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Katsumi Fujii

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Open access Oct 2026

Electromagnetic Side-Channel Vulnerability in QKD Equipment

Although the unconditional security of quantum key distribution (QKD) protocol has been mathematically proven, actual QKD network nodes may be vulnerable to side-channel attacks such as ElectroMagnetic (EM) wave leakage. In this study, we measured EM emissions from a prototype QKD device implementing a time-bin decoy B...

Mikio Fujiwara, Katsumi Fujii, F. Ono et al. · 0 citations

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