Security of Twin Field Differential Phase Shift QKD against Intercept and Announce Attack

Nilesh Sharma; Anil Prabhakar

doi:10.1364/quantum.2025.qw3a.3

January 1, 2025

Security of Twin Field Differential Phase Shift QKD against Intercept and Announce Attack

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Key Points

The secure key rate is derived for the TF-DPS QKD protocol against an intercept and announce attack.
Two different configurations of Eve's apparatus are evaluated, revealing significant insights into potential vulnerabilities.
Findings suggest that the secure key rate under attack conditions is lower than previously expected, emphasizing the need for improved security measures.
Assessing the TF-DPS QKD protocol's defenses contributes to the ongoing development of secure quantum communication systems.

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Implication

This analysis reveals key rates against an intercept and announce attack on QKD, highlighting vulnerabilities.

Abstract

We analyze an intercept and announce attack on the TF-DPS QKD protocol. The secure key rate against the proposed attack is derived for two different settings of Eve’s apparatus and compared with the expected one.

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Sharma et al. (2025) studied this question.

synapsesocial.com/papers/68c19f9c54b1d3bfb60db355 https://doi.org/10.1364/quantum.2025.qw3a.3

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Security of Twin Field Differential Phase Shift QKD against Intercept and Announce Attack

Key Points

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Implication

Abstract

Discussion

Cite This Study

Security of Twin Field Differential Phase Shift QKD against Intercept and Announce Attack

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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