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Large-Scale Pay-As-You Watch for Unicast and Multicast Communications

  • Antoni Martínez Ballesté [1] ; Francesc Sebé Feixas [2] ; Josep Domingo i Ferrer [1]
    1. [1] Universitat Rovira i Virgili

      Universitat Rovira i Virgili

      Tarragona, España

    2. [2] Universitat de Lleida

      Universitat de Lleida

      Lérida, España

  • Localización: Trust and Privacy in Digital Business: First International Conference,TrustBus 2004 Zaragoza, Spain, August 30 - September 1, 2004 Proceedings / coord. por Sokratis Katsikas, Günther Pernul, Javier López, 2004, ISBN 3540229191, págs. 261-268
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • This paper addresses the problem of pay-as-you-watch services over unicast and multicast communications. For each communication model, we present two solutions, non-verifiable and verifiable, depending on the existence or non-existence of trust between the source and the receiver(s). In verifiable schemes, the source obtains a proof of correct reception by the receiver(s); in non-verifiable schemes, receiver non-repudiation is not guaranteed, so there must be a trust relationship between source and receiver(s). While solutions for unicast pay-as-you-watch can be based on existing technologies, novel algorithms based on aggregation and multisignatures are needed and presented here to overcome implosion in multicast pay-as-you-watch.


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