Bit Mania [Hacking]

Early on Saturday morning, Luo Zixin carefully wrapped the BIOS chip and put it in his bag, and took a two-hour bus to Quhai University Town adjacent to Huanjiang Town.There are a total of three universities here, and Quhai University, where Lin Guang and Li Yunze belonged, was one of them. It was considered a very good key university at that time, with a strong faculty.

When he got off the bus, Lin Guang was already waiting at the station. The two nodded to each other and walked into the campus of Quhai University together.Because university campuses are generally open to the outside world for sightseeing, Luo Zixin was not obstructed when he entered.

The scale of the institution of higher learning and the middle school of the town cannot be equated. The entire campus is full of trees and lush greenery. The young students of this era are very scholarly. Walking on the stone road of the school in twos and threes holding books constitutes a beautiful scenery. .

The two walked into the school's public computer room, where there were nearly 20 computers of the same color. Huaguo hadn't connected to the Internet at this time, and the computers here were only connected to the school's local area network with twisted-pair cables for mutual communication. share data.Milky white keyboard, milky white chassis, the chassis at that time seemed to be horizontal and flat, the height of a palm could not be reached, and the cathode ray tube monitor was placed on the chassis.

As a precious resource, the computer room is only open to students for two days every Saturday and Sunday, and it will be closed early in the afternoon, and it is difficult to occupy a place. This is why Lin and Li cannot complete the project in the computer room, so they need to borrow from their professors The reason for the computer.

"Here!" Li Yunze, who was sitting in front of a computer in the computer room, waved to the two of them. No wonder I didn't see anyone at the station before, so I came here to occupy a seat.

The two quickly walked a few steps and came to the computer. Li Yunze stood up and gave up his seat to Luo Zixin. A strange young man sitting in front of the computer next to him gave them a strange look, as if he didn't understand why the two college students would So respectful to a child.

Although Luo Zixin has been dissecting the computer these days, he has thoroughly figured out the computer at home. If the computer had life, he would have been so ashamed and angry that he would have committed suicide long ago, but in fact, this is the first time the boy has come into contact with life. Computer.The computer in front of him had been turned on by Li Yunze, who was writing some programs on it. Luo Zixin glanced at it and knew it was a background application.

After closing the programming software, he took out the BIOS chip in the bag and began to explain to the two of them in detail what to do next.

"There is a problem with the original hardware system settings of this BIOS chip. It stores the most important basic input or output programs of the microcomputer system, system information settings, power-on self-test programs, and system startup bootloader programs. Once the parameters appear garbled, It will make the computer unable to start normally. What I will do next is to copy a complete BIOS hardware program suitable for it from the computer of the same model as the computer you gave me, rewrite the CMOS, and make up for our chip. The broken module."

The two computer science students were not mediocre either. After listening to him, they pondered for a while, then nodded suddenly and said, "It turns out that there is something wrong with the BIOS. No wonder we couldn't find out what went wrong. It's not too late. Let's start now."

Someone sitting in front of the computer responded, turned off the machine and replaced the damaged chip, and then put his hands on the keyboard under DOS according to the method he conceived the night before. When he was at home, he used the broken chip I have practiced typing on my computer for a long time, and now I am using it officially for the first time, the touch from the fingertips is still enough to shake the boy's spirits.

Soon he called up the BIOS program, but he installed it on the chip once, but found that the copy failed.

"YOUHAVENORIGHT." Zixin softly read the English words in the dialog box in front of him. He could understand this word, and because he understood it, his delicate eyebrows frowned.

Lin Guang and Li Yunze stepped forward, their expressions became ugly.

Luo Zixin turned around and asked, "How do you install the BIOS of these computers?"

Li Yunze sighed: "We should have thought that this program is a non-free software independently developed by American Computer Corporation. In order to prevent their technology from leaking out, the program was directly poured into the hardware through an encoder on the production line. , and then encapsulated, the program can be said to be permanently dead on it, and we can't misappropriate them at all."

Hearing this, Luo Zixin frowned even deeper: "Then what should I do if the BIOS settings are messed up?"

The two college students looked at each other and smiled wryly: "...it's very troublesome, this is foreign technology, we have to report it to the school, the department declares the funds, and then...replace the whole machine."

