Semi-quantum inspired lightweight quantum key distribution protocols: asymmetric quantum key distribution and authenticated quantum key distribution

Abstract

In this thesis two quantum key distribution protocols are designed namely Semi-Quantum Inspired Lightweight Mediated Asymmetric Quantum Key Distribution (SQIL-MAQKD) and Semi-Quantum Inspired Lightweight Mediated Authenticated Asymmetric Quantum Key Distribution (SQIL-MAAQKD) First a protocol with a lower burden and better efficiency than the existing SQIL-MAQKD is designed The proposed SQIL-MAQKD protocol allows two lightweight quantum participants with asymmetric quantum capabilities to share a secret key with the help of an untrusted third party (TP) Then we combine the authenticated environment with lightweight quantum capabilities to design a semi-quantum inspired lightweight mediated authenticated asymmetric quantum key distribution (SQIL-MAAQKD) protocol using pre-shared keys to replace the authenticated classical channel (ACC) which also allows one to recycle the pre-shared key with successful execution of the protocol The purpose of this thesis is to design secure and efficient quantum protocols for practical implementation The proposed protocols have been shown to be robust under collective attacks

Date of Award	2020
Original language	English
Supervisor	Tzone-Lih Hwang (Supervisor)