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Title: Semi-device-independent security of one-way quantum key distribution

Abstract

By testing nonlocality, the security of entanglement-based quantum key distribution (QKD) can be enhanced to being ''device-independent.'' Here we ask whether such a strong form of security could also be established for one-way (prepare and measure) QKD. While fully device-independent security is impossible, we show that security can be guaranteed against individual attacks in a semi-device-independent scenario. In the latter, the devices used by the trusted parties are noncharacterized, but the dimensionality of the quantum systems used in the protocol is assumed to be bounded. Our security proof relies on the analogies between one-way QKD, dimension witnesses, and random-access codes.

Authors:
 [1];  [2];  [3]
  1. Department of Mathematics, University of Bristol, Bristol BS8 1TW (United Kingdom)
  2. (Poland)
  3. H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL (United Kingdom)
Publication Date:
OSTI Identifier:
22038558
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DATA TRANSMISSION; QUANTUM COMPUTERS; QUANTUM CRYPTOGRAPHY; QUANTUM ENTANGLEMENT

Citation Formats

Pawlowski, Marcin, Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk, and Brunner, Nicolas. Semi-device-independent security of one-way quantum key distribution. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.010302.
Pawlowski, Marcin, Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk, & Brunner, Nicolas. Semi-device-independent security of one-way quantum key distribution. United States. doi:10.1103/PHYSREVA.84.010302.
Pawlowski, Marcin, Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk, and Brunner, Nicolas. Fri . "Semi-device-independent security of one-way quantum key distribution". United States. doi:10.1103/PHYSREVA.84.010302.
@article{osti_22038558,
title = {Semi-device-independent security of one-way quantum key distribution},
author = {Pawlowski, Marcin and Institute of Theoretical Physics and Astrophysics, University of Gdansk, PL-80-952 Gdansk and Brunner, Nicolas},
abstractNote = {By testing nonlocality, the security of entanglement-based quantum key distribution (QKD) can be enhanced to being ''device-independent.'' Here we ask whether such a strong form of security could also be established for one-way (prepare and measure) QKD. While fully device-independent security is impossible, we show that security can be guaranteed against individual attacks in a semi-device-independent scenario. In the latter, the devices used by the trusted parties are noncharacterized, but the dimensionality of the quantum systems used in the protocol is assumed to be bounded. Our security proof relies on the analogies between one-way QKD, dimension witnesses, and random-access codes.},
doi = {10.1103/PHYSREVA.84.010302},
journal = {Physical Review. A},
issn = {1050-2947},
number = 1,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}