I shocked the world by participating in the anti-crime program

Chapter 30 Accepting the Bronze Dragon Bird
  Second viewing group.

The host saw Zhou Nan narrowly evading searches time and time again, and actually came to Room 8 without triggering the alarm.

She really saw a glimmer of hope that this S-level mission could be conquered.

But after seeing that the copper running dragon bird was kept in a safe with triple verification.

The host felt despair again.

Then she looked at the expert on the side: "Passwords."

"Because player Chen Cohen has taken over the security system of the Dongdu Museum, it is easy to do."

"As for fingerprints, although I don't understand them, there should be many ways to copy them."

"But things like irises should be completely impossible to copy, right?"

Professor Zhao Yuehua nodded: "There are approximately more than two hundred quantitative feature points in an iris of the human body."

"And this is an organ tissue inside the human body, located behind the cornea of ​​the eye."

"If a person wants to change the organ tissue of the iris, they have to risk blindness and undergo surgery."

"As far as I know, iris recognition is the most secure biometric technology after DNA."

"As for copying, I think it's difficult, right?"

"Is there any technology that can replicate an identical eyeball?"

After Zhao Yuehua finished speaking.

Many of the guests present chuckled.

indeed.

Copying an identical eyeball sounds too ridiculous.

That's when.

A sudden sound sounded at the scene.

Hu Yaochuan gave a solution to the problem from another perspective: "From a biological perspective, it is indeed very complicated to crack iris recognition."

"And iris recognition doesn't require contact like fingerprints."

“So there won’t be any trace left on the safe.”

"It looks like a 'watertight' validation."

When Hu Yaochuan said this.

The guests around him didn't know what he wanted to express.

But Hu Yao's next words directly refreshed their understanding: "But among the pickpockets I caught, there were actually people who cracked the iris safe."

"And it's definitely not an exception."

This immediately aroused the curiosity of the host: "Teacher Hu, what method did they use?"

Hu Yaochuan didn't give in. "It only needs to be within ten meters."

"Using a DSLR telephoto lens, combined with the infrared capture function, to focus on shooting at the speed of light."

"You can get a person's iris information."

"And now that many mobile phones have extremely high pixels, some selfies posted on social media may also allow others to obtain iris information."

"Some hackers can also turn on the front camera of your phone while chatting with you. This way they can also obtain iris information."

After Hu Yaochuan finished speaking.

Zhao Yuehua immediately raised a question: "But many iris recognition systems have 'living body detection', right?"

"Just having a picture of the iris doesn't solve this verification, right?"

Hu Yaochuan nodded and said, "This question from Teacher Zhao is particularly good."

"When I was listening to the pickpocket tell me these things, I also had the same question."

"I wonder if those people are bragging."

"But the pickpocket told me that he didn't understand the specific principles."

"But you only need to use a black and white laser printer to copy the iris pattern."

"Those 'living body detection' can all be cracked."

"For example, micro-movement of the eyeballs and pupil zooming. These only require rhythmic and skillful shaking of the printed iris, and extremely smooth movement of the printed iris closer and further away, which can directly deceive the 'living body detection' and crack the iris verification."

When Hu Yaochuan said these words.

Everyone at the scene was shocked again.

These words clearly broke their cognition.

It turns out that iris verification also has such loopholes. The host looked at Professor Zhu Weizhi aside, hoping that the other party could explain the principle: "Teacher Zhu, it depends on you."

Zhu Weizhi thought for a while and then replied: "If the iris verification is manually verified and compared by relevant professionals."

"Then there's absolutely nothing to say about safety."

"Maybe as Professor Zhao Yuehua said, safety is second only to DNA."

"But a machine is a machine after all."

"The vast majority of iris recognition uses infrared light emitted by the device's LED light to capture the iris pattern, and then compares it with the database."

"As far as I know, there are many chemicals, such as toner, that absorb infrared rays better."

"Therefore, it is not impossible to deceive mechanical recognition."

After listening to the discussion among the experts, the audience immediately felt that there was no hope of cracking the safe.

"How do you think Brother Zhou will use to crack the iris verification? Will he really take a photo in front of Teacher Li Gao?"

"Didn't Brother Chen hack into the camera? Can I use the camera to take pictures?"

"How is it possible? The clarity is simply not enough."

"Have you all thought about irises? How to get fingerprints is still a problem now!"

"Actually, I feel that the kind of iris safe that Teacher Hu mentioned should be for home use. I don't think someone like that high-end one will be deceived by printed irises."

"What do you think Brother Zhou is doing?"

"."

at this time.

Chen Cohen had already found Li Gao's information on a computer connected to the intranet of the Dongdu Museum.

Zhou Nan also took action.

He held a mobile phone in one hand and a razor blade in the other, lying on the ground and carving on a small wooden board.

At first, the audience had no idea what Zhou Nan was doing.

But ten seconds later.

There is a pattern on the wooden board.

This made some viewers couldn't help but start to make bold guesses. Could this be the fingerprint of Teacher Li Gao's thumb? !

But are the fingerprint patterns carved on wood with a blade really accurate? !

next second.

Those audience questions were answered.

Zhou Nan took out a silicone-like object from his crossbody bag, pressed it with his thumb on the wooden board, and then placed the ball of silicone in the fingerprint verification area of ​​the safe.

One click.

With a beep, the fingerprint verification was passed.

As for iris verification.

Zhou Nanxian chose the method that Hu Yaochuan said in the second group of spectators.

Those hands were like a human printer. They took the picture on the phone and copied it on the paper, and then added chemical materials that could absorb infrared rays in some places.

Many viewers were dumbfounded again.

"Here, did I miss something? How could I finish the painting in the blink of an eye?!"

"Are you sure there are a lot of pictures printed in advance?"

"Definitely not. Brother Chen found these things after he hacked into the Dongdu Museum system."

"This reminds me of a man who draws dollars with his bare hands!"

"Brother Zhou's painting skills, those professors and experts will have to kowtow when they come here!"

"."

Zhou Nan used a blade to cut off the excess part, and then used tricks to try to deceive the safe's "living body detection".

After he heard a "di" sound.

The safe door just opened.

After Zhou Nan saw the authentic "Bronze Running Dragon Bird" placed inside, a trace of disappointment flashed in his eyes.

In his original plan.

I really prepared a plan to rub the "eyeballs" with my hands.

(End of this chapter)