Mobile terminal user identity authentication method based on multi-finger touch behavior characteristics

Abstract

The present invention discloses a smart mobile terminal authentication method based on multi-finger touch behavior characteristics. The method comprises a first step of obtaining touch screen operating information of a user through multi-finger touch screen operation, the multi-finger touch screen operation being touch screen sliding of multiple fingers at a together-put state; a second step of extracting a physiological feature and a behavior feather of a touch screen from the user touch screen operation information, and combining the above feathers as one feature vector; a third step of training a probabilistic neural network classifier and a support vector machine classifier by using the above combined feather vector, to generate a training model of valid users; and a fourth step of collecting touch screen operation information of test users, processing the information according to the second step to obtain combined feature vectors of the touch screen operation of the test users, and putting the combined feature vectors into the two classifiers to compare with the training model of the valid users, thus to obtain classifying results if the test users are valid users.

Description

technical field [0001] The invention relates to user identity authentication technology, in particular to a mobile terminal user identity authentication method. Background technique [0002] With the advent of the information age and the increasing popularity of network technology, people rely more and more on various electronic devices to complete daily work, study and various affairs in life. It greatly improves the convenience of using information technology. Obviously, under such circumstances, information security, especially information security on mobile terminals has become an important and urgent problem to be solved. [0003] Identity authentication on smart mobile terminals is a vital part of protecting personal information security. The current mainstream authentication methods based on passwords and passwords need to be memorized by users, passwords are easy to forget, and cannot solve the problem of stolen account numbers and passwords; methods based on physi...

AI Technical Summary

Problems solved by technology

The current mainstream authentication methods based on passwords and passwords need to be memorized by users, passwords are easy to forget, and cannot solve the problem of stolen account numbers and passwords; methods based on physical authentication devices such as ID cards and tokens need to carry physical media with them, and they are also It is easy to be stolen or copied; although the authentication method based on physiological characteristics such as fingerprints and irises has high security, it requires special hardware equipment to complete the authentication, which is costly and not suitable for a large number of existing systems without related equipment

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