ChinaCom2008-Network and Information Security Symposium

Research Article

A Measurement Study of PPStream

  • @INPROCEEDINGS{10.1109/CHINACOM.2008.4685232,
        author={Xiao Su and Linan Chang},
        title={A Measurement Study of PPStream},
        proceedings={ChinaCom2008-Network and Information Security Symposium},
        publisher={IEEE},
        proceedings_a={CHINACOM2008-NIS},
        year={2008},
        month={11},
        keywords={peer-to-peer media streaming security analysis measurement},
        doi={10.1109/CHINACOM.2008.4685232}
    }
    
  • Xiao Su
    Linan Chang
    Year: 2008
    A Measurement Study of PPStream
    CHINACOM2008-NIS
    IEEE
    DOI: 10.1109/CHINACOM.2008.4685232
Xiao Su1,*, Linan Chang1,*
  • 1: Computer Engineering Department San Jos´e State University San José, CA 95192, USA
*Contact email: xsu@email.sjsu.edu, chang_linan@yahoo.com

Abstract

In this article, we first review the evolution of Peer-to-Peer (P2P) file sharing and media streaming systems, and then focus on one of the most popular P2P-based media streaming services – PPStream. We describe the PPStream protocol discovered through reverse engineering efforts and discuss our measurement study conducted to evaluate three aspects of the system: privacy, locality, and availability. The experiments reveal that PPStream is vulnerable to privacy exploits and is not locality-aware when selecting peers to exchange media packets. The study also finds that PPStream is fairly robust against packet filtering-based Denial-of-Service (DoS) attacks that target its channel discovery, peer registration, and peer discovery protocols.