대한산업공학회지 (Journal of Korean Institute of Industrial Engineers)

  • 제42권4호
  • /
  • Pages.280-289
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  • 2016
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  • 1225-0988(pISSN)
  • /
  • 2234-6457(eISSN)
대한산업공학회 (Korean Institute of Industrial Engineers)
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자유로운 문자열의 키스트로크 다이나믹스와 일범주 분류기를 활용한 사용자 인증

User Authentication Based on Keystroke Dynamics of Free Text and One-Class Classifiers

  • 서동민 (서울과학기술대학교 데이터사이언스학과) ;
  • 강필성 (고려대학교 산업경영공학부)
  • Seo, Dongmin (Department of Data Science, Seoul National University of Science and Technology) ;
  • Kang, Pilsung (School of Industrial Management Engineering, Korea University)
  • 투고 : 2015.12.30
  • 심사 : 2016.04.27
  • 발행 : 2016.08.15
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초록

User authentication is an important issue on computer network systems. Most of the current computer network systems use the ID-password string match as the primary user authentication method. However, in password-based authentication, whoever acquires the password of a valid user can access the system without any restrictions. In this paper, we present a keystroke dynamics-based user authentication to resolve limitations of the password-based authentication. Since most previous studies employed a fixed-length text as an input data, we aims at enhancing the authentication performance by combining four different variable creation methods from a variable-length free text as an input data. As authentication algorithms, four one-class classifiers are employed. We verify the proposed approach through an experiment based on actual keystroke data collected from 100 participants who provided more than 17,000 keystrokes for both Korean and English. The experimental results show that our proposed method significantly improve the authentication performance compared to the existing approaches.

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참고문헌

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