kengao

A PhD student who majors in Quantum Cryptography. Study at Nation Cheng Kung University, Taiwan.

Curriculum Vitae
1271813141.11d9b23.94132a0294554758986528d3a03d3c85

Comment on: Secure Quantum Dialogue Protocol Based on W States Without Information Leakage

Shih-Hung Kao and Tzonelih Hwang, “Comment on: Secure Quantum Dialogue Protocol Based on W States Without Information Leakage,” Cryptology and Information Security Conference 2014, May 30-31, National Cheng-Chi University, Taipei, Taiwan.

This study points out an information leakage problem in Zhou et al.’s quantum dialogue (QD) protocol [Int. J. Theor. Phys. DOI 10.1007/s10773-013-1615-2]. From the public information announced in the protocol, an external eavesdropper can obtain partial secret information without any active attack.

Tagged: #Publications

Multiparty Controlled Quantum Secure Direct Communication Based on Quantum Search Algorithm

Shih-Hung Kao and Tzonelih Hwang, “Multiparty Controlled Quantum Secure Direct Communication Based on Quantum Search Algorithm,” Quantum Information Processing, Vol. 12, Issue 11 (2013), pp 3791-3805.

In this study, a new controlled quantum secure direct communication (CQSDC) protocol using the quantum search algorithm as the encoding function is proposed. The proposed protocol is based on the multi-particle Greenberger–Horne– Zeilinger entangled state and the one-step quantum transmission strategy. Due to the one-step transmission of qubits, the proposed protocol can be easily extended to a multi-controller environment, and is also free from the Trojan horse attacks. The analysis shows that the use of quantum search algorithm in the construction of CQSDC appears very promising. ResearchGate Springer

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Comment on “Efficient and Feasible Quantum Private Comparison of Equality against the Collective Amplitude Damping Noise”

Chun-Wei Yang, Shih-Hung Kao, and Tzonelih Hwang, “Comment on “Efficient and Feasible Quantum Private Comparison of Equality against the Collective Amplitude Damping Noise”,” Quantum Information Processing, Vol. 12, Issue 8 (2013), pp. 2871-2875.

Recently, Chen et al. [Quant Inf Proc doi: 10.1007/s11128-012-0505-5] presented a very promising quantum private comparison protocol for two participants to compare the equality of their wealth secretly—no one, except the participants, can reveal the comparison result. This paper points out that a malicious participant can reveal portion of the other participant’s secret information. Furthermore, an improvement is also proposed. ResearchGate Springer

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Cryptanalysis and Improvement of the Controlled Secure Direct Communication

Shih-Hung Kao and Tzonelih Hwang, “Cryptanalysis and Improvement of the Controlled Secure Direct Communication,” Chinese Physics B, Vol. 22, Issue 6 (2013), 060308.

This paper points out that, due to a flaw in the sender’s encoding, the receiver in Gao et al.’s controlled quantum secret direct communication (CQSDC) protocol [Chin. Phys. 14 (2005), No. 5, p. 893] can reveal the whole secret message without permission from the controller. An improvement is proposed to avoid this flaw. ResearchGate IOPScience

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On “Controlled Quantum Teleportation and Secure Direct Communication

Shih-Hung Kao and Tzohelih Hwang, “On “Controlled Quantum Teleportation and Secure Direct Communication”,” International Conference on Information Security and Intelligent Control 2012, Aug. 14-16, National Yun-Lin University of Science and Technology, YunLin, Taiwan.

Based on the controlled quantum teleportation protocol, a controlled quantum secure direct communication scheme (CQSDC) protocol, which transmits a one-bit message via the Greenberger-Horne-Zeilinger entangled state, is presented by Gao et al. in [Chinese Phys. Vol. 14 (2005), No. 5, p. 893]. However, through this article we want to enlighten of the fact that, due to a flaw in the control function, receiver can reveal the whole secret message without help from the controller. ResearchGate IEEE Explore

Tagged: #Publications
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