The boss of a foreign organization called the police, claiming that he was defrauded by me

It's not that they have a bad memory, but they just didn't have enough access to more information before.

If they were allowed to search on their own, the best they could do was locate a general area on the retrieval system and then search through them one by one.

Those folders are not simply pull-out type, but are tied with traditional white thread perforations.

Every time you look through a copy, you have to carefully restore it to avoid messing it up.

This would inevitably take up a lot of time. Even if they were so many people and each of them handled some of the work, it would take at least until tomorrow to finish. Moreover, some folders contained so many reports that even a simple glance would take quite a while.

However, when they got the public key so easily, they were a little bit unbelievable.

Some people raised their doubts: "Is this public key really correct? Could it be from another system? Can it be used in the intranet?"

"Yeah, if it's wrong, then all our work will be in vain. These files are from a few years ago. Are they still using this key now?" another person echoed.

"No, it's precisely because it's from a few years ago that the time matches. If it was an archive from this year or last year, that would be wrong. This intranet was not built in the past two years!" Director Wang explained.

"In that case, the idea of ​​the ring was proposed by that person a few years ago, and this encryption method happened to be within his research scope. From the perspective of time, there is really nothing to question." Someone analyzed.

"That's right. Because it's a file from a few years ago, it makes people more confident in its authenticity..." After some discussion, everyone gradually felt that the public key was credible.

Apart from this, they have no other way to obtain the public key. Before trying it, they can only choose to believe it. At least for now, there is no reason to directly deny it.

Director Wang thought the same. He further explained, "Although the file was not directly about the key mission, the decryption requirements involved were related to the official communications of Neon Country. This key was most likely used in the decryption process at that time."

"Well, even if it is true, what we should pay more attention to now is the issue of personal keys. What exactly is that thing?" The director timely brought the topic back to the more difficult issue of personal keys.

"Generally speaking, if the key is changed regularly, how long is the cycle? Is it a month or a year?" someone asked.

"In our country, it changes every three months, while in some countries it may not change for several years. But overall, it usually changes at least once every six months," another person answered.

"For a country like Japan with advanced communication technology, changes should be faster, right? I estimate it will change once every three months at most..." someone else speculated.

"But if it is completely generated mechanically, this method doesn't seem very reliable. What if someone develops a corresponding decryption machine?" Someone expressed concern.

"Indeed, machine encryption is not as complicated as imagined. To a certain extent, human encryption is difficult to guess. A person can completely associate a new string of characters based on his mood or the information he comes across everywhere." The director nodded in agreement.

"Yes, the devil is always one step ahead of the good. With the continuous development of mechanical encryption, decryption machines are also constantly improving, and may even be better than others." Someone sighed.

"Then, if it is manually encrypted, what would the personal key from a few months ago be related to? For example, what happened recently in Japan?" Someone raised this question naturally.

Everyone began to ponder. If there was anything major that happened in Japan recently, it was nothing more than the convening of the parliament and the previous naval battle that was lost.

These two things can almost be said to be major events that shook the entire Neon Country, and even those who do not like to fight with the world would find it hard to be unaware of them.

In the modern era of the Internet of Everything, people cannot live without electronic devices such as mobile phones and computers. As soon as you open your eyes, you can easily get all the major events in the outside world. Especially the news that has made a sensation in the country, whether it is TV, radio, newspapers or mobile phone push, it will be overwhelming. Even if you don't actively contact this information, your colleagues or friends around you will mention it. It is impossible to completely eliminate it.

Therefore, if the password was set some time ago, it is very likely that the person who set it has organized the information that is most vivid in his mind into a string of characters. This is not impossible to happen. The structure of the human brain and the process of memory processing related information jointly determine this characteristic.

For example, when you are writing your homework with a pen in your hand, you listen to gossip or watch TV while writing. As you write, you unconsciously write down what you hear.

As civil servants, they must know more about major events than ordinary people, and even have to write relevant reports for self-reflection and criticism. This process is the same in every country, and no one can escape it.

As the communication technicians who set the password, they are even less likely to write it randomly without any basis. Especially for such an important matter, they will definitely connect the important matter in their minds with the password setting.

"In that case, we can definitely convert those two major events into codes! That is, the characters that communication technicians are most familiar with!" Xiao Zhou suddenly screamed excitedly. Not only him, but others also had a vague idea in their minds.

If ordinary people convert major events into passwords, they may combine them according to the spelling abbreviations and dates. However, such permutations and combinations are not fixed and difficult to grasp. As communication technicians who have been dealing with codes for a long time, they have their own professional way of writing. In their daily personal behavior, they often unconsciously show their work habits.

In the field of password setting, communication technicians often have their own unique habits, or they have a unique way of thinking that is very different from that of ordinary people. Their understanding of passwords is like an artist's understanding of his or her own works, full of uniqueness and creativity.

When we delve into the nature of personal keys, the answer seems to be obvious. After all, in this professional field, no one can understand each other better than these professionals. They may come from different countries, have different cultural backgrounds and work styles, but they can find a common language in the theoretical basis of cryptography.

