4.5 Article

A Large-scale Empirical Analysis of Browser Fingerprints Properties forWeb Authentication

期刊

ACM TRANSACTIONS ON THE WEB
卷 16, 期 1, 页码 -

出版社

ASSOC COMPUTING MACHINERY
DOI: 10.1145/3478026

关键词

Browser fingerprinting; web authentication; multi-factor authentication

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This article investigates the adequacy of browser fingerprints for web authentication and evaluates their distinctiveness, stability, collection time, size, and accuracy of a verification mechanism. Through a large-scale dataset assessment, it is found that browser fingerprints have high distinctiveness and stability, and perform well in terms of performance.
Modern browsers give access to several attributes that can be collected to form a browser fingerprint. Although browser fingerprints have primarily been studied as a web tracking tool, they can contribute to improve the current state of web security by augmenting web authentication mechanisms. In this article, we investigate the adequacy of browser fingerprints for web authentication. We make the link between the digital fingerprints that distinguish browsers, and the biological fingerprints that distinguish Humans, to evaluate browser fingerprints according to properties inspired by biometric authentication factors. These properties include their distinctiveness, their stability through time, their collection time, their size, and the accuracy of a simple verification mechanism. We assess these properties on a large-scale dataset of 4,145,408 fingerprints composed of 216 attributes and collected from 1,989,365 browsers. We show that, by time-partitioning our dataset, more than 81.3% of our fingerprints are shared by a single browser. Although browser fingerprints are known to evolve, an average of 91% of the attributes of our fingerprints stay identical between two observations, even when separated by nearly six months. About their performance, we show that our fingerprints weigh a dozen of kilobytes and take a few seconds to collect. Finally, by processing a simple verification mechanism, we show that it achieves an equal error rate of 0.61%. We enrich our results with the analysis of the correlation between the attributes and their contribution to the evaluated properties. We conclude that our browser fingerprints carry the promise to strengthen web authentication mechanisms.

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