Knowing who the specific code name refers to is key. With this, these materials have become out-and-out black materials, and the lethality of throwing them out is much more powerful than a gift list of "three festivals and two birthdays". Just as the "unspoken rule" female artist is lace entertainment news, forcing a female artist is a criminal case.

Lin Baiguang believes that it is impossible for Gou Er to have a superhuman memory to remember each character referred to by the code, and most of them should also have a comparison table between the code and the person's name as a memo.

However, Lin Baiguang can think of this problem, and Gou Er naturally thinks about it. The material sorting gradually came to an end, and Sun Xiao still did not find the most valuable roster from the account book. Lin Baiguang's face turned bad: I found a very valuable material, but I couldn't use it, it was too disappointing.

"You don't have to be too disappointed, maybe Gou Er memorized it himself," Mu Min comforted him, "or he carried this book with him." In addition to directly searching for information, you can also use the method of intelligence analysis to find out what the code name refers to. ”

"If you compare the materials, you can generally know where the person is, what he is doing, who the people he is in contact with, and you can guess who it is." Mu Min said and picked up the bribery booklet, "The Lanling Weng mentioned in the zuihou incident in this booklet accepted the money and went to Wu Mingjin Guan to tell the matter, and the matter was done, obviously this person is an acquaintance of Wu Mingjin's side, and the relationship is not ordinary." ”

"I've thought of this too," Lin Baiguang said, "but there are quite a few cronies around Wu Mingjin—it's hard to confirm who it is, and if Wu Ya, the county magistrate, or an important local gentry, comes forward to say it, he won't be embarrassed to dismiss it on the spot." ”

"So we have to look at the materials together, so that we can deduce."

The box was cleared to Zuihou, and he finally found what Lin Baiguang needed: the roster.

When Sun Xiao brought it, Lin Baiguang was overjoyed, with this thing, he was going to catch a lot of bezoar dog treasures in the stomachs of these officials in Qiongzhou Mansion!

When I opened it, it was immediately half cold. It turns out that this is a comparison table, which is not false. Each page of the ledger is divided into two columns, the top of which is the name of the person mentioned, and the name below is a meaningless three-word combination, which, in its weirdness, cannot be a person's name at all.

"Kao, this Gou Er is really a ghost! It's kind of code or something! ”

Mu Min thought that it was about a kind of password, but she didn't know anything about it, and through the computer to check the personnel database, they found the password person: Zhang Xingpei.

Zhang Xingpei had just returned from Canton and was enjoying a vacation -- where he was treated with great hospitality: he played with four or five women in one go. Exhausted. After returning to Lingao, I only thought about self-cultivation. But a phone call summoned him to the General Administration of Political Security.

Zhang Xingpei was uneasy, and thought about it several times if he was sorry for crossing the group, could it be that his "life style" in Guangzhou was reported? It seems that the Political Security Department doesn't care about this kind of lower body thing...... I couldn't think of it after thinking about it, so I had to report to it.

"Look at these things, isn't it a password?" Lin Baiguang got straight to the point.

Zhang Xingpei has a strong interest in cryptography and information science, and he has also studied it himself. Of course, his cryptography is only the most basic entry-level. When he heard that he was engaged in cryptography, he was shocked - almost all of his examples of cryptography were based on the West, and he had no idea what ancient Chinese ciphers were.

"This is very difficult, I don't know anything about ancient Chinese passwords...... Zhang Xingpei hesitated for a moment, "The ancients probably didn't use too complex passwords, but it is not easy to start without knowing the system inside." ”

"The principle should be the same, right?"

"It's hard to say." Zhang Xingpei said, "There are 800 commonly used characters in China, and the Western system is only a few dozen letters -- from a coding point of view, letters are obviously much easier than square characters." ”

The huge difference in writing between China and the West has resulted in completely different concepts of secret transmission of information. Ancient China was more about the use of incisions and hidden words. Zhang Xingpei knows a little about this kind of incision, which is basically passed on by word of mouth, and it is not the same thing as a password at all.

"Hurry up and call Luo Duo and ask him to check the ancient Chinese cipher information!"

"It's the middle of the night, and it's not fair to disturb people in the middle of the night-" Zhang Xingpei was already very dissatisfied with being summoned late at night, and used the topic to play.

"Don't worry, these two bookcases must be in the office of the Social Work Department." Lin Baiguang was obviously not interested in public morality, and he was very familiar with Luo Duo's habits - this person's greatest hobby was to make materials, and the more evenings he went, the better his spirits were.

