Choi, Ji-Woong Park Chang Hoon Lim, Na Hee Woo, Min Ki Kang, Min-Sung Han, Sang Wook 2024-01-12T06:32:20Z 2024-01-12T06:32:20Z 2023-11-24 2023-11 1094-4087 https://pubs.kist.re.kr/handle/201004/79744 Quantum identity authentication serves as a crucial technology for secure quantum communication, but its security often faces challenges due to quantum hacking of measurement devices. This study introduces a measurement-device-independent mutual quantum identity authentication (MDI MQIA) scheme capable of ensuring secure user authentication, despite the use of measurement devices vulnerable to quantum hacking. To realize the MDI MQIA scheme, we proposed and applied a modified Bell state measurement based on linear optics, enabling the probabilistic measurement of all Bell states. Furthermore, the proposed experimental setup adopted a plug-and-play architecture, thus efficiently establishing the indistinguishability of two photons prepared by the communication members. Finally, we successfully performed a proof-of-principle experimental demonstration of the proposed scheme using a field-deployed fiber, achieving quantum bit error rates of less than 3%. English Optical Society of America Measurement device hacking-free mutual quantum identity authentication over a deployed optical fiber Article 10.1364/OE.504224 1 Optics Express, v.31, no.23, pp.39261 - 39278 Optics Express 31 23 39261 39278 Y scie scopus 001108057600001 Optics Optics Article KEY DISTRIBUTION DISCRETE LOGARITHMS PLUG BIAS ALGORITHMS SYSTEMS SCHEME