Joint QKD-Post-Quantum Cryptosystems
Affiliation
Univ Arizona, Dept Elect & Comp EngnIssue Date
2020-08Keywords
Complexity theoryParity check codes
Protocols
Relays
Encryption
Quantum communication
quantum key distribution (QKD)
discrete variable (DV)-QKD
post-quantum cryptography
information reconciliationMcEliece cryptosystemsecret-key rate (SKR)
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Djordjevic, I. B. (2020). Joint QKD-post-quantum cryptosystems. IEEE Access, 8, 154708-154712.Journal
IEEE ACCESSRights
© 2020 by the authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
To extend the transmission distance and/or improve secret-key rate of QKD protocols, we propose to employ the joint QKD-post-quantum cryptosystems in which QKD is used for raw-key transmission while the post-quantum cryptography (PQC) subsystem to transmit parity bits for information reconciliation. We also describe a run-time configurable spatially coupled (SC)-LDPC code, derived from template quasi cyclic (QC)-LDPC, suitable for use in both information reconciliation and McEliece crypto-subsystem. For twin-field (TF)-QKD subsystem, the proposed joint cryptosystem, which takes the complexity of algorithm used to break the PQC subsystem into account, is able to achieve record distance of 1238 km over ultra-low-loss fiber.Note
Open access journalISSN
2169-3536Version
Final published versionScopus Count
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Except where otherwise noted, this item's license is described as © 2020 by the authors. This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.