(Again, I would like to state that I am a liberal arts student, so please don't bother with the password cracking process.) Ask for recommendation votes, ask for collections, ask for forwards~~~)

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We were all frightened by Taka Kato's sudden uplift.

"Did Ouyang inadvertently say something that stimulated Dean Kato? Is he okay? Do you want to ask Brother Meng to knock him out and take a break? The stallion asked worriedly.

"Ignorance! It's not like I haven't slept for five days and five nights in a row, I eat well and sleep well, but I just don't have time to wash! Do you think I'm as stupid as those old antiques? It's that my apprentice didn't sleep much stupidly, well, this is actually a combination of chaotic encryption and rotary wheel encryption, hahaha, finally let me know your encryption method! Taka Kato turned on the computer, clicked on a piece of software that I had never seen before, and began to operate.

"Hinder~ The operation interface of this software is very cute.,You can also decipher the password.,Where can I download it?" I asked, thinking that if I could, I would also get one to study and study, and if I encountered a problem like this in the future, I could try it myself, and if I could solve it, I wouldn't need to ask anyone.

"Ignorance! This is my own software, the only one in the world, any password in the world, as long as I know the encryption algorithm, it is impossible to unravel! Kato Takashi looked up proudly and said, the greasy hair on his head reflected the light of the overhead lamp one by one, and with the momentum of the software in hand password on his face, he looked so peerless and independent.

"Dean Kato, now that you know the encryption algorithm, how long will it take to decipher it?" The stallion couldn't help but ask, the expression on his face trembling, for fear of being complained about his ignorance again.

"Well, it depends on the degree of password encryption, if it's fast, it will be fast, if it's slow, then I don't know." Taka Kato seemed to be in a good mood right now and did not show an anxious look at the stallion's inquiry.

"Ouyang, what should I do? Wait or go? The stallion asked.

"It's come to this point, it's not too bad for half a day, let's take a look first." I said.

Dajiu Gou was not interested in these and sat silently on the sidelines, he was used to practicing alone when he was in the Apon Valley, and he was very tolerant of loneliness, so you let him sit all day like this, he has no problem.

"Hmph, there are no more than ten people in the world who know this encryption algorithm, fortunately you have met the great me, otherwise you will never want to crack it for the rest of your life." Takashi Kato stared intently at the disc-like software interface and said proudly.

The stallion and I didn't speak again, but stood on either side of Taka Kato, ready to witness the moment when the black card code was cracked.

I found that Taka Kato seems to like to scare people, no matter what you say, he can make you speechless from a scientific point of view, is this related to his ostracism from the mainstream scientific community?

And the reason why we don't talk anymore is that we don't want to look like we're uneducated in front of Taka Kato, but also because if we can't help but hit him, it's bad.

The first part of the back of the black card, a dark web URL made of Navajo passwords, had long been deciphered by Taka Kato, and he wrote it on a piece of paper and put it aside.

If I didn't have the login password, it would be useless to just know the URL, so I now put aside the other thoughts in my mind and watched intently as Takashi Kato deciphered the password.

The interface of this cracked software is two disc-shaped shapes, and Kato Taka copied the characters on the black card, and then scrambled the characters into two parts, and entered them into the space of the disk.

"Hehe, Ouyang, thanks to your reminder, in this password, there are hidden plaintext characters equivalent to the ciphertext, which correspond to the longitude and latitude of the earth, and the multi-table substitution method needs to be used here, look, under the plus sign of the disc on the right, it represents the characters of the plaintext, and under the plus sign of the disc on the left, it represents the encrypted ciphertext characters." Takashi Kato said happily, the expression on his face not at all like he was cracking a complex code, but like a child playing with his favorite toy.

"Dean Kato, to be honest, I really can't understand it, please continue." I was impressed by Taka Kato's miraculous decipherment skills, and as I watched his fingers move rapidly between the keyboard and mouse, I sighed in my heart that Taka Kato was indeed worthy of his name.

"Well, it's right for young people to be modest and studious, and I'm optimistic." In the face of my inquiry, and the stallion with a confused face and did not know the truth, Kato Takashi rarely did not open up, but continued to start the code breaking with a very good attitude.

I saw that he rotated the characters in the right disc of the computer to below the plus sign, and then the disc on the left automatically rotated with it, and in this continuous repetition process, Kato Taka said: "Look, the characters corresponding to the plus sign on the left are the result of encryption." ”

This is completely a mathematical thing of Westerners, this thing has nothing to do with Zhou Yi gossip and dragon hunting, I shook my head and said I didn't understand.

"It's okay, it's okay, classmate Ouyang, although you are not very talented in mathematics, I am still proficient in many subjects, and I can teach you a lot." Takashi Kato seemed accustomed to our incomprehensible expressions, and said as he concentrated on deciphering the code.

After a while, he stopped the rotation of the two discs and changed the alphabetical order of the parts of the two discs according to certain rules.

Although he knew that we didn't understand, he kept explaining it to us during the decipherment process.

"Every plaintext character is encrypted in this way, this seemingly simple, clear dynamic encryption process, in fact, there are complex encryption rules, if you don't know the encryption algorithm, it is difficult to crack, some people have called this kind of password and the German Enigma cipher machine in World War II, called the world's two most difficult passwords, simply using the letter frequency analysis method, is useless." Takashi Kato said.

Enigma cipher machine, a thunderous name, the cipher compiled by this cipher machine is the Nazi Germany in World War II, using this kind of cipher message to transmit intelligence, so that the Allies planted a lot of god-level ciphers.

The Enigma cipher machine is also known as the rotor cipher machine because it turns, and that's the key. When a letter key is pressed on the keyboard, the corresponding encrypted letter is displayed on the monitor by a light bulb flashing, and the rotor automatically rotates the position of a letter.

To explain the Enigma password in detail, it would have to cost tens of thousands of words, and now I am more concerned about what the black card password is cracking.

"So, Dean Kato, what is the result of the codebreaking?" I asked.

The stallion stared intently at the computer screen, for fear that the cracked password would disappear, and Takushi couldn't help but stand up and wait for Kato Taka to announce the result.

Takashi Kato closed his eyes tightly, as if he had experienced a marathon, sweating profusely, and after a while, he opened his eyes and adjusted his breathing, and then said slowly: "$10 million, don't fall on the bill." ”