Attacks against a Simplified Experimentally Feasible Semiquantum Key Distribution Protocol

Autor:	Michel Boyer, Rotem Liss, Tal Mor
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	quantum key distribution semiquantum key distribution security attack Science Astrophysics QB460-466 Physics QC1-999
Zdroj:	Entropy, Vol 20, Iss 7, p 536 (2018)
Druh dokumentu:	article
ISSN:	1099-4300
DOI:	10.3390/e20070536
Popis:	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.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/da840d7702ad41f281b9e76e35314c07 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.