Ten-Dimensional Covenant [Unlimited]

"Jiewu." Zhou Xiaolin's voice awakened Yuzhou from his contemplation, "I finished reading it, no, is it really a machine-like password?"

Yuzhou was very disturbed, so he casually flipped through the chapter about machine codes. This part needs to be combined with i's self-created "returner" code machine, and this machine did not appear in the gallery.

"It's a pity that in just 16 pages, I can't grab the crib in the way of 'Kiss' or 'Planting Flowers'." Zhou Xiaolin scratched his messy hair into a bird's nest.

"Hey." Yuzhou also sighed.

But Jie Shu on the side pricked up his ears, "kiss", "plant flowers"?Deciphering the code actually requires kissing! ?Also grow strawberries! ?

What a system!

He looked at the liar's bright red lips. The plump shape and moist lip lines really seemed to have been ravaged by someone.

Jie Shu's murderous intent suddenly arose, and just about to attack, he saw the liar frowned, biting his white teeth mercilessly on his lips.

If you bite yourself, it's fine.No, no, nothing in the past doesn't mean nothing will happen in the future.Jie Shu praised his plan for a rainy day. He walked up to Yuzhou and said with a stupid face, "Actually, I also learned from the cipher branch of Calius Academy. I can help you together."

"What, you also learned from Beida Jade Bird?"

Seeing that both Bonan and Zhou Xiaolin looked like they had seen a ghost, I couldn't help but feel a little annoyed, "Oh, come here, whether it's kissing or planting flowers, I can do it."

Hearing this sentence, Yuzhou couldn't help laughing, "Okay, you'd better find your characters."

"I'm really a student of Calius College." Ji Shu was in a hurry, trying to explain, "The professor of the Cryptography Department of Calius College is called Si, Si..."

"Spenley," Bonan reminded in a low voice.

"That's right, that Subaru is my teacher." Jie Shu was ready, and put the knife on Subaru's neck when he returned home, letting the old thing accept him as his apprentice.

"In this case..." Yuzhou looked sly, since you are going to jump into the fire pit, then I can't help it, and pushed the book notes in front of him, "Then you should look for the fixed sentence patterns inside."

Jie Shu straightened his back, pretending to be serious, "I'm here to solve problems, like kissing or planting flowers, not to do hard work."

"This is kiss." Yu Zhou smiled while propping his head on one hand.

"That's... is it?" Jie Shu's face froze, and he was silent for about a snap of his fingers. He stood up quickly, cupped his hands, and said righteously, "The character team still needs me, so leave."

"Don't, don't run away. You are also needed here. A talented student at Calius Academy!"

Seeing someone running away as if fleeing, laughter gradually rose, and the depression circulating in the crowd was dispelled a lot.

Time passed by, and soon it was 17 o'clock in the evening, which is 0.6 o'clock local time. Fen Shuangyan came back again, dragging her extremely tired mental strength, and came to Dahuangluo's side.

Before I could speak, I heard the indifferent woman say:

"Don't waste your time."

The crimson flames flickered in her deep and dark eyes, but there was no warmth at all.

Fen Shuangyan opened the jug and took a sip. She couldn't deceive herself, maybe there was really nothing she was looking for here. She was depressed for a moment, and finally found a trace of fighting spirit under her slightly drunkenness: "Wait for the little fish!" Come back with He Chou and discuss what to do next."

On the side of the sloping dining table, rubbed waste paper has rolled down all over the floor. Zhou Xiaolin leaned his elbows on the table, lowered his head, and scratched his hair frantically, "It's too difficult, it's not a professional job." Cryptographers, is it possible to decipher the machine code? 2/3 painters really use this method?"

Yuzhou closed his eyes half-closed and leaned back on the seat silently.

Even the most energetic Bonan sighed.

At this moment when all the staff were decadent, the sound of heavy footsteps "tapping" came from the stairs.

It does not belong to Xiao Hechou, nor does it belong to Jieshu.

Just as Yuzhou stood up vigilantly, Fan Yinyin ran out excitedly, "Brother!"

