The keystroke dynamic authentication (KDA) technique was proposed in the literature to develop a more effective authentication technique than traditional methods. KDA analyzes the rhythmic typing of the owner on a keypad or keyboard as a source of verification. In this study, we extend the findings of the system by analyzing the existing literature and validating its effectiveness in Arabic. In particular, we examined the effectiveness of the KDA system in Arabic for touchscreen-based digital devices using two KDA classes: fixed and free text. To this end, a KDA system was developed and applied to a selected device operating on the Android platform, and various classification methods were used to assess the similarity between log-in and enrolment sessions. The developed system was experimentally evaluated. The results showed that using Arabic KDA on touchscreen devices is possible and can enhance security. It attains a higher accuracy with average equal error rates of 0.0% and 0.08% by using the free text and fixed text classes, respectively, implying that free text is more secure than fixed text.

中文翻译：

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分析阿拉伯语触摸按键动态认证的有效性

文献中提出了击键动态身份验证 (KDA) 技术，以开发比传统方法更有效的身份验证技术。KDA 分析所有者在小键盘或键盘上有节奏的打字作为验证来源。在这项研究中，我们通过分析现有文献并验证其在阿拉伯语中的有效性来扩展该系统的发现。特别是，我们使用两个 KDA 类（固定文本和自由文本）检查了阿拉伯语 KDA 系统对基于触摸屏的数字设备的有效性。为此，开发了一个 KDA 系统并将其应用于运行在 Android 平台上的选定设备，并使用各种分类方法来评估登录和注册会话之间的相似性。对开发的系统进行了实验评估。结果表明，在触摸屏设备上使用阿拉伯语 KDA 是可能的，并且可以增强安全性。通过分别使用自由文本和固定文本类，它以平均 0.0% 和 0.08% 的平均相等错误率获得更高的准确率，这意味着自由文本比固定文本更安​​全。