Semi-quantum secret sharing protocol using W-state

2019 ◽  
Vol 34 (27) ◽  
pp. 1950213 ◽  
Author(s):  
Chia-Wei Tsai ◽  
Chun-Wei Yang ◽  
Narn-Yih Lee
Keyword(s):  
Secret Sharing ◽  
Bell State ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
W State ◽  
Important Research ◽  
Entanglement Property ◽  
Entanglement State ◽  
Entanglement States ◽  
Quantum Protocol

Quantum secret sharing protocol, which lets a master share a secret with his/her agents and the agents can recover the master’s secret when they collaborate, is an important research issue in the quantum information field. In order to make the quantum protocol more practical, the concept of semi-quantum protocol is advanced by Boyer et al. Based on this concept, many semi-quantum secret sharing protocols have been proposed. The various entanglement states (including Bell state, GHZ state and so on) were used to be the quantum resources in these SQSS protocols, except for W-state which is the other multi-qubit entanglement state and different from GHZ states. Therefore, this study wants to use the entanglement property of W-state to propose the first three-party SQSS protocol and analyze the proposed protocol is free from the well-known attacks.

CONTROLLED AND REMOTE IMPLEMENTATION OF A SPLIT QUANTUM ROTATION AND SENDER-ENCODED SECRET SHARING

2010 ◽  
Vol 24 (04n05) ◽  
pp. 431-437 ◽  
Author(s):  
LIBING CHEN ◽  
YUHUA LIU ◽  
HONG LU
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Quantum Network ◽  
Entanglement Property ◽  
Theoretical Scheme ◽  
Einstein Podolsky Rosen ◽  
Unit Probability

A quantum rotation can be divided into M pieces and teleported from a sender onto M distant receivers via the control of N agents in a quantum network. We utilize the entanglement property of a (2M + N + 1)-qubit Einstein–Podolsky–Rosen (EPR) — Greenberger–Horne–Zeilinger (GHZ) state to design a theoretical scheme for implementing these rotations remotely with unit fidelity and unit probability. The feature of the scheme is that, apart from a sender and M receivers, N agents are included in the process as controllers. Should any one of the N agents not cooperate, the receivers could not gain the original rotations. This scheme can be used to sender-encoded quantum secret sharing. It definitely has the strong security.

Multilayer quantum secret sharing based on GHZ state and generalized Bell basis measurement in multiparty agents

2017 ◽  
Vol 381 (38) ◽  
pp. 3282-3288 ◽  
Author(s):  
Xiao-Jun Wang ◽  
Long-Xi An ◽  
Xu-Tao Yu ◽  
Zai-Chen Zhang
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Bell Basis

Improvement of a multi-layer quantum secret sharing based on GHZ state and Bell measurement

2018 ◽  
Vol 16 (06) ◽  
pp. 1850053
Author(s):  
Xiaogang Cheng ◽  
Ren Guo ◽  
Yonghong Chen ◽  
Yanjie Fu
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Bell Measurement ◽  
Original Scheme

Recently, a novel Multi-layer Quantum Secret Sharing (MQSS) scheme based on GHZ state and generalized Bell measurement is presented in [X.-J. Wang, L.-X. An, X.-T. Yu and Z.-C. Zhang, Phys. Lett. A 381(38) (2017) 3282.]. The novelty of the MQSS scheme is that a quantum secret can be shared by up to [Formula: see text] parties at the [Formula: see text]th layer. In this paper, we show that the MQSS scheme can be significantly simplified and improved. The improved MQSS scheme is much easier to implement in practice and more efficient. In our improved scheme, the parties of the [Formula: see text]th layer need not put their particles together to carry out the generalized Bell measurement, which is needed to share the secret to the next layer in the original scheme. Instead, each party only has to carry out local operations.

Participant attack and improving dynamic quantum secret sharing using d-dimensional GHZ state

2019 ◽  
Vol 35 (06) ◽  
pp. 2050024
Author(s):  
Chun-Wei Yang ◽  
Chia-Wei Tsai
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State ◽  
Secret Key ◽  
Security Issue ◽  
Security Issues ◽  
Participant Attack ◽  
Sharing Function

In 2017, Qin and Dai [Quantum Inf. Process. 16, 64 (2017). https://doi.org/10.1007/s11128-017-1525-y ], proposed a dynamic quantum secret sharing (DQSS) scheme based on the d-dimensional state. However, as shown in this study, a malicious participant can reveal the secret key of other participants without being detected. Furthermore, this study identifies a security issue in Qin and Dai’s DQSS protocol pertaining to the honesty of a revoked participant. Without considering these security issues, the DQSS protocol could fail at providing secret-sharing function. Therefore, two improvements are proposed to circumvent these problems.

MULTIPLE CONCURRENCE OF MULTI-PARTITE QUANTUM SYSTEM

2010 ◽  
Vol 08 (07) ◽  
pp. 1169-1177 ◽  
Author(s):  
HUA WU ◽  
XIN ZHAO ◽  
YAN-SONG LI ◽  
GUI-LU LONG
Keyword(s):  
Quantum System ◽  
Pure State ◽  
Arbitrary Number ◽  
Cluster State ◽  
Ghz State ◽  
W State ◽  
Entanglement Property ◽  
Analytical Results ◽  
Global Entanglement ◽  
Number Of Particles

We propose a new way of description of the global entanglement property of a multi-partite pure state quantum system. Based on the idea of bipartite concurrence, by dividing the multi-partite quantum system into two subsystems, a combination of all the bipartite concurrences of a multi-partite quantum system is used to describe the entanglement property of the multi-partite system. We derive the analytical results for GHZ-state, W-state with arbitrary number of qubits, and cluster state with the number of particles no greater than 6.

Dynamic quantum secret sharing protocol based on GHZ state

2014 ◽  
Vol 13 (8) ◽  
pp. 1907-1916 ◽  
Author(s):  
Ci-Hong Liao ◽  
Chun-Wei Yang ◽  
Tzonelish Hwang
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State

QUANTUM SECRET SHARING IN DRIVEN CAVITY QED

2007 ◽  
Vol 05 (03) ◽  
pp. 335-342 ◽  
Author(s):  
CHUAN-JIA SHAN ◽  
ZHONG-XIAO MAN ◽  
YUN-JIE XIA ◽  
TANG-KUN LIU
Keyword(s):  
Quality Factor ◽  
Secret Sharing ◽  
Cavity Qed ◽  
Bell State ◽  
Quantum Secret Sharing ◽  
Driven Cavity ◽  
Bell State Measurement ◽  
State Measurement

We propose a protocol for implementing quantum secret sharing via EPR states in driven cavity QED. Both of the two receivers can read out the sender's secret if they cooperate. The protocol does not require the joint Bell-state measurement needed in the previous schemes. In the protocol the cavity is only virtually excited and thus the requirement on the quality factor of the cavity is greatly loosened.

Cryptanalysis on the improved multiparty quantum secret sharing protocol based on the GHZ state

2012 ◽  
Vol 86 (5) ◽  
pp. 055002 ◽  
Author(s):  
Xiu-Bo Chen ◽  
Shuai Yang ◽  
Yuan Su ◽  
Yi-Xian Yang
Keyword(s):  
Secret Sharing ◽  
Quantum Secret Sharing ◽  
Ghz State
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