Key-Rate Bound of a Semi-Quantum Protocol Using an Entropic Uncertainty Relation

@article{Krawec2018KeyRateBO,
  title={Key-Rate Bound of a Semi-Quantum Protocol Using an Entropic Uncertainty Relation},
  author={Walter O. Krawec},
  journal={2018 IEEE International Symposium on Information Theory (ISIT)},
  year={2018},
  pages={2669-2673}
}
  • Walter O. Krawec
  • Published 2 January 2018
  • Computer Science
  • 2018 IEEE International Symposium on Information Theory (ISIT)
In this paper we present a new proof technique for semi-quantum key distribution (SQKD) protocols which makes use of a quantum entropic uncertainty relation to bound an adversary's information. We develop several new techniques for analyzing SQKD protocols; furthermore, our new proof may hold application in the security analysis of other semi-quantum protocols or protocols relying on two-way quantum communication. 

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References

SHOWING 1-10 OF 29 REFERENCES

Limited Resource Semi-Quantum Key Distribution

A new SQKD protocol where the quantum user is also limited in her measurement capabilities is presented, its security is proved, and its noise tolerance is as high as "fully quantum" QKD protocols.

Security proof of a semi-quantum key distribution protocol

  • Walter O. Krawec
  • Computer Science, Mathematics
    2015 IEEE International Symposium on Information Theory (ISIT)
  • 2015
This paper proves the unconditional security of a particular semi-quantum protocol and derive an expression for its key rate, in the asymptotic scenario.

Quantum key distribution with quantum walks

This paper introduces a secure quantum key distribution protocol equipped with verification procedures against full man-in-the-middle attacks, and presents a one-way protocol and proves its security.

Security of a semi-quantum protocol where reflections contribute to the secret key

In this work, a complete proof of security is provided by deriving a lower bound of the protocol’s key rate in the asymptotic scenario and finding an error threshold value such that for all error rates less than this threshold, it is guaranteed that A and B may distill a secure secret key.

Mediated semiquantum key distribution

This paper designs a new quantum key distribution protocol, allowing two limited semi-quantum or "classical" users to establish a shared secret key with the help of a fully quantum server and proves the unconditional security of this protocol even in the worst case: when this quantum server is an all-powerful adversary.

Authenticated semi-quantum key distribution protocol using Bell states

This study presents the first authenticated semi-quantum key distribution (ASQKD) protocols without using authenticated classical channels, enabling establishment of a key hierarchy in security systems that also eases the key management problem.

RELATION BETWEEN INFORMATION AND DISTURBANCE IN QUANTUM KEY DISTRIBUTION PROTOCOL WITH CLASSICAL ALICE

The "semiquantum" key distribution protocol introduced by Zou et al. is examined and a trade-off inequality between information gained by Eve and the disturbance observed by legitimate users is derived.

Restricted attacks on semi-quantum key distribution protocols

A new single-state protocol that permits “reflections” to carry information is described and the results concerning restricted attacks to show its robustness are used.

Security of two-way quantum key distribution

This work provides a strategy to prove security for two-way quantum key distribution protocols against the most general quantum attack possible by an eavesdropper, and shows that a two- way protocol can outperform comparable one-way protocols.

Single-state semi-quantum key distribution protocol and its security proof

  • Wei ZhangDaowen Qiu
  • Computer Science, Mathematics
    International Journal of Quantum Information
  • 2020
This paper presents a new SQKD protocol that is secure against a restricted collective attack by computing a lower bound of the key rate in the asymptotic scenario, and proves that it is more efficient than the existing single-state SQKKD protocols by introducing an efficiency parameter.