Touch ID, which disappeared for four years, returns to iPhone this year

In September 2013, at the iPhone 5s conference, Apple introduced the Touch ID function based on fingerprint recognition to the world, which opened the trend of fingerprint recognition in the entire smartphone industry.

Four years later, Apple replaced Touch ID with Face ID on the latest iPhone X, and face recognition began to swept the entire industry. Since then, Touch ID disappeared without a trace in the three new generations of iPhone.

But in fact, Touch ID has not been abandoned by Apple.

The latest news shows that Apple may use both Face ID and Touch ID based on-screen fingerprint recognition in the latest iPhone in 2021.

In other words, Touch ID will return in the iPhone.

Touch ID is back: with fingerprint recognition under the screen

Recently, some relatively authoritative sources of information have talked about Touch ID news one after another.

In mid-January 2020, Bloomberg reporter Mark Gurman, who has been following Apple for a long time, reported on Apple’s product plans in the new generation of iPhone; he said that Apple does not intend to make a very radical update to this year’s iPhone, but there is a new one. The function is very critical-the fingerprint reader under the screen.

Mark Gurman said that Apple will add an under-screen fingerprint reader to the new generation of iPhones, so as to give users an option to unlock the iPhone, not just the password and Face ID facial recognition function-this is for users who need to wear masks today. Said it is a gospel.

Of course, even if it is not because of masks, many users still like to use fingerprint recognition because it is very convenient.

Mark Gurman also said that Apple will still retain the facial recognition function in the iPhone while fingerprint recognition returns, because this function is indispensable for facial recognition and some front camera functions.

Taking into account the accuracy of Mark Gurman in previous Apple new products and press conferences, the news that iPhone will embrace Touch ID again is likely to be true.

In fact, in addition to Bloomberg, the Wall Street Journal also confirmed this news in recent reports.

This report was issued on January 29. The report quoted two unnamed former Apple employees as saying that Apple is indeed developing an under-screen fingerprint technology and is considering incorporating Touch ID and Face ID in the same device. technology.

Not only that, the report also quoted a former Apple employee who used to work on Touch ID; the employee said that Apple has chosen to use optical sensors in fingerprints under the screen because optical sensing is more stable than ultrasonic sensing.

The employee also emphasized that no matter what choice Apple makes, the adopted solution will definitely comply with the existing Touch ID technology security standards.

It’s also worth mentioning that, in fact, regarding the under-screen fingerprint recognition scheme, Apple had related schemes as early as 2014. A recent Apple patent showed that users can put their fingers anywhere on the screen without affecting them. Fingerprint recognition.

At present, it is not yet known whether Apple will achieve the effect shown in the patent in fingerprint recognition under the screen.

From Touch ID to Face ID, security is the core

Touch ID and Face ID are both classics of Apple’s innovation to transform the product experience-but they are widely recognized, the premise is Apple’s special emphasis on security.

First look at Touch ID.

In 2013, Apple introduced Touch ID for the first time on iPhone 5s. At the hardware level, there is an area called Secure Enclave to protect passwords and fingerprint data.

Not only that, Touch ID uses “hardware lock” technology, which means that the Touch ID sensor in one device cannot be transferred to another device.

It can be seen that from the very beginning, Apple paid great attention to security issues.

However, in the early days after the release of Touch ID, since the API was not open, Touch ID was only used to unlock the screen; it was not until the release of the iOS 8 operating system in September 2014 that Touch ID was opened to third-party applications, which means that various Three-party applications can be used without entering a password.

But Apple emphasized that Touch ID and fingerprint information will not be read by “third parties”.

At the application scenario level, based on the high security of Touch ID, Apple also combined Apple Pay and Touch ID in iOS 8 released in 2014 to realize the development of Touch ID in payment scenarios, the so-called fingerprint payment-since then , Alipay and WeChat have also implemented support for fingerprint payment on the iPhone.

It is worth mentioning that Apple later launched the Apple Pay web payment technology based on Apple Pay. When shopping on the computer web page, users do not need to enter the bill, delivery address and contact details, but directly Cross-device authentication can be achieved through Touch ID on the mobile phone.

Of course, Apple also equipped Touch ID on the later Mac devices-even in November 2020 Apple’s latest M1 chip-based MacBook Air/Pro, Touch ID is not absent.

However, compared with Touch ID, Face ID is more secure.

In 2017, Apple introduced Face ID on the iPhone X. It uses the latest original deep camera system and a number of advanced technologies to accurately map the geometric structure of the user’s face, thereby providing a safe and intuitive authentication method.

In terms of security, Apple said that the probability of Touch ID being randomly cracked is 1 in 50000, and that of Face ID is one in a million.

Not only that, Face ID also uses the Neural biological engine in the A11 processor to learn and improve algorithms through neural network technology. For example, Face ID will update the internally stored facial recognition data as users use it to make the recognition benchmark Basically realize synchronization with the user’s own facial changes, etc., which also helps to enhance its security.

Touch ID is back, but the Home button will eventually become history

Since 2018, Face ID has become the only option for biometrics in the new iPhone.

However, it turns out that although Face ID is excellent in security, many users still love Touch ID fingerprint recognition-and in the context of the outbreak of the 2020 epidemic, Face ID also appears when users wear masks. Many inconveniences make the convenience of Touch ID more prominent.

In this case, the combination of Touch ID and Face ID may be a solution that takes into account both security and convenience.

Interestingly, in the Android camp, some flagship models have already adopted a combination of fingerprint recognition + face recognition, such as Huawei Mate 30 Pro, but the effect is not very good. I don’t know if the iPhone is at the same time. How about the experience with Touch ID and Face ID.

But one thing is certain:

Even if Touch ID really returns, under the premise that full screen has become a major trend, the Home button on the iPhone is destined to be indefinite.

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