I present an eavesdropping on the protocol proposed by W.-H. Kye, et al. [Phys. Rev. Lett. 95, 040501 (2005)]. I show how an undetectable Eve can steal the whole information by labeling and then measuring the photons prepared by the user Alice.
@article{arxiv.quant-ph/0511072,
title = {Eavesdropping on Blind Quantum Key Distribution through a Labeling Attack},
author = {Marco Lucamarini},
journal= {arXiv preprint arXiv:quant-ph/0511072},
year = {2007}
}
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