학술논문
Decoy state HD QKD system for secure optical communication
Document Type
Conference
Source
2021 International Conference on Cyber Warfare and Security (ICCWS) Cyber Warfare and Security (ICCWS), 2021 International Conference on. :87-92 Nov, 2021
Subject
Language
Abstract
Quantum key distribution (QKD) is an unconditionally secure way of sharing secret cryptographic keys on a public channel. Recently, high dimension QKD protocols have gained focus to achieve better security against various attack models. Here, we focus on the robustness of high dimensional QKD protocol against two realistic attack models, i.e. photon number splitting (PNS) attack and beam splitter (BS) attack. We present the high dimensional quantum key distribution system that incorporates a decoy-state scheme with complex structured light (OAM modes) using the KMB09 protocol. The complete QKD system design with experimental setup details and evaluation results are presented. The experimental results show that our proposed decoy-state scheme is robust against both PNS and BS attacks.