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01-04-2021 | Issue 4/2021

Quantum Information Processing 4/2021

Measurement-device-independent mutual quantum entity authentication

Journal:
Quantum Information Processing > Issue 4/2021
Authors:
Ji-Woong Choi, Min-Sung Kang, Chang Hoon Park, Hyung-Jin Yang, Sang-Wook Han
Important notes

Supplementary Information

The online version contains supplementary material available at https://​doi.​org/​10.​1007/​s11128-021-03093-1.
Ji-Woong Choi and Min-Sung Kang have contributed equally to this work.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Quantum entity authentication (QEA) based on security guaranteed by the laws of physics is the first and most important step for secure communication under the threat of a quantum adversary. QEA theoretically provides unconditional security; however, there is a threat of quantum hacking owing to imperfection of measurement devices in the actual implementation. The proposed measurement-device-independent (MDI) mutual quantum entity authentication (MQEA) scheme guarantees its security under any quantum attacks on measuring devices that have been reported. Using the MDI architecture in our scheme, the third party can only know the correlation of the transmitted qubits through the Bell state measurement, and it cannot obtain the secret key information. In order to confirm the security of the proposed scheme, we present a security analysis of secret key information that is pre-shared among legitimate users, and we analyze Eve’s impersonation attack. Furthermore, we compare the MDI MQEA with other existing QEA schemes

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