However, Luo Duo, who was called, could not provide more information -- it was the middle of the night, and he could not go to the computer center of the big library to retrieve it, and according to his limited memory, Zhang Xingpei generally knew that there were two main kinds of military codes in ancient China: one was the "hidden language" similar to the "incision" in the rivers and lakes, but it was no longer clear how this hidden language was used.

There is also the so-called "word test". That is, the various situations that may be encountered in the army are compiled into 40 items, such as: "please bow", "please arrow", "please march", "please send reinforcements", and so on. Then the two parties agreed to use a five-character poem without repeated words as a "word test", and when writing the attributes, the item number of the thing to be reported corresponds to the first few words in the poem, and then add a word next to a certain word in the letter. In this way, even if the letter falls into the hands of the enemy, the other party knows this method, and as long as the bottom book of the item number is not leaked, even if it knows which poem it is, it is useless.

“…… But this method is mainly used for communication, if Gou Er's own use is only to prevent leakage, it is difficult to say whether it is this kind of thing. ”

"Actually, it's just a word for meaning, interesting, interesting." Zhang Xingpei fell into deep thought.

Then Luo Duo began to introduce a kind of cipher invented by Qi Jiguang based on the reverse syncopation - this kind of cipher is already very similar to modern ciphers, but judging from the complexity of what he said, everyone does not think that Gou Er would use such a complex system. In fact, this kind of password was only used in the Qi family army for a very short time, and it was not popularized.

Zhang Xingpei took a pen and copied all the account books, and now one thing is certain: these three words for some reason are the names of the people they refer to, he took this manuscript and looked at it carefully, and after a few minutes, he found a breakthrough.

"I've got a little number." Zhang Xingpei pointed to the words above, "This is a simple substitution, which is the so-called Caesar code." ”

"When did Gou Er know about Caesar?"

"Not that he used the Caesar cipher, of course, but the principle is pretty much the same." Zhang Xingpei explained: The so-called Caesar code is to replace each letter in the plaintext with a different letter or symbol. According to the account, Caesar simply replaced each letter in the plaintext with the letter that followed it in the last three places.

"But it's unlikely." Rodoe immediately suggested the meaning, "How many letters are there?" There are more than 800 commonly used Chinese characters. What is the size of this word list? Gou Er can't always carry a codebook as thick as a codebook. ”

"I don't know." Zhang Xingpei shook his head and said, "But I can probably deduce a few surnames from the probability method." ”

His thinking is very simple, since these are personal names, the first word of the three-word word must be a surname, and since it is a surname, there is a problem of frequency. Just as the most frequently appearing letter in the English alphabet is e, Chinese surnames also appear frequently, and Wang, Zhang, Li, and Chen are the most common surnames. Although Zhang Xingpei doesn't know the ranking order of the number of surnames of Daming, it should be very modern and will not be too different.

"You have to think about the local area." Luo Duo reminded him, "Speaking of Lingao, the surname Fu is the big surname, there are many immigrants from Fujian here, and there are also many surnames Lin. ”

"The difficulty is here," said Zhang Xingpei, who put forward the words of the most common surnames separately, and after looking at it repeatedly, he just couldn't start.

"It's miserable, I don't have any concept of ancient Chinese books," Zhang Xingpei said dejectedly, "Gou Er's use must be an ancient book." And it's very common -- just as Europeans like to use the Bible for code lists. ”

"I think I guessed one." Mu Min suddenly spoke, "This person who went to talk to Wu Mingjin for Gou Er's son Guan must be Wang Zhaomin, his master!" ”

All eyes were on her.

"You see, the first word of the three words corresponding to this Lanling Weng is the few words that Zhang Xingpei found out that appear most frequently: Wang, Zhang, Li, Chen, plus Fu Helin, think about it, the people around Wu Mingjin who are more close to him, or the people who can speak, and those who match these surnames, there is only one Wang Zhaomin!"

"Not bad, yes," Lin Baiguang nodded again and again, and looked at the information again, so he didn't feel too unfamiliar.

"Comparing his bribery book and the social situation of Lingao that we have grasped, we should be able to find out the names of many people -- fortunately, this is just a name, and it is easier to guess."

It's hard to say in other places, but the intelligence department of the basic social situation in Lingao still has a lot of information, and soon, the names of several people were found from the clues.

"But only kao guesses like this, the accuracy is still limited, and once it is out of Lingao, this method will not be accurate." Mu Min said, "I still have to find a list of words." ”

"Let me take my time," Mr. Zhang said, "and now that I know a few words, I can guess." Let's start with the most popular family names, three-character scriptures, and thousand-character texts - these three kinds can be memorized by anyone who has read the book.

[зZcｎ.]