When everyone wrote down the string of numbers on paper without hesitation and compared them with each other when they made it public, the result was surprising - everyone's answer was exactly the same, and even the way of writing special symbols was surprisingly consistent. This consistency was not only reflected in the numbers, but also in the way of thinking in their professional fields. These dozen people, as if pulled by an invisible force, came up with exactly the same answer.

On the contrary, if everyone's answers are varied and there are huge discrepancies, then this assertion about professional thinking is probably untenable. If everyone thinks differently and draws different conclusions, then the so-called "professional thinking" is just empty talk.
However, this is not the case. The answers given by everyone are surprisingly consistent, which undoubtedly increases the credibility and reliability of the statement. You know, they did not communicate much before, and it is no coincidence that they were able to come up with such consistent answers based only on those two major events.

Of course, they are not 100% sure that this answer is correct.

After all, in the world of passwords, there is no absolute certainty, only constant attempts and verification. But they decided to take a risk, because if they didn't try, they would never know whether the answer was correct.

Director Wang looked at everyone's determined eyes and nodded. He felt that everyone's ideas were worth a try, and only through practice could the truth be tested.

So, Xiao Li was entrusted with the important task of inputting the string of characters into the pop-up window. Everyone waited with bated breath, and after confirming several times, Xiao Li pressed the keyboard.

However, the result was not what people expected. A red error message box popped up, with the words: "Input error, please enter the correct passcode!" and a neon message below that there were two more chances. Although this result was not unexpected, it still made everyone nervous.

They were just trying it out and were not completely sure about the string of characters. If you ask them what the probability of success is, it is probably less than half. Therefore, when they saw the error message, they were relieved. At least they did not blindly believe the answer, but chose to verify it.

In this way, their idea was proven wrong. As for the reason for the error, it was probably due to the setting of the personal key. Although their speculation seemed reasonable, it was still largely subjective. If they had only one chance, they would never take such a risk. But since they had three chances, they decided to take the first one and try it.

Sometimes, the first mistake is not a bad thing, but it can help them eliminate a possibility. At least now they have realized that their previous thinking was too one-sided, and the real communication code is much more complicated than they imagined.

"It seems that our idea is still wrong. But if it is right, I would find it strange." One person said with a smile, "After all, this is the last firewall. If we can crack it so easily, then they are too stupid."

"That's right. Even if we accidentally guessed the key this time, it doesn't mean they are stupid." Another person added, "Just think about it, can ordinary people know the public key of Japan? Do they have the ability to access the last step? The fact that we can get to this point already shows our strength."

"It's useless to say all this now. Let's think about what the real key is." Xiao Wang frowned. "I'm really confused now. If the previous idea is wrong, then where should we start next?"

"It's very likely that there's something wrong with the personal key." Xiao Zhou said with certainty, "There's no doubt about that. But we can't completely deny our previous speculation. There must be details that we haven't considered."

Everyone fell into deep thought again, but they were not discouraged. Instead, they began to think about other possibilities. At least they were sure of one thing: there were indeed three chances to enter the communication code. They had already used up one chance, so the next two were particularly precious.

Although the first attempt failed, they gained two important pieces of information: one was that their guess about the key was wrong; the other was that they did have three chances to enter the key and had already used one. These two pieces of information were crucial for the next action.

As the mission deadline approached, the atmosphere in the institute became tense again. Everyone seemed to feel an invisible knife hanging over their necks, and the pressure was imaginable. They dared not imagine the consequences of mission failure. Although Director Wang made it clear at the beginning that there would be no serious punishment even if the mission failed, they still felt unprecedented pressure.

This mission is of great significance to them. It is not only an opportunity to challenge themselves, but also an opportunity to prove their strength. They are fully aware of the difficulty of this mission, and they also understand that failure means losing this precious opportunity. Therefore, their desire to complete the mission is stronger than ever.

"What should we do now? Time is running out. Do you have any new ideas?" Xiao Wang asked anxiously. He knew that time was precious and every minute and every second could not be wasted.

"Oh, I don't know either." Xiao Zhou sighed, "The closer it gets to the critical moment, the less inspiration I have. It seems that all the ideas I had before are no longer feasible."

"How can we break through the personal key?" Xiao Li also seemed a little confused. "It seems that our previous methods have reached a dead end."

At this moment, Xiao Zhou suddenly had an idea: "Wait! Didn't we assume that the other party would use the universal language to set the key? But since the other party is Japanese, why is it impossible to set it in Japanese?"

This idea was like a flash of lightning that cut through the fog in everyone's mind. They suddenly realized, yes! Why do we have to assume that the other party will use a universal language? It is entirely possible that the other party will use their native language to set the key!

"That makes sense! If that's the case, then the string of characters we wrote before converted into the basic letters and special symbols of Japanese Mandarin, would it be the correct key?" Xiao Li said excitedly. He quickly wrote down a string of characters consisting of the basic letters and special symbols of Japanese Mandarin on a piece of paper.

If you change the language, the communication code will be completely changed. If you are not proficient in these two languages, it is difficult to imagine that they actually express the same meaning. (End of this chapter)