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Robust EPR-pairs-based quantum secure communication with authentication resisting collective noise

Yan Zuo Chang, Shibin Zhang, Jian Li +1 more

Science China Physics Mechanics and AstronomyJun 12, 201419 citations

Cryptanalysis and Improvement of the Semi-Quantum Key Distribution Robust against Combined Collective Noise

Chia‐Wei Tsai, Chun‐Wei Yang

International Journal of Theoretical PhysicsApr 12, 201917 citations

Cryptanalysis and Improvement on Authenticated Semi-quantum Direct Communication Protocol using Bell States

Chia‐Wei Tsai, Chun‐Wei Yang

International Journal of Theoretical PhysicsDec 17, 20204 citations

Cryptanalysis and improvement of quantum broadcast communication and authentication protocol with a quantum one-time pad

刘志昊, 陈汉武

中国物理B：英文版Jan 1, 20160 citations

Cryptanalysis of quantum secure direct communication protocol with mutual authentication based on single photons and Bell states

Nayana Das, Goutam Paul

Abstract Recently, Yan et al . proposed a quantum secure direct communication (QSDC) protocol with authentication using single photons and Einstein-Podolsky-Rosen (EPR) pairs ( Yan L. et al ., Comput. Mater. Contin. , 63 (2020) 1297). In this work, we show that the above QSDC protocol is secure neither against intercept-and-resend attack, nor against impersonation attack. With any of these two types of attacks, an eavesdropper can recover the full secret message. We also propose a suitable modification of this protocol, which not only defeats the above attacks, but also resists all other common attacks. Thus, our modified protocol provides an improvement over the existing one in terms of security.Abstract Recently, Yan et al . proposed a quantum secure direct communication (QSDC) protocol with authentication using single photons and Einstein-Podolsky-Rosen (EPR) pairs ( Yan L. et al ., Comput. Mater. Contin. , 63 (2020) 1297). In this work, we show that the above QSDC protocol is secure neither against intercept-and-resend attack, nor against impersonation attack. With any of these two types of attacks, an eavesdropper can recover the full secret message. We also propose a suitable modification of this protocol, which not only defeats the above attacks, but also resists all other common attacks. Thus, our modified protocol provides an improvement over the existing one in terms of security.

arXiv:2007.03710Europhysics Letters (EPL)Aug 30, 202115 citations

Efficient fault-tolerant quantum dialogue protocols using a quantum reordering circuit of EPR pairs

Jason Lin, Chen-Yu Chang

Abstract This study proposes two efficient fault-tolerant quantum dialogue (QD) protocols that are robust against the collective-dephasing and collective-rotation noises, respectively. In the proposed protocol, the message carriers are decoherence-free quantum states that are resistant to the corresponding collective noise, provided that all quantum photon pairs of a transmitted unit remain within the same time window. These quantum states and their combinations are used to compose the decoy photon pairs to ensure the security of the transmission. An observation on the Bell measurement has allowed an EPR pair as a message carrier to Require only one of its photons for protection. That is, the measurement of one single photon in an EPR pair will gain no information on its actual Bell state. This property has effectively reduced the number of decoy photons in quantum transmission. Since the photons used in the message carriers are particles of EPR pairs, the proposed two fault-tolerant QD protocols required only half of the decoy photons to ensure the same level of security. In the transmission, one photon of each EPR pair is separated using a reordering mechanism, and a quantum logic circuit is designed and implemented to demonstrate the concept in practice. The reduction of decoy photons has significantly improved the qubit efficiency of the proposed QD protocols compared with other relevant existing works. Furthermore, the proposed schemes also have no information leakage problem.Abstract This study proposes two efficient fault-tolerant quantum dialogue (QD) protocols that are robust against the collective-dephasing and collective-rotation noises, respectively. In the proposed protocol, the message carriers are decoherence-free quantum states that are resistant to the corresponding collective noise, provided that all quantum photon pairs of a transmitted unit remain within the same time window. These quantum states and their combinations are used to compose the decoy photon pairs to ensure the security of the transmission. An observation on the Bell measurement has allowed an EPR pair as a message carrier to Require only one of its photons for protection. That is, the measurement of one single photon in an EPR pair will gain no information on its actual Bell state. This property has effectively reduced the number of decoy photons in quantum transmission. Since the photons used in the message carriers are particles of EPR pairs, the proposed two fault-tolerant QD protocols required only half of the decoy photons to ensure the same level of security. In the transmission, one photon of each EPR pair is separated using a reordering mechanism, and a quantum logic circuit is designed and implemented to demonstrate the concept in practice. The reduction of decoy photons has significantly improved the qubit efficiency of the proposed QD protocols compared with other relevant existing works. Furthermore, the proposed schemes also have no information leakage problem.

Physica ScriptaAug 2, 20235 citations

Cryptanalysis and Improvement on “Robust EPR-Pairs-Based Quantum Secure Communication with Authentication Resisting Collective Noise”

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Cryptanalysis and Improvement on “Robust EPR-Pairs-Based Quantum Secure Communication with Authentication Resisting Collective Noise”

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