1. Beauty and the Burst: Remote Identification of Encrypted Video Streams 2017 MachineLearning Usenix
    Roei Schuste, Vitaly Shmatikov, and Eran Tromer
    [View PDF on usenix.org]
    [Show BibTex Citation]

    @inproceedings {203850,
    author = {Roei Schuster and Vitaly Shmatikov and Eran Tromer},
    title = {Beauty and the Burst: Remote Identification of Encrypted Video Streams},
    booktitle = {26th {USENIX} Security Symposium ({USENIX} Security 17)},
    year = {2017},
    isbn = {978-1-931971-40-9},
    address = {Vancouver, BC},
    pages = {1357--1374},
    url = {https://www.usenix.org/conference/usenixsecurity17/technical-sessions/presentation/schuster},
    publisher = {{USENIX} Association},
    }

The MPEG-DASH streaming video standard contains an information leak: even if the stream is encrypted, the segmentation prescribed by the standard causes content-dependent packet bursts. We show that many video streams are uniquely characterized by their burst patterns, and classifiers based on convolutional neural networks can accurately identify these patterns given very coarse network measurements. We demonstrate that this attack can be performed even by a Web attacker who does not directly observe the stream, e.g., a JavaScript ad confined in a Web browser on a nearby machine.

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