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Gionee When releasing its annual flagship mobile phone M2017, it mentioned a "live fingerprint" recognition technology that sounds unsightly. This technology has a high threshold and is rarely used in mobile phones. This mobile phone is also one of the only three mobile phones in China that can use "live fingerprints".
has been used to fingerprint unlocking for so long. If you are allowed to return to the era of unlocking with digital or graphic passwords, you will definitely feel that this method is really anti-human. Indeed, the advantages of touch interactive experience are both convenient and fast. Using it to unlock mobile phones and secure payment has become an extremely high-frequency application.
Not long ago, when the veteran mobile phone manufacturer Gionee released its annual flagship mobile phone M2017, it mentioned a "live fingerprint" recognition technology that sounds unsightly. This technology has a high threshold and is rarely used in mobile phones. This phone is also one of the only three mobile phones in China that can use "live fingerprints".
You may have heard of what fingerprint recognition is, and even your phone has this function. But do you know what "living fingerprint" is? To understand the story, we still have to start with "fingerprint recognition".
Back three years ago, fingerprint recognition was only a selling point that a few flagship phones at that time (now they are "old phones") relied on. Unconsciously, this security encryption technology has popularized most smartphones at an unprecedented speed. Even the fiercely competitive thousand-yuan phone camp has begun to use the fingerprint unlocking function as one of the basic functions of the mobile phone.
With the evolution of technology, fingerprint recognition function has developed rapidly. At the same time, people are no longer satisfied with this ordinary fingerprint recognition technology that has discovered vulnerabilities over time - why do you say so?
We can first briefly understand the principle of fingerprint recognition.
Popular Science: General fingerprint recognition
According to Wikipedia data, fingerprints are traces generated by unevenness on the skin of fingers, which contain a large amount of biological information that is difficult to copy, which is equivalent to everyone's unique ID, which makes it possible to be an encryption method.
, and fingerprint features can usually be divided into two types: overall features and local features.
The overall feature is that our human eye can easily observe it, including basic pattern, core points, lines, etc.; and local features, as the name suggests, are smaller parts, that is, nodes with certain characteristics on the fingerprint.
As the saying goes, "There are no two identical leaves in the world." In fact, this sentence also applies to fingerprints. Two fingerprints can easily produce the same overall characteristics, but their local characteristics cannot be exactly the same. When verifying fingerprints, we first judge the overall characteristics, and then further match details to identify the user's identity.
Ordinary fingerprint recognition is too dangerous
A while ago, Japanese media reported that taking photos of "scissors" and even photos taken within three meters may leak fingerprint information. The loopholes in fingerprint recognition have been put in front of people's real life.
In fact, as early as last year's MWC World Mobile Conference, a reporter from the Wall Street Journal personally conducted an experiment of "imitation fingerprints". He first pressed the fingerprint on a soft plastic mold to form a fingerprint mold, and then used fingerprint film to unlock and press the Home button of the iPhone, and finally he actually realized the unlocking!
The same case is not only seen on iPhones. It is reported that Kai Cao and Anil K. Jain from the School of Computer Science and Engineering at Michigan State University found that using a special ink to print out the fingerprints after taking photos, this simple and crude method actually cracks mobile phones such as Huawei Honor.
fingerprint recognition technology is the most solid security line in the eyes of many mobile phone manufacturers, but the test results are really shocking. As long as the user's fingerprint is extracted, "imitation fingerprints" can be made, which poses an invaluable threat to mobile phone privacy and payment security.
and "live fingerprint" recognition function like Gionee M2017, its characteristics just solve this problem.
Why is it said that "live fingerprint" is safer
Gionee M2017 adopted live fingerprint recognition solution developed by Shenzhen Huiding Technology. As the world's latest and only capacitive mobile terminal fingerprint recognition solution that integrates optical sensors, this technology also won the "CES Embedded Technology Global Innovation Gold Award" at the CES Conference not long ago.
"live fingerprint" adopted by Gionee M2017 is essentially the result of further evolution based on the original fingerprint recognition technology. The principle is to integrate capacitive fingerprint sensors and optical detection sensors into a silicon sensor, so as to verify the user's identity through unique biometrics such as fingerprints, finger skin color and heart rate signal.
In the entire fingerprint recognition process, "live" plays a key role, because only living bodies can detect human heart rate and blood, and any other fake fingerprints that attempt to imitate are invalid. This undoubtedly gives priority to avoid security vulnerabilities in conventional fingerprint recognition such as fingerprint molds, improving the security of personal information of device holders.
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