Chapter 1092.2

Zhou Jiajia obviously misunderstood Yang Ming's words. Thinking of being kissed and hugged by Yang Ming before, her heart beat faster. Before, with Chen Mengyan and Lin Zhiyun around, Yang Ming would not do anything to her, but now they are not here , only Yang Ming and herself were left, so Zhou Jiajia would inevitably think more.

However, although Zhou Jiajia was a little apprehensive, she didn't reject these things from the bottom of her heart. She was just a little reserved. She went up to the second floor with Yang Ming and entered Yang Ming's small bedroom. On the bed, Zhou Jiajia didn't know what to do.

"Sit?" Yang Ming naturally didn't think too much. Seeing that Zhou Jiajia was still standing, he was a little surprised, so he waved to her: "Why are you standing? This is my home, so restrained?"

"Oh..." Zhou Jiajia blushed, and carefully sat beside Yang Ming, but there was a little expectation in her heart.

Yang Ming looked at Zhou Jiajia's appearance. He was surprised at first, and then immediately understood why Zhou Jiajia was like this. He reached out his hand very naturally, and embraced Zhou Jiajia's soft body in his arms. Zhou Jiajia didn't struggle, and fell to the ground In Yang Ming's arms.

"Dear little Jiajia, have you missed your husband these days?" Seeing Zhou Jiajia's shy look, Yang Ming couldn't help teasing her.

"Ah..." Zhou Jiajia was a little embarrassed when she heard Yang Ming say this: "Didn't you be a boyfriend and girlfriend first...haven't become a husband yet..."

"They're all the same, there's no difference." Yang Ming said brazenly, "Could it be that you don't want me to be your husband?"

"No way...of course not..." Zhou Jiajia quickly shook her head in denial.

Seeing Zhou Jiajia's cute appearance, Yang Ming couldn't bear to tease her any more, and lowered his head slightly. Zhou Jiajia seemed to realize something, her body trembled slightly, and she closed her eyes, but her eyelashes were still trembling. Obviously, she was very upset. not calm.

Yang Ming gently kissed Zhou Jiajia's lips. It was not the first time Zhou Jiajia had kissed Yang Ming. It was just that she was bold and proactive before, but now she felt a little embarrassed.

The two times at the resort and the movie theater of the classmate reunion, Zhou Jiajia was silly, a little stunned, and even forgot to be shy, but this time it was different. Rao, Yang Ming was already her boyfriend, Zhou Jiajia Still a little shy.

However, when Zhou Jiajia got used to it, she took the initiative to cooperate boldly.

Although Chen Mengyan and Lin Zhiyun were not at home, Yang Ming didn't want to act too hastily. After all, Zhou Jiajia would not refuse if he proposed it, but Yang Ming felt that it would be better for the two to take it step by step, otherwise Zhou Jiajia would definitely feel regretful.

After the long kiss, Yang Ming didn't make any other excessive moves. Zhou Jiajia's mood also calmed down, and she leaned in Yang Ming's arms, enjoying the warmth of the moment.

"Jiajia, do you know anything about the decryption of mobile phone passwords?" Yang Ming almost forgot what was going on. He called Zhou Jiajia upstairs just now to talk about the mobile phone, but Zhou Jiajia's coquettish appearance made him a little distracted. I put aside the matter of the mobile phone, afraid that I would do other things later and forget the mobile phone, so I hurriedly talked about the business.

"Phone decryption?" Zhou Jiajia nodded after listening, but asked a little strangely: "I understand, is your phone locked?"

"It's not my mobile phone, it's someone else's mobile phone." Yang Ming handed the mobile phone he got from the driver Chen Sisheng to Zhou Jiajia from his pocket: "I checked it on the Internet, and it's the latest one from dcikrs. The third-generation encrypted mobile phone..."

"Well, I've heard of this dcikrs company, and I've seen the news that they launched the third-generation encrypted mobile phone, but I don't have this mobile phone in my hand, so I haven't done research... So this is the third-generation encrypted mobile phone!" Zhou Jiajia Somewhat surprised, he took the phone from Yang Ming, and said, "That phone will start the self-destruct program if you make three wrong passwords, right?"

Yang Ming nodded and said, "That's right, it's that one, do you have a way to decrypt it?"

"I'm not sure now...but I can try it." Zhou Jiajia held the phone in his hand, looked at it briefly, and said.

"You...really have a solution!?" Yang Ming was pleasantly surprised after hearing Zhou Jiajia's words. Even Xiao Qing was sentenced to death on the phone, but Zhou Jiajia actually said that he could try it, which means there is still hope for things. However, Yang Ming reminded: "This mobile phone does not have a data interface for communicating with the outside world, and it is said that the flash memory chip is also specially made, and cannot be read and written by normal means..."

"This is not the main problem." Zhou Jiajia shook her head and said, "Without a data interface, you can find the jtag point on the motherboard of the mobile phone to communicate with the CPU, and use the flying wire to complete reading and writing. The measurement of the connecting line between the cpu and the font chip on the motherboard, which is the flash memory, can also analyze the jtag point from the peripheral circuit... But the key problem is that even if the data is read, the password inside is likely to exist in encrypted form Yes, this is tantamount to a waste of effort, because I don’t know the information of the CPU, so I can’t simulate running the program of the mobile phone in the computer. If it can be simulated, I can use a dictionary to brute force the password…”

Yang Ming can still understand what Xiao Qing said. After all, it is all the orthodox knowledge of computers, but these technologies mentioned by Zhou Jiajia are somewhat marginalized, which makes Yang Ming very confused. At least he does not know what jtag is. what.

"That means the hope of cracking it is relatively slim?" Although Yang Ming didn't quite understand what Zhou Jiajia said, he could still understand what Zhou Jiajia said.

"That's not the case," Zhou Jiajia said: "There is another more troublesome method, which is to use the hardware platform of the phone itself and combine it with a computer to complete the cracking, which can be achieved from a technical point of view."

"How should I say it?" Yang Ming heard that there is still a way, so he asked quickly.

"No matter how it is encrypted, what algorithm it uses, even if it is an algorithm that cannot be reversed at all, when you enter the password, the program will compare the password with the correct password, even after tens of thousands of encryptions After the comparison, there is also a comparison process. After the comparison, the program will perform a judgment and jump. If the password is correct, it will run the boot program. If the password is wrong, record the number of errors in the information area of ​​the mobile phone. Once When the number equals three, the self-destruct program will be activated. After knowing the operating principle of this phone, it is still possible to crack it." Zhou Jiajia explained: "In this way, there are two solutions to crack."

"Two?" Yang Ming was a little surprised when he heard it. It was already not easy to crack it, but Zhou Jiajia actually came up with two solutions.

"Hehe, there are only two solutions. Whether they can be successfully implemented is another question." Zhou Jiajia shook her head and said, "I just analyzed from the commonly used cracking ideas. The first one is relatively simple, but the risks it bears are huge." It is very big. Find a way to find the communication point of jtag, read out the program in the mobile phone, and then enter a wrong password once, then write the previously read program into the mobile phone, overwrite the mark recording the wrong password, and restore the program to its original state Although this approach seems simple, we don’t know whether it will cause any adverse reactions, because we don’t know the structure of the mobile phone, and we don’t know whether the information on the number of times the password is wrong is written in the flash chip of the mobile phone or in the In the cpu or other chips, if it is written in other chips, we will not only fail to achieve the purpose of recovery, but may directly cause the phone to start the self-destruct program because the program is inconsistent with the error count information in other hardware... "