Keep your Identity Small: Privacy-preserving Client-side Fingerprinting
Alberto Fernandez-de-Retana, Igor Santos-Grueiro

TL;DR
This paper introduces PCF, a privacy-preserving client-side fingerprinting method that enables device identification without enabling web tracking, by requiring websites to declare fingerprinting scripts and limiting fingerprint uniqueness across domains.
Contribution
The paper presents a novel client-side fingerprinting approach that enhances user privacy by preventing web tracking while allowing device identification.
Findings
PCF effectively limits fingerprint uniqueness across domains.
PCF enables device fingerprinting without tracking users across websites.
The method maintains fingerprinting accuracy while enhancing privacy.
Abstract
Device fingerprinting is a widely used technique that allows a third party to identify a particular device. Applications of device fingerprinting include authentication, attacker identification, or software license binding. Device fingerprinting is also used on the web as a method for identifying users. Unfortunately, one of its most widespread uses is to identify users visiting different websites and thus build their browsing history. This constitutes a specific type of web tracking that poses a threat to users' privacy. While many anti-tracking solutions have been proposed, all of them block or tamper with device fingerprinting techniques rather than just blocking their web tracking application. Therefore, users may be limited in their experience while using a website. In this paper, we propose Privacy-preserving Client-side Fingerprinting (PCF), a new method that allows device…
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Taxonomy
TopicsInternet Traffic Analysis and Secure E-voting · Privacy, Security, and Data Protection · Hate Speech and Cyberbullying Detection
