Attacks against a Simplified Experimentally Feasible Semiquantum Key Distribution Protocol
Abstract
A semiquantum key distribution (SQKD) protocol makes it possible for a quantum party and a classical party to generate a secret shared key. However, many existing SQKD protocols are not experimentally feasible in a secure way using current technology. An experimentally feasible SQKD protocol, "classical Alice with a controllable mirror" (the "Mirror protocol"), has recently been presented and proved completely robust, but it is more complicated than other SQKD protocols. Here we prove a simpler variant of the Mirror protocol (the "simplified Mirror protocol") to be completely non-robust by presenting two possible attacks against it. Our results show that the complexity of the Mirror protocol is at least partly necessary for achieving robustness.
Cite
@article{arxiv.1806.06213,
title = {Attacks against a Simplified Experimentally Feasible Semiquantum Key Distribution Protocol},
author = {Michel Boyer and Rotem Liss and Tal Mor},
journal= {arXiv preprint arXiv:1806.06213},
year = {2018}
}
Comments
9 pages