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Keystroke Biometric Recognition on Chinese Long Text Input

  • Xiaodong Li
  • Jiafen LiuEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9794)

Abstract

Keystroke Biometric is useful in distinguishing legal users from perpetrators in online activities. Most previous keystroke studies focus on short text, however short text keystroke can only be used in limited scenarios such as user name and password input and provide one-time authentication. In this paper, we concentrate on how to detect whether current user is the legal one during the whole activity, such as writing an E-mail and chat online. We developed a JAVA applet to collect raw data, and then extracted features and constructed 4 classifiers. In the experiment, we required 30 users to choose a topic randomly and then type in a text about 400 Chinese characters on it. This experiment repeated 9 times in different days under the same typing environment. The accuracy of different methods shifts from 94.07 % to 98.15 %, the FAR reaches to 0.74 % and FRR to 1.15 %. In summary, Chinese free long text keystroke biometric recognition can be used to authenticate users during the whole online activity with satisfactory precision.

Keywords

Biometric features Chinese free-text Keystroke dynamics Authentication 

Notes

Acknowledgment

This work was supported by National Natural Science Foundation of China [60903201, 91218301]; and the Fundamental Research Funds for the Central Universities [JBK120505, JBK140129].

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.School of Economic Information EngineeringSouthwestern University of Finance and EconomicsChengduPeople’s Republic of China

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