Everyone may subconsciously think that attacking a computer from the network is much more difficult than actually facing a computer, but in fact, this is not absolute. It can only be said that each software has different functions and the focus of the programmer's work. The defense against local intrusion and the defense against network intrusion are different.
After being reminded by Gao Bo, Qu Sen suddenly realized that although he couldn't break through from the front, he knew the software's identification mechanism for network access.
The two software patches made by Wuyi were mainly focused on local defense. There didn't seem to be any security upgrades for the network. In terms of data transmission mechanism, except for adding a regional identification module to the relay station management software, there were no changes in other aspects.
In particular, the relay station system's function was to forward. As long as he connected a virtual device port, the other side would automatically transmit the command to be forwarded.
Compared with cracking the structure of the entire database, cracking the code of a command was many times easier.
"Roar ~ Roar ~ Roar ~" Qu Sen moved the mouse on the computer screen with a smirk and opened the C + + editing interface. Recalling the network user connection mechanism and port information of the relay station system in his mind, he began to type in the command line.
At 11 o 'clock in the evening, the people of 510 returned to the dormitory one after another.
The lights were off, and everyone saw Qu Sen's "pale" face with a strange expression under the backlight of the laptop monitor at first glance.
Several people in the dormitory began to whisper, wondering what had happened to a classmate. Xiao Nuo, who had always been known for his strong logical thinking, quickly made his own judgment: "It is estimated that a beauty promised some benefits, and the silly boy was caught to work."
Xiao Nuo's judgment was unanimously agreed by the brothers in the class, but everyone sensibly did not disturb the "silly boy" and went back to their bunks to sleep.
Who knew that when they woke up, a silly boy with a pair of dark circles was still busy in front of the computer.
In the morning, Qu Yue, Wu Zhanghe, and Xiao Nuo went home with their suitcases. Ge Cunshan and Liu Wei stayed at the school during the summer vacation. Although they did not leave, they went to the computer room to fight. Before going home, Gao Bo was worried that Qu Sen would starve to death next to the computer, so he kindly went to the service center to buy some bread, ham, cola, and so on for him and put them on the long table.
Seeing Qu Sen grab the bread and put it in his mouth, and his hands were still busy on the keyboard, he sighed and left with a simple bag.
Qu Sen was not fully devoted to it, and he didn't even have time to eat. It was just that the deadline given by Zhou Li was too short, and he dared not to waste any time. Not to mention eating, he couldn't help but run to the toilet.
Qu Sen sat in front of the computer for the whole night and spent half a day working. Finally, he used C + + to write a small software that could run on the phone. Through the data cable, he simulated the network environment and entered the computer.
After some parameter debugging, he finally connected to the signal relay system, but the connection request could not go through. This was because Qu Sen's fake identification code was not complete.
He worked until midnight, and after countless failures, the connection status of the phone software interface finally showed that the connection was successful.
"Hehe … Hehe … Hehe …" A series of strange laughter suddenly rang out in the silent dormitory. Ge Cunshan and Liu Wei were so shocked that they immediately sat up from their beds. Four pairs of eyes simultaneously looked at Qu Sen who was holding his phone and laughing foolishly.
"Damn, Qu Sen, are you crazy?" Ge Cunshan asked worriedly.
"It's okay, it's okay! You guys go to sleep. "Qu Sen finally came back to his senses and apologized to Ge Cunshan.
"Sleep my ass! You're laughing like a lunatic. "Liu Wei was relieved after confirming that Qu Sen looked normal.
"I'm not sick, I'm not sick, I'll go to sleep right away!" Qu Sen comforted Liu Wei, and then looked at the computer and typed something.
Ge Cunshan and Liu Wei looked at each other. They both looked like they were going crazy, but they couldn't say anything. They could only lie down and go to sleep.
Qu Sen didn't go back on his words. He typed on the computer for a while, then left the chair that he had been sitting on for a day and a night and went straight to his bed. Not long after, he started snoring.
The message from the relay system had been successfully received by Qu Sen. The packet was only a few kilobytes big. Next, they had to rely on the computer to calculate the encoding mode of the message. Qu Sen was already very sleepy, and even if he wanted to help, he couldn't.
When Ge Cunshan and Liu Wei woke up in the morning, they saw Qu Sen sleeping on the bed without taking off his shoes. Looking at his posture, it seemed that he hadn't moved since he started sleeping. The two didn't care about him, and after breakfast, they went to the computer room.
