Security issues become focus biometrics have been changing

During the rapid rise of smart phones in recent years, mobile phones carry a large amount of personal information of users. Once lost or the password of the power-on password is compromised, private photos, bank card passwords, secret documents and other information will be obtained by criminals. , causing huge losses to individual users.

Since the advent of the electronic information era, people have never stopped research on information security, especially based on personal privacy. During the rapid rise of smart phones in recent years, mobile phones carry a large amount of personal information of users. Once lost or the password of the power-on password is compromised, private photos, bank card passwords, secret documents and other information will be obtained by criminals. , causing huge losses to individual users.

The password lock of smart phones also undergoes upgrades from digital passwords, gesture unlocking, and fingerprint recognition, and now iris recognition and face recognition are on the stage of history. It can be expected that fingerprint recognition will soon complete his mission in the near future and be abandoned by smart phone manufacturers. One is the popularity of the full screen, and the other is that the new FaceID technology will be more secure and convenient when it is used. The revolution in biometrics has become a selling point for smart phone manufacturers.

Smart devices will have full built-in biometrics

The latest report from Acuity Market Intelligence shows that smartphones will increasingly use biometrics, and it expects that two-thirds of smartphones sold worldwide this year will carry biometric technology, and by 2019, all smartphones will be shipped. Built-in biometric technology. Fingerprint recognition has become common in Android machines and has become standard on midrange machines. By 2020, it is expected that all smart devices, including tablets, will use biometrics technology.

Fingerprint recognition is coming to an end?

After Apple's IPhone 5S product is equipped with fingerprint recognition technology, the technology has evolved from a tasteless function to an essential feature of smartphones. Until the appearance of IPhoneX, the fingerprint recognition technology could not be applied to the cancellation of the Home screen and was replaced by the face recognition function. According to well-known big gods, all new Apple machines will abandon fingerprint recognition technology next year. This also means that IPhone is more inclined to choose Face ID in the technology of password recognition, and fingerprint recognition has finally come to a head.

Many models of domestic manufacturers have placed the fingerprint recognition function button behind the back of the camera, which also largely affects the user's experience of unlocking the screen and making use of Touch ID to make payment transactions. If there can be one at this time, With new technology replaced, domestic manufacturers are also very happy.

In fact, the rise of fingerprint recognition is entirely due to the unique fingerprint of each organism, and it is not too high in terms of technical difficulty. Therefore, the fingerprint recognition function is the earliest used biometric technology. Most of the mobile phone manufacturers' priority in designing the fingerprint recognition function is their market acceptance, not technical issues.

With the popularity of full-screen, Apple, Samsung, Huawei, Xiaomi, VIVO and other mainstream models have begun to try a full screen, under the screen fingerprint recognition function is not mature now, the use of a full-screen means that the positive fingerprint recognition function to Abandoned, can only be carried on the back of the body. When FaceID becomes more and more popular, the fingerprint recognition function will once again become a tasteless feature, and it will be reasonable for manufacturers to give up.

What is the gap between fingerprint recognition and face recognition?

When it comes to fingerprint recognition, one of its most important elements is its capacitive sensor, which can capture fingerprint images. When the user is performing fingerprint acquisition, a capacitive array is formed by a capacitive sensor and stored in a specific database after image processing. When fingerprint recognition is performed to unlock or pay, the capacitive sensor will transfer the captured fingerprint array to the original fingerprint array stored in the function processor and the database for comparison, when the coincidence degree of the two types of arrays reaches a specified value In the case of proportionality, the processor will send a signal to the unlock screen process to make a determination, and the system will perform an unlock process. The same mechanism is also used for fingerprint payment.

The application of face recognition needs to consider multiple factors such as complex Lighting, biological dynamics, and occlusion. The difficulty of recognition is high, and the difficulty of natural cracking is also upgraded. It increases the security level of biometric password unlocking by one level, and improves the recognition accuracy. Also more than 10 times. Especially in terms of security, face recognition is more difficult to crack than fingerprint recognition.

1, from the service life point of view fingerprint recognition technology to be lower than the face recognition, its biggest weakness is still in the security, and the biological characteristics of face recognition is difficult to be forged, so the fingerprint is captured in the movie with a copy of the imitation The unlockable situation is not possible at the level of face recognition.

2. The cost of face recognition is lower than that of fingerprint recognition, and its application scope is wider. It can be used in traffic, public security, security inspection, household registration, and other fields. In smart phones, face recognition is mainly applied to screen unlocking and payment, which is the same as fingerprint recognition. However, using face recognition does not require expensive touch sensors, which can save a large part of hardware funds for manufacturers. cost.

Biometrics hidden crisis

Although the biometric function is already very high in terms of security, his uniqueness and inflexibility make him face greater security problems. That is, in the event of information leakage, the loss for the user is also huge. All his information will be stolen. What is even more frightening is that as the only biological feature, the stored face information cannot be changed after being stolen. In other words, this function cannot be used anymore. Fingerprinting is so, as is face recognition.

Mainly speaking about the face recognition function, using modern technology, with the aid of a three-dimensional model generation system and bionic skin, after obtaining some basic images and video data of the target user, it is possible to synthesize a basic model that can fool the face recognition system. Appropriate processing upgrades can well deal with face recognition technology under different conditions. Of course, this early period of work is still very large, and the average user does not have to worry about being targeted.

Fingerprint-recognizing prostheses are more convenient to make and less difficult. Amway can be used on the Internet for a lot of work, even if it is not a professional person. So, this brings about two levels of thinking:

1, the application of biometric recognition

Using biometrics technology, it can conduct cross-border cooperation and research in public security criminal investigation, transportation and other fields such as physical and chemical fields, and introduce safer and more reliable products. Combined with current big data technology and deep learning technology, biometrics will act as a mainstream smart model that plays a controlling role in industrial convergence. This will make more sense.

2. Is there a better alternative to biometrics?

The uniqueness of biometrics itself can well ensure the privacy of its user information, but the secretiveness of too private stuff is more serious after being lost, while privacy and security itself are antagonistic and contradictory, and we pay for it. The application can only choose one point from the development.

Of course, from the point of view of recognition accuracy and safety, the vein biological identification technology is the most secure, but due to its high technical cost, it is difficult to commercialize it under the current state of the art.

The current biometrics technology is still developing, and there is still a lot of room for improvement. Although the fingerprint recognition technology and face recognition technology introduced by major mobile phone manufacturers are flawed, they can still meet the needs of users in practical applications. of. From the aspect of security, it is difficult to solve the problem of poor user experience by superimposing passwords, fingerprints, and face recognition. Of course, we are still willing to take a rational attitude towards biometrics in a supportive manner. At the same time, we must not ignore the fact that we must always be vigilant against the issue of information security so as to prevent criminals from entering the country.