Universally Composable Privacy Amplification from Causality Constraints
Universally Composable Privacy Amplification from Causality Constraints
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DOI：
10.1103/physrevlett.102.140501
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发表时间：
2009-04-10
影响因子：
8.6
通讯作者：
Masanes, Lluis
中科院分区：
文献类型：
--
作者：
Masanes, Lluis
我们考虑方案的秘密密钥分配，作为一个资源的相关性，违反贝尔不等式。我们提供了第一个安全证明，根据最强的安全概念，所谓的普遍组合安全。我们的安全性证明并不依赖于量子力学的有效性，它仅仅依赖于在不同的物理系统之间不可能任意快速地发送信号。这允许在参与者不信任他们的量子设备的情况下进行秘密通信。
We consider schemes for secret key distribution which use as a resource correlations that violate Bell inequalities. We provide the first security proof for such schemes, according to the strongest notion of security, the so-called universally composable security. Our security proof does not rely on the validity of quantum mechanics, it solely relies on the impossibility of arbitrarily fast signaling between separate physical systems. This allows for secret communication in situations where the participants distrust their quantum devices.