"The United States does not only sell parts and components?"

"They are sure that we don't have this technology in China..." Lin Guang didn't say any more.

The three of them fell into silence, only Luo Zixin's rapid typing on the keyboard echoed in the heavy atmosphere.

Suddenly, the boy sitting in front of the computer asked, "What is the Cauchy-Riemann equation of the complex variable function?"

Lin Guang was stunned for a few seconds, then subconsciously replied: "Du eliminate Dx..."

"What about its power function?"

"No, I don't know..."

"That's a bLna power algorithm of a natural constant!" A college student sitting next to him suddenly interrupted.

"Thank you." Luo Zixin didn't pay too much attention to the other party. After getting the answer, his hands kept moving, and he ran the mmc command to start the console, and loaded the group policy management unit to it: "Substitute the single connectivity domain into its high-level guide What is the Taylor series given by the formula?"

"Yes... yes..." The college student next to him pondered for a while, then patted his thigh and stood up: "Wait a minute, I'll help you ask!"

He took down the data given by Luo Zixin, walked to a nearby computer, and patted a boy on the shoulder: "Senior, I want to ask you a question..."

Lin and Li watched this scene with wide eyes, and it took a long time to find their voice: "You, what are you doing..."

Luo Zixin explained to them: "Unblock the BIOS program!"

"...How is this possible?!" Li Yunze growled a little out of composure: "That is a system packaged by the top experts of the American AMI company, how could it be possible for you to crack it easily!"

Luo Zixin waited for the answer from the college student who went to rescue the soldiers. Now he took the time to turn around, blinked his not-so-small eyes and looked at the two of them steadily. After a while, he said, "Try it."

The boy neither promised nor tried to persuade them, only these three words were understated, but the two college students were taken aback when they heard the words, and somehow they felt ashamed.

"Taylor's series has come out!" The strange college student went back and forth, took his senior with him, and the two of them took out a piece of scratch paper that was written beyond recognition, and reported a series of numbers to Luo Zixin.

Zixin quickly entered the decryption algorithm. Seeing that the 56 data blocks in front of him began to loosen, he quickly pulled out a blank piece of paper, copied the encrypted calculation module, and handed the note to two enthusiastic strangers: "This is Next question, do me a favor, thanks!"

These two are actually students of the school's mathematics department. Although they couldn't understand what Luo Zixin was messing with on the computer, they were quite interested in novel math problems, so they accepted them without hesitation, and gave the answer after a while. Handed it over to Luo Zixin.

However, it is really worthy of the handwriting of the world's top companies. The 512-bit key is like a rotten Chinese cabbage. Layer upon layer upon layer, almost endless.

As the decryption progressed, the encryption algorithm involved became more and more difficult to overcome. The two students from the Department of Mathematics soon became overwhelmed and rushed out of the computer room to call for helpers.

More and more students were gathered, one, three, ten... Soon the computer room was crowded with dark heads, among them even mathematics masters and graduate students from other departments appeared.Lin Guang and Li Yunze sat at the side, and under Luo Zixin's command, they dismembered the modules one by one, divided them into different math problems, copied them on white paper, and passed them on to the students who came to help. In the hands of the masters, the division angle is very subtle, which makes people feel an inexplicable sense of comfort. The boring study on weekdays will inevitably make this group of studious college students feel a little bored, but for young people, nowadays full of Interesting challenges fully satisfied their competitive spirit, so that everyone couldn't help but count on the next one after solving one.

But there were too many people, and the later students hardly knew who was giving the orders. They only wrote the math problems that needed to be solved on a piece of paper, and passed them among the students. Whoever was good at which one would decrypt them. Which note.

With a large number of personnel input, the progress of decryption is also very fast. Luo Zixin watched the progress bar continue to advance, but his mood was not as joyful as Lin and Li, because the progress was slower as he went backwards, and there were still about 15.00% left. At the most critical technical core, it is already difficult to move an inch.

"Is no one able to solve the next question?"

There was a slight sigh.

Suddenly a boy jumped up and shouted, "I, I'm going to find my mentor!"

"I'm going to find my professor too..."

"I am coming too!……"