Basic configuration in quantum cryptography is a point-to-point quantum key distribution. In networks with quantum key distribution, the keys received on different network segments are different. For information encryption between arbitrary network nodes it is necessary to have agreement of the keys distributed in different segments of network through a public classical communication channel. The secrecy criterion for keys independently distributed in different network segments is formulated in terms of the trace distance. These are the so-called ε –secret keys. The paper deals with the issue of the secrecy of the agreed keys. We propose the method of secret keys agreement in which the agreement of two ε 1 , ε 2 –secret keys distributed in different segments leads to a common ##IMG## [http://ej.iop.org/images/1612-202X/17/5/055202/lplab77ceieqn1.gif] {$\left(\varepsilon_{1}+\varepsilon_{2}\right)$} –secret key. It is s...

中文翻译：

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具有量子密钥分配和受信任节点的通信网络中的秘密密钥协议

量子密码术的基本配置是点对点量子密钥分布。在具有量子密钥分发的网络中，在不同网段上接收到的密钥是不同的。为了在任意网络节点之间进行信息加密，必须使通过公共经典通信信道分配在网络的不同段中的密钥一致。根据跟踪距离制定了独立分布在不同网段中的密钥的保密标准。这些就是所谓的ε-密钥。本文讨论了协议密钥的保密性问题。我们提出了一种秘密密钥协商方法，其中，分布在不同段中的两个ε1，ε2 –秘密密钥的协商导致了共同的## IMG ## [http://ej.iop.org/images/1612- 202X / 17/5/055202 / lplab77ceieqn1。gif] {$ \ left（\ varepsilon_ {1} + \ varepsilon_ {2} \ right）$} –秘密密钥。是...