"This guest, are you looking at Morse code?"

The groom whipped the horse's buttocks, turned his head, and saw Wang Feng sitting reading a note, looked at it casually, and asked.

"You know Morse code?"

"Hehe, I understand a little, I used to like all kinds of passwords, well... I'll see, well... And the Zhu Gao password, the Hill password? It's amazing, what kind of secret is this? If it's a state secret, I don't dare to read more. ”

"You know this? It's not a secret, and I don't know what it's for. ”

Wang Feng said truthfully, I really don't know what these codes are used for, maybe it's just some information from Ye Sen, or maybe the vortex analysis is wrong? The latter is unlikely, as the ability is also an analysis error.

"You don't know what to do? Let me see...... Well...... I couldn't understand it, so I converted it with the Morse code in my impression...... What is simply incomprehensible! ”

The groom took the note, looked at it for a long time, and shook his head helplessly.

"Okay brother, the next section is the mountain road, the mountain road is rugged and steep, I can't be distracted."

"Well, you should drive seriously."

Wang Feng took the note and fell into it again, and sure enough, he couldn't analyze anything: "2 凵 L コ He-Nizzi A: 35.1.5.· -·-·· --·-----·---··· ----··· -··· --·--·--··· ------···· --··· ---·· --·-”

Morse code, a magical code, was invented in Germany in 1848 by Friedrich Clemens Gerke, A is: ·-; B is:-···; C is:-·-·; D is:-··; and so on......

In addition to the 26 letters of ABCDE, Morse code can also express ten numbers from 0 to 9:

1 is ----; 2 is·· ---

"It's here! Brothers! ”

Mafu reined in the black horse, turned his head, and announced.

"Okay, thank you."

Wang Feng paid, the price was a little expensive, I didn't expect to come back for half a year, China's economy has undergone great changes, the original carriage only cost five cents, now it needs one yuan, and the money is gradually depreciating.

I heard that in two years, a hundred yuan banknotes will be issued, that is, the fourth set of yuan, blue-black, with statues of Mao, Zhou, Liu, and Zhufu painted on it, after all, I have only heard about it now.

I heard that some places have now issued 100 yuan bills, the pattern of the sailboat on the front, and the flower charm on the back, those who can afford it are considered rich families.

"Could you please help me see what the code means?"

The groom had just received the money, and it was not easy to postpone it, so he had to get out of the car to help Wang Feng take a look, put the paper on the rock, and asked, "This paper...... It's not the original paper. ”

"It's not the original, I wrote it down from memory."

"Well, that's good, that rules out the possibility of invisible words. I don't have much business today, so I'll help you take a look. ”

"Okay, thanks."

Wang Feng hopes that he can crack all the codes, even if the content of the explanation is: Ye Sen likes to smoke orange-flavored cigarettes with betel nuts. I also admit it, if I haven't decrypted it, I always think about it in my heart, and it's strange that it's uncomfortable.

“emmm…… I used to be a crypto fan, and I loved to crack all passwords, but the Morse code begins with a paragraph...... I've been reading it for a long time, and the translation should be P0J3... Whatever, Zhu Gao's password is translated as 2IAK, and Hill's password is CEOS?? There really aren't any signs! There is no meaning in it!! Morse code translated from ...... Only understood one! ”

PS: Hill cipher, using the principle of basic matrix theory to replace the cipher A=0, B=1, C=2...A string of letters as an n-dimensional vector, multiply it with an n×n matrix, and then the result MOD26 will be obtained, note that the matrix used as encryption must be reversible at \mathbb_^n, otherwise it is impossible to decode. Only the determinant of the matrix and the 26 coprime are reversible.

"That one?!"

Wang Feng asked, his voice slightly eager.

The groom smiled bitterly: "Yes, I'm more confused, the beginning of the Morse code is the code of AR:·—···, the beginning is equal to the end?" What's the operation? So I'm sorry, I can't untie this code for you today, let's go first, goodbye brother! It's almost dinner time, and there must be business again in Simianshan! I'm going to pull people! ”

"Goodbye."

Wang Feng walked straight to the mountainside, which was his hometown, the place where Wang Feng would dream of it.

Still thinking about the code on the way: "The beginning is the end? What kind of broken code, can't be translated, it's really Ye Sen who likes to smoke and betel nut, right? …”

“……”

"Wang ...... Wang Feng?! ”

"Well, Qin Han, you're beautiful again."

The tears in Qin Han's eyes were accumulating more and more, and he was about to cry when he saw it, so he threw himself directly at Wang Feng, hugged him tightly, and cried out: "Wang Feng...... I thought you would never come back, my aunt and I are so worried about you! … You are a dead Wang Feng, stinky Wang Feng! Don't you want me anymore..."

Wang Feng hugged her with his backhand, his eyes were complicated, he was really sorry for Qin Han and his mother, because he said goodbye. When he was in prison, Wang Feng was held as a death row prisoner, so he did not agree to meet his family at that time.

"I'm sorry Qin Han, I'm really... I don't have the face to see you..."

Wang Feng said the truth. A girl, if there is a better choice, who would be with a man who has no job, no capital, and has been in prison?

"Abominable Wang Feng, stinky Wang Feng! You didn't have the face to see us, did I have the face to see you at that time? I'm just a thief! And you were a lieutenant in the army at the time, and there were many girls chasing you, but you still chose me! ”

Qin Han's crying and shouting made Wang Feng stunned, and he was stupidly stunned, motionless.

Qin Han got down from Wang Feng and looked at his face: "Do you know, I thought I wasn't worthy of you, I wasn't qualified to be your friend, let alone your daughter-in-......law, you disappeared for so long, and when you came back suddenly, you said that you didn't have the face to see me... What do you make me think? ”

"Qin Han... I'm sorry. Wang Feng hugged her again, hugged her tightly, and didn't let go for a long time, closing his eyes tightly.

"Xiaohan? What are you doing so loudly? ”

Kang Feng walked out with a spatula and smiled, and when he saw the familiar figure that he was thinking about all the time, he was stunned at first, and then said in a lost voice: "Feng...... Feng'er ...... Really, really you? …”

"Mom... I am back. Wang Feng squeezed his smile and said, but he couldn't laugh.

"Feng'er!"

Kang Feng rushed towards Wang Feng, the spatula was thrown on the ground, because he was excited, he hugged Wang Feng tightly and couldn't stop his tears.