Identity verification method based on mobile phone acceleration sensor

Abstract

The invention discloses an identity verification method based on a mobile phone acceleration sensor. The method includes the following steps that firstly, a user writes a track with a mobile phone according to his habit, and a mobile phone acceleration sensor collects an acceleration value of the track; secondly, preprocessing is carried out on collected original acceleration data; thirdly feature extraction based on wavelet decomposition is carried out on the preprocessed data, and feature vectors are constructed; in the training stage, the data are collected, preprocessing and feature extraction are carried out, and the feature vectors are combined to form a set, an SVM is used for training a classifier model; in the identity verification stage, the user writes a gesture track to be verified, data are collected and are subjected to preprocessing and feature extraction, finally a track feature vector is added to an SVM model for verification, and whether the user is a legal user or not is judged. According to the method, identity verification of a mobile phone end does not need other external equipment, the mobile phone is effectively prevented from being stolen due to the fact that the gesture of each person is unique, and interaction is simple.

Description

technical field [0001] The invention relates to an identity authentication method based on an acceleration sensor of a mobile phone. Background technique [0002] Identity authentication refers to a process in which the system confirms whether the user's identity is legal, authentic and unique when the user accesses the system or accesses system resources with different protection levels. In the application of information systems in an open network environment, identity authentication is particularly important. It is the first step to effectively prevent illegal users from entering the system or illegally stealing information resources, and realize authorization and security auditing. [0003] Traditional identity authentication is mainly divided into two types. One is identity authentication based on known things, that is, certain information that only the user knows, such as passwords, passwords, PIN codes, etc., and the user's identity is judged by confirming these infor...

AI Technical Summary

Problems solved by technology

[0008] 3. Dynamic password: The most common one is the SMS password. The identity authentication system sends a password to the user's mobile phone through the SMS. Go to the identity authentication system to change the relevant mobile phone number information, which reduces the operability

However, USB Key is not conveniently used in mobile terminal equipment at present, so the identity authentication on mobile terminal cannot give full play to its advantages

[0010] 5. Face authentication, fingerprint authentication, and iris authentication: traditional authentication methods can only provide certain security guarantees, and if they are leaked or stolen, it is easy to cause loss of property and personal privacy

However, during identity authentication, if the face changes or is blocked, especially if it is replaced by a photo or video containing the user, the face verification will be prone to wrong authentication results, so face verification needs to involve liveness detection , and the hardware resource configuration of the mobile phone is limited, so the smoothness of authentication will be reduced

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