Anonymous Quantum Communication

  • Gilles Brassard
  • Anne Broadbent
  • Joseph Fitzsimons
  • Sébastien Gambs
  • Alain Tapp
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4833)

Abstract

We present the first protocol for the anonymous transmission of a quantum state that is information-theoretically secure against an active adversary, without any assumption on the number of corrupt participants. The anonymity of the sender and receiver, as well as the privacy of the quantum state, are perfectly protected except with exponentially small probability. Even though a single corrupt participant can cause the protocol to abort, the quantum state can only be destroyed with exponentially small probability: if the protocol succeeds, the state is transferred to the receiver and otherwise it remains in the hands of the sender (provided the receiver is honest).

Keywords

quantum cryptography multiparty computation anonymity dining cryptographers 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Gilles Brassard
    • 1
  • Anne Broadbent
    • 1
  • Joseph Fitzsimons
    • 2
  • Sébastien Gambs
    • 1
  • Alain Tapp
    • 1
  1. 1.Université de Montréal, Département d’informatique et de recherche opérationnelle, C.P. 6128, Succ. Centre-Ville, Montréal (Québec), H3C 3J7Canada
  2. 2.University of Oxford, Department of Materials, Parks Road, Oxford, OX1 3PHUnited Kingdom

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