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An experimental implementation of oblivious transfer in the noisy storage model

Author

Listed:
  • C. Erven

    (University of Waterloo
    Centre for Quantum Photonics, University of Bristol)

  • N. Ng

    (Center for Quantum Technologies, National University of Singapore)

  • N. Gigov

    (University of Waterloo)

  • R. Laflamme

    (University of Waterloo
    Perimeter Institute)

  • S. Wehner

    (Center for Quantum Technologies, National University of Singapore
    School of Computing, National University of Singapore)

  • G. Weihs

    (University of Waterloo
    Institut für Experimentalphysik, Universität Innsbruck)

Abstract

Cryptography’s importance in our everyday lives continues to grow in our increasingly digital world. Oblivious transfer has long been a fundamental and important cryptographic primitive, as it is known that general two-party cryptographic tasks can be built from this basic building block. Here we show the experimental implementation of a 1-2 random oblivious transfer protocol by performing measurements on polarization-entangled photon pairs in a modified entangled quantum key distribution system, followed by all of the necessary classical postprocessing including one-way error correction. We successfully exchange a 1,366 bit random oblivious transfer string in ~3 min and include a full security analysis under the noisy storage model, accounting for all experimental error rates and finite size effects. This demonstrates the feasibility of using today’s quantum technologies to implement secure two-party protocols.

Suggested Citation

  • C. Erven & N. Ng & N. Gigov & R. Laflamme & S. Wehner & G. Weihs, 2014. "An experimental implementation of oblivious transfer in the noisy storage model," Nature Communications, Nature, vol. 5(1), pages 1-11, May.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms4418
    DOI: 10.1038/ncomms4418
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    Cited by:

    1. Xuyue Guo & Peng Li & Jinzhan Zhong & Dandan Wen & Bingyan Wei & Sheng Liu & Shuxia Qi & Jianlin Zhao, 2022. "Stokes meta-hologram toward optical cryptography," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Simon Neves & Verena Yacoub & Ulysse Chabaud & Mathieu Bozzio & Iordanis Kerenidis & Eleni Diamanti, 2023. "Experimental cheat-sensitive quantum weak coin flipping," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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