Moderator: Recently, I came across a message about a new service called "lock picking." I’m not sure if you’ve heard of it.
Expert: I haven’t heard of it. But I have heard of “lock inquiry.â€
Moderator: The term "lock picking" refers to the ability to open any kind of door—whether it’s a security door, a combination lock, or even a safe—in just one minute.
Expert: In that case, we haven’t compromised public safety.
Moderator: It’s said that a thief hired someone from this "lock picking" service to help break into a house. As a result, both were arrested by the police. Still, it shows that today’s locks may be effective against honest people but not so much against criminals.
Expert: That’s true. Locks have existed since the rise of private property, and they've evolved over thousands of years. Archaeologists discovered wooden locks at the Yangshao culture site around 3000 BC. By 25 AD, iron three-spring locks were in use, and they remained popular for over a thousand years. In 1848, an American named Yale invented the pin-tumbler lock, also known as the Yale lock. It used multiple pins to create a code, and it was considered the most secure lock at the time. It is still widely used today.
Moderator: It seems like traditional locks are no longer sufficient. Otherwise, these "lock pickers" would be out of work.
Expert: Actually, since the 1970s, locks have advanced significantly. There are now magnetic locks, remote-controlled locks, and biometric systems using fingerprints, voice, and even eye scans. Traditional mechanical locks have high security, but with modern technology, you can simply press your finger on a sensor, and your door will open automatically. This convenience could become common in the near future. Biometric recognition is moving from secret applications into everyday life.
Moderator: As shown in the film, biometric technology identifies individuals based on unique physical or behavioral traits. Once these features are stored in a computer, it can verify identity by comparing the data. Since each person's biometric traits are unique, this technology is tailored for individual identification.
Moderator: I read a report stating that mechanical locks had limitations in the past, such as small key codes, exposed mechanisms, and vulnerable areas like keyholes. Can biometric technology avoid these issues?
Expert: Let me explain. There's a simulated door here. This is the standard front door. This is the electric lock controlling the door, and this is the outdoor sensor. This is the indoor control unit. Even if the outdoor part is damaged, it won’t affect the indoor system, so the door won’t open. This design helps prevent unauthorized access.
Moderator: How secure is it?
Expert: The security of traditional locks depends on the key code. The best mechanical locks offer about 1 in 1,000 chances of being picked, while fingerprint locks can reach up to 1 in 1 million. That’s a huge improvement.
Moderator: What about the risk of fake fingerprints, like copied prints?
Expert: It’s highly unlikely. No two people have identical fingerprints, and even our own fingers have different patterns. Moreover, the texture of fingerprints remains consistent throughout life. Modern fingerprint sensors can detect more than just the surface—some can sense body temperature and blood flow, capturing detailed images from the skin’s inner layer. So, the chance of fraud is very low.
The working mechanism of a fingerprint lock involves three parts: fingerprint scanning, feature extraction, and the electric lock. When you place your finger on the scanner, optical technology captures the image through a prism. The image is then processed by the computer, extracting unique features such as ridge endings and bifurcations. These points are compared to the pre-stored data, and if they match, the lock opens. This eliminates the need for keys and reduces the risk of losing them or being locked out. In sensitive areas like banks or military facilities, it enhances security and prevents internal theft. It can also be used in e-commerce, allowing secure online transactions with a simple touch.
Moderator: After watching this, I feel that the future is closer than ever. Things once considered science fiction are now becoming reality.
Expert: Technology is advancing rapidly. Initially, fingerprint recognition required powerful computers, but with the development of microprocessors, it has now become accessible to the general public.
Moderator: In the future, will smart card technologies like IC cards and bank cards be replaced by fingerprint identification?
Expert: Biometric systems like fingerprint recognition are seen as the next step after smart cards. They are more secure and efficient. In the future, we’ll see fingerprint-based systems everywhere—whether shopping, withdrawing money, or accessing digital services. It will bring us a safer and more convenient way of life.
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