To be honest, Legend did not believe that the old man in front of him could turn Lin Ge into himself. But the old man gestured with his fingers on his face a few times, nodded frequently, and said something that Legend did not understand but felt was very professional.
Nowadays, advanced facial recognition systems and fingerprint recognition systems were difficult to hack.
But Jiuqian Xiu had already mentioned knowledge about facial contours, how to deceive the facial recognition system, and so on in his remarks. Jiuqian Xiu spoke clearly and logically, which made Legend feel uncertain. After all, this guy was known as the most powerful god in the field of disguise.
After Jiuqian Xiu's calculations, the materials needed were also very clear. Gu Qiya immediately ordered Fat Head and others to prepare everything Jiuqian Xiu needed.
Although Legend was flustered, he still did not believe that Jiuqian Xiu could copy his fingerprints.
When Jiuqian Xiu took out Legend's finger and looked at it, Legend couldn't help but say, "This is impossible. You don't have high-tech things. How can you copy my fingerprints …"
One must know that fingerprints were a form of proof that human activities were never wrong. It was said that a four-month-old baby's skin already had lines.
In fact, fingerprints began to be produced when the embryo was four months old, and began to form around six months old.
After the baby was born, the lines would become thicker and the area would increase as the baby grew older. But the shape, structure, distribution range, and overall layout of the pattern were basically unchanged for life and had a high degree of stability.
This was why various criminal investigation films could solve cases by relying on the fingerprints left by the suspect. Fingerprints could not escape.
Human physiological characteristics included fingerprints, face shape, iris, hand shape, voice, and so on. Scientists concluded through comparison and research that it was far easier, more stable, and safer to authenticate identity through fingerprints than other physiological characteristics.
Although cloning technology had reached a considerable level these days, legend had it that cloned people might not have the same fingerprints because each fingerprint had several unique and measurable characteristics. These characteristics ensured the uniqueness of the fingerprint.
This also showed that two fingerprints might have the same overall characteristics, but their detailed characteristics could not be exactly the same.
This was why Legend did not believe in Jiuqian Xiu.
"Fingerprints are indeed the most difficult thing to replicate." Jiuqian Xiu smiled slightly. When it came to this, he was a professional. He knew more than Legend, "Every fingerprint has several unique and measurable feature points, and each feature point has about five to seven features. Our ten fingers produce at least four thousand and nine hundred independently measurable features."
The Legend was stunned, this guy's words were too professional. Just like before, he was also confused, but his words were quite professional.
"Because the fingerprint lines are not continuous, smooth, and straight. Instead, there are often interruptions, bifurcations, or turns. These interruptions, bifurcations, and turns are called feature points. It is these characteristic points that provide the confirmation information of fingerprint uniqueness. "Jiuqian Xiu continued.
Xu Yun and the others were also quite surprised. Jiuqian Xiu's expertise in "copying others" had far exceeded their expectations.
Jiuqian Xiu hadn't finished yet, "Among them, the most typical characteristic points are the end point and the branch point. In addition, there are also branch points, isolated points, ring points, short lines, and so on. The wide variety of fingerprints is enough to show that fingerprint identification is a more reliable way of identification. You know, twins that can't be distinguished by DNA identification can be distinguished by fingerprints. "
The Legend said in surprise, "That … that's so difficult. How can you replicate it?"
"I never studied fingerprint replication a long time ago, but then I saw a news article, so I had a sudden idea in this regard." Jiuqian Xiu said, "It is said that a school in Australia installed a set of fingerprint attendance machines to urge everyone to attend class in order to prevent students from skipping class. But there are policies and countermeasures. Some students came up with a way to fake fingerprints with soft candy in an attempt to deceive this high-tech system. "
It sounded quite reasonable. If a fingerprint was pressed on a soft candy, it could get an opposite fingerprint. Then, two soft candies were pressed repeatedly. It seemed that a fingerprint could be replicated.
But the problem was that the lines on a piece of soft candy were already very unclear. It was estimated that it would be difficult to deceive the fingerprint machine the second time.
In fact, this was the case. This way of forging fingerprints was very unreliable. But it also showed that it was not impossible to duplicate fingerprints. The imaginative students solved this matter.
"The soft candy is unreliable, but the gel can be used." Jiuqian Xiu smiled.
The gel was one of the ingredients in the soft candy.
"You … are you being whimsical?" The Legend shook his head in disbelief.
"I used the gel to successfully make a fake finger that could deceive the fingerprint machine. Although the success rate was not 100%, it reached more than 70%." Jiuqian Xiu said, "I only need to make three fake fingers, and I can guarantee that one of them will be successful."
The Legend shook his head, "Impossible … it's impossible at all. This is just your theory!"
Gu Qiya was also surprised, "Uncle Jiu, how do you do this?"
"Use forensic medicine to extract fingerprints, then take pictures with a high-resolution camera, transmit them to the computer for left and right, reverse and other processing, and then make a plate for the fake finger." Jiuqian Xiu was not just saying. He had done it before, so he was very familiar with it, "The precision of the template directly affects the degree of fidelity of the fingerprint. Use the method similar to a printed circuit board, so that the sample can have subtle bumps to meet the requirements of the mold. Finally, the gel can be spread on the template. "
Lin Ge exclaimed, "You're amazing, aren't you? That's too amazing!"
"Of course, this method can't deal with those powerful fingerprint readers that can identify transparency, softness, charge carrying, and bubble level." Jiuqian Xiu said, "So I added some craftsmanship on top of it. I can cover your fingers with this made gel perfectly. Even those fingerprint readers that can identify transparency, softness, hardness, charge carrying, and the level of the drum can be fooled."
Lin Ge gave a thumbs up in admiration.
Xu Yun was also amazed. Perhaps only he, the first person in disguise, could do this.
However, it was not a good thing that this thing could be copied. Sooner or later, this thing would be popularized in the world. If this technology could be mastered and fingerprints could be easily copied, everyone would have to wear gloves when they went out.
Once the leaked fingerprint information was used by criminals, it would bring great harm to individuals and society. The uniqueness and uniqueness of fingerprints made them extremely important personal information, which could also be called personal privacy.
If the fingerprint information was leaked or copied and used, the consequences would be unimaginable.
What was even more terrible was that compared with digital password recognition technology, fingerprint recognition had the biggest disadvantage. That was, once the biometric characteristics of the person involved were stolen or imitated, it was difficult to change their own characteristics like changing the password.
So, if this thing was stolen, hehe, it would not be as simple as finding the password. The digital password could be found and changed. How could the fingerprint be changed?
Legend was a little confused. He regretted that he did not set an iris password. That was because someone told him that the iris password was not safe. It was said that there was technology that could produce a replica artificial iris in ten minutes.
The theory behind this was very simple. The data generated when scanning the iris could be used to create a unique iris code by studying the pattern, texture, size, and other information. Once the information was output, after a hundred to two hundred iterations, an artificial iris could be easily created.
Therefore, Legend believed in complex and unique "fingerprints," but he did not expect that the old man in front of him could easily copy his fingerprints!
If he had known, he would have set all kinds of biometric passwords! In this way, the passwords of his various bank accounts and company accounts could be considered safe.
In fact, this was the case now. Only by using multimode biometric recognition technology could the problems of all single-mode biometric recognition systems be solved.
When Fat Head bought back what he needed, Jiuqian Xiu no longer delayed and started immediately! This was a pure manual work that consumed quite a lot of time.
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