Evil Emperor Zun

Chapter 794 Four Layers of Password
Afterwards, Ye Shuo asked the others for his numbers.

"Li Yue, what's my number?"

Li Yue blinked: "Oh, I remember it was 300!"

"Okay, thank you Li Yue!" Ye Shuo nodded gratefully, "Your number is 256."

When he asked Liang Xia again, Liang Xia replied without thinking: "300!"

In this way, Ye Shuo felt relieved, Li Yue and Liang Xia didn't have telepathy, even if they both wanted to lie to themselves, they couldn't make up the same number at the same time.It seems that my number is indeed 300!
What about 302... Ye Shuo rolled his eyes contemptuously at the thought of Huangfuli, that guy really lied to me!If you believe him, then you are really three hundred and two!

On the other side, Huangfuli also asked questions one by one, and finally asked Tantaijing.

"It's 286."

This is the fourth number he heard at the moment.

"It doesn't matter if you don't believe me." Seeing Huangfu hesitated, Tantaijing said quickly, "These numbers actually follow a certain pattern, and I can explain it to you. First..."

Huangfuli suddenly became interested, and hurriedly waved his hand: "Don't tell me yet. I am very interested in its laws, and I want to try to decipher it myself."

As far as arithmetic is concerned, although it is impossible to directly improve one's cultivation level, the process of delving into the problem-solving process can greatly enhance one's intelligence and brain.In the depths of learning, even the enemy's attack direction, the strength of moves, and even the laws of heaven and earth can be calculated through formulas.

It is precisely because of this that when the students in the academy are complaining about those algebra and analytic geometry, there are many big figures in the world who have nothing to do and will try to solve a few arithmetic problems.Immersed in it, but also a lot of fun.

Leaving the crowd, Huangfuli found an open space to sit down by himself, and listed all the four sets of numbers in his memory.

1, 256
2, 269
4, 302
5, 307
From the surface of the numbers alone, there is really no pattern.Huangfuli frowned, thinking hard.

"Well, after asking four people, I got four different numbers..."

Of these four different numbers, only one of them may be true, or all of them may be false.

But first of all, he can be sure that the "272" that Ye Shuo told him must be false, and when he designed to deceive him, he once blurted out "280". level.That is to say, anything starting with 270 must be fake.

Moreover, judging from his forced braking at that time, that number must not be exactly 280.The third place is between 1-9,

In this way, excluding Liang Xia's "275", only the 283 that Li Yue told herself, and the 286 that Tantaijing told herself remained.Of these two people, he naturally trusted Tan Taijing more.But now he is more interested in finding out the hidden laws in these numbers——

After leaving space for the third digit, he filled in the two numbers respectively, and looked at the formed five sets of numbers, and fell into deep thought again.

Among the five students in the hall, three had found their way, leaving only Li Yue and Liang Xia in the corner.

"Li Yue, do you believe the number that Ye Shuo reported?" Liang Xia propped his forehead with one hand, looking extremely distressed.It seems that the intellectual puzzles along the way have exhausted his brain power.

Li Yue hesitated and recalled: "He reported to me that your number is 277, which matches the number in my memory. Besides, the number he reported to me was 256. I'm still half-believing for now... ..."

"277, does it really match your memory?" Liang Xia immediately regained his energy and asked.After getting Li Yue's affirmative answer, he punched the ground angrily: "Damn it, what he reported to me was 269..."

"By the way, that makes sense!" After a while, the anger on Liang Xia's face gradually receded, and instead there was a wave of sincere excitement, "He knows that you can also see my numbers, so in There's no point in lying to you about this. But about your own numbers..." He paused. "It's not 256, it's 243!"

Li Yue covered her mouth in surprise: "You mean Ye Shuo lied?"

"No way! It's 'that' Ye Shuo!" Li Yue's reaction was far bigger than what Liang Xia imagined, "You don't know, Tongtong nicknamed him Ye Bailian in private, which means that he As pure as a white lotus, 'that' Ye Bailian would lie?!"

"It's not surprising." Liang Xia twitched his lips in embarrassment, "We cheated him of so many points in the previous level, and he must want to cheat some of it back!"

"You really know people, know faces, but don't know your heart!" Li Yue puffed up her face in anger, "Liang Xia, fortunately, I discussed it with you!"

