Biometric Authentication by Handwriting Using Leap Motion
Satoshi Kamaishi, Ryuya Uda · 2016
In recent years, biometrics authentication becomes popular. No key is required in biometrics authentication while password must be remembered in password authentication. Moreover, living parts for biometrics authentication cannot be stolen with usual method. Therefore, reading devices for biometrics authentication on IT devices also gradually become popular. Especially, fingerprint readers are the most popular devices on IT devices since they are small and they can be attached with a few costs. However, there is a critical problem in biometrics authentication when information for biometrics authentication is once stolen. Especially, it is known that fingerprints can be copied with remaining prints on the surface of smart phones. Information for biometrics authentication cannot be changed. That is, the information never be used again to protect against the fraud use. From the above, the best way for authentication is changeable biometrics authentication. Information which is related with personal physical characteristics is required but it must be changeable. One of the examples is a sign with handwriting. In this method, personal characteristics of tracks, speed and pressure are used for personal identification and they are information in biometrics. Those characteristics cannot be change when the same sign is written by the same person, but the sign can be changed when the information for authentication is stolen. Usually, pen tablets or touch panels are used for signs in biometrics authentication. However, stylus pens for tablets bother managers in public use. Fingers for signs on touch panels are also exposed to the menace of smudge attacks. Therefore, in this paper, we use Leap Motion device for signs in biometrics authentication. In our authentication system, signs in the air can be used for personal identification. Personal characteristics of tracks, speed and inclination of fingers are captured and used for the identification.