Sensor characteristic sub-area modeling-based monitor method for user identity of touch screen equipment

Abstract

The invention discloses a sensor characteristic sub-area modeling-based monitor method for user identity of touch screen equipment. The method of the invention could use sensor data generated by a user to perform click operation on the touch screen equipment to perform silent monitor to legality of the user identity. The method comprises the steps as follows: 1) judging whether the touch screen equipment is new touch screen equipment or old touch screen equipment, entering into a step 2) to establish an identity monitor model if the touch screen equipment is the new equipment; entering into a step 3) of the identity monitor model if the touch screen equipment is the old equipment, wherein the step of establishing the identity monitor model is to divide a screen area as P plus Q touch screen area blocks, extracting data characteristics of a motion sensor in each touch screen area block, and establishing an identity monitor sub-model under each touch screen area block. The identity monitor mode is to capture motion sensor data generated via a click operation based on an observing window in a process that a user touches a screen, and extracts characteristic thereof as the input of the identity monitor sub-model under the touch screen area block so as to achieve real time monitoring of the user identity via threshold comparison.

Description

technical field [0001] The invention relates to a touch screen device safety protection technology, in particular to an identity monitoring method for a touch screen device user during interaction with the touch screen device. Background technique [0002] With the rapid development of the mobile Internet, smart phones have penetrated into all walks of life, affecting every detail of people's life and work. Smartphones record and store more and more important data (such as account passwords) and private information (such as SMS calls, pictures and videos) of mobile users. Especially in recent years, the widespread use of mobile payment-related applications and the frequent occurrence of privacy leaks have made the security protection of smartphones gradually come into the view of the government and the public. [0003] Secure and efficient authentication is at the heart of the secure use of smartphones. At present, there are mainly three authentication methods for smart ph...

AI Technical Summary

Problems solved by technology

For the text password method, it is easy to implement and simple and convenient, but it is easy to forget the password or be stolen

For graphic passwords (users need to connect several points in a certain order on a 3×3 dot matrix as a password), it is easy to remember, but touch screen traces and finger movements are easy to be used or observed to cause guessing attacks

For the fingerprint identification method, although the accuracy is high, it requires special hardware support

In addition, the above-mentioned identity verification methods can only be used for one-time protection in certain specific occasions (such as when unlocking), and once the mobile phone is hacked, it will completely lose its resistance

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