Lupo, C. orcid.org/0000-0002-5227-4009, Peat, J.T. orcid.org/0009-0000-2160-9382, Andersson, E. et al. (1 more author) (2023) Error-tolerant oblivious transfer in the noisy-storage model. Physical Review Research, 5 (3). 033163. ISSN 2643-1564
Abstract
The noisy-storage model of quantum cryptography allows for information-theoretically secure two-party computation based on the assumption that a cheating user has at most access to an imperfect, noisy quantum memory, whereas the honest users do not need a quantum memory at all. In general, the more noisy the quantum memory of the cheating user, the more secure the implementation of oblivious transfer, which is a primitive that allows universal secure two-party and multiparty computation. For experimental implementations of oblivious transfer, one has to consider that also the devices held by the honest users are lossy and noisy, and error correction needs to be applied to correct these trusted errors. The latter are expected to reduce the security of the protocol, since a cheating user may hide themselves in the trusted noise. Here we leverage entropic uncertainty relations to derive tight bounds on the security of oblivious transfer with a trusted and untrusted noise. In particular, we discuss noisy storage and bounded storage, with independent and correlated noise.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
Keywords: | Research Areas; Quantum cryptography; Quantum information theory; Quantum Information, Science & Technology |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number Engineering and Physical Sciences Research Council EP/T001011/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Nov 2023 09:41 |
Last Modified: | 28 Nov 2023 09:41 |
Status: | Published |
Publisher: | American Physical Society (APS) |
Refereed: | Yes |
Identification Number: | 10.1103/physrevresearch.5.033163 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:205777 |