Continuous identity authentication method fusing sliding track and dynamic characteristics on smart phone

Abstract

The invention relates to a continuous identity authentication method fusing a sliding track and dynamic characteristics on a smart phone, and belongs to the field of privacy protection and mode recognition. Aims to solve the problems of relatively low availability caused by over-high requirements on equipment hardware, relatively low robustness and accuracy caused by single data source and over-simple characteristics and the like in an existing continuous authentication method based on touch screen sliding behavior characteristics, the present invention provides a continuous identity authentication method fusing a sliding track and dynamic characteristics on a smart phone. According to the method, a touch screen and motion sensors (an acceleration sensor, an angular velocity sensor and a gravity sensor) widely applied to a smart phone are used as data sources, and different motion states of a user when the user uses the smart phone are considered, so that the availability, robustness and authentication accuracy of the authentication system are greatly improved. The method is suitable for continuous system identity authentication of the smart phone.

Description

technical field [0001] The invention belongs to the fields of privacy protection and pattern recognition, and in particular relates to a continuous identity authentication method on a smart phone that integrates sliding tracks and dynamic features. Background technique [0002] To protect users' privacy, various authentication mechanisms are applied to smartphones, such as fingerprint scanning, facial recognition, PIN, and pattern passwords. These mechanisms provide one-time authentication when a user logs in, and they check whether the current user has pre-set credentials. While this traditional method of one-time authentication dominates on smartphones, there are issues in terms of security and ease of use. In terms of security, the traditional authentication method on a smart phone will no longer detect whether there is an intrusion after the user passes through the system, which leads to the failure of the authentication method when the adversary accesses the unlocked m...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems in the above-mentioned continuous authentication method based on the sliding behavior characteristics of the touch screen, such as low usability caused by excessive requirements on equipment hardware, and low robustness and accuracy caused by a single data source and too simple features, and proposes A continuous identity authentication method that combines sliding trajectories and dynamic features is proposed. This method uses touch screens and motion sensors (acceleration sensors, angular velocity sensors, and gravity sensors) widely used in smart phones as data sources, and considers the user's use of smart phones. The different motion states at the time greatly improved the usability, robustness and accuracy of the authentication system

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