"Apple Software Engineering Craig Federighi has shared a lot of Face ID identification technology. Now, Apple shared a detailed Face ID security white paper, let us know the advanced technology and security of the Face ID.
This white paper explains how the Face ID works, working under what conditions, and how to set, including some operations that can cause the Face ID to be disabled. To use a Face ID, you must set your password on your iPhone. In the following cases, you must enter your password to complete additional security verification:
The device just turns on or restarts.
The equipment has not been unlocked for more than 48 hours.
A password is not used in the past six days to unlock the device, and the Face ID is not unlocked over the past 4 hours.
The device receives the distal lock command.
Before five times fail to fail the face.
Press and hold any volume button with the side button for 2 seconds to start shutdown / SOS emergency services.
Here is a complete technical introduction.
Most of our domestic digital records are stored in the iPhone and protect the importance of these information. Just like the Touch ID completely changed the authentication method with fingerprint recognition function, the face recognition function of the Face ID is another revolutionary innovation in the authentication method. Face IDs are equipped with the most advanced TruedTH camera system to accurately correspond to your face's composition characteristics, providing intuitive and secure authentication methods.
Simply a glimpse, Face ID can be safely unlocked your iPhone X. You can authorize this feature to purchase transactions on the iTunes Store, App Store, iBooks Store, as well as the payment of Apple Pay. Developers can also allow you to log in to APPs with Face IDs. The APP that has been supported with the Touch ID automatically supports the Face ID.
Advanced technology
The Face ID is achieved, relying on the most advanced hardware and software technology we have also developed. The Truedepth camera projected more than 30,000 invisible points and analyzed to capture accurate face information, and then make the deep survey of the face while capturing the infrared image of the face. The neural network engine of the A11 Bionic chip (protected inside the Secure Enclave) is followed, and the depth test chart and infrared image are converted to mathematical characterization, and this characterization is compared with the registered face data.
The Face ID will automatically adjust to identify changes in appearance, such as makeup or bearded. If your appearance has a more significant change (for example, the face of the bearded bearded), the Face ID will be allowed to confirm your identity before updating the face information. Face IDs can also wear a hacle, scarf, glasses, contact lenses, and various sunglasses in response to user glasses. In addition, both indoors, outdoor or even completely dark environments, can also be used normally.
To start using the Face ID, you must first register your face. You can register your face during the initial setting program, or then go to the "Settings"> Face ID and Password "registration. To unlock your iPhone X using a face ID, you only need to simply a glimpse of the iPhone X. You can place iPhone X in the surface of the item, or in a natural way, as long as the TrueDepth camera can see your face, the Face ID can work. The travele of the Truedepth camera is similar to the field of view when you take photos with a front camera or a Facetime call. The Face ID is the best in the device and the face is within one arm distance (20-50 cm) from the face.
The TruedEpth camera is enabled in intelligent ways, such as picking up the device to wake up the iPhone X, click on the wake-up screen, or the notification can also wake up the screen. When unlocking iPhone X each time, the TrueDepth camera will accurately capture your identity with the infrared image. The acquisition of the information will be compared with the stored mathematical characterization for certification.
Safeguard
In order to protect the information on the device, we attach great importance to safety. In addition to the Touch ID, we also adopt important information protection measures with the same rigorous attitude. Face ID uses the TrueDepth camera to provide a secure authentication solution. Face ID information (including mathematical characterization of face) will be given to the safest protection with only Secure Enclave.
If you pick a person in the population, look at your iPhone X and use the Face ID to unlock the chance of approximately one million (compared to the Touch ID is one hundredtymn). Face ID provides additional protection, only allows your comparison failure five times, then you must enter your password. If a twin or a similar brother sister, as well as children under the age of 13 (due to its unique facial features may have not yet fully developed), the above statistical probability will vary. If you have doubts about this part, it is recommended that you use your password to perform authentication.
