Reply to recent scepticism about the foundations of quantum cryptography
arXiv:1209.2423
Abstract
In a series of recent papers, Hirota and Yuen claim to have identified a fundamental flaw in the theory underlying quantum cryptography, which would invalidate existing security proofs. In this short note, we sketch their argument and show that their conclusion is unjustified --- it originates from a confusion between necessary and sufficient criteria for secrecy.
1 page + references and footnotes
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