Lum, Daniel J., Howell, John C., Allman, M. S. et al. (5 more authors) (2016) Quantum enigma machine: Experimentally demonstrating quantum data locking. Physical Review A. 022315. ISSN 1094-1622
Abstract
Shannon proved in 1949 that information-theoretic-secure encryption is possible if the encryption key is used only once, is random, and is at least as long as the message itself. Notwithstanding, when information is encoded in a quantum system, the phenomenon of quantum data locking allows one to encrypt a message with a shorter key and still provide information-theoretic security. We present one of the first feasible experimental demonstrations of quantum data locking for direct communication and propose a scheme for a quantum enigma machine that encrypts 6 bits per photon (containing messages, new encryption keys, and forward error correction bits) with less than 6 bits per photon of encryption key while remaining information-theoretically secure.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016, American Physical Society. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) |
Depositing User: | Pure (York) |
Date Deposited: | 09 Nov 2016 16:09 |
Last Modified: | 07 Nov 2024 01:22 |
Published Version: | https://doi.org/10.1103/PhysRevA.94.022315 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevA.94.022315 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:107244 |