Bit Mania [Hacking]

"The loopholes I left in the Linux system at the beginning were mainly about processor scheduling. A large number of random numbers are arranged in the array, which does not affect the use under normal circumstances, but when multi-threaded processes are running at the same time, the memory will be occupied. If it is full, it will produce the illusion of overflow, just like a donkey carrying a flour bag across a river, once it falls into the water, it will be so heavy that it cannot get up, because it is well hidden, and ordinary people cannot discover the phenomenon of the flour bag becoming heavier.”

"Well, but so many random numbers are intertwined between various processes, and they affect the whole body. Unless the system is rebuilt, it is almost unimaginable to solve this problem with a patch package..."

"Indeed," Zheng Xiu twitched the corner of his mouth, "Unless they are all withdrawn, these systems can be said to be hopeless... But, why did I agree to you?"

As he said, he folded the manuscripts in his hands absent-mindedly: "There is a proverb in the world of mathematics - there is no function in the world that cannot be described by trigonometric progression. After discussing with Paul, we decided to start from this aspect. Although it is Random function, but the random number of the computer is different from the random number in the true sense. The random number in reality is absolutely unpredictable and invisible, and the difference in the computer is human creation after all. In the final analysis, it is just a set of simulation algorithms , which simulates the infinite average probability of random numbers."

Zixin's eyes lit up: "Yes, the random numbers in the computer are all pseudo-random numbers in the final analysis. Since they are pseudo-random numbers, they are also functions. Functions can be described by triangular series!"

He stretched out his hand to Zheng Xiu, wanting to take the manuscript, but he didn't want him to avoid him slightly. Zixin looked at Zheng Xiu suspiciously, and found that he had an expression he had never seen before.

Zheng Xiu showed hesitation, and finally asked: "Are you sure, do you really want to complete it?"

"……Why not?"

"As long as you master the vulnerabilities, it means you have mastered all the computers that use the Linux kernel... Zixin, believe me, within a few years, the usage rate of Linux in this world will reach an astonishing number. It is not an exaggeration to control most of the world, and then you will be the king of the cyber world..."

Zixin was silent for a while, and replied, "I know that."

"So why don't you... think again? You can't take it back after uploading it."

"No, Xiu, I understand your kindness, but I really don't need it. Because..."

Zheng Xiu asked urgently, "Because of what?"

Zixin winked at him and smiled: "Because I believe that a person's strength is never proved by making others weak."

After he finished speaking, he took out the manuscript from the dazed Zheng Xiu, and walked briskly into Zheng Xiu's study.Turn on the computer, start writing the algorithm on paper into a program that can run, and then debug and package it...

I don't know how long later, the door of the study was opened, and familiar footsteps walked in. Mr. Luo Zixin, Luo Zixin, had been conditioned by someone for a long time, and he wanted to take the milk cup when he stretched out his hand. , but warm skin.He turned his head away suspiciously, only to see Zheng Xiu holding his paw and kissing him.

Zheng Rabbit's eyes were shining brightly, squatting next to Zixin: "Luo Zixin, what should I do, I really like you so much..."

"..." Someone withdrew his hand in cold sweat.

The coquettish Mr. Rabbit didn't take it seriously, moved a chair and sat next to him, watching the other party cracking on the keyboard, his focused eyes sharpened the original soft side face, it was not amazing at first glance, but It's getting better and better.He just watched quietly, the smile in his eyes was almost overflowing.

Octo, you seem to be more exciting than your last life...

But... Zheng Xiu frowned again after thinking about it. In his last life, he first met Octo in the summer of 95. The other party looks very good now, but also, he has long since discovered the existence of Zixin today and Octo in 95. There is a big difference. Is all of this the influence of Qi Xingchu before, or...in the next three years, this person will experience...great changes? ...

"Xiu," Zi Xin suddenly remembered what happened during the day, and mentioned Zhou Xiao to him by the way: "There is a guy... who should know that I have something to do with Octo, that's what I told him... When you see him Pay attention too..."

To him, Zhou Xiao wasn't really something that needed to be taken seriously. He was writing a program while talking, and he didn't even look back, so he didn't see someone's face suddenly changed.

"Zhou Xiao..." Zheng Xiu rubbed the name between his teeth.

MS California Headquarters.

The phone rang, and Mr. Giles, the North American CEO of MS, rubbed his forehead, and answered the phone in a bad tone: "Director Fitch, where is the warranty again?..."

"No, sir!" The excited tone of director Fitch of the Redmond Laboratory came from the other end of the phone: "Good news, sir! The person in charge of IBM just told me that they found a fatal problem in the Linux system. Loophole!"

