辅以一次性密码加密的双向经典通信量子密钥分发协议的安全性
量子物理
2007-05-23 v3
摘要
本文中,我们考虑一种辅以一次性密码加密的双向经典通信量子密钥分发协议(QKD)。我们提出一种利用预共享密钥进行一次性密码加密的双向预处理,且带有该预处理的QKD的净密钥率超过了无此预处理时QKD的密钥率。该预处理可归约为具有双向经典通信及预共享EPR对的纠缠蒸馏协议(双向繁殖协议),且带有该预处理的QKD的安全性以与Shor和Preskill论证相同的方式得到保证。
引用
@article{arxiv.quant-ph/0608030,
title = {Security of quantum key distribution protocol with two-way classical communication assisted by one-time pad encryption},
author = {Shun Watanabe and Ryutaroh Matsumoto and Tomohiko Uyematsu},
journal= {arXiv preprint arXiv:quant-ph/0608030},
year = {2007}
}
备注
12 pages, 2 figure, version 2 corrected typo errors, version 3 added the analysis of the key rate in the BB84 protocol