Prabhjot Singh (University of Waterloo), Diogo Barradas (University of Waterloo), Tariq Elahi (University of Edinburgh), Noura Limam (University of Waterloo)

Despite the implementation of encrypted channels, such as those offered by anonymity networks like Tor, network adversaries have demonstrated the ability to compromise users’ browsing privacy through website fingerprinting attacks. This paper studies the susceptibility of Tor users to website fingerprinting when data is exchanged over low Earth orbit (LEO) satellite Internet links. Specifically, we design an experimental testbed that incorporates a Starlink satellite Internet connection, allowing us to collect a dataset for evaluating the success of website fingerprinting attacks in satellite environments compared to conventional fiber connections. Our findings suggest that Tor traffic transmitted via Starlink is as vulnerable to fingerprinting attacks as traffic over fiber links, despite the distinct networking characteristics of Starlink connections in contrast to fiber.

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Arjun Arunasalam (Purdue University), Andrew Chu (University of Chicago), Muslum Ozgur Ozmen (Purdue University), Habiba Farrukh (University of California, Irvine), Z. Berkay Celik (Purdue University)

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Raushan Kumar Singh (IIT Ropar), Sudeepta Mishra (IIT Ropar)

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