On the computational security of quantum algorithms for transformation of information

  • Authors:

  • V. G. Skobelev

  • Affiliations:

  • Institute of Applied Mathematics and Mechanics, National Academy of Sciences of Ukraine, Donetsk, Ukraine

  • Venue:
  • Cybernetics and Systems Analysis
  • Year:
  • 2010

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Abstract

The computational security of a quantum key distribution protocol is investigated under the assumption that the cryptanalyst can control the probabilities of selection of basic vectors for qubit measurement and also the simultaneous change of bases of the sender and addressee. A cipher based on the dense coding algorithm is introduced. It is established that this cipher is computationally secure if the secret key is a near-random sequence.