<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>In this paper, we report on PIN-code typing behaviour on touchscreen devices of 112 subjects. Detailed statistical analysis revealed that the major di erence between subjects is in inter-key latency. Key-press duration variations are insignificant compared to inter-key latency variations. Subjects were grouped into meaningful clusters using clustering. The resulting clusters were of slow, medium, and fast typists. The dataset was split randomly into two equal size subsets. The first subset was used to train different synthetic data generators, while the second subset was used to evaluate an authentication attack using the generated synthetic data. The evaluation showed that slow typists were the hardest to attack. Both the dataset and the software are publicly available at <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="https://github.com/margitantal68/sapipin_paper">https://github.com/margitantal68/sapipin_paper</ext-link>.</p>
</abstract>

In this paper, we report on PIN-code typing behaviour on touchscreen devices of 112 subjects. Detailed statistical analysis revealed that the major di erence between subjects is in inter-key latency. Key-press duration variations are insignificant compared to inter-key latency variations. Subjects were grouped into meaningful clusters using clustering. The resulting clusters were of slow, medium, and fast typists. The dataset was split randomly into two equal size subsets. The first subset was used to train different synthetic data generators, while the second subset was used to evaluate an authentication attack using the generated synthetic data. The evaluation showed that slow typists were the hardest to attack. Both the dataset and the software are publicly available at https://github.com/margitantal68/sapipin_paper.

SapiPin: Observations on PIN-code typing dynamics

Sapientia Hungarian University of Transylvania

Acta Universitatis Sapientiae, Informatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"SapiPin: Observations on PIN-code typing dynamics"}

In this paper, we report on PIN-code typing behaviour on touchscreen devices of 112 subjects. Detailed statistical analysis revealed that the major di erence...

SapiPin: Observations on PIN-code typing dynamics

Published Online: Aug 08, 2023

Page range: 10 - 24

Received: Mar 13, 2023

DOI: https://doi.org/10.2478/ausi-2023-0002

Keywords
keystroke dynamics, PIN-code, synthetic attack, anomaly detection

© 2023 Margit Antal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

SapiPin: Observations on PIN-code typing dynamics

Published Online: Aug 08, 2023

Page range: 10 - 24

Received: Mar 13, 2023

DOI: https://doi.org/10.2478/ausi-2023-0002

Keywordskeystroke dynamics, PIN-code, synthetic attack, anomaly detection

© 2023 Margit Antal et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
keystroke dynamics, PIN-code, synthetic attack, anomaly detection