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- W4310921041 abstract "As an emerging service for in-browser content delivery, peer-assisted delivery network (PDN) is reported to offload up to 95% of bandwidth consumption for video streaming, significantly reducing the cost incurred by traditional CDN services. With such benefits, PDN services significantly impact today's video streaming and content delivery model. However, their security implications have never been investigated. In this paper, we report the first effort to address this issue, which is made possible by a suite of methodologies, e.g., an automatic pipeline to discover PDN services and their customers, and a PDN analysis framework to test the potential security and privacy risks of these services. Our study has led to the discovery of 3 representative PDN providers, along with 134 websites and 38 mobile apps as their customers. Most of these PDN customers are prominent video streaming services with millions of monthly visits or app downloads (from Google Play). Also found in our study are another 9 top video/live streaming websites with each equipped with a proprietary PDN solution. Most importantly, our analysis on these PDN services has brought to light a series of security risks, which have never been reported before, including free riding of the public PDN services, video segment pollution, exposure of video viewers' IPs to other peers, and resource squatting. All such risks have been studied through controlled experiments and measurements, under the guidance of our institution's IRB. We have responsibly disclosed these security risks to relevant PDN providers, who have acknowledged our findings, and also discussed the avenues to mitigate these risks." @default.
- W4310921041 created "2022-12-21" @default.
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- W4310921041 date "2022-12-05" @default.
- W4310921041 modified "2023-10-16" @default.
- W4310921041 title "Stealthy Peers: Understanding Security Risks of WebRTC-Based Peer-Assisted Video Streaming" @default.
- W4310921041 doi "https://doi.org/10.48550/arxiv.2212.02740" @default.
- W4310921041 hasPublicationYear "2022" @default.
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