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DOI: 10.4230/LIPIcs.TQC.2020.12

A Device-Independent Protocol for XOR Oblivious Transfer

Authors: Srijita Kundu, Jamie Sikora, and Ernest Y.-Z. Tan

Published in: LIPIcs, Volume 158, 15th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2020)

Abstract

Oblivious transfer is a cryptographic primitive where Alice has two bits and Bob wishes to learn some function of them. Ideally, Alice should not learn Bob’s desired function choice and Bob should not learn any more than logically implied by the function value. While decent quantum protocols for this task are known, many quickly become insecure if an adversary were to control the quantum devices used in the implementation of the protocol. Here we present how some existing protocols fail in this device-independent framework, and give a fully-device independent quantum protocol for XOR oblivious transfer which is provably more secure than any classical protocol.

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Srijita Kundu, Jamie Sikora, and Ernest Y.-Z. Tan. A Device-Independent Protocol for XOR Oblivious Transfer. In 15th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 158, pp. 12:1-12:15, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020)

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@InProceedings{kundu_et_al:LIPIcs.TQC.2020.12,
  author =	{Kundu, Srijita and Sikora, Jamie and Tan, Ernest Y.-Z.},
  title =	{{A Device-Independent Protocol for XOR Oblivious Transfer}},
  booktitle =	{15th Conference on the Theory of Quantum Computation, Communication and Cryptography (TQC 2020)},
  pages =	{12:1--12:15},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-146-7},
  ISSN =	{1868-8969},
  year =	{2020},
  volume =	{158},
  editor =	{Flammia, Steven T.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.TQC.2020.12},
  URN =		{urn:nbn:de:0030-drops-127579},
  doi =		{10.4230/LIPIcs.TQC.2020.12},
  annote =	{Keywords: Quantum cryptography, device independence, oblivious transfer, semidefinite programming, security analysis}
}

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A Device-Independent Protocol for XOR Oblivious Transfer

Abstract

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