Efficient device-independent quantum key distribution

  • Authors:
  • Esther Hänggi;Renato Renner;Stefan Wolf

  • Affiliations:
  • Computer Science Department, ETH Zurich, Zürich, Switzerland;Institute for Theoretical Physics, ETH Zurich, Zürich, Switzerland;Computer Science Department, ETH Zurich, Zürich, Switzerland

  • Venue:
  • EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
  • Year:
  • 2010

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Abstract

An efficient protocol for quantum key distribution is proposed the security of which is entirely device-independent and not even based on the accuracy of quantum physics. A scheme of that type relies on the quantum-physical phenomenon of non-local correlations and on the assumption that no illegitimate information flows within and between Alice’s and Bob’s laboratories. The latter can be enforced via the non-signaling postulate of relativity if all measurements are carried out simultaneously enough.