Time passed quietly, and at this point, it was time for several people to enter numbers.

There are a total of five input fields on the screen, and when all the input is completed, the judgment result will appear automatically.

1. Li Yue (243)×

2. Liang Xia (277)×

"Why..." Ye Shuo looked at the two glaring "×", feeling more heartbroken than losing his points, "Didn't I already tell you the correct number?"

Li Yue and Liang Xia couldn't express their pain, they could only stare at each other fiercely, and silently lowered their heads.

3. Huangfuli (286) √
4. Ye Shuo (300)×

5. Tantai Jing (307) √
[Congratulations to No. 3 and No. 5 for answering correctly, and you will be rewarded with points! 】

"You..." Ye Shuo looked at Li Yue and Liang Xia again, with disappointment and anger in his eyes.I... have been deceived by them?
It turned out that when Ye Shuo had just walked out of the room and had a conversation with Huangfuli, Li Yue and Liang Xia on the other side had already reached a consensus. If Ye Shuo asked them, he had to tell him the same number, so that he would definitely Convinced.As for Huangfuli and Tantaijing, they had to do the opposite.

When deceiving Ye Shuo, the two showed a tacit understanding.However, they also chose to deceive each other when they conducted separate digital confirmation afterwards.

Although Li Yue is Shen Antong's best friend, but when it comes to "deception and anti-deception", after all, there is still a big difference.As for Liang Xia, she was completely deceived by Li Yue's innocent appearance.

In this way, the trio caught in the lie was wiped out.

"Speaking of Tantaijing, you don't seem to have talked to anyone before?" Liang Xia suddenly thought of someone in his annoyance, "You haven't even asked us about your own number, so how did you do it?" The input is correct? Is it really lucky to guess it?"

What he said, Ye Shuo and Li Yue also deeply agreed, and they both showed expressions of waiting for the answer.

"So I said a long time ago that there is a certain pattern among these numbers." Tan Taijing's tone was calm.He didn't show off too much, just took out a pen and paper, and signaled everyone to approach.

"Let me show you the actual demonstration. Take the numbers I got at the time as an example."

1, 256
2, 269
3, 286
4, 302
"It can be seen that the number is gradually increasing, so we first try to subtract the previous digit from the latter digit."

269-256 13 =
286-269 17 =
302-286 16 =
"Isn't this still irregular?" Ye Shuo muttered.

"What if you look at it this way?" Huangfuli on the side took the initiative to pick up a pen and drew a circle at the position including the subtraction and the difference.

"Ah..." Li Yue seemed to see something.Ever since she was in the control room and saw Tantai Jing's miraculous ability to crack the code, she has become interested in arithmetic.During this time, I have been trying to learn by myself.Although he is still half-baked, some simple addition, subtraction, multiplication and division can at least be calculated independently.

Looking at the subtrahend and the difference alone, we can find that there is a special relationship among them.

256，2+5+6=13
269，2+6+9=17
286，2+8+6=16
"The law of increasing numbers is to add a hundred, hundreds, tens and ones respectively, and add itself." Tan Taijing continued to explain to everyone, "come to this law After that, the fifth number is 302+3+2=307."

This rule, to put it bluntly, is not so strange, but this process of exploration is really ingenious.After Tantaijing's explanation was over, everyone looked at him with admiration written all over their eyes.

Then, they entered the fourth pass.

This is a slightly smaller space. There are no five independent rooms, and it is empty everywhere. Even the clues are not where they used to be.

"I said, is there really nothing here?" Li Yue complained loudly after a blanket search.

"That..." Ye Shuo didn't know if he should say this, "Actually, I found a flashlight just now. But I wanted a flashlight in broad daylight, so I never took it out..."

Huangfuli took the flashlight, fiddled with it a few times, then turned on the switch and shone it on the wall.

The radiating light is not the familiar warm yellow, but a strange light purple.

It was at this moment that a miracle happened. A few lines of text appeared on the originally empty wall under the shroud of lavender light.It seems that it has been written early in the morning, but after turning off the flashlight, the text will disappear again.Ye Shuo was compact in front of the wall, and there was no trace of it.

"Those characters are written with a special fluorescent reagent. It will only be displayed when it comes into contact with a special light. This is also a part of the mechanism." Huangfuli explained.

