User Authentication Via Dental Occlusion Biometrics

Nowadays,with the continuous development of intelligent society and wearable devices,there has been an explosive growth of smart devices.Wearable devices are also increasingly appearing in our lives,such as smart watches,Google glasses and eeg detectors.The emergence of the smart devices provide a lot of convenience to our lives,also greatly enhance the user experience,such as,pay by smart watch or smart bracelet,use smart wristband or smart watches to test the personal health,use smart glasses to make phone calls and take pictures,or even interact with privacy data in your phone.From the interaction of these people with wearable devices,many smart wearable record our personal privacy data.So while we are enjoying convenience,we are also facing some serious data security problems,such as data privacy,and study the privacy data security problem is of great significance for protecting personal information security.At present,there are many user authentication schemes,such as: face recognition,iris recognition,fingerprint recognition,voice pattern recognition,vein recognition and so on.Due to the limitations of traditional authentication methods such as size,hardware or computing power,they cannot be well adapted to wearable smart devices.As a result,the user authentication of wearable devices on the market is unsafe,inconvenient and seriously consumes resources.In order to solve this problem,we explored a new type of biometric authentication mechanism,namely(BiLock): the use of the voice of human teeth bite(teeth knocked)for wearable devices to user authentication,we verified its feasibility by comprehensive analysis,and on the Android platform was designed and implemented two prototypes.The authentication mode is convenient,need not add any additional hardware devices,and low resource consumption.A series of verification tests were carried out in real life,and the accuracy,robustness and safety of the system in different environments were evaluated.The results show that BiLock can achieve the error rejection rate of less than 5% and the error acceptance rate of less than 0.95%.Even in noisy environment,the results will not fluctuate greatly.We also conducted a comparative experiment,which showed that BiLock has great advantages in anti-noise and safety.