When will I have a long tassel?

Zhongguancun, electronic accessories market.

The Zhao brothers came to a counter that said "Software Services". Zhao Xingwang coughed lightly. The young boss at the counter who was immersed in writing code in front of the computer looked up at them and asked lazily: "Do you want to buy it?" What?"

"I would like to ask, can you do software unlocking here?" Zhao Xingwang asked.

"What software?" The young boss obviously became more energetic. He stood up and asked across the counter, "Is it domestic software or foreign software?"

"It's made in China, a mapping software." Zhao Xingwang said.

"Domestic software is a bit troublesome." The young boss frowned, "Foreign software is easy to crack, foreigners are very stupid, and basically have no encryption methods. Domestic software is much more troublesome, and those programmers are not good at making serious software. , the encryption algorithms are more complex than the last, which is very difficult to understand.”

Zhao Xinggen said coldly: "Just tell me if you can solve it. Money is not an issue."

"Haha, the boss is joking, we are in this business, there is no way we can't understand it." The young boss's face immediately burst into laughter, and he greeted: "Come on, you two come to my counter to talk, I have Coke here."

The Zhao brothers entered the counter, and the little boss found two plastic stools from nowhere for them to sit down, and as expected, he gave them both a can of Coke, and then asked: "What software are you trying to solve? "

"Have you heard of Huaxia Woodcarving Design Software?" Zhao Xingwang asked.

As soon as these words came out, the little boss was immediately stunned, and then he smiled bitterly and said: "No way, this software is so popular now?"

"What do you mean?" Zhao Xinggen asked sensitively.

The young boss pointed out with his hand and said: "In this market, there are at least five or six companies that have taken over the task of breaking this software. It has been more than a week, and I haven't heard of any company breaking it. I and a few buddies When I was smoking outside, I heard them say that this software is so wicked, it uses two dongles for cyclic encryption, and no one knows how its algorithm works."

"Two dongles?" Zhao Xingwang grinned. It seemed that the machine had really invested in preventing piracy.

The control program of the Changying wood carving machine actually has two parts. One part is to use wood carving design software to produce digital files that meet specific drawing specifications. This part is completed on the computer. The second part is to read the digital file and convert it into the control signal of the milling head according to a certain algorithm. This part is completed in the CNC module of the machine tool.

If one part of these two parts can be cracked, the algorithm of the other part can be deduced, and the entire wood carving control program will be cracked. The program for the CNC module was written directly on the rewritable chip and no one could copy it. Therefore, Zhao Xingwang pinned his hopes on the drawing software, hoping to crack the coding rules of the drawing software and use it to infer the CNC module. program inside.

There are more than one or two who have the same idea as Zhao Xingwang. Longhu Machinery Factory is not the only one who is interested in the wood carving machine market. Long before the Zhao brothers came to the capital, other machinery companies had already sent people to Zhongguancun to find ways to crack the software.

There are various software encryption technologies in this era, including encryption with a serial number on the program, encryption using special methods on floppy disks, and hardware encryption. The last method is to write the decryption program on a rewritable chip, and then connect the chip to the card slot of the motherboard, or connect it through a serial port or parallel port. This is the so-called dongle.

The hardware encryption method is more expensive and troublesome to use. The advantage is that it has good confidentiality and is not easy to crack. It is not easy, but not necessarily. Some experts can analyze the encryption principle by monitoring the communication between the dongle and the host, and then use software to simulate the encryption process to achieve decryption.

When Tang Zifeng arranged for New Jingwei Company to develop wood carving software, he considered the issue of confidentiality. When he mentioned his idea to Zhao Yuntao and Liu Xiaohan, they immediately suggested that they could use dongles for encryption. They also boasted that when they were practicing stalls in Yibin Building, they had also unlocked dongles for others and were very familiar with this thing. It's understanding.

Because they knew that dongles were not absolutely confidential, Zhao and Liu decided to equip the software with two dongles. The two encryption chips would encrypt the software cyclically, leaving the cracker at a loss.

Lin Yiji resells the drawing software to wood carving shops. Each set of software comes with two dongles like this. When installing software, the dongle must be plugged into the computer for the software to run smoothly. Without these two dongles, the software cannot run. After some people buy the software, they try to copy it and use it on other computers, but the result is completely useless.

The graphic files generated by Huaxia Woodcarving CAD are ultimately encrypted by a dongle. After encryption, a file is formed that is completely composed of garbled codes. No one can identify the definition of various graphics in the file, so there is no way to know. How the control program of the wood carving machine works.

"You said that five or six stores have taken over the task of cracking Huaxia software. How are they progressing now?" Zhao Xinggen asked.