According to the prompt in the text, everyone pressed the wall, and the cabinet in the corner moved away automatically, revealing a hidden display screen and key surface.

Obviously, this is asking everyone to enter the password.But there is only one horizontal bar on the screen, and it is impossible to determine the number of passwords.And this time the key surface is quite complicated, not only has 10 numbers, but also a series of letters.Of course, they are not just decorations, that is to say, the final password is likely to be a mixture of numbers and letters!

In addition to the typing field, click the toggle button and you can see a few lines of prompts.

1. Four layers of encryption.

2. Key: 3
3. Password: 10011, 10110, 11010, 10101, 100, 10110, 10010, 111
This series of dense 0, 1 combinations made everyone's heads look big.

"Do you want us to add up these numbers?" Ye Shuo proposed the simplest idea, "If you add them up separately, it will be 3, 3, 3, 3, 1, 3, 2, 3, so the password is 33331323? "

"Hey, isn't it four layers of encryption? That means it needs to be deciphered four times, how can it be so simple!" After Liang Xia reprimanded Ye Shuo, her head also swelled for a while, "But the second line reminds me that I don't understand, It is said to be four-layer encryption, how come out another key is 3? Could it be telling us that the four-layer encryption is a lie, but in fact there are only three layers?"

"That, I said..." Li Yue looked at Tantai Jing for help, "This 0 and 1, I remember it seems to be..."

"Yes, it's binary." Tan Taijing seemed to have already got the answer.

"What is binary?" Ye Shuo and Liang Xia met two curious faces.

"It is a number system widely used in computing technology. It is a number represented by two numbers, 0 and 1." Tantaijing took out a pen and paper while speaking, "Its base is 2, and the carry rule is 'Every two gets one', the borrowing rule is 'borrow one as two'."

"The numbers we usually use are called 'decimal'. That is, 'full decimal one, full twenty decimal two', and so on. At the same time, you can freely convert between decimal and binary."

“二进制转十进制的计算方式，是从最低位算起，位上的数字乘以本位的权重，也就是2的第几位的位数减一次方。比如第2位就是2的（2-1次）方，就是2；第8位就是2的（8-1）次方是128。再把所有计算所得的值相加。”

While speaking, he had already quickly calculated the result on paper.

19, 22, 26, 21, 4, 22, 18, 7
"Each number does not exceed 26, corresponding to letters, and the conversion is—"

SVZUDVRG
"So?" Ye Shuo frowned.Isn't this still a garbled code?
"This is Caesar encryption." Tan Taijing was still calculating quickly on the paper without looking up, "It is a symmetric encryption system, which realizes encryption and decryption by moving letters by a certain number of digits. All letters in the plaintext are Backwards, (or forwards) in the alphabet are offset by a fixed number and replaced with ciphertext."

"For example, when the offset is 3, all letters A will be replaced by D, B will become E, and so on X will become A, Y will become B, and Z will become C. This offset , usually called a key."

"Now the key has been given in the prompt, and the value is 3, that is, all letters are offset by 3 bits, then the corresponding conversion will become like this."

He held up a piece of paper and showed it to everyone.

Clear code table: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Password table: DEFGHIJKLMNOPQRSTUVWXYZABC
"What we need to do now is to convert the password into a plain code. That is to find the corresponding letter in the password table, and then replace it with the plain code. For example, the S in the password corresponds to P in the plain code, and the V in the password corresponds to S in the plain code. After all transformations, it will become like this—”

PSWRASOD
"The answer has actually been reached here. In order to let everyone understand, I will explain it in detail. The last layer is fence encryption. The principle is to divide the plaintext to be encrypted into N groups, and then divide the first in each group. The words are connected to form an irregular sentence."

"To crack the fence encryption is to divide into two columns from the middle, which is to become like this."

PSWR
ASOD
"Then stand it up and read it. The result is PASSWORD."

"What is this?" Ye Shuo still didn't understand.

"It is one of the languages ​​of the alien plane, meaning 'password'."

After Tantaijing finished speaking, she directly pressed the 8 letters on the keyboard.

The iron gate at the end opened.A faint light slowly spilled from the other end of the door.

"I guess this level will directly kill many people..." Liang Xia whispered to Li Yue with a smile.

However, before everyone could relax, a few pairs of blood-red eyes suddenly appeared in the light.

(End of this chapter)