Face IDs are compared for depth test information, while printed or 2D digital photos do not include these information. This design uses a complex anti-fraud neural network to prevent people from using masks or other tricks. The FACE ID can even perceive the user's gaze. It recognizes whether your eyes open and look at the equipment. In this way, if someone wants to unlock your iPhone if you don't know (for example, when you sleep), it will be more difficult.
To use a Face ID, you must first set your password on your iPhone. In the following cases, you must enter a password for additional security verification:
The device just turns on or restarts.
The equipment has not been unlocked for more than 48 hours.
A password is not used in the past six days to unlock the device, and the Face ID is not unlocked over the past 4 hours.
The device receives the distal lock command.
Behind the face fails five times.
Press and hold any volume button with the side button for 2 seconds to start shutdown / SOS emergency services.
If your device is lost or stolen, you can use the "Lost Mode" feature in "Looking for My iPhone" to avoid Face IDs to be unlocked by the device.
Privacy
Apple attaches great importance to user privacy. Face ID information (including mathematical characterization of faces) is to provide protection through Secure Enclave. When you improve the experience (including successful certification) through the Face ID, the system will adjust and update the relevant information. When the Face ID detects a proximity comparison item, the system will update this information when the user still enters the password to unlock the device.
Face ID information does not leave your device, and will never back up to iCloud or any elsewhere. This information will only be transmitted from your device when you want to provide support to Applecare to seek support. Even in this case, the information will not be automatically transferred to the apple; before transmitting the diagnostic information, you can check and approve the data.
If you choose to register your Face ID, you can control your usage, or stop this feature at any time. For example, if you don't want to use the Face ID to unlock the iPhone, turn on "Set"> Face ID and Password> Use Face ID, and then deactivate "Unlock iPhone". To deactivate the FACE ID, turn on "Set"> Face ID and Password, then click "Reset Face ID". The above execution actions will delete Face ID data from your device, including mathematical characterization of your face. If you choose to use "Looking for My iPhone" or clear all the contents and settings to clear or reset your device, all Face ID information will be removed.
Even if you don't register the Face ID, the TrueDepth camera will also start in a smart manner to support face perception, such as expanding the brightness when you have not gazing the iPhone, or reducing the tips when you look at the device. For example, when using Safari, the device determines if you are watching the device and close the screen when you have not gazing the device. If you do not want to use these features, you can turn on "Settings"> "General" and "Face Performance" is then disabled.
You can enable Face ID in the supported App as authentication. App will only receive a notification of successful certification. The APP cannot access Face ID information associated with the registered face.
Safe
iPhone and Truedepth camera systems have been thoroughly tested and meet international safety standards. Under normal conditions, use the TrueDepth camera system safely. The output of this system is weak and does not cause any injury to your eyes or skin. Please note that the infrared transmitter may be damaged when repairing or disassembling the iPhone, so be sure to pay your iPhone to Apple or authorized maintenance center. The TruedEpth camera system integrates tamper detection. If you detect tampering, the system may be deactivated for security reasons.
If you view a specific type of camera, you may find that the Truedepth camera is luminous. This is the result in the expected, because some cameras may detect infrared light. If in a very dark room, some people may also see the TrueDepth camera emits a weak light. In an extremely dark environment, this is the result of the expected results.
Auxiliary use
Auxiliary use is an important part of the Apple product. Users who are inconvenient in physical action can select "Assist Options" at the time of registration, which does not require a complete head activity range to capture different angles, which is still quite safe, but you must look more in the way the iPhone X must be more Consistent.
The Face ID also has an auxiliary function, which supports user-blind or poor vision users. If you don't want a Face ID, you can open your eyes on your iPhone X, you can open "Settings> General"> Auxiliary Use, and then deactivate "Use Face ID to Neited to Note". This feature will be automatically disabled if you enable VoiceOver during the initial setting.
Original link: https://www.eeboard.com/news/face-ID-2/
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