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DOI: 10.4230/LIPIcs.FSTTCS.2025.7

Quantum Protocols for Rabin Oblivious Transfer

Authors: Erika Andersson, Akshay Bansal, James T. Peat, Jamie Sikora, and Jiawei Wu

Published in: LIPIcs, Volume 360, 45th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2025)

Abstract

Rabin oblivious transfer is the cryptographic task where Alice wishes to receive a bit from Bob but it may get lost with probability 1/2. In this work, we provide protocol designs which yield quantum protocols with improved security. Moreover, we provide a constant lower bound on any quantum protocol for Rabin oblivious transfer. To quantify the security of this task with asymmetric cheating definitions, we introduce the notion of cheating advantage which may be of independent interest in the study of other asymmetric cryptographic primitives.

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Erika Andersson, Akshay Bansal, James T. Peat, Jamie Sikora, and Jiawei Wu. Quantum Protocols for Rabin Oblivious Transfer. In 45th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2025). Leibniz International Proceedings in Informatics (LIPIcs), Volume 360, pp. 7:1-7:18, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@InProceedings{andersson_et_al:LIPIcs.FSTTCS.2025.7,
  author =	{Andersson, Erika and Bansal, Akshay and Peat, James T. and Sikora, Jamie and Wu, Jiawei},
  title =	{{Quantum Protocols for Rabin Oblivious Transfer}},
  booktitle =	{45th IARCS Annual Conference on Foundations of Software Technology and Theoretical Computer Science (FSTTCS 2025)},
  pages =	{7:1--7:18},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-406-2},
  ISSN =	{1868-8969},
  year =	{2025},
  volume =	{360},
  editor =	{Aiswarya, C. and Mehta, Ruta and Roy, Subhajit},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.FSTTCS.2025.7},
  URN =		{urn:nbn:de:0030-drops-250866},
  doi =		{10.4230/LIPIcs.FSTTCS.2025.7},
  annote =	{Keywords: quantum cryptography, oblivious transfer, information-theoretic security}
}

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Quantum Protocols for Rabin Oblivious Transfer

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