Comment on "Dynamic quantum secret sharing"

Authors:
Ci-Hong Liao;Chun-Wei Yang;Tzonelish Hwang
Affiliations:
Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC 70101;Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC 70101;Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan, ROC 70101
Venue:
Quantum Information Processing
Year:
2013

Citing 3
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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.