关键词: 手机用户认证, 加速度传感器, 触摸屏传感器, 加权认证, 多元线性回归

Abstract: In view of the protection of personal information security of mobile phone, a user authentication scheme based on sensor information analysis is designed. The scheme uses the built-in accelerometer sensors and touch screen sensors to collect the users’data, analyzes the characteristics of telephone answering, sliding touch screen operation, standby state behaviors and carries on the classification and recognition separately by dynamic time warping algorithm. Because the single feature is limited to the specific condition and the stability of the identification result is poor, the multiple linear regression method is introduced to design the fusion decision model. The scheme does not require specific hardware device configuration, which can meet the requirements of users’ comfort in the actual scene and accurately identify the user’s control of the mobile phone.

Key words: mobile phone user authentication, acceleration sensor, touch screen sensor, weighted authentication, multiple linear regression model