Improvement of keystroke data quality through artificial rhythms and cues

Pilsung Kang, Sunghoon Park, Seong seob Hwang, Hyoung joo Lee, Sungzoon Cho

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


Keystroke dynamics based user authentication (KDA) can achieve a relatively high performance if a fairly large number of typing patterns are available. It is almost always the case that KDA is combined with password based authentication. Users are often required to change their passwords. When a user changes one's password, however, only a handful of new patterns become available. In a mobile situation, moreover, very short passwords are used. Under such a circumstance, the quality of data becomes important. Recently, artificial rhythms and cues were proposed to improve the quality of data. In this paper, we verify the effectiveness of artificial rhythms and cues through hypotheses tests using the data from 25 users under various situations. The experimental results show that artificial rhythms increase the uniqueness while cues increase the consistency.

Original languageEnglish
Pages (from-to)3-11
Number of pages9
JournalComputers and Security
Issue number1-2
Publication statusPublished - 2008 Mar
Externally publishedYes


  • Artificial rhythms
  • Cues
  • Data quality
  • Keystroke dynamics
  • Password authentication

ASJC Scopus subject areas

  • Computer Science(all)
  • Law


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