An overview of anonymity technology usage

Bingdong Li, Esra Erdin, Mehmet Hadi Gunes, George Bebis, Todd Shipley

    Research output: Contribution to journalReview articlepeer-review

    27 Scopus citations

    Abstract

    Anonymity technologies enable Internet users to maintain a level of privacy that prevents the collection of identifying information such as the IP address. Understanding the deployment of anonymity technologies on the Internet is important to analyze the current and future trends. In this paper, we provide a tutorial survey and a measurement study to understand the anonymity technology usage on the Internet from multiple perspectives and platforms. First, we review currently utilized anonymity technologies and assess their usage levels. For this, we cover deployed contemporary anonymity technologies including proxy servers, remailers, JAP, I2P, and Tor with the geo-location of deployed servers. Among these systems, proxy servers, Tor and I2P are actively used, while remailers and JAP have minimal usage. Then, we analyze application-level protocol usage and anonymity technology usage with different applications. For this, we preform a measurement study by collecting data from a Tor exit node, a P2P client, a large campus network, a departmental email server, and publicly available data on spam sources to assess the utilization of anonymizer technologies from various perspectives. Our results confirm previous findings regarding application usage and server geo-location distribution where certain countries utilize anonymity networks significantly more than others. Moreover, our application analysis reveals that Tor and proxy servers are used more than other anonymity techniques.

    Original languageEnglish
    Pages (from-to)1269-1283
    Number of pages15
    JournalComputer Communications
    Volume36
    Issue number12
    DOIs
    StatePublished - 1 Jul 2013

    Keywords

    • Anonymity
    • I2P
    • Measurement
    • Proxy
    • Tor

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