Terminal implicit identity authentication method based on Sudoku password

Abstract

The invention provides a mobile phone terminal implicit identity authentication method based on a Sudoku password and belongs to the technical field of information security protection. The method comprises the following steps: dividing a broken line basic unit of a Sudoku password to be authenticated, extracting feature data of each broken line basic unit of the to-be-authenticated Sudoku password, performing standardization processing, inputting the standardized feature data of each broken line basic unit of the to-be-authenticated Sudoku password into a trained identity authentication classifier model, determining a legality authentication index of the to-be-authenticated Sudoku password in combination with the weight coefficient assignment of the broken line basic units, and if the legality authentication index is greater than an authentication threshold value 0, determining that the to-be-authenticated Sudoku password is legal, otherwise, determining that the to-be-authenticated Sudoku password is illegal. According to the method, the multi-source and multi-dimensional characteristics of the preset Sudoku password are extracted, the Sudoku password gesture is divided by takingthe broken line containing more user information as a basic unit, fine grit detection of user behavior information is realized, the segmented gesture is weighted, and the password authentication accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of information security protection, in particular to a terminal implicit identity authentication method based on Jiugongge cipher. Background technique [0002] With the rapid development of communication technology and information technology, mobile devices such as smartphones proliferate, and their storage and computing capabilities are also getting stronger. Nowadays, smartphones have become an integral part of our lives, and the diversification of built-in sensors and application software makes people more and more dependent on smartphones. Activities closely related to life, such as online payment, financial management, and shopping, lead to a large amount of private data being stored on mobile phones. Once the phone is lost. The security of user privacy data will face a huge impact. Therefore, it is imperative to restrict access to devices by untrusted users by implementing reliable and convenient a...

AI Technical Summary

Problems solved by technology

This method enhances the security of user identity authentication, but this method only constructs behavioral characteristics related to taxiing speed. However, in actual situations, user behavior is determined by many characteristics, and a simple certain type of characteristic is not very good. summary of user behavior information

On the other hand, the system only constructs feature templates for part of the sliding direction and turning angle, and does not mention the processing method of sliding behavior data that is not in the template library. Therefore, this method is not very suitable for Jiugongge graphic password

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