Vol 2 Chapter 281: Printed circuit board and magic pattern crack

The same night.
Laboratory, main laboratory.
Richard sat in front of the experiment table and was working seriously.
Many candles are lit, releasing a dim yellow light, and the reflections on multiple mirrors make a small specific area on the desktop, very bright, Richard is in this area, watching the papyrus scrolls copied a few days ago 3. The magic patterns of the three magic pattern spell props obtained from the auction.
Each transcribed magic pattern is very complex, and it looks dense and makes people dizzy. Li Cha's eyes are close, he studies the direction of the magic lines, and thinks about how to crack the magic lines, so as to absorb, use, and improve.
Generally speaking, in the current world, it is very difficult to crack the magic pattern, let alone a systematic cracking method.
But Richard will not limit his thinking to the present moment, but will contact some relevant knowledge on modern earth.
In Richard's view, the magic patterns of the current world are very similar to the circuits on modern earth, and have many similarities. Even if it can not be completely equated, some knowledge on the circuit can be used.
On the modern earth, the development of circuits has always been accompanied by encryption and cracking, just like spears and shields-some precision instrument circuit designers will try their best to encrypt circuits to prevent plagiarism by competitors, and competitors It will work hard to get what you want.
In the development of the circuit, the circuit has been continuously miniaturized, and the large circuit has slowly changed into a mini circuit. The wiring between the electronic parts is printed on the insulating board by means of printed metal wires and becomes a printed circuit board, namely Printed Circuit Board, or PCB for short.
For PCB, there are many encryption methods, generally there are sealant, paint, buried holes, blind holes, etc.
The cracking of the PCB's heavy encryption method is called copy board, and the methods are endless and diverse. In fact, as far as technology is concerned, cracking the PCB is not a problem at all, but a question of worth.
In other words, there is no unbreakable PCB, it just depends on how much is invested. If you invest too much and don't pay for it, then it is better to crack it with another valuable PCB.
From the perspective of circuit cracking on modern earth, looking at the current magic pattern of the wizarding world, everything becomes simple.
Although the texture of the magic pattern is dense and cumbersome, it is still incomparable to the complex PCB on modern earth. If the circuit difficulty of the modern earth is smartphone level, then the magic pattern of the current world is also the shake stick or big brother level.
The encryption method is very basic, such as intentionally adding or hiding a certain line, or hiding the real core, functioning magic patterns in many wrong and meaningless magic patterns.
This is enough to deal with ordinary plagiarism. Even if it cannot be completely eliminated, it can make the cost of most plagiarists extremely high.
For example, it was originally a simple magic pattern that created a paralyzed arc. The pattern master expanded it to a lot of useless pattern lines. A large part of these expanded useless pattern lines was impossible for the pattern master himself to repeat. of.
In this way, the plagiarists need to work hard to imitate the magic pattern successfully. In the process, as long as a line of the core magic pattern is accidentally portrayed, the entire pattern will fail, enough to collapse.
However, the same encryption method is not enough for Richard.
Under the light, Li Cha looked at the lines on the scroll and his eyes flashed. Put your finger up, slide slowly, divide the area, calculate the combination of some moire lines, and quickly conceived the specific method of the test.
At the next moment, remove the white jade piece from the iron ring of space, and follow the line on the scroll of the papyrus to quickly depict it.
"Shusha..."
The white jade pieces are processed in less time, which has a lot less texture than the original magic pattern.
The input mana that Richard tried, the white jade piece shook, and the "click" shattered.
"Um... It seems that the magic lines in the A2 and D4 areas can be eliminated."
After a failure, Li Cha did not feel discouraged. He took out new white jade pieces and portrayed them again, portraying a different magic pattern on it.
Holding this second piece of white jade, Li Cha tried to input mana into it, and then it cracked again with a click.
"Magic patterns in areas B3 and C5 can also be excluded."
Richard said that he took out the third piece of white jade and processed, portrayed and tested it again.
With a click, it broke for the third time.
Then the fourth, fifth, sixth...
The white jade pieces were broken one after another. When Richard took out the eleventh white jade piece, he portrayed the cumbersome magic lines, raised his eyebrows, and looked dignified.
"Breathe--"
Li Cha took a deep breath and said to herself: "If the previous speculation is not wrong, then this time, it should be successful."
When the words fell, Li Cha grabbed the white jade piece and injected mana into it.
"Buzz!"
The white jade piece slowly vibrated, and the next moment "cracked", an orange arc of several centimeters in length was born on the surface, which was the real effect of the "paralyzed ring" of the magic pattern spell prop.
The input mana that Richard continued to read, let the arc continue to produce, which lasted for more than half a minute, and then the "white click" broke the white jade piece.
Richard knew that this was caused by the endurance of Baiyu tablets reaching the limit. If you choose not to use white jade pieces, but choose the remaining high-quality materials to describe the magic lines, as long as the mana is sufficient, the duration of the arc will be almost permanent.
In other words, if you engrave the magic pattern on a blank spell item, you can make a qualified magic pattern spell item with paralysis effect-the paralysis ring magic pattern has been successfully cracked!
Successfully cracked!
Li Cha blinked and recorded the cracked magic pattern on a new papyrus scroll. Compared with the original version, he found that it was reduced by almost half. In other words, in order to encrypt the magic pattern, the magic pattern maker who made the props almost added almost half of the useless patterns, which was almost frustrating.
"call--"
Richard sighed, put away the new papyrus scrolls, put the tabletop in order, and stretched his body.
At this time, he was not prepared to break all the three spell props obtained at the auction, which was too much effort and it was better to change his mind.
Thinking about it this way, Richard took out seven books—from the suitcase of the dead young man, seven books from the Black Spirit Empire.
These seven books, he had already studied briefly before, and found that only two of them are the same as the book-the last page ~ EbookFREE.me ~ has the symbol of the Black Spirit Empire. The numbers on the logo are 11 and 34, respectively.
From this, he inferred two things.
First, not every book that has been handed down from the Black Spirit Empire is related to secrets, and it is likely that it is only a small part.
Second, even if only a few of the books are related to secrets, the number will not be less than 34, or even more. But if you want to collect all, or gather most of them to study, I'm afraid it will not be simple.
Comparing these two things, what makes him more challenging is that until now, he has no idea what the clues hidden in the books are related to the secrets-the content in the books is really simple content, except otherwise There is nothing unrelated.
He considered the situation of hiding text, but it was nothing more than fire, water immersion, or smearing with special reagents. It was just a simple chemical reaction:
Write with vinegar, the vinegar liquid enters the fiber, when the paper is heated, acetic acid accelerates the carbonization of the fiber, so that the writing turns yellow;
Write in blue copper sulfate pentahydrate solution. After drying, the copper sulfate pentahydrate becomes colorless anhydrous copper sulfate, and the writing disappears. After immersion in water, the anhydrous copper sulfate is restored to copper sulfate pentahydrate, and the writing shows;
The reaction of starch and iodine solution turns blue, phenolphthalein turns purple when meeting alkali solution, and methyl orange turns red when meeting strong acid.
He has tested all of these and has no effect.
In fact, think about it seriously. Books are hundreds of years old, and even if there are any chemical reagents, they have evaporated. If someone really wants to leave some clues, as long as they are not stupid, they will not use this method, if they are stupid, then it is... don't understand this method at all.
Anyway, clues about secrets should be hidden.
So where is it hiding?