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How to Convert the Flavor of a Quantum Bit Commitment

  • Claude Crépeau
  • Frédéric Légaré
  • Louis Salvail
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2045)

Abstract

In this paper we show how to convert a statistically binding but computationally concealing quantum bit commitment scheme into a computationally binding but statistically concealing qbc scheme. For a security parameter n, the construction of the statistically concealing scheme requires O(n 2) executions of the statistically binding scheme. As a consequence, statistically concealing but computationally binding quantum bit commitments can be based upon any family of quantum one-way functions. Such a construction is not known to exist in the classical world.

Keywords

Quantum Circuit Binding Condition Security Parameter Commitment Scheme Oblivious Transfer 
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 2001

Authors and Affiliations

  • Claude Crépeau
    • 1
  • Frédéric Légaré
    • 2
  • Louis Salvail
    • 3
  1. 1.School of Computer ScienceMcGill UniversityCanada
  2. 2.KLabsZero-Knowledge Systems Inc.Canada
  3. 3.BRICS, Dept. of Computer ScienceUniversity of ÅrhusÅrhus

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