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http://dx.doi.org/10.9717/kmms.2021.24.8.1076

A Study on the Correlation between Atypical Form Factor-based Smartphones and Display-dependent Authentication Methods  

Choi, Dongmin (Div. of Undeclared Majors, Chosun University)
Publication Information
Journal of Korea Multimedia Society / v.24, no.8, 2021 , pp. 1076-1089 More about this Journal
Abstract
Among the currently used knowledge-based authentication methods for smartphones, text and graphic-based authentication methods, such as PIN and pattern methods, use a display unit and a touch function of the display unit for input/output of secret information. Recently released smartphone form factors are trying to transform into various forms, away from the conventional bar and slate types because of the material change of the display unit used in the existing smartphone and the increased flexibility of the display unit. However, as mentioned in the study of D. Choi [1], the structural change of the display unit may directly or indirectly affect the authentication method using the display unit as the main input/output device for confidential information, resulting in unexpected security vulnerabilities. In this paper, we analyze the security vulnerabilities of the current mobile user authentication methods that is applied atypical form factor. According to the analysis results, it seems that the existing display-dependent mobile user authentication methods do not consider emerging security threats at all. Furthermore, it is easily affected by changes in the form factor of smartphones. Finally, we propose countermeasures for security vulnerabilities expected when applying conventional authentication methods to atypical form factor-based smartphones.
Keywords
Atypical Form Factor; Authentication; Smartphone; Display Unit; Touch;
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