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Flexible Verification of MPEG-4 Stream in Peer-to-Peer CDN

  • Tieyan Li
  • Yongdong Wu
  • Di Ma
  • Huafei Zhu
  • Robert H. Deng
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3269)

Abstract

The current packet based stream authentication schemes provide effective and efficient authentication over a group of packets transmitted on erasure channels. However, by fixing the packets in transmission, any packet manipulation will cause authentication failure. In p2p content delivery network where a proxy-in-the-middle is able to store, forward, transcode and transform the stream, previous schemes are simply unapplicable. To address the problem, we propose a flexible verification scheme that relies on special stream formats (i.e. Unequal Loss Protection ULP scheme [7]). We apply the so called Unequal Loss Verification ULV scheme into MPEG-4 framework. The encoding, packing, amortizing and verifying methods are elaborated in this paper. Our analysis shows that the scheme is secure and cost effective. The scheme is indeed content aware and ensures the verification rate intuitively reflecting a meaningful stream. Further on, we describe the general method of publishing and retrieving a stream in p2p CDN.

Keywords

Packet Loss Authentication Scheme Packet Loss Rate Digital Right Management Object Group 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Tieyan Li
    • 1
  • Yongdong Wu
    • 1
  • Di Ma
    • 1
  • Huafei Zhu
    • 1
  • Robert H. Deng
    • 2
  1. 1.Institute for Infocomm Research (I2R)Singapore
  2. 2.School of Information SystemsSingapore Management UniversitySingapore

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