A Measurement of Genuine Tor Traces for Realistic Website Fingerprinting

• URL: http://arxiv.org/abs/2404.07892v1
• Date: Thu, 11 Apr 2024 16:24:49 GMT
• Title: A Measurement of Genuine Tor Traces for Realistic Website Fingerprinting
• Authors: Rob Jansen, Ryan Wails, Aaron Johnson,
• Abstract summary: Website fingerprinting (WF) is a dangerous attack on web privacy because it enables an adversary to predict the website a user is visiting. We present GTT23, the first WF dataset of genuine Tor traces, which we obtain through a large-scale measurement of the Tor network.
• Score: 5.4482836906033585
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Website fingerprinting (WF) is a dangerous attack on web privacy because it enables an adversary to predict the website a user is visiting, despite the use of encryption, VPNs, or anonymizing networks such as Tor. Previous WF work almost exclusively uses synthetic datasets to evaluate the performance and estimate the feasibility of WF attacks despite evidence that synthetic data misrepresents the real world. In this paper we present GTT23, the first WF dataset of genuine Tor traces, which we obtain through a large-scale measurement of the Tor network. GTT23 represents real Tor user behavior better than any existing WF dataset, is larger than any existing WF dataset by at least an order of magnitude, and will help ground the future study of realistic WF attacks and defenses. In a detailed evaluation, we survey 25 WF datasets published over the last 15 years and compare their characteristics to those of GTT23. We discover common deficiencies of synthetic datasets that make them inferior to GTT23 for drawing meaningful conclusions about the effectiveness of WF attacks directed at real Tor users. We have made GTT23 available to promote reproducible research and to help inspire new directions for future work.

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