Whether it is a business or even the entire human society, there are no permanent friends and no permanent enemies.When a common foreign enemy threatens them head-on, the three major IT giants MS, IBM, and Apple, which were originally at odds with each other, have united, at least on the surface. After IBM discovered the Linux vulnerability, it decided to disclose the news to the other two companies after consideration, and gather everyone's strength to maximize the value of the vulnerability.

Giles was slightly taken aback when he heard the words, he had been stunned by the FSF these days, it was rare to hear a piece of good news, and it took him a long time to react: "...Then quickly develop a virus based on this loophole and send it out! At the same time, spreading the news that there are fatal vulnerabilities in Linux is definitely a heavy blow to their market trust!"

"But Mr. CEO, that loophole..."

"What's wrong with the vulnerability, how long does it take to write a virus?"

"No, I don't know...uh...please give us some time to research..."

"Give me a specific time!"

"Vulnerabilities are beyond imagination...We still need to think about it before we can start..."

Giles choked with anger: "You guys are so inefficient!... Oh, go, go, seize this opportunity!"

"Yes!"

An hour later, the phone on the CEO's desk rang again.

"The virus has been written? It's rare that you are still useful..."

"...No," Director Fitch said in a crying voice, "I'm sorry, sir, we failed..."

Giles lay down on the desk and said weakly: "I should have expected that you would not be able to do it... It's okay, if you can't do it in an hour, I will give you some more time, as long as you can write a virus..."

"No, sir, that vulnerability...that vulnerability...the patch has already appeared on the Internet!" His director finally cried: "The patch was released and downloaded on the official website of FSF and Linux, and now Linux kernel computers all over the world are It's time to update one after another...the loopholes are useless..."

"How...how did this happen...who on earth, who released the patch?!"

"It's Octo..."

"Octo...the evil octopus..." Giles slumped down on the boss's chair in a daze, the microphone dropped from his hand, was dragged by the telephone wire, hung in mid-air, shaking up and down...

"Redmond... got out of the way... out of the test papers... weeded out the spies... the loopholes were discovered... and they were filled..." His lips moved, and he kept muttering: "God, you sent him to play tricks on me Yes..."

"I don't believe it anymore, gather all the forces of the research institute to kill Octo, yes, it's him, don't care about anything else, you must kill him! Get him out and see how divine this guy is! Give me Notify me!"

"Sir, don't be impulsive..."

"I'm impulsive? Oh, if he doesn't die, I won't live! I can't live this life!"

A firm order was issued, and the entire software industry in the United States began to move. The working groups and research institutes of MS, IBM, and Apple lit up with clear lights, the sound of large-scale units operating, and the clatter of leather shoes hitting the marble floor. The sound resounded through the buildings, the IT behemoth of the United States broke away from its blood-red eyes, shook off the dust all over its body, arched its back, and exposed its fangs...

"It's getting late, I should go back...huh?" Zixin was about to turn off the computer, but the firewall alarm popped up suddenly. He opened it and immediately sat back on the chair.

It's not that he hasn't been hacked before, but Zixin can easily tell who is strong and who is weak. Zheng Xiu saw his unprecedented dignified expression, and there is no reason why he didn't understand the common advances and retreats over the years. He opened the machine next to him, took out a pen and paper from the drawer, and pulled the network cable to connect his own computer to Zixin’s computer through a special program. In this way, Xin obtained the exclusive authority and could share it with Zheng Xiu immediately. data.

This is a method that Zheng Xiu and Octo often used in their last life. Zheng doesn't know much about computer technology, and he can't explain the specific principles of the program, but it doesn't prevent him from describing the general functions to Zixin, who can understand it after a little thought. What he meant, at this time, I have to sigh everyone's own unique way of thinking, and the control program made by Zixin is almost the same as the previous life.

Zixin's computer can be said to be monolithic, and it is almost difficult to find loopholes. Hacker attacks are mainly based on loopholes, but now it is thankless to try to capture him by trickery. The majestic force changed its tactics after a little testing. Directly violent bombardment, garbage data packets were projected like crazy, and the network channel was suddenly like a blocked sewer pipe, full of sticky stench, making it difficult to move forward.

This is related to the inherent flaw of the machine's floating-point calculation speed, even Zixin was shocked in a cold sweat in an instant.It is especially necessary to be calm at this time. He forced himself to calm down, let go of the bandwidth limit, opened up ports in the terrible network channel, killed a bloody path, and killed several machines by surprise. The IP address table obtained by the person from the other side found out the location of their IP. As expected, who else could it be except MS, but he was a little surprised that the working groups of the other two major software giants in the United States also participate.

Really spare no expense, menacing na.Although he wondered when he had such a big influence and was besieged and killed by this group of guys, but now is obviously not the time to think deeply about these things. The hardware gap is too great, and there is almost no chance of winning, so there is only one way-to fight back and stop killing with killing.