The person who came was Fan Yuanshan, holding his younger sister who was covering her face and crying, and said with a smile: "Hey, Yinyin, I just ran for 3 hours and came here from the library without even drinking my saliva, so why don't you drink it?" Let me do weight training?"

Fan Yinyin jumped out of his embrace with a blushing face, and wiped away her tears, "Brother, you're kidding me again."

"3 hours? Impossible." Yuzhou said suddenly, a bit unsightly. At that time, he was rescued by Jieshu, and he walked for nearly 5 hours even dragging and pulling. How could it be possible for Fan Yuanshan to complete the journey in 3 hours, unless he Was killed once in the middle.

"Don't you know? The floating black line in the central area has disappeared." Fan Yuanshan said.

"Not bad." Fen Shuangyan also nodded.

The sudden black mist and the sudden disappearance made Yu Zhou frown slightly, not knowing what the monster was doing.

"Brother, have you solved your black thread? How have you been these few days? Has anyone bullied you?" Fan Yinyin asked like a cannonball.

"My sister finally knows how to love my brother?" Fan Yuanshan pinched her smile and said, "The black line has been resolved. You see, I am fine now."

Fan Yuanshan pulled up his sleeves, there was a hideous scar on the injured part, but the wriggling black lines had indeed disappeared.

If Yuzhou realized something, he asked, "What is the secret left by your friend?"

"I do not know about this."

"I don't know?" Everyone had doubts in their eyes. If you don't know, then how did you pass the test?

Fan Yuanshan sat down and drank the whole bottle of mineral water pushed by Yuzhou in one gulp, "After a series of searching and deciphering, I found that the clues of my friend can be stitched into three sentences."

He omitted the process and said the result directly, "In the first sentence, the answer is hidden in "New Interpretation of i's Password", in the second sentence, the answer is hidden in "The Texture of Nature", in the third sentence, the answer is hidden in my last Sending you a gift.

After receiving these three words of inspiration, I hurried to find those two books, but to my surprise, "New Solution to i's Password" had already been sold out. At this moment, I remembered what Brother Xiao said to me when he was parting. He said, if players Master the key information to unlock the secret, but when the key item is in someone else's hands, you can ask npc to help you get it back. "

When Zhou Xiaolin heard this, he lowered his head in shame.Bonan carefully glanced at Yuzhou, and found that his expression was not friendly, and he gritted his teeth secretly in his heart, intending to bite this jerk into three pieces.

Yu Zhou's expression was indeed bad, but it was not the two people around him who were angry, but Xiao Hechou, this damned guy, no wonder he lingered by the door for so long that day, so it turned out that he had exposed his old background.

Fan Yuanshan was in a good mood, and didn't pay attention to the changes in other people's expressions, and continued: "I told the administrator i these three sentences, hoping that he can find a way to get the player who owns it to give up the book.

"Unexpectedly, the administrator didn't do anything, just gave me the antidote, told me that the task was over, and then waved me away impatiently.

"I walked under the scorching sun with the antidote bottle, and I didn't come back to my senses for several minutes. It was too dreamy, and it passed like this!"

Yuzhou had an epiphany, and said to himself: "No wonder no one has solved the riddle for so long. The npc doesn't want to know, and who can imagine the answer out of thin air."

After all, the last gift is probably on me, and he is unwilling to take it out. Naturally, no one will be able to find the last secret.

"I see!" Zhou Xiaolin slapped the table and stood up excitedly, "That gift should be the stargazing notes transcribed by 2/3. In the new solution, there is a key encryption method called 'folding method' It requires a copy of the original text of the password, folds the original text three times according to the Hermes conversion, rearranges it into a new order, and then determines a certain page, a certain line, and the number of words according to the password.

"And the example given by the author under this method is nothing but a passage in "The Texture of Nature". The reason why we can't solve it is that the original text of the code is missing."