The little boss shook his head: "It's not going well. The boss of the shop next door to me has a master's degree in computer science. He used to work in some research institute and his level is very high. In the past two days, I saw that half of his hair has fallen out, but I didn't listen. Tell me about any progress."

"So, can you untie it?" Zhao Xinggen asked again.

The little boss said: "I can only say give it a try, but I can't guarantee it. However, I have to say something ugly up front. You have to pay part of the money first. If it is solved later, you will pay the other part. If it cannot be solved, you will have to pay the other part." I won’t refund the previous money.”

"Why should you get money if you haven't untied it?" Zhao Xinggen said angrily.

The little boss smiled and said: "Boss, this kind of thing is just a matter of luck. No one dares to say that they can solve the program. If you can't solve it, you won't pay. Then who will pay attention to doing this kind of thing? We all here This is the rule. Negotiate the price first, and then pay 30% as labor fee. If it cannot be untied, the 30% will not be refunded. If it is untied, you will receive the remaining 70%. If you don’t believe it, you can go to another stall. Go and ask.”

"Is there such a rule?" Zhao Xinggen didn't believe it, but looking at the calm look on the little boss's face, he had to believe it. This kind of thing can be verified by just going out and asking. I'm afraid the little boss won't lie to his face.

"How much does it cost to solve this procedure?" Zhao Xingwang asked.

The little boss stretched out a slap. Zhao Xingwang was stunned: "500?"

The little boss was happy: "Boss, can I ask you to do it for 500?"

"You mean 5,000?"

"That's right, pay 1,500 first, and if successful, then pay 3,500."

"This..." Zhao Xingwang turned to look at his brother, unsure whether he should spend this wasted money. The conditions mentioned by the young boss are indeed a bit risky. What if he does nothing after receiving the money?

Zhao Xinggen gritted his teeth and said decisively: "Give it to him!"

Zhao Xingwang paid the little boss 1,500 yuan and gave him a set of wood carving drawing software bought from Linyi Machine for him to use when cracking. The wood carving machine tools and drawing software sold by Linyi Machinery are sold separately. This is because some wood carving shops only buy one machine tool, but they hope to buy two sets of software so that two people can design at the same time. Of course, some wood carving shops require it. Two machine tools, but only one set of software is needed.

If the Zhao brothers wanted to crack the drawing software, of course they had to have a sample. They had someone buy this software from Linyiji alone. The software box comes with two dongles, but Zhao Xingwang doesn't know their functions.

After paying the money, taking the receipt from the small boss and a simple agreement, the Zhao brothers turned around and were about to leave, when they heard sirens outside the market. Then, four policemen entered the supporting market aggressively and went straight to a counter. In front of the counter, a police officer led by him asked sharply to the two young people at the counter:

"Are you two Deng Lei and Ling Jianping?"

"I am Deng Lei, I am Ling Jianping." A young man asked tremblingly.

At this time, all the surrounding merchants turned their attention here, and a few brave ones simply came forward to see what happened.

"Have you cracked this software?"

The policeman earlier took out a packaging box and asked the young man named Deng Lei.

The Zhao brothers stood nearby and watched. When they saw the packaging box, both of them felt a little bit in their hearts: Wasn't it just a box like this that they just handed over to the little boss? This is clearly a set of Chinese wood carving and drawing software.

There are many merchants who had the same reaction as the Zhao brothers. Someone quickly hid a similar software box on the counter, and then pricked up his ears to listen to what was going on here.

"I...we have never seen this..." Deng Lei's voice trembled, making people hear the meaning of "there is no silver here".

"The two of you are suspected of infringing on software intellectual property rights. The amount involved is extremely large. We have received a report. Please come back with us to cooperate with the investigation." The policeman didn't care about Deng Lei's defense at all. He announced the two's crimes loudly. Then, several police officers who came with him opened the counter, went in, pulled the two people out, and quickly handcuffed them.

When the police took Deng Lei and Ling Jianping out of the supporting market, the leading policeman turned back, held up the software box in his hand, and said loudly:

"Everyone, we have received reports from the public that there are no less than 10 merchants in this market trying to crack the Huaxia CAD software. New Jingwei Company has reported the case to the police. The two people just now have handed over the software they cracked to the criminals. manufacturers, and illegal manufacturers produced infringing wood carving machine tools.

"At present, the person in charge of the manufacturer involved in the case has been arrested. He confessed that it was Deng Lei and Ling Jianping from this market who helped him crack the software. Here, I warn all merchants who try to crack this software not to defy the law, otherwise the law will Will be ruthless!"