1208.5827 (Horace P. Yuen)

Fundamental Security Issues in Continuous Variable Quantum Key
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Horace P. Yuen

Several fundamental issues in establishing security in continuous variable quantum key distribution are discussed, in particular on reverse reconciliation and security under heterodyne attack. It appears di?cult to derive quantum advantage in a concrete realistic protocol due to source and loss uncertainties, apart from the problem of bounding Eve's information after reconciliation. The necessity of proving robust security for QKD protocols is indicated.

View original: http://arxiv.org/abs/1208.5827