Title: Quantum Key Recycling with Optimal Key Recycling Rate based on Error Rate Show Chinese title

Title: 基于误码率的最优密钥回收量子密钥回收

Abstract: We propose a new Quantum Key Recycling (QKR) protocol, which can tolerate the noise in the quantum channel. Our QKR protocol recycles the used keys according to the error rate. The key recycling rate of the pre-shared keys in our QKR protocol is optimized depending on the real error rate in the quantum channel. And our QKR protocol has higher efficiency than the exiting QKR protocol with error-tolerance. The security proof shows the security of the recycled keys is universal composable. Show Chinese abstract

Abstract: 我们提出一种新的量子密钥回收（QKR）协议，该协议可以容忍量子信道中的噪声。 我们的QKR协议根据误码率回收已使用的密钥。 在我们的QKR协议中，预共享密钥的密钥回收率根据量子信道中的实际误码率进行优化。 并且，我们的QKR协议比现有的具有容错能力的QKR协议效率更高。 安全证明表明，回收的密钥的安全性是通用可组合的。