"You silly bastard." As soon as Zhou Xiaolin finished speaking, Bonan jumped up and punched him on the knee, "What are you pretending to be, do you know that only the boss can act aggressively. At this time , you only need to pretend to be a salted fish that can call 666, empty your brain, wait for the adults to solve the puzzle, and then wave the flag and shout to express your admiration."

"666, as expected of a big boss, let me wait for the younger one to learn more." Yu Zhou clapped his palms slowly, and said coolly.

"Ah, my lord. Well, I didn't mean that." Bonan said with a flattering smile, "You are so good, you must have seen the truth long ago."

"Hehe, not at all."

"My lord, you are too modest." Bonan forced a smile.

"No, I'm just stupid."

Bonan's whole face collapsed, and he threw himself at Yuzhou's thigh with eyes full of watery eyes, and licked hard: "My lord, my lord~"

Fen Shuangyan, who was watching the farce beside him, laughed unsteadily.Even Fan Yinyin couldn't help snickering.

Yuzhou kicked Bonan into the air. 1/3 of his hands did not involve the "folding method", so naturally he didn't think of the answer so quickly.

He took Zhou Xiaolin's 1/3 of the new password solution, and turned to the page of "folding method". The example is very simple, and he chose a passage from "The Texture of Nature":

"The process of filling the brain with knowledge can make people feel endless joy... This drives every creature to constantly seek itself, explore the future, and change the world."

And below it is a string of numbers, representing the first letter of the first few sentences.

Pick out those characters and recombine them to get a sentence:

"Knowledge, you are my god, please allow me to bow down to you."

This, this tone, why is it so similar to that librarian.But author i and librarian i should not be the same person.

That kind of inexplicable uneasiness rose again from Yuzhou's heart, could it be...

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Explain in words:

The original meaning of "crib" refers to the entrainment when cheating in the exam, and in cryptography, it means an unencrypted text or string.

It was widely used in the deciphering of "hidden mystery" cipher machines during World War II.

Sometimes, for various reasons, the Germans would encrypt and send the same message content with the old and new parameters; at this time, it is possible to use the encrypted message sent with the old parameter as a crib to crack the ciphertext of the new parameter.This crib is called "Kiss" (Kiss) at Brechley Manor.

In order to obtain the required crib, the British will deliberately create some incidents, which will cause the German army to use certain words in the incoming and outgoing messages.If mines were intentionally laid in a certain area, the local German army would immediately report to their superiors and request that engineers be sent to clear the mines.In this way, the word "landmine" must be included in the correspondence.This method of obtaining the crib is called "Gardening" in the Brechley Manor, and the British have tried it time and again.

.........

Confirmation of crib

Suppose it is confirmed that an encrypted message contains a piece of crib content, then align the ciphertext and the crib side by side, and then compare the upper and lower letters one by one; if at least one of the upper and lower letters is the same, move the crib to the right by one, and continue Comparison; until it is found that the two do not have the same letters in all the corresponding positions, then this string in the ciphertext is likely to be the encrypted text corresponding to the content of the crib, so the corresponding relationship between some encrypted and decrypted letters in these positions can be obtained .It can be proved that only a small number of combined settings of the wheels of the "Hidden Enigma" machine can encrypt the given crib into corresponding strings at those positions, thus eliminating a large number of wheel combination settings that do not meet the requirements. This greatly simplifies further deciphering work.According to statistics, as long as a crib containing about 30 letters in an encrypted message can be cracked.

Some "hidden mystery" telegrams of the German army are very long and need to be sent several times, so there will be a reminder at the beginning of the subsequent telegram; for example, the last telegram was sent at 23:30, then the beginning of the next telegram will be There should be "FORT23302330" ("Continue the message at 23:30", where the time is to be repeated).Since the "hidden mystery" machine uses the sequential letters on the keyboard to represent numbers (QWE...P to represent 123...0 respectively), the letter Y can also be used to represent the space between words while representing the number 6. So the telegram begins with "FORTYWEEPYYWEEPY".This string of characters is the most famous crib in the password warfare of World War II. Both the Poles and the British used this form of crib to decipher some German telegrams.

All of the above are from Baidu.Have fun, everyone.