Quantum key distribution systems are open systems in the sense that in addition to attacking quantum states in the quantum communication channel, the eavesdropper can obtain additional information about the transmitted key using passive radiation detection of the transmitting and receiving stations, as well as active probing of the state of the equipment through a fiber communication line. In this paper, we consider the cryptographic robustness of a quantum cryptography system that uses a protocol with phase coding based on strongly weakened coherent geometrically uniform states. Non-strict single-photon information states, as well as information leakage through side channels, are taken into account by the generalized Decoy State method, taking into account joint collective measurements of information quantum states and quantum states in side channels. An estimate of the secret key length is obtained, which is expressed only in terms of the observed values at the receiving stati...

中文翻译：

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基于几何均匀相干态的量子密码学中信息泄漏的侧通道

量子密钥分配系统是开放系统，从某种意义上说，窃听者除了可以攻击量子通信信道中的量子状态之外，还可以使用发射站和接收站的无源辐射检测以及有源探测来获取有关发射密钥的其他信息。通过光纤通信线路的设备状态。在本文中，我们考虑了一种量子密码系统的密码鲁棒性，该系统使用基于强弱相干几何均匀状态的具有相位编码的协议。广义诱饵态方法考虑了非严格的单光子信息状态以及通过边信道的信息泄漏，考虑到信息量子态和侧通道中量子态的联合集体测量。获得密钥长度的估计值，该估计值仅根据接收站上的观察值来表示。