Choi, Ji-Woong Kang, Min-Sung Heo, Jino Hong, Changho Yoon, Chun-Seok Han, Sang-Wook Moon, Sung Yang, Hyung-Jin 2024-01-19T16:32:00Z 2024-01-19T16:32:00Z 2021-09-02 2020-10 0031-8949 https://pubs.kist.re.kr/handle/201004/118033 In challenge-response authentication, the claimants are required to prove that they are legitimate users while minimizing the exposure of their confidential information. We propose a quantum challenge-response identification protocol using single qubit unitary operators that utilizes the mechanism of challenge-response, unlike most existing protocols that use (one-time) password authentication. We utilized the commutation relations of single qubit unitary operators to design this protocol that ensures the security of confidential information during identification in a quantum computing environment. For security analysis, we estimated the average fidelity of two quantum states after performing operations with the unitary operators based on the random numbers generated by two users. Subsequently, we evaluated the amount of information acquired by an eavesdropper to show that the proposed protocol is robust against impersonation and intercept-measurement attacks. Finally, we described the advantages of the protocol by comparing it with the existing quantum identification protocols. English IOP PUBLISHING LTD PING-PONG TECHNIQUE IDENTITY AUTHENTICATION TELEPORTATION COMMUNICATION PROTOCOL Quantum challenge-response identification using single qubit unitary operators Article 10.1088/1402-4896/abaf8e 1 PHYSICA SCRIPTA, v.95, no.10 PHYSICA SCRIPTA 95 10 scie scopus 000573536700001 2-s2.0-85093651653 Physics, Multidisciplinary Physics Article PING-PONG TECHNIQUE IDENTITY AUTHENTICATION TELEPORTATION COMMUNICATION PROTOCOL quantum identification Quantum Challenge Response commutation relation average fidelity