Free‐text keystroke dynamics authentication for Arabic language

Abstract

This study introduces an approach for user authentication using free-text keystroke dynamics which incorporates text in Arabic language. The Arabic language has completely different characteristics to those of English. The approach followed in this study involves the use of the keyboard's key-layout. The method extracts timing features from specific key-pairs in the typed text. Decision trees were exploited to classify each of the users' data. In parallel for comparison, support vector machines were also used for classification in association with an ant colony optimisation feature selection technique. The results obtained from this study are encouraging as low false accept rates and false reject rates were achieved in the experimentation phase. This signifies that satisfactory overall system performance was achieved by using the typing attributes in the proposed approach, while typing Arabic text.

Continuous User Authentication Featuring Keystroke Dynamics Based on Robust Recurrent Confidence Model and Ensemble Learning Approach

“…On the other hand, the long texts datasets are further divided into two categories i.e., fixed text and free text. In this regard, former is based on pre-defined texts where user has to mimic the already provided tasks, on the contrary, the latter refers to the pattern in which users are given complete independence to employ any random text of any length without any constraints [10].…”

New soft biometrics for limited resource in keystroke dynamics authentication

“…The user's KD was modeled via the four modes and then applied to identify the legitimate users and imposters. [17] Orders of KD PC 2008 Hu et al [27] Pause rhythm PC 2009 Sulong et al [48] Typing pressure PC 2010 Chang et al [13] Music rhythm PC 2010 Park et al [44] Four classes of keystroke PC 2012 Chang et al [14] Space size of password Mobile devices 2014 Tsai et al [54] Size and pressure of the touch area Touch screen 2015 Kang and Cho [33] Three kinds of keyboards Soft keyboard, PC, touch screen 2015 Pisani and Lorena [45] Ranks of KD PC 2016 Chang et al [15] Dynamic KD Smart phones 2016 Alsultan et al [4] Key-layout of Arabic PC 2017 Alsultan et al [5] Non-conventional KD PC 2017 Alpar [3] Frequency spectrograms of KD PC 2018 Mondal and Bours [40] Mouse dynamics + KD PC 2018 Kim et al [34] Eight groups of typing speed PC 2019 This paper PEDIC PC Fig. 2 The FAR, FRR, and EER Their experiment included 35 participants and the result showed 8.9% EER.…”

“…In the research area of fixed long text, the long texts used in the enrollment phase and in the verification phase are the same [9,42]. With regard to free text authentication, users can input an arbitrarily long text compared to the long text used in the enrollment phase [1,4,6,19,25,34,40,44,46,51].…”

Shared Data Set for Free-Text Keystroke Dynamics Authentication Algorithms

“…Most studies analyze data collected in English. There are studies that research the field for texts in other languages, such as French [15], Italian [16], Japanese [17], Russian [18], Arabic [19], Korean [20] or others.…”