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Abstract: I review the ideas and main results in the derivation of security bounds inquantum key distribution for keys of finite length. In particular, all thedetailed studies on specific protocols and implementations indicate that nosecret key can be extracted if the number of processed signals per run issmaller than 10^5-10^6. I show how these numbers can be recovered from verybasic estimates.

Autor: Valerio Scarani

Fuente: https://arxiv.org/

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