Details

Autor(en) / Beteiligte

• Zou, Xiangfu
• Rong, Zhenbang
• Zhou, Nan‐Run

Titel

Three Attacks on the Mediated Semi‐Quantum Key Distribution without Invoking Quantum Measurement

Ist Teil von

• Annalen der Physik, 2020-08, Vol.532 (8), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2020

Quelle

Wiley Blackwell Single Titles

Beschreibungen/Notizen

• Semi‐quantum key distribution is a very interesting new branch of quantum key distribution. It can be implemented when one or more participants are restricted to operate quantum states only on the quantum computational basis. Very recently, a mediated semi‐quantum key distribution protocol without invoking two participants' quantum measurement has been proposed. The protocol allows two “classical” participants without sophisticated quantum capability to establish a shared secret key under an untrusted third party. It is claimed that the protocol is secure against several well‐known attacks. However, in this paper, it is first pointed out that there exist three attacks “Measurement Attack, Modification Attack, and Collective Attack” on the mediated semi‐quantum key distribution protocol without invoking quantum measurement. By proposed attacks, a malicious third party can obtain the secret key without being noticed by legitimated participants. It is pointed out for the first time that there exist security vulnerabilities in the mediated semi‐quantum key distribution protocol without invoking quantum measurement. Three effective attacks “Measurement Attack, Modification Attack, and Collective Attack” are constructed. By constructed attacks, a malicious third party can obtain the secret key without being noticed by legitimated participants.