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1. (WO2017067103) KEYSTROKE BEHAVIOUR-BASED IDENTITY AUTHENTICATION METHOD AND SYSTEM

Pub. No.:    WO/2017/067103    International Application No.:    PCT/CN2016/070988
Publication Date: Fri Apr 28 01:59:59 CEST 2017 International Filing Date: Sat Jan 16 00:59:59 CET 2016
IPC: H04L 29/06
Applicants: TONGJI UNIVERSITY
同济大学
Inventors: JIANG, Changjun
蒋昌俊
YAN, Chungang
闫春钢
CHEN, Hongzhong
陈闳中
DING, Zhijun
丁志军
SONG, Xiaoshuang
宋小双
Title: KEYSTROKE BEHAVIOUR-BASED IDENTITY AUTHENTICATION METHOD AND SYSTEM
Abstract:
A keystroke behaviour-based identity authentication method, comprising the following steps: S1. constructing a user model of a keystroke feature of a legal user according to a legal keystroke behaviour of the legal user in training; S2. collecting a keystroke behaviour to be assessed of a login user at the time of keystroke to generate a keystroke time sequence to be assessed; S3. generating a polar adjacent character sequence to be assessed according to the keystroke time sequence to be assessed; and S4. matching the polar adjacent character sequence to be assessed with the user model, and determining whether the keystroke behaviour to be assessed of the login user is legal according to a matching result, if not, generating an alarm and making the login user log in again, and if yes, allowing the login user to log in, and at the same time storing the keystroke behaviour to be assessed and updating the user model. Extraction of only few representative keystroke features of a user guarantees an authentication accuracy rate and improves the response capability for continuous authentication at the same time; and monitoring a keystroke behaviour of the user in real time offers continuous account security assurance for the user.