Impression Cognitive Wang Yugguang: Low resolution fingerprint technology unsafe

in Europe

Since 2012, when Apple acquired fingerprint maker AuthenTec, fingerprint features have become standard for high-end handsets. Due to the safety of intellectual property and fingerprint, fingerprint technology is not easy to use in mobile terminals such as mobile phones.

Chaos Computer Club, Europe's largest hacker group, uses a copy of the fingerprint membrane to easily crack Apple's touch ID. And through public news photos, they have successfully copied the German defence minister's fingerprints. In the times when ordinary people can copy fingerprints through a treasure-net purchase, the fingerprint function of mobile terminals also faces great security test.

The domestic fingerprint identification expert, the impression Cognition general manager Wang Yugguang to "pretends is the geek" to say, the fingerprint copy may use in the Touch ID and the attendance and so on occasion, the main reason is because these fingerprint sensor's resolution is low, uses in the security protection the fingerprint characteristic to be caused less.

The characteristics of a fingerprint can usually be divided into three levels. The first level characteristic indicates the macroscopic characteristics of fingerprint pattern and direction. The second-order features indicate the Galton details of the fingerprint, namely, the bifurcation points and endpoints of the lines, and the three-level feature is the stripe properties of the higher resolution, such as the deviation of the lines, width, porokeratosis, folds, scars, and other permanent features. In domestic and international criminal investigation, including traditional fingerprint recognition application market, the basic use of two-level characteristics. But with the development of smartphones, limited by size and cost, two-level features are increasingly unable to meet security requirements.

(Fig: 2000DPI resolution of the sweat glands on the fingerprint is clearly visible)

Wang Yugguang said, after more than two years of research and development, impression recognition based on the theory of Small aperture imaging Mapis (matrix-type porous imaging) fingerprint sensor can better solve the current capacitance, ultrasonic and other fingerprint sensors encountered low resolution, poor environmental adaptability, easy to be static damage and other problems. This fingerprint sensor resolution of 2000DPI, is 4 times times the Touch ID, the thickness is only 1.5 mm, the cost of only one of the traditional optical sensor dozens of points. At present, the impression of recognition is to apply for the technology of a number of invention patents, no other fingerprint technology patent barriers, but also make it easy to be accepted by handset manufacturers.

It is understood that the current domestic part of the one or two-line mobile phone manufacturers have been for this fingerprint sensor in the evaluation, is expected to launch a prototype in the year. However, in the current fingerprint sensor field of more successful cases currently only Apple touch ID, Samsung HTC using Synaptics manufacturers of sensors in the market has not caused greater repercussions. At home, impression cognition also faces the competition of manufacturers such as sinks, the fingerprint technology of the top has been applied to the MX4 Pro model. Wang Yugguang that the fingerprint sensor industry has just started, with its own technological innovation, in mobile terminals and intelligent hardware development environment, third-party manufacturers have a lot of opportunities.