Identity authentication method and system based on keystroke behaviors

Abstract

The invention provides an identity authentication method based on keystroke behaviors. The method includes following steps: S1, building a user model of legal user keystroke characteristics according to legal keystroke behaviors during training of legal users; S2, acquiring to-be-estimated keystroke behaviors during keystroke of logged-in users, and generating a to-be-estimated keystroke time sequence; S3, generating a to-be-estimated pole adjacent character sequence according to the to-be-estimated keystroke time sequence; and S4, matching the to-be-estimated pole adjacent character sequence and the user model, and determining whether the to-be-estimated keystroke behaviors of the logged-in users are legal according to a matching result; generating an alarm and enabling the logged-in users to log in again if illegal, and allowing the logged-in users to log in if legal; and storing the to-be-estimated keystroke behaviors and updating the user model. According to the method, a few representative keystroke characteristics of the users are extracted, the authentication accuracy is guaranteed, the response capability of continuous authentication is improved, the keystroke behaviors of the users are monitored in real time, and continuous account safety guarantee is provided for the users.

Description

technical field [0001] The invention relates to the Internet field, in particular to an identity authentication method and system based on keystroke behavior. Background technique [0002] With the rapid development of the Internet, users have higher requirements on the security of accounts in the Internet. The most common method by far is authentication based on a text-matching combination of username and password. Although this method is simple and easy to implement, once the password is leaked, this identity authentication method will become invalid. Since everyone's behavior has its own biological characteristics, and the user's keystroke behavior is related to the user's age, gender, and familiarity with computer keyboards, the keystroke behavior patterns of different users are difficult to be imitated and embezzled by others of. Moreover, the authentication method based on the keystroke behavior does not require additional hardware support, the cost is low, and the ...

AI Technical Summary

Problems solved by technology

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide an identity authentication method and system based on keystroke behavior, which is used to solve the problem of excessive collection, high cost, and inability to real-time user authentication in the prior art. The problem of confirming the legality of identity

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