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Your search keyword '"Tzonelish Hwang"' showing total 3 results
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3 results on '"Tzonelish Hwang"'

1. Dynamic quantum secret sharing protocol based on GHZ state

Author

Ci-Hong Liao, Tzonelish Hwang, and Chun-Wei Yang

Subjects
Homomorphic secret sharing, Computer science, business.industry, Statistical and Nonlinear Physics, Theoretical Computer Science, Electronic, Optical and Magnetic Materials, Greenberger–Horne–Zeilinger state, Quantum cryptography, Modeling and Simulation, Qubit, Signal Processing, Key (cryptography), Secure multi-party computation, Verifiable secret sharing, Electrical and Electronic Engineering, business, Quantum computer, Computer network
Abstract

This work proposes a new dynamic quantum secret sharing (DQSS) protocol using the measurement property of Greenberger---Horne---Zeilinger state and the controlled-NOT gate. In the proposed DQSS protocol, an agent can obtain a shadow of the secret key by simply performing a measurement on single photons. In comparison with the existing DQSS protocols, it provides better qubit efficiency and has an easy way to add a new agent. The proposed protocol is also free from the eavesdropping attack, the collusion attack, and can have an honesty check on a revoked agent.

Published
2014

2. Man-in-the-middle attack on quantum secure communications with authentication

Author

Tzonelish Hwang and Tzu Han Lin

Subjects
Length extension attack, business.industry, Computer science, Statistical and Nonlinear Physics, Man-in-the-middle attack, Computer security, computer.software_genre, Theoretical Computer Science, Electronic, Optical and Magnetic Materials, Quantum cryptography, Secure communication, Modeling and Simulation, Authentication protocol, Signal Processing, Chosen-ciphertext attack, Electrical and Electronic Engineering, Challenge–response authentication, Reflection attack, business, computer
Abstract

This study points out a man-in-the-middle (MIM) attack on many of quantum secure communication with authentication protocols. The MIM attack is due to a design carelessness on performing public discussions on a nonauthenticated classical channel. A possible solution is proposed to solve the problem.

Published
2013

3. Comment on 'Dynamic quantum secret sharing'

Author

Tzonelish Hwang, Chun-Wei Yang, and Ci-Hong Liao

Subjects
Bell state, Homomorphic secret sharing, Theoretical computer science, Computer science, Statistical and Nonlinear Physics, Quantum entanglement, Secret sharing, Theoretical Computer Science, Electronic, Optical and Magnetic Materials, Quantum cryptography, Modeling and Simulation, Signal Processing, Secure multi-party computation, Verifiable secret sharing, Electrical and Electronic Engineering, Quantum computer
Abstract

Hsu et al. (Quantum Inf Process 12:331---344,2013) proposed a dynamic quantum secret sharing (DQSS) protocol using the entanglement swapping of Bell states for an agent to easily join (or leave) the system. In 2013, Wang and Li (Quantum Inf Process 12(5):1991---1997, 2013) proposed a collusion attack on Hsu et al.'s DQSS protocol. Nevertheless, this study points out a new security issue on Hsu et al.'s DQSS protocol regarding to the honesty of a revoked agent. Without considering this issue, the DQSS protocol could be failed to provide secret sharing function.

Published
2013

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