Asymptotically Secure Network Code for Active Attacks and its Application to Network Quantum Key Distribution
Abstract
When there exists a malicious attacker in the network, we need to be careful of eavesdropping and contamination. This problem is crucial for network communication when the network is realized by a partially trusted relay of quantum key distribution. We discuss the asymptotic rate in a linear network with the secrecy and robustness conditions when the above type of attacker exists. Also, under the same setting, we discuss the asymptotic rate in a linear network when we impose the secrecy condition alone. Then, we apply these results to the network composed of a partially trusted relay of quantum key distribution, which enables us to realize secure long-distance communication via short-distance quantum key distribution.
Cite
@article{arxiv.2003.12225,
title = {Asymptotically Secure Network Code for Active Attacks and its Application to Network Quantum Key Distribution},
author = {Masahito Hayashi and Ning Cai},
journal= {arXiv preprint arXiv:2003.12225},
year = {2020}
}
Comments
arXiv admin note: text overlap with arXiv:1703.00723