arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2302.02740cs.CR
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AuthentiSense:一种基于少样本学习的移动平台可扩展行为生物认证方案

AuthentiSense: A Scalable Behavioral Biometrics Authentication Scheme using Few-Shot Learning for Mobile Platforms

Hossein Fereidooni, Jan König, Phillip Rieger, Marco Chilese, Bora Gökbakan, Moritz Finke, Alexandra Dmitrienko, Ahmad-Reza Sadeghi

摘要:

移动应用程序广泛用于在线服务,在线共享大量个人数据。一次性认证技术,如密码和生理生物特征(例如,指纹、面部和虹膜)具有它们自己的优点,但也有缺点,因为它们可能被窃取或模仿,并且一旦解锁,就不能阻止对底层设备的访问。为了应对这些挑战,出现了基于行为生物识别的补充认证系统。目标是基于用户与移动终端的交互来持续地分析用户。然而,现有的行为认证方案不是(i)用户不可知的,这意味着它们不能在没有模型重新训练的情况下动态地处理用户群的变化,或者(ii)不能很好地扩展以认证数百万用户。在本文中,我们提出了AuthentiSense,一个用户不可知的,可扩展的,高效的行为生物识别认证系统,能够实现连续认证,并只利用运动模式(即,加速度计、陀螺仪和磁力计数据),同时用户与移动应用程序进行交互。我们的方法既不需要手动设计的功能,也不需要大量的数据来进行模型训练。我们利用一种称为暹罗网络的少样本学习技术来大规模验证用户。我们进行了系统的测量研究,并报告的影响,如认证和n杆验证(与注册样本比较)所需的交互时间的参数在识别阶段。值得注意的是,即使以Few-Shot的方式进行评估,每个用户只需要几个行为样本(3个镜头),AuthentiSense在F1分数方面也达到了高达97%的高准确度。我们的方法仅在用户交互1秒后准确地对用户进行身份验证。对于AuthentiSense,我们报告的FAR和FRR分别为0.023和0.057。

英文摘要:

Mobile applications are widely used for online services sharing a large amount of personal data online. One-time authentication techniques such as passwords and physiological biometrics (e.g., fingerprint, face, and iris) have their own advantages but also disadvantages since they can be stolen or emulated, and do not prevent access to the underlying device, once it is unlocked. To address these challenges, complementary authentication systems based on behavioural biometrics have emerged. The goal is to continuously profile users based on their interaction with the mobile device. However, existing behavioural authentication schemes are not (i) user-agnostic meaning that they cannot dynamically handle changes in the user-base without model re-training, or (ii) do not scale well to authenticate millions of users. In this paper, we present AuthentiSense, a user-agnostic, scalable, and efficient behavioural biometrics authentication system that enables continuous authentication and utilizes only motion patterns (i.e., accelerometer, gyroscope and magnetometer data) while users interact with mobile apps. Our approach requires neither manually engineered features nor a significant amount of data for model training. We leverage a few-shot learning technique, called Siamese network, to authenticate users at a large scale. We perform a systematic measurement study and report the impact of the parameters such as interaction time needed for authentication and n-shot verification (comparison with enrollment samples) at the recognition stage. Remarkably, AuthentiSense achieves high accuracy of up to 97% in terms of F1-score even when evaluated in a few-shot fashion that requires only a few behaviour samples per user (3 shots). Our approach accurately authenticates users only after 1 second of user interaction. For AuthentiSense, we report a FAR and FRR of 0.023 and 0.057, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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