After lunch, Ge Cunshan had to come back to take over his shift. When he saw that Qu Sen didn't come to eat, he ordered a meal for him.
When he went back to the dorm, he saw that the "silly boy" was still sleeping. Just when he was hesitating whether or not to wake him up, the laptop suddenly made a crisp "ding" sound.
Before Ge Cunshan could react, Qu Sen had already jumped out of bed. The back of his head hit the edge of the upper bunk bed, but he didn't care. He stepped to the side of the table, grabbed the mouse, and shook it twice.
After the laptop screen was awakened from the power saving mode, Qu Sen first took a look at it with sleepy eyes. He was stunned for a full five seconds, and then a burst of owl-like laughter burst out from his throat.
"You're crazy!" Ge Cunshan looked at Qu Sen's crazy appearance and couldn't help but mock him.
"No, no, no, I'm not crazy. I'm very normal, very normal!" When Qu Sen replied, he couldn't hide the smile on his face.
"If you're not crazy, then hurry up and eat!" Ge Cunshan put the food on the table, picked up his military belt, and put it around his waist as he walked out of the dorm.
There were three more minutes before the shift, and he didn't have time to watch Qu Sen go crazy.
When he went down to the first floor, Ge Cunshan finished his shift with the students on duty. The laid-off students hurriedly ran to the cafeteria. Ge Cunshan had just sat down at his shift when he heard a burst of creepy laughter coming from upstairs. He didn't need to look to know that it was Qu Sen, the crazy guy.
Ge Cunshan shook his head and didn't care what Qu Sen was laughing about. He flipped through the registration records of the previous shifts.
In less than five minutes, he heard a series of hurried footsteps coming down the stairs. Ge Cunshan then saw Qu Sen carrying his laptop and running out of the dorm.
Qu Sen ran towards Professor Wu's workshop for a while. Suddenly, a smirk appeared on his face. He then slowed down and walked slowly.
In Professor Wu's workshop, Zhou Li was still trying to improve the drone's anti-jamming capability by optimizing the drone's audio and picture data encoding method and adding error correction plug-ins to the control terminal.
However, after a period of continuous experimentation, she helplessly discovered that although these two methods were somewhat effective, to solve the problem at its root, she still had to think of a way to solve the problem from the hardware.
She helplessly pushed the keyboard back into the computer desk. She stretched her body and turned to look at Li Ying, who had nothing to do, and said, "Are you sure you want to go home? Aren't you afraid that your dad will give you a hard time? "
"I have to go home. My mom has already called me a few times." Li Ying had already gotten used to her long hair. She used her hand to stroke it. She glanced at Zhou Li and smirked, "What about you? Don't tell me you really want to go home with Qu Sen? "
"Ah, it doesn't matter if I want to or not. The key is whether or not he has the ability." Lady Zhou smiled proudly. She sounded confident that Qu Sen wouldn't be able to crack the two software databases in the specified time.
"Don't be so cocky. The two relay systems and the command system database have the same coding mode. As long as Qu Sen decodes one, he won't have to waste any time on the other one," Li Ying reminded her with bad intentions.
Zhou Li laughed and said, "I've calculated. With the speed of his laptop, no matter which software database he decodes, it will take at least half a month to decode it. You're just a little eunuch. Don't worry about the emperor. "
"…"
Just as the two girls were insulting each other, the door to the waiting room was opened from the outside. Neither of them turned around to look. At this time, there was no one else who could walk in without knocking except for Qu Sen.
Li Ying saw Qu Sen find a chair and sit down weakly. There were faint dark circles around his eyes. He probably hadn't even washed his face. She knew what was going on.
She smiled and asked, "How is it, Great Expert Qu? Did you get it done?"
Qu Sen didn't say anything. He only looked at Li Ying with a bit of "grief and indignation."
"Aiya, it seems like Great Expert Qu is in trouble. Why don't you beg me? Your Big Sister Qu doesn't mind helping you." Li Ying playfully raised her eyebrows at Qu Sen as she spoke.
"I don't need you. If you have the ability, then break it for me to see!" The first half of Qu Sen's words were directed at Li Ying, but the second half was directed at Zhou Li.
"Don't give me that. Don't think I can't guess what you're thinking. You just want to learn from me." Zhou Li seemed to have seen through Qu Sen's expression. She proudly added, "I'm telling you, you only have less than a day left. After a little while, Yingying and I will be booking tickets to go home."
"I don't believe you can break it. Don't worry, no matter what method you use, I definitely won't learn it." Qu Sen said angrily.
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