Restricted attacks on semi-quantum key distribution protocols

Restricted attacks on semi-quantum key distribution protocols In this paper, we investigate single-state, semi-quantum key distribution protocols. These are protocols whereby one party is limited to measuring only in the computational basis, while the other, though capable of measuring in both computational and Hadamard bases, is limited to preparing and sending only a single, publicly known qubit state. Such protocols rely necessarily on a two-way quantum communication channel making their security analysis difficult. However, we will show that, for single-state protocols, we need only consider a restricted attack operation by Eve. We will also describe a new single-state protocol that permits “reflections” to carry information and use our results concerning restricted attacks to show its robustness. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Restricted attacks on semi-quantum key distribution protocols

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Publisher
Springer US
Copyright
Copyright © 2014 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-014-0802-2
Publisher site
See Article on Publisher Site

Abstract

In this paper, we investigate single-state, semi-quantum key distribution protocols. These are protocols whereby one party is limited to measuring only in the computational basis, while the other, though capable of measuring in both computational and Hadamard bases, is limited to preparing and sending only a single, publicly known qubit state. Such protocols rely necessarily on a two-way quantum communication channel making their security analysis difficult. However, we will show that, for single-state protocols, we need only consider a restricted attack operation by Eve. We will also describe a new single-state protocol that permits “reflections” to carry information and use our results concerning restricted attacks to show its robustness.

Journal

Quantum Information ProcessingSpringer Journals

Published: Aug 8, 2014

References

  • Authenticated semi-quantum key distribution protocol using bell states
    Yu, K-F; Yang, C-W; Liao, C-H; Hwang, T

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