book.

The next time this word is used in the intelligence, it will be searched in another line, or on another page, or even in another volume, and another code will be generated using temporary algorithms and formulas.

As long as we do not know the meaning of the first set of codes in the message, that is, the first word of the message starts from the first page and the first line, even if the enemy has the code base in his hand, he will not be able to decipher the specific content of the message.

This is the method that Fang Buwei came up with after consulting Chen Xinran and Qi Zhenjiang, and after thinking of the bank electronic password of later generations.

The biggest feature of this kind of coding is randomness.

The position of the word at the beginning is temporary, the algorithm is temporary, the formula is temporary, and even the codebook can be changed at any time......

The disadvantage is that it is cumbersome, the messages sent or received are slightly long, and a person cannot translate them instantly, and every time he translates, he must hold the codebook.

But Fang Buwei is completely free from this difficulty.

He just had the system scan.

When it was getting dark, Fang Buwei left the bookstore.

When he returned to the accommodation arranged for him by Chen Haoqiu, Fang Bu fell asleep with his head down, and it was not until one o'clock in the morning that he sat up.

The radio station, which is suspected to have sent a telegram to Lin Zhicheng yesterday, has started working.

The wavelength is 15 meters, and the frequency is 6190...... The suspected location of the station receiving the telegram was near Nanjing......

Eight achievements are Hu Yueming and Lin Zhicheng in the telegram.

Betrayed the position, Fang Buwei found that it was not very far away from him.

He wasn't surprised at all.

Nine out of ten of the radio stations of all secret organizations hidden in Shanghai were hidden in the French Concession.

Because of the public board of directors and the three major enjoyment reasons, the French Concession is the safest hidden area in the whole of Shanghai, and there is no one.

After listening to the movement outside, while the soldiers and the three guards were sleeping Zhengxiang, Fang Buwei opened the window lightly and went downstairs quietly.

When the other party arrived at Huaishui Lane, the radio station was sending a second message.

The person who sent the telegram was careful not to send each message for more than five minutes and then waited at least twenty minutes or more before sending the next one.

Fang Buwei glanced at it from a distance.

It is a small brick building, with a total of three floors, at first glance, the lights on the three floors are dark, but Fang Buwei can still make out that the lights are on in the rooms on the third floor, and the windows should be covered with quilts.

Fang Buwei leaned over unhurriedly, and when he passed under the window on the first floor, he deliberately paused for a minute, and stood there and lit a cigarette.

Seeing that there was a person standing outside the window and not leaving, the two guards guarding the room on the first floor glanced at each other, walked to the window lightly with bare feet, and looked at Fang Buwei outside.

Fang Buwei spit out a smoke ring and gently hooked the corners of his mouth.

Looks right, this is it.

He took two puffs of his cigarette and walked forward.

Two or three minutes later, Fang Buwei went around to the back of the small building again.

There is also an alley at the back, which is not wide, only more than one meter.

Fang Buwei deliberately went farther away, climbed to the top of a small building along the corner, and quietly observed.

There was no one on the roof of the nearby building, including the one where the radio station was hidden.

The telegram is gone, and it is supposed that the second telegram has been sent.

Fang Buwei moved lightly to the small building where the radio station was located.

When Fang Buwei went up to the roof of the building, there was a subtle "Didi" sound in his ears.

This is not the sound of the announcement, it should be that the radio has been turned off and the code is being collected by a device such as a radio.

Fang did not speculate that Hu Yueming should have used a high-power radio, for fear of affecting the voltage around Cai, so he did not dare to continue to send reports for a long time, and used a low-power radio when receiving reports.

The square is not in a large font shape, and it is tightly attached to the roof.

After a few minutes, the sound of the radio died down, and the sound of writing was heard again.

This is translating the code.

"Whoosh" twice, someone was shaking the paper, and Fang Buwei heard a man's voice again: "Section chief, look!" ”

Fang Buwei was happy in his heart.

Sure enough, it didn't come in vain.

The section chief in the mouth of the newspaper receiver can only be Hu Yueming.

Of the four section chiefs, the other three of the Long March, in the Soviet area, can only be called "section chief" in the Soviet area, who has just been appointed as the person in charge.

After reading the message, Hu Yueming took a pencil brush and wrote a few words, and handed it to the dispatcher: "Send it accordingly!" ”

Fang Buwei exhaled softly.

He hadn't seen Hu Yueming, he could only identify it by his voice, and the next time he heard him speak, he would know which one it was.

After another half hour or so, Hu Yueming pointed to the dispatcher hiding the radio station, and Fang Buwei heard that he was also packing his things, and it seemed that he was leaving.

It's best to walk, so you don't need to stay on the roof all night.

Fang Buwei left the roof of this building lightly and went downstairs in the distance.

He had just descended to the alley when he heard a soft noise behind him, as if a rickshaw had been pulled out of the yard.

Fang Buwei took two quick steps and greeted him head-on.

The rickshaw driver vaguely saw a figure emerging from the entrance of the alley, and was staggering towards this side.

"It's so late, where is the person?" The rickshaw driver subconsciously slowed down.

This is a double-slave car, one guard pulls the car, and the other guard sits next to Hu Yueming.

Hearing the reminder of his companion, the guard in the car secretly held the pistol.

"Don't stop!" Hu Yueming reminded.

The coachman hummed softly and greeted Fang Buwei unhurriedly.

Fang Buwei was full of wine, staggered under his feet, and carried a wine bottle that was about to